Prairie Special – 4000-6500L

The large frame Prairie Special range is a fully featured sprayer for growers looking for medium to large capacities.
The Prairie Special comes in tank capacities of 4000, 5000 and 6500L. It is available in two boom styles, Delta and TriTech, in widths ranging from 18m to 36m. Large diameter single wheels, fixed or airbag suspension axles and optional track widths provide the grower with a configuration for almost any situation. Built to a standard, not a price, the large frame Prairie Special gives you all the features and capacity you need with strength and durability you can depend on.

Features

400L rinse tank
Mounted neatly between the converging twin spar A-Frame the rinse water tank provides ample capacity for end of day clean out duties. The rinse tank can be filled from the EZ control station, and the volume can be clearly seen from the tractor seat.

Walk through platform
A hall mark of Goldacres sprayers has been the convenient walk through platform, complete with fold away open treads to give the operator sure footed safety.

Filtration
Located together the suction and twin pressure filters can be cleaned with a minimum of fuss.


Large diameter wheels
Fitted with large diameter 18.4×38 tyres reduces ground pressure and rolling resistance. Ten stud fully welded wheels with 16mm pressed centres provide long trouble free spraying.

3” sump drain
Decontaminating the tank is quick and easy with the 3” sump drain. The drain also features a cam lock fitting to connect a hose to assist in recovering the waste.

Options

Airbag suspension
The airbag suspension system uses a combination of rubber bushes, rolling lobe air springs, heavy duty dampeners and a ride height leveling valve to help provide the best possible ride for the chassis and boom. The axle is bolted in place allowing different track widths from 2000 to 3048mm (120”). Options for other wheel track widths are available on request.

SuperFlow 60L Induction hopper
Lower the hopper into the loading position by simply releasing the spring loaded catch, the SuperFlow hopper enables you to load powders, granules and liquids fast – up to 20 kg/min (Atrazine) using a large flow venturi system.
The SuperFlow uses a flanged 2” port tap with a large handle that’s easy to grip while wearing PPE and features push down drum rinse nozzle, tank flushing nozzle and simple tank level calibration.


Clock face Trijets
Easily change spray nozzles with a flick of your wrist with the Trijet nozzle body system with positive shutoff between each position (TriTech booms only).

Remote grease station
To gain the best possible boom ride and longevity from the boom, all pivot points must be regularly greased. The remote grease nipple option places four, six bank points in easy to reach locations on the boom. This speeds up the greasing process and also reduces the chance of critical points being missed.

Full length Mudguards
Covering 180 degrees of the wheel and manufactured from UV stable polyethylene plastic, these mudguards provide the best protection for your sprayer, also fitted with heavy rubber mudflaps which prevent mud build up on the boom. Three-point connection improves mudguard strength.

Zeta 260 l/min pump
Upgrade from the 170l/min pump to the 260l/min for high flow applications. The Zeta 260l/min pump is a smooth running six piston unit. Available in PTO or hydraulic drive.

Construction
Construction

To build the best sprayer you have to start with a solid platform
The large frame Prairie Special design incorporates many elements from the transport and earthmoving industries to ensure maximum strength, longevity and performance. Features like fully bushed pivot points, air ride suspension components and dampeners, to the best corrosion proof painting systems. Fully welded in rotating positional jigs ensures accuracy, repeatability and quality all combined with the experience gained with thousands of sprayers in the field.

  1. Chassis. Manufactured from high strength heavy walled 200x100x6mm RHS to minimise flexing and provide a stable platform for boom mounting. The rear chassis section is stepped in with integral boom and tank support allowing narrow wheel track options. Long wheel base (axle to drawbar) provides excellent boom yaw stability and reduces sideways pushing forces at the tractor.
  2. Drawbar pull. Narrow drawbar final section allows tighter headland turning. Full 360º swivel forged tow eye ensures maximum articulation between sprayer and tractor.
  3. Walk through platform. Access the main tank easily and safely from either side of the sprayer. No need to walk around the sprayer or tractor to access the other side. Open foot treads provide safe access to the platform in muddy conditions. Lower portion of treads folds up out of the way when not in use.
  4. Air bag suspension.* Specifically designed for the Prairie Special the air bag suspension system provides a smooth soft ride for both trailer and boom whilst still limiting excessive body roll. This is achieved through the use of the large diameter bi-functional rubber bush pivot system coupled with heavy walled torque tube construction. The bolt in axle also doubles as the air reservoir for the ride height levelling.
  5. Roller boom rest. The adjustable height boom rests with rubber roller supports provide a soft contact point for the boom wings, minimising the chance for damage.
  6. Boom parallelogram lift. The mechanism provides 1200mm of boom height adjustment as well as the vertical boom suspension. Three heavy walled torque tubes and diagonal bracing ensure less flexing which increases boom roll and yaw stability.
  7. TriTech boom centre section. Using lightweight trussing techniques the boom centre section is light yet extremely strong. All high load pivot points are fully bushed and greaseable, ensuring a long service life and optimum boom suspension performance.
  8. Hydraulic cylinders. All hydraulic cylinders use quality hardened greasable ball ends firmly bolted in position, ensuring minimal joint movement and maximum boom control.**
  9. Paint and anti-corrosion system. All major components are fully grit blasted using a fractured steel shot, essential for excellent paint adherence. The bare steel components are then treated using a high build filler primer which flattens the blasted surface. All un-welded joints are seam sealed then top coated using a Goldacres specific chemical resistant paint formula. Finally all components are baked in a high temperature oven until fully cured.
    All zinc plated pins and bolts on the boom are coated with rust preventative G15, which adds another level of corrosion protection.
  10. Full modular construction technique allows many options to be easily added at the time of build or at a later date as required. Dealer fitted options (DFO) can be retro fitted without the need for welding or drilling existing components.

*Air bag suspension optional. **TriTech booms only

Call us control freaks!
Call us control freaks!

In today’s fast-changing precision farming landscape it is easy to be left behind in the technology stakes.
That’s why Goldacres make it easy, with multiple solutions to suit the basic requirements to the top end needs.
For more than two decades Goldacres have relied on Raven to provide complete flow control systems with matched components to give quite simply, unmatched flow control accuracy and stability.
At the heart of the control system is a positive displacