Frequently asked questions
Why do Goldacres choose to fit a mechanical drive?
There are many reasons why mechanical drive is more suited to broadacre agricultural sprayers.
We fit mechanical drive because we have invested in the engineering time to provide a simple, low cost, flexible drive system which has been tested and proven over hundreds of thousands of operational hours around Australia. We have an extremely narrow leg profile and can provide an "on the go" track adjustment system which is in metric measurements made to suit Australian farming requirements.
Fuel economy - The fuel economy reports on Crop Cruisers are extraordinary. Operators are consistently talking of useage as low as 11 litres per hour in good conditions - and even in extreme conditions going below 30 litres per hour. Make some enquiries as to the fuel useage of the big engine hyrdo's and you will realise the fuel savings.
The efficiencies of the mechanical drive is one reason for this fuel economy - the mechanical drive allows the engine to run at much lower revs than hydro's which need full engine revs resulting in increased fuel consumption.
Gross weight - Goldacres engineers have always been very concious of the advantages of low gross weight and have acheived this with a sprayer that is up to 30% lighter than other machines in the class. The combination of an efficient drive, lower engine revs and low gross weight has produced an extremely fuel efficient sprayer.
Engine - An efficient drive system and low gross weight allows us to use a smaller engine - anyone with any doubt about the power of the 225hp engine only needs to drive a Crop Cruiser to be reassured. We believe we have the highest power to weight ratio in our class.
Maintenance & resale - There are two other important areas of saving in a mechanical drive. Firstly, the drive does not require maintenance to the same levels as a hydro. Frequent changes of expensive oil and filter systems, and adjustments are not required. Secondly, and most importantly, the resale value of Crop Cruisers remains high as potential buyers understand that they are not going to be faced with reconditioning costs of hydrostatic drives.
What are the advantages of hydrostatic drive?
It is much easier for an engineer to design a sprayer with a hydraulic motor on each leg than to design a whole extended transmission on each leg - truly quite a complex task. A hydraulic drive motor makes it much easier to build a track adjustable axle, and the dropleg can be made as long or short as required. Also a hydrostatic drive allows the machine to operate at higher engine revs, and a very slow forward speed - which is required in some horticultural applications.
A hydrostatic driven machine can also travel quickly backwards without changing gear - again sometimes a horticultural requirement. The assembly time and cost of a building a hydraulic drive system is also less than mechanical drive. These features remain a benefit to maufacturers, and some specialist users, but not to broadacre sprayer users.
What drive options are available?
Two and four wheel drive models.
Mechanical drive vs hydrostatic drive power transmission
There is a complete difference between a mechanical and hydraulic drive system. With a four wheel drive vehicle, or tractor, the drive is mechanical and therefore positive to the four wheels. In the case of a four wheel drive hydrostatic sprayer the drive is available to the four wheels, but in a bogging situation the oil is directed to the wheel motor with the least resistance.
Resale value is very important, is a Crop Cruiser going to hold its value?
Demand for secondhand Goldacres sprayers is very high, so resale value is usually very good.
Goldacres reduced maintenance requirements, mechanical drive and advanced spraying technology make them highly sought after as second hand machines.
Fuel consumption is not an issue for me, it is a cost I am going to have anyway
Yes, you will consume fuel no matter which machine you consider - however we have received reports that different models will consume significantly more fuel than the Crop Cruiser. The Goldacres Crop Cruiser will consume up to 3000 litres less fuel every 100 hours you spray. With rising fuel costs, and current prices of $1.25 per litre, saving up to $3750 every 100 hours you spray is likely to make fuel consumption an issue for you, and your customers.
Another way of calculating the savings possible on fuel consumption is to assess the possible term of ownership of the sprayer. If an operator kept his machine for three years and operated for 1000 hours per year a saving of 30lt/hour could amount to approximately 90,000 litres of fuel during the period of ownership.
Future considerations - It is also worth considering the importance of fuel consumption at the end of the period of ownership when the trade-in value is paramount - especially when the trend for fuel prices is upward. This may make fuel consumption an even more important consideration in the future.
How is machine weight going to be a problem for me?
A heavy machine can have numerous impacts on your spray application and efficiency. Issues such as compaction, "rutting" of tramtracks, bogging and excessive fuel consumption can often be a result of a machine which is heavy.
The efficiencies gained by purchasing a machine with greater tank capacity (and greater gross weight) can easily be outweighed by paddock damage and regular bogging.
I need high horsepower to get through all conditions, is 225hp enough?
Yes, 225hp will provide you with the perfect combination of power and economy which results in the Crop Cruiser having the highest power to weight ratio in its class.
Machines that are hydrostatically driven are often excessively heavy - they require higher horsepower, larger fuel and oil tanks which all contribute to the additional weight.
A hydrostatic drive system takes up a large amount of the engines capacity immediately - combine this with heavier gross weight and it is obvious why these machines require more horsepower. The Crop Cruiser has less weight and a highly efficient mechanical drive which results in a lower horsepower requirement and ultimately a lower fuel consumption.
Will I be trained in the use of the machine?
A Goldacres Accredited Service (GAS) technician will train you in the use of the machine to ensure you are completely comfortable with the operation, maintenance and servicing of the equipment. Prior to delivery of the machine, all operators are welcomed to the Goldacres factory to see their machine in the final stages of production, and complete a full day of training, which covers all aspects of the machine operation.
Training will also be included once you have taken delivery of your machine. It is of utmost importance that you are completely familiar with the sprayers operation after taking delivery. A comprehensive operator manual is also included for future reference.
What level of backup support will I get with my purchase?
Goldacres want to ensure that all customers have a complete understanding of our products and receive the highest levels of support, for this reason we have introduced the industry leading Goldacres Accredited Service (GAS) program.
Goldacres service technicians complete comprehensive training to become a GAS technician - giving them the necessary skills to support your equipment. This training will ensure your get accurate service and parts support.
GAS technicians and the Goldacres Customer Care program are in place to ensure that you get all the support you need.
Will I be able to get parts when i need them?
Goldacres spraying equipment is manufactured in Australia. This ensures that all common parts should be available locally through your dealer, or for any less common parts, available from Goldacres manufacturing plants which ensures you will not have lengthy delays waiting for parts to come in from overseas.
Major driveline components are supplied by well known brands such as Cummins, Rexroth and Allison who also have Australia wide service and support.
I require customisation of a sprayer to suit my needs, can Goldacres custom build a machine to my requirements?
Yes, custom building of spraying equipment is something that Goldacres has built a reputation for. It is crucial that the machine you are purchasing meets your needs - allowing you to acheive the maximum output with minimum consumption.
Being an Australian designed and manufactured machine, Goldacres will provide you with the greatest range of options available and are willing to consider any special requests you may have. The Goldacres factory is always open for factory tours and specialist support from Goldacres and dealer sales representatives will ensure you get all the advice you need to make an informed decision.
Do Goldacres have enough experience to manufacture self propelled sprayers?
Yes, Goldacres have produced Australia's most advanced range of spraying equipment for over 30 years and have been producing self propelled sprayers for over ten years. With more than 100 Self Propelled machines and 1000's of Trailing Sprayers in operation throughout Australia you can be sure that Goldacres have the ability to build a world class self propelled sprayer that is Australian built for Australian conditions.
Are the brakes on the Crop Cruiser adequate?
Yes, Crop Cruiser Evolutions are fitted with massive four wheel disc brakes operating through two independent circuits which have excellent stopping power.
The lighter gross weight Crop Cruiser SWB is fitted standard with front disc brakes and 4 wheel disc brakes are an option.
When evaluating a self propelled sprayer check the braking system to ensure that it will meet all your safety requirements.
How is a ROPS approved cabin of benefit to me?
Having a cabin which is ROPS approved ensures the highest level of operator safety in the event of an accident. Heavy duty structural engineering complies with the ROPS standard should a machine rollover occur.
Wheel rims and tyre carrying capacity?
Goldacres have paid particular attention to having rims, axles and tyres which are correctly specified for the loads and speeds they are supporting. A self propelled sprayer by its nature, carrying a large load with a high centre of gravity, puts extreme loads on tyres and rims and ideally they should be overrated for a fully loaded sprayer.
Have Goldacres considered fitting a larger tanks?
Yes, we have a range of larger tanks which could be fitted to our sprayer. The issue becomes one of gross weight, compaction, bogging probability, wheel, axle, and tyre carrying capacity. The fitting of DCI systems to our sprayer, reducing the chemical fill time, can be an effective way of speeding up a spray operation rather than increasing the tank size. At this stage Goldacres are offering tanks up to 5200 litres giving both large water capacity and the option of running dual products.
Could Goldacres fit a windrower on a front mount linkage?
No, this sounds like a good idea until some further investigation is made. Trying to turn a sprayer into a windrower creates many issues to be overcome. Firstly, a self propelled windrower pivots with the rear wheels, while a sprayer steers with the front. Obviously this pulls the cutter bar sideways, and is a situation which cannot be rectified. A self propelled windrower has wide, small diameter, load carrying tyres to support the substantial weight of a windrower. A sprayer has large, narrow diameter, tyres designed for minimum crop damage, not load carrying.
Hydraulics - A windrower has unique hydraulic requirements, which can require a substantial modification of a hydraulic system designed to operate a sprayer. Driving the cutter bar, driving the reel with speed adjustment, raising and lowering the cutter bar and the reel, compensating for side movement etc.
Attachment - Also the attachment between the vehicle and the windrower is complex, which permits the windrower to "float" over undulating ground and also allow a degree of "roll". The attachment also has to provide a degree of suspension, between the vehicle and the windrower. All these issues need to be addressed to produce a multi purpose vehicle, and we believe some of the important ones cannot be covered, so we have made the decision not to go down this path.
Do Goldacres fit front mounted booms on self propelled sprayers?
No, a front mount boom has only one advantage over rear mount, in that it is easier for the operator to see the boom when spraying. When spray operators were dependent on foam markers for guidance it was necessary to guide the end of the boom over the foam mark.
GPS guidance - Now however, with most sprayers fitted with some form of GPS guidance, the need to be constantly monitoring the boom position is no longer required. This then leads to the negative effects of a front mount boom. The machine is travelling continuously in a spray cloud depositing chemical on the underside of the machine, filter bowls, taps, ladder, hoses etc and putting additional load on the chemical filter for the airconditioner.
Spray material drifting back can also contribute to excessive corrosion of machine electrics. This is even an issue on a machine with a rear mount boom, but the situation is obviously much more serious with front mounting. A front mount boom also creates visibility issues when in the transport position.
How does SmartSteer work?
SmartSteer uses a tractor mounted sensor to allow the sprayer to follow in the same wheel track as the tractor. This reduces crop damage and promotes good control of yaw movement in the boom. Smartsteer operates by steering the wheels and not by articulating the chassis.
Is SmartSteer available on all models?
No, SmartSteer is only available on the Prairie Evolution models. SmartSteer is especially suited to GPS steering as changes in direction do not translate into boom yaw, common with articulated chassis steering systems.
How does Ultraglide work?
Ultraglide uses boom mounted ultrasonic sensors which measure the height of the boom above the ground and maintain the boom at a pre-set level.
Can I override the Ultraglide system and raise the boom manually?
Yes, the operator can manually tilt, raise or lower the boom and override the Ultraglide system.
Is Ultraglide available on all models?
Ultraglide is an option on the Prairie Evolution and Crop Cruiser Evolution models. (EOH spool valves are required.)
Do I need to fit another controller?
The Raven 4400 controllers have the built in capability of controlling the Ultraglide system so, it is not necessary to fit another controller.
Are alternative systems available for different terrain?
Yes, the configurations available are:
3 sensor (standard): one centre sensor, and two outer sensors on the boom wings.
5 sensor: one centre sensor, two inner boom wing sensors and two outer boom wing sensors.
5 sensor severe terrain: Five sensors and touch down wheels fitted to each outer wing.
If I fit touchdown wheels, then why fit Ultraglide?
The touchdown wheels provide an instant feedback to the Ultraglide hydraulics and provide a quicker reaction time than the sensors alone. specially useful for contour banks or paddocks with rapid changes in terrain and used with weedseeker.
How will I benefit from Goldacres Direct Chemical Injection?
The benefits to you will depend on your application. In general though the features you may benefit from are:
How does DCI work?
Neat liquid chemical is stored in tanks mounted on the sprayer. A positive displacement pump distributes chemical as required to the mixing chamber mounted before the boom valves. After exiting the mixing chamber chemical is then distributed to the boom sections. DCI eliminates the need to mix chemical in the main tank and reduces downtime in decontaminating the system.
Can Goldacres DCI draw chemical directly from envirodrums?
Yes, the Goldacres "Direct draw" system gives the flexibility to mount drums onto the sprayer and then connect directly to the DCI system eliminating the need for chemical transfer. Contact Goldacres for further information.
How are Goldacres DCI systems different to other systems coming onto the market?
The Goldacres DCI systems use the proven Raven positive displacement pump and control system as the basis of the DCI system - however Goldacres have custom designed tanks with increased capacity, fill and spray functions that are clearly labelled and easy to use as well as making it more convenient and safe to induct chemical and decontaminate the tanks.
Goldacres also offer "Direct draw" DCI spraying and 600 litre bulk DCI tanks.
Goldacres DCI is not available on any other brand of sprayer.
Is the Goldacres DCI system reliable?
Yes, the Goldacres DCI system is using technology that has been available for over 20 years - a series of sensors and a positive displacement pump ensure reliability. Goldacres have fitted over 300 DCI systems to sprayers operating in a wide variety of applications throughout Australia and can give you the sales and service support to ensure you are comfortable with the DCI system. Goldacres are the market leaders of DCI in Australia and have many years experience with DCI.
What is the lowest chemical rate that I can spray at?
High and low volume pump options are available to suit the rates you want to spray at. The high volume pump has a range of 135-5400ml/min and the low volume pump has a range of 40-1000ml/min. The pump capacity needs to be carefully considered in systems that use auto boom shutoff such as Smartboom or Accuboom.
How is the DCI system controlled?
The DCI system is controlled by the Raven automatic rate controller fitted in the cabin. The calibration information is entered into the console and then you simply operate with the rate controller as normal. Products in the DCI tanks can be switched on/off as required and rates can be increased/decreased while in operation.
Can I adjust the chemical rate easily while spraying?
Yes, with DCI chemical rates can easily be increased or decreased from the cabin via the controller. This gives the flexibility to change the chemical mix on the go without the need to add chemical to the main tank as would normally be required.
The chemical rate can be adjusted independently of the water rate.
Is the DCI system accurate?
Yes, the constant metering pump ensures the rate is unchanged from start to finish of the tank. This compares to tank mixing which requires high and constant agitation or large changes in concentration can occur.
Can I use granules and powders?
No, the DCI system is compatible with liquids only. Granules and powders, will need to be mixed in the main tank. Wetters and other adjuvants are normally also added to the main tank.
Is it possible to spot spray in specific areas?
Yes, the twin line spot spray option, exclusive to Goldacres, uses the Goldacres Direct Chemical Injection system and a pre-charged second boom line, which is separate from the first boom line, and an extra switch mounted on the console to allow instant spot spraying of specific areas of a paddock.
How do I get chemical into the tanks?
With Goldacres DCI chemical can be inducted safely via a closed transfer system into the tanks via the venturi probe or from an envirodrum using the micromatic coupling. It can also be pumped in with a transfer pump.
Is it possible to drain chemical out of the tanks and back into my drum?
Yes, the DCI system will keep waste to a minimum - leftover chemical can be easily transferred back into an appropriate container.
Can I flush out the tanks easily?
Yes, that is a unique feature of the Goldacres DCI system - an integrated tank rinsing nozzle in each tank makes flushing when changing chemicals convenient. The pump, filter and boom lines can be flushed with fresh water independently of the chemical tank.
Why do Goldacres use diaphragm pumps and not centrifugal pumps?
Diaphragm pumps are constant displacement pumps providing a consistent flow, largely unaffected by changes to operating pressure. Diaphragm pumps have good suction capacity and can easily self prime, they can also run dry without damage. On Goldacres sprayers we supply the operator with the pump RPM and therefore the operator can be confident of the flow rate of the pump and confident the agitation to sprayer tank is consistent, even when quite large changes to operating pressures are made.
Centrifugal pumps - In contrast a centrifugal pump produces less. It is not possible to be certain of the pump flow by monitoring pump speed and the limited suction capacity of a centrifugal pump adds a further area of uncertainty to pump output.
Maintenance - It is sometimes claimed centrifugal sprayer pumps require less maintenance than diaphragm pumps. At Goldacres we have not found this to be the case. Hydraulically driven centrifugal pumps purchase price is cheaper than diaphragm pumps and we believe this is the reason they are chosen by some manufacturers in preference to diaphragm pumps. We do offer centrifugal pumps as a cheaper alternative but prefer diaphragm pumps.What are some examples of flow vs pressure from a diaphragm pump?
The flow output by diaphragm pumps are largely unaffected by changes to operating pressure. For example:
UDOR 250lt/min pump @ 500rpm
0 Bar = 225.7lt/min output
10 Bar = 223.1lt/min output
If I have a 250Lt/min pump, what is the maximum achievable flow to the boom?
Goldacres design sprayers so that the flow to the boom should be approximately half the stated maximum flow of the pump - this is due to the pump also needing to supply agitation to the main tank. For example a 250 lt/min pump should realistically achieve a maximum flow of approximately 125 lt/min to the boom.
Can I hydraulically drive the pump?
Yes, hydraulically driven pumps are becoming more common as tractors come out with more hydraulic outlets. Fitting a hydraulic drive to the pump eliminates any maintenance or safety issues that are often associated with PTO shaft drives.
The UDOR diaphragm pumps fitted to Goldacres sprayers do not require a coupling between the hydraulic motor and pump. The MI pump is fitted with a flange which will accept this motor shaft. A hydraulic drive is required for tractors fitted with 1000rpm PTO drives.
Can you measure pump RPM with a hydraulic drive fitted?
Yes, an RPM sensor fitted on the shaft of the pump will provide you with a readout that will be shown on your controller.
How often will my pump require servicing?
There are many factors that can change how often a pump needs to be serviced - however it is common for pumps to to be serviced annually as preventative maintenance which will ensure reliability when the sprayer is in operation.
What type of oil should I run in my pump?
A quality multigrade engine oil should be used in the pump.
Why is the pump further away from the tractor on new models?
With the new chassis design we realised an opportunity to move the pump further away from the tractor and narrow the drawbar so that tighter turns when spraying are achievable. This reduces the risk of pump damage from linkage arms or other components.
Can I have a centrifugal pump fitted?
Centrifugal pumps can be fitted if specifically required.
What is the biggest tank available?
Goldacres offer tank sizes of up 8500 litres. It is important however to ensure that the tank size you are considering is the most suitable for your tractor, and application. As tank size increases more agitation is required to ensure a sufficient tank mix. As tank size increases the need for DCI becomes even more apparent. To give more capacity and flexibility, a Front Mount module or DCI can be used to significantly speed up application. There comes a point with a trailing sprayer where tank sizes and carrying capacity of the trailer exeeds the practicality of a two wheeled trailer. Bigger water tanks make the use of DCI more important and the larger this water capacity the more chemical storage room required.
Do Goldacres tanks have baffles?
No, Goldacres tanks do not have, or require, baffles due to the design and rotomoulded construction. This ensures that there are no "blind" areas when decontaminating the tank with tank rinse nozzles.
Is polyethylene chemical resistant?
Yes, Goldacres tanks are rotomoulded from food grade, UV rated, polyethylene which has a high chemical resistance. All Goldacres tank designs have been carefully engineered to ensure easy decontamination with simple shapes and minimal cavities which can make decontamination an issue.
Will Goldacres tanks deteriorate from sun damage?
All Goldacres tanks are moulded with a UV protected polyethylene blend which will provide protection from sun damage and deterioration.
Can you fit stainless steel tanks?
No, Goldacres only fit polyethylene tanks to our sprayers. Stainless steel tanks are prone to fatigue and cracking, and they can be difficult to decontaminate, with chemical remaining in welded areas. Corrosion can form in the welded areas and remain virtually invisible within the tank.
Can I have separate tanks with different chemical mixes?
Yes, Goldacres are the market leaders in dual product and DCI technology. Having multiple tanks and DCI modules, can allow you to apply up to 5 different products, at different rates, in 2 droplet sizes, in one pass. Depending on your chemical mix this can be a big benefit to ensure you are applying accurately and efficiently.
How do I know how much liquid is in the tank?
Goldacres offer dry and wet sight tube options which are fitted to the front of each main tank and a decal is fitted to provide a visual indication of how much water is in the tank. It is important to be aware that the sight tube is a guide only, and the sprayer must be on level ground.
How do I flush out the main tank?
The main tank can be flushed out thoroughly by filling it with fresh water (and a cleaning agent if required) and then disposing of the water through the boom or main tank drains in a suitable area. Tank rinsing nozzles can be fitted to assist in cleaning.
The tank rinsing nozzles operate under high pressure from the main pump and can be easily removed from the top of the tank for cleaning and inspection.
What kind of agitator is fitted to Goldacres sprayers?
A supermix venturi agitator is fitted to all Goldacres sprayers. This is capable of creating flows of up to 1300 lt/min. The Supermix agitator provides agitation while spraying and is serviceable from outside of the tank for efficent cleaning and inspection. The 8500lt model is fitted with two agitators to assist with the greater quantity of water that is to be mixed.
Can I fit a fill pump onto the sprayer?
Yes, a hydraulically driven fill pump can be fitted onto selected models. The onboard fill pump takes away the need for a petrol powered fire fighting pump or auxillary pumping system and gives you the convenience of being able to draw from any suitable water source.
Do I have to fill the tank through the main tank lid?
No, all Goldacres sprayers feature a quick fill (top mount bottom fill) point. This enables the connection of a fill hose with a cam lock fitting directly to the fill point - water is then transferred directly into the bottom of the tank.
The top mount bottom fill prevents the contents of the tank flowing back out of the main tank when a fill pump is switched off.
Is a fill filter fitted on Goldacres sprayers?
A fill filter is an option on the Prairie Evolution models. An inline fill filter is available as an option on the Special Evolution. A basket strainer is standard on all models.
Liquid fertiliser
Liquid fertiliser can be transfered to the tank via a cam lock fitting on the sump. Some additional fittings may be required.
When filling can I fill other tanks at the same time as the main tank?
Yes, you can direct water to other tanks such as the foam marker or flush water tank from the one location. The Goldacres EZ control clearly identifies the filling functions and makes the operation easy.
Do Goldacres tanks have sumps for tank draining?
Yes, all Goldacres tanks feature a large sump and large drain to ensure the complete drainage of the tank contents. The drain can be opened and closed remotely to ensure operator safety.
Can I easily measure the amount of chemical going to the main tank?
Yes, Goldacres have several options available. The Vortex induction hopper has internal markings to provide a guide of the amount of chemical being transferred. The Transcal allows chemical to be measured into the Transcal tank and then transferred to the main tank for mixing. Another option is a chemical pump which can be used to provide you with a digital readout of the amount of chemical transferred.
Can polyethylene tanks be repaired?
Yes, with the appropriate equipment and skill polyethylene tanks can be plastic welded if necessary.
Can I draw chemical directly from a drum to the main tank?
Yes, every Goldacres sprayer comes standard with a chemical probe, which when inserted into liquid, uses the venturi to draw liquid directly from the source to the main tank. Up to 30 litres of water per minute can be transferred via the chemical probe.
How do I transfer chemical from an envirodrum or shuttle to the main tank?
Chemical can be transferred from larger chemical drums to the main tank with the use of the optional micromatic couplings, Goldacres Transcal or chemical pumps - chemical can also be transferred using the probe.
What is the Transcal?
The transcal is a volumetric measuring device which allows you to safely draw liquid chemical via venturi from a drum to the transcal tank, the Transcal tank allows you to measure out the amount required, and then transfer via venturi to the main tank.
The Transcal will allow you to safely and conveniently transfer up to 30 litres of liquid per minute.
Will I require a Transcal if I choose to fit an induction hopper?
This depends on your circumstances. The Transcal is particularly useful for measuring more precise quantities of liquid chemical and it is also compatible with envirodrums - your need for both on your sprayer will come down to your needs when transferring chemical into the main tank.
How fast will the induction hopper transfer chemical to the main tank?
Different chemicals have different viscosities which makes a difference to the rate of transfer, however you can expect to transfer up to 50 litres of water per minute from the induction hopper to the main tank.
What is a venturi?
A venturi is a non mechanical device used by Goldacres to induct chemical into the system or to increase liquid flows. A venturi works by using a liquid flow which accelerates through an orifice in the throat of the venturi. The pressure drop over this orifice creates a vacuum in the chemical probe or suction line, drawing chemical into the system.
Where is the venturi located?
There are several venturi's located on the sprayer - each with different functions. The main tank venturi is the orange coloured fitting located at the top of the tank. The hopper venturi is located in the bottom "throat" of the hopper. The Supermix agitator also has a venturi and is integral to the design of the agitator.
Can I measure water or chemical mix going into the tank more accurately?
Yes, Goldacres have two different fill flow meters available to measure the liquid going into the tank. The Raven Flowmax 220 is an inline fill flow meter that mounts onto your fill hose and gives a digital readout of the quantity of water pumped - the Teejet 70 series is mounted permanently on the sprayer and also provides a digital readout of the quantity of water pumped, it can be programed to shutoff automatically when it has reached a pre-set quantity.
Is the chemical induction hopper a standard feature?
No, the chemical induction hopper is an optional accessory. While this is a very popular option, not everybody has a need for an induction hopper.
What is the capacity of the induction hopper?
There are two induction hopper options, the 40lt round model which is fitted to Compact and Special models and the 60lt rectangular Vortex model which is fitted to Prairie Evolution and Crop Cruiser Evolution models. A calibrated gauge is fitted internally to assist in measuring chemical.
The rectangular shape allows convenient rinsing of the most common drum types and the shape has been designed for the most efficient transfer of chemicals via venturi.
How many control consoles should be supplied with a sprayer?
This will vary according to the type and sophisication of the sprayer configuration. Controlling the functions on a sprayer can be broken into 3 main areas:
With this large amount of information we believe the most practical solution is to provide up to 3 consoles or more. This helps the operator to find the relevant information easily, makes troubleshooting simpler and also can avoid the situation of a total machine shutdown when only one issue has arisen.
How does an automatic rate controller work?
An automatic rate controller measures ground speed, normally from a wheel sensor, and maintains a constant application rate by electric pressure adjustment responding to speed changes. An inline flow meter registers the flow rates and the controller then provides an area application rate.
What controller will suit me?
The controller required for your sprayer will be determined by.
Choose the controller that will not only suit your needs now, but those in the future. Controllers such as the Raven 4400 or Envizio Pro have more capability to control advanced options and may future proof your machine.
For further information, the Goldacres broadacre catalogue outlines the features of each controller.
Is Raven a reliable brand of controller?
Yes, Raven is one of the most trusted brands of spray controllers in the world. Goldacres have been using Raven controllers for over 20 years and can provide technical support and parts for all Raven controllers fitted.
Goldacres introduced Raven to Australia and have worked together to implement many unique features. A key feature of all Raven controllers is that they are simple to use.
Can I still use the controller manually?
Yes, all Goldacres automatic rate controllers feature a manual mode where the pressure can be manually increased or decreased and boom sections switched on/off. Manual mode is very useful for troubleshooting and sprayer testing.
How do I calibrate the controller?
All calibration settings are accessible from the main screen - making it simple to check/alter settings if required. A laptop connection is not required.
What is the maximum number of boom sections that I can control?
The Raven 440 is capable of controlling three boom sections, the Raven 450 can control five boom sections and the Raven 4400 can control up to seven boom sections. The maximum number of boom sections that can be controlled by our standard controller range is ten. This requires use of the Raven Switchpro along with a compatible controller.
How do I switch the boom sections on/off?
Boom sections can be switched off manually on your automatic rate controller simply by using the toggle switch.
Is it possible to switch boom sections on/off automatically?
Yes, the Accuboom and Smartboom systems use GPS signals to identify areas that have already been sprayed and will automatically switch boom sections on/off as you pass over these areas.
What is the difference between Accuboom and Smartboom?
Both systems will give you automatic boom section control by using a GPS signal to determine the areas that have already been covered. The main difference with the two systems is how they are controlled.
Can I control Direct Chemical Injection with my Raven controller?
Yes, the Goldacres Direct Chemical Injection (DCI) system uses compatible Raven components. The SCS440 & 450 controllers require a "sidekick" controller to be fitted and the SCS4400 controller features the ability to control up to 4 different products in addition to the main spray tank.
Goldacres DCI is designed to be an integrated part of the sprayer.
Will my controller communicate with my GPS system?
Yes, Raven controllers are generally compatible with a variety of GPS systems. For specific information on the compatibility of your system please check with the supplier of your GPS.
Goldacres sprayers are designed for use with the Raven controller, therefore we strongly suggest that even though you may have a GPS system that can control the sprayer, you still purchase the sprayer with the Raven controller. This assists in troubleshooting and also ensures that you have a controller available when trading in the sprayer.
Is the Raven controller necessary if I have a GPS system that is capable of running the sprayer?
Goldacres strongly suggest that the sprayer is still purchased with the Raven controller. This will provide you with the appropriate controller that is required for troubleshooting and also gives more flexibility when reselling the sprayer.
Can I use a GS2 John Deere controller to operate a Goldacres sprayer?
GS2 will operate many of the basic sprayer functions, but in the more sophisticated sprayers there are limitations. For example, the current version of GS2 will not operate Ultraglide, DCI or 3TS. We also find troubleshooting easier with our sprayer controllers fitted. Probably the answer is, if you are considering a Special or a Compact sprayer with very basic requirements a GS2 will be okay. However, if you are considering a more sophisticated sprayer and still require some of the unique functions of the GS2 you may need both consoles. This can be a good solution because as one of our larger customers has commented, he prefers seperate control boxes because it means when there is a malfunction in an area it does not necessarily result in a complete breakdown of the sprayer operation.
Will I receive training on how to use my new sprayer?
Goldacres sprayers are simple to operate - the Goldacres Customer Care program will ensure that you are completely comfortable with how to use your sprayer. At the time of delivery you will be shown all key features and given instruction on how to use the sprayer. Each machine is accompanied by a comprehensive operator's manual and your Goldacres dealer is always available to answer any other questions that you may have.
Are the fenceline jets controlled by the Raven controller?
Fence line jets (if fitted) are controlled from a switch box supplied with the sprayer which is fitted in the cabin. If the controller has unused boom switches available, these can be used to control fence line jets.
How do I control the hydraulic functions?
The hydraulic functions can be controlled via a switch box (electric over hydraulic systems) or simply via the tractors hydraulic control levers in the cabin.
What is the EZ control?
The Goldacres EZ control is the fill station where the majority of filling and spraying functions are located. All functions are clearly labelled, and colour coded, to ensure that the operation is made "easy" and that downtime when filling is kept to a minimum.
A quickstart guide is located below the EZ control for quick and easy reference.
Are the electrical connections weather protected?
Yes, but for further protection, an electric grease is provided.
Where should I mount the controller in the cabin?
The controller and switch box should be securely mounted in the cabin in an appropriate position that is easily reachable. It is important to securely mount the controller so that it cannot become a projectile in the event of an accident.
A RAM mounting bracket kit is included with all controllers to make fitting easy. Your GAS technician will mount the controllers in the cabin during pre-delivery or installation.
How many remote outlets do I require on my tractor?
The number of remote outlets required depends on the number of hydraulic functions being controlled.
Prairie Evolution models can be optioned with electric over hydraulic (E.O.H) valves which includes a hydraulic valve block fitted at the rear of the sprayer that can control up to 7 hydraulic functions with one set of remotes. If a hydraulic pump is fitted you will require an additional set. Control of hydraulic functions is then via switches in the cabin.
Special Evolution and Prairie Evolution models not fitted with EOH valves require a minimum two sets of hydraulic outlets (One set for lift & one set for fold) - any other hydraulically controlled functions such as wing tilt or hydraulic pump drive will require additional sets. Control of the hydraulic functions will be via the tractors hydraulic control levers in the cabin. Wing tilt features two independentally operated hydraulic cylinders, therefore two sets of remotes are required.
In summary you may require up to 7 sets for the following functions: Lift, fold, tilt L, tilt R, bi-fold, fill pump and spray pump.
What if my tractor doesn't have enough remote outlets?
Goldacres offer simple to operate electric over hydraulic (E.O.H) valves as an option on Prairie Evolution models. This system allows you to control up to 7 hydraulic functions with one set of remote outlets from your tractor. The functions are simply controlled from switches in the cabin.
How does the Rapid Fire nozzle shutoff system work?
The Rapid Fire system provides instantaneous, individual, nozzle shutoff that is controlled by air operated solenoids at each nozzle - this system replaces the boom valves, and standard check valves, that shutoff the boom sections and nozzles. This provides greater flexibility in changing boom section widths and faster shutoff at the nozzle. Air operated solenoids are inexpensive and low maintenance. The RapidFire system reduces the amount of plumbing on the sprayer and allows for the fitting of a boom recirculation system. The ability to have more boom sections also works perfectly in conjunction with autoboom shutoff systems.
The RapidFire system can also be an economical alternative to traditional booms with multiple boom section control valves.
How can I reduce overlapping on areas that I have already sprayed?
Goldacres offer automatic boom section controls as an option. The Smartboom or Accuboom options use a GPS input to identify the areas that have been sprayed - these systems can then automatically switch boom sections on/off as you cover the paddock. This is particularly useful in odd shaped paddocks or when spraying around obstructions such as trees.
What are the benefits of Goldacres 3TS?
3TS dual lines can operate as 3 tiers, giving a flow rate from nozzle 1 changing to nozzle 2 then changing to 1 and 2 or the dual lines can be used simply to switch nozzles or the dual lines can be used to apply a blanket spray through one line and spot spray through the other with the addition of DCI or second tank.
What distance can the fence line jets effectively spray?
Goldacres have a number of fenceline jet options - the distance they can spray is subject to change depending on the size of nozzle, operating pressure and the rate being applied.
What is the standard nozzle spacing?
The standard nozzle spacing is 500mm. The first nozzle is 250mm from the centre of the boom.
Do nozzles come standard?
Yes, nozzles are included on most Goldacres booms. If you would prefer different nozzle types then you have the option of changing at the time of order.
Can I get the nozzle spacing set to my requirements?
Booms can be custom plumbed to your requirements if it is compatible with the boom design and does not require major reconfiguration. Common examples are 250mm & 381mm spacings to align with seeding spacings.
Why is polypropylene used for the boom lines?
Polypropylene is highly chemical resistant, lightweight and can be easily adapted to different nozzle spacings or section configurations. Polypropylene is flexible and crack resistant and is not affected by corrosion.
Other hoses used on Goldacres sprayers feature a nitrile lining to provide the highest chemical resistance and long service life.
Why are Goldacres boom lines 3/4" diameter?
3/4" boom lines are the most suitable for the flow rates required in broadacre spraying applications. Larger boom lines are typically fitted on imported machinery which has been primarily designed for the application of products that require very high application rates per hectare. Larger boom lines increase the time, and quantity of water, required to flush the system as well as increasing the time to build up and dispose of pressure in the lines.
Are the nozzle brackets height adjustable?
Yes, nozzle brackets can be adjusted up/down to suit different nozzle types. Goldacres nozzle brackets are made from an injection moulded UV stablised plastic which are lightweight and highly chemical resistant.
Do Goldacres offer boom recirculation?
Boom recirculation can be optioned on Tri Tech booms. This system is used in combination with Rapidfire and allows chemical to be purged through the system prior to spraying meaning that you can start off with pre-charged boom lines.
Can I spray different chemicals at the same time from separate boom lines?
Yes, Goldacres have options of dual boom lines, three tier system (3TS) and dual product systems which will allow you to apply chemicals from different boom lines and/or different chemical mixes at the same time.
How do I flush the boom completely?
Goldacres fit taps at the end of each boom section so that if a complete boom flush is required these can be opened up and water thoroughly flushed through the system. The optional Goldacres boom recirculation system is also an efficient method of flushing the boom when cleaning agents are in the main tank and being flushed through the system.
I now use Air Induction nozzles, so do I need 3TS on my new sprayer?
Air Induction nozzles do allow a larger range of pressures to be used, giving more flexibility of speed changes within one nozzle size. However 3TS is an inexpensive system which still can be very beneficial. With Twin Lines fitted, the addition of the 3TS system is only approximately $2000. The capacity to vary application rates, and speeds, by switching nozzles on and off with 3TS make this a very worthwhile investment.
The 3TS system is made up of dual lines and nozzles with a smart box and additional control valves. This second line is a major part of the cost of the system and is an important component of a modern sprayer. The second line allows easy changing from one type of nozzle to another, or if the sprayer has DCI or a second tank fitted it allows for dual product application.
RapidFire - The introduction of RapidFire air operated nozzle switching has simplifed dual lines - we can now offer 3TS on one boom line and also eliminate the need for boom valves.
Are multi nozzle bodies available on Goldacres booms?
Yes, Goldacres offer multi nozzle bodies as an option on all Delta and TriTech booms, however it is important to consider the advantages of the Goldacres Dual Line system when looking at your nozzle configurations.
Multi nozzle bodies require the operator to manually change up to 72 nozzle bodies (depending on boom width). Multi nozzle bodies have a number of internal components which will also require ongoing service and maintenance. The nozzle type and size still remain limited by an operating pressure range and droplet size specific to the nozzle selected, therefore while the change from one nozzle to another may seem convenient, it does not offer any other increase in functionality to the sprayer.
Goldacres Dual Line system not only provides greater nozzle spacing and coverage possibilities, it also greatly improves the functionality of the sprayer.
A Dual Line system provides operators with the option of:
What is the largest boom available?
Goldacres manufacture booms up to 44 metres in width and up to a maximum of 10 boom sections. When considering the boom size most suitable for you, it is important to look at the practicalities of the boom and how it will suit your operation.
What size boom is the most suitable?
This is something that is unique to your property and application. You should not simply choose the biggest boom size available - you need to consider how practical the boom will be across your terrain and how it matches up with other equipment on your property.
The effect of directional changes obviously increases with bigger booms. Wider booms are more prone to application rate variability on the outer sections, and the yaw effect increases exponentially as weight and length increase.
When selecting the most suitable boom for the job the objective should be to choose the one which will provide the best chemical placement, resulting in the best chemical performance, not necessarily the boom which will cover the most amount of area in a day.
What is Tri-Tech suspension?
The Goldacres Tri-Tech suspension system has been developed to provide you with the best boom ride possible and assist in an accurate application. The boom features three way suspension that works to reduce boom pitch, roll and yaw - the three enemies of accurate application.
A combination of springs and shock absorbers, as well hydraulic cylinders and accumulators all work together to provide the best boom ride possible. The Tri Tech suspension system has contributed to Goldacres consistently having the best boom ride when measured against competitor machines. (as reported in Farming Ahead magazine, 2009. Kondinin Group - data available from Goldacres upon request).
What is the difference with the Tri-Tech and Delta booms?
The suspension and construction of the booms is different. The sizes available is also a difference - the Delta is available in sizes from 12 - 24 metres and the Tri-Tech is available from 24 - 44 metres in width.
Goldacres suggest the Delta boom for medium size applications. For heavy duty and high use applications Goldacres suggest the Tri-Tech boom. The Tri Tech boom features hydraulic yaw dampening as an option. Tri Tech booms are standard with 95mm yaw springs, heavy duty yaw dampeners, heavy duty roll shockers and a heavy duty trussed design with twin bottom RHS chords - this suspension system ensures the best possible boom ride.
The Delta boom features 54mm yaw springs, single yaw dampeners, single roll shockers and a single bottom RHS chord - the Delta suspension system and design is perfectly suited to boom sizes up to 24 metres width.Is the three dimensional breakaway standard on all Goldacres booms?
The three dimensional breakaway is standard on Tri-Tech booms between 24 and 44 metres and an option on the 24 metre Delta boom. Goldacres three dimensional breakaway protects the boom by breaking up, backward and forwards when an obstruction is hit.
Why do Goldacres use a cable fold mechanism on many booms instead of hydraulic cylinders?
Goldacres cable fold system is not only an efficient way to fold the boom out and in, it also acts as a secondary breakaway system which allows the outer wing to move backward when an obstruction is hit. This greatly reduces the damage that would be otherwise caused to the boom if it was completely rigid.
The 39 and 44 metre Tri-Tech booms feature a hydraulic fold mechanism. This allows a triple fold system to be used on these larger booms to maintain a narrow transport width and reduce the overall length of the boom when folded.
What is the difference between contour following and self levelling booms?
Goldacres booms are contour following which means that the boom follows on the same plane as the sprayer axle - as the sprayer travels over contours the boom follows. A self levelling boom uses gravity to remain level - therefore as a sprayer travels over contours, with a self levelling boom, the boom would require adjustment by the operator to prevent ground strike.
Boom ride is similar no matter what machine I consider, how is Goldacres any different?
This is not the case - boom ride varies greatly between different machines. Goldacres Tri-Tech and Delta booms have 3 way suspension which actively works to reduce yaw (forward and backward), pitch (up and down) and roll movement of the boom when spraying. Booms that move excessively when in operation apply inaccurately - affecting the quality of the spray job, and long term life of the boom, as well as contributing to potential chemical resistance.
Goldacres booms have been tested in different conditions and applications throughout Australia - operators and independent testing has continually resulted in the Goldacres boom having the best boom ride measured.
Can Weedseeking sensors be fitted to Goldacres booms?
Yes, Weedseeking systems such as Weedseeker and Weed-it, can be factory fitted on Goldacres Tri-Tech booms. Goldacres can fit Ultra-glide severe terrain height control system to assist in maintaining the accurate height required for weedseeker operation, and the dual product system which is also needed for Weedseeker.
What options are available to limit boom damage from ground strikes?
Occasional ground strikes are hard to stop with large booms, Goldacres offer boom end protectors that provide protection to the front and bottom of the boom at the tips. Ultrasonic boom height levelling is also available on selected models - with this system a series of sensors, mounted on the boom, electronically control the height of the boom above the ground. This reduces the work required by the operator to maintain boom height.
Touchdown wheels are normally part of the Ultraglide severe terrain kit, but can be fitted without Ultraglide.
Why don't Goldacres fit touchdown wheels as standard?
The Goldacres boom has been designed to provide the best possible boom ride without the use of touchdown wheels as standard. Goldacres offer touchdown wheels as an option if required.
Touchdown wheels are set about 150mm above the ground and only touchdown occasionally. They are not set to continually run on the ground.
Why are Goldacres outer boom sections constructed from aluminium?
Aluminium is lightweight which reduces the overall boom weight and stress on all components as well as improving the boom ride and stability when in operation. The lighter weight reduces the inertial forces on the boom centre section, making it easier to control yaw movement of the boom, reducing over and under application, a major contributor to chemical resistance.
Aluminium also offers an extremely high level of chemical resistance which assists in acheiving a long boom life.
How long have aluminium booms been available?
Aluminium booms have now been a major feature on the larger Goldacres booms for 10 years. The result being an exceptionally well suspended boom with superior boom ride and long service life. The repair, and replacement, cost of aluminium is not expensive. Aluminium booms are no more expensive than steel and do not require painting.
Why isn't the entire boom made of aluminium?
Goldacres engineers have found that the lightweight aluminium outers and high strength steel centre section and inners is the ultimate blend of weight and stength.
Is individual wing tilt available?
Hydraulic wing tilt is available as an option on all models. Wing tilt will allow the operator to tilt the boom to follow contours or miss obstructions as required. Each side can be independently tilted with simple control from the cabin. (Wing tilt is required if Ultraglide is fitted.)
Can I spray with one wing open and one wing closed?
This is only an option on some booms up to 16 metres width. With larger booms the weight inbalance is too great. Goldacres offer bi-fold as an alternative for situations where a semi folded boom may be required. The bi-fold option ensures that boom stability is maintained and that stresses placed on the boom are kept to a minimum.
Can I spray with the boom at half width?
The bi-fold option will allow you to hydraulically fold the boom into a narrower width and cover areas where the wider boom becomes impractical.
Why don't Goldacres use cable suspension any longer?
Goldacres manufactured a cable suspended boom from 1983 - 1985. These booms were 60ft (18 metres) wide. Their performance was considered satisfactory although the yaw movement generated was somewhat excessive. When the requirement for larger booms eventuated we realised the yaw movement of this suspension system would prohibit further development of this design. At this point the Delta system, with a controllable yaw dampening system was developed and has now evolved to the current Tri-Tech suspension system which can be optioned with hydraulic yaw dampening.
The importance of yaw dampening cannot be overstated. A spray boom which is yawing backwards and forwards is over and under applying, defeating the attempts of controlled chemical application, and potentially resulting in the building of chemical resistance. Vertical movement of a spray boom also requires dampening but the consequences on effective spray application are potentially not as great as excessive yaw. A cable suspended boom relies on yaw movement for suspension and when it yaws backward and forward the boom goes up, changing the height of the boom above the target.
Do you have a standard model?
Yes, Goldacres have a comprehensive range of standard models.
Goldacres also have a range of smaller trailing sprayers designated "Compact".These offer tank sizes from 800 to 2500 litre and suit smaller farm operators and vegetable and pasture farmers.
What warranty do I get with my sprayer?
The standard warranty period on Goldacres sprayers is 12 months. Extended warranty options are available on selected models - for further information please contact Goldacres.
How fast can I spray?
For optimum spray results, the speed at which you spray should be matched to the ground and weather conditions and the product being applied. Nozzle manufacturers recommend speeds for optimum performance which are much slower than normally adopted in Australia.
Are Goldacres sprayers Australian made?
Yes, all Goldacres spraying equipment is Australian made. Goldacres have established alliances with many international specialist spraying component manufacturers which assists in the production of world class equipment.
Can I visit the factory to see the sprayers being built?
Yes, we encourage visits to our factory to get more of an understanding of what goes into your sprayer and how they are built. It gives us an opportunity to answer any questions that you have and advise you on what spraying technology may be suited your operation.
What is the Goldacres Customer Care program?
The Goldacres Customer Care program is unique to Goldacres, and it leaves nothing to chance. Before and after taking delivery of your sprayer, expert technicans carry out seven quality control checks to ensure that you are completely satisfied with your investment. Throughout the life of the sprayer, the Goldacres Customer Care program is there for you - That's the Goldacres difference. The Customer Care manual, supplied with all new machines, and the Goldacres customer care website (www.goldacres.com.au/customercare), will provide you with a comprehensive overview how you can benefit from the Goldacres customer care program.
What is the Goldacres Accredited service program?
The Goldacres Accredited Service (GAS) program has been implemented to ensure consistent levels of service and support to Goldacres customers. Accredited service technicians will ensure that you are familiar with all aspects of your sprayer and are there to support you with any service or maintenance that you may require. Goldacres sprayers are easy to operate, however to ensure that you are completely satisfied and confident in the sprayers operation all large broadacre sprayers include a GAS pre-delivery, installation and post delivery checks.
Who will carry out the GAS pre-delivery, installation and post delivery?
Pre-delivery, installation and post delivery will be carried out by a Goldacres Accredited Service technician.
Are Goldacres sprayers safe to use?
Goldacres engineers design our sprayers to the highest safety standards. Each model is assessed for safety using the Worksafe Victoria guidelines for plant and equipment. A copy of this assessment is available upon request from Goldacres.
What corrosion protection do Goldacres sprayers have?
Goldacres have taken a number of steps to ensure that our sprayers are well protected against corrosive substances.
The Goldacres paint process includes shot blast surface preparation, followed by primer, two specially formulated acrylic liquid top coats and then oven baking at 130ºc. This ensures an exceptionally good finish and excellent chemical resistance.
Where possible stainless steel bolts are used and all bolts are sprayed with a high quality, G-15 brand, rust preventative. In highly exposed areas covers are fitted to ensure even more protection of the sprayer.
Even though all surfaces are well protected it is important that the sprayer is washed down thoroughly following the use of corrosive substances, such as liquid nitrogen, and then recoated with G-15 as an extra safety measure.
Can I use the sprayer to apply fertilisers such as liquid nitrogen?
Yes, Goldacres sprayers, when used with the correct nozzles and care, can be used to apply liquid fertilisers. All chemicals have corrosive properties to some degree. Prevent damage to the machine by always consulting the chemical MSDS or the chemical supplier for advice concerning the corrosive properties of the chemical. It is the responsibility of the operator to carry out preventative and ongoing maintenance to the machine, particularly while applying chemicals with highly corrosive properties, such as liquid nitrogen.
Machine components should be coated with a suitable protectant prior to use, and then washed down, thoroughly, immediately after every application. Once washed down, a suitable protectant, such as G-15, should be re-applied. Consult the supplier of the substance if you require specific advice about the effectiveness of any particular protectant to prevent premature degradation of machine components.
Weight of liquid nitrogen?
Liquid Nitrogen weighs 1.28 times that of water and this needs to be allowed for when calculating gross vehicle weight.
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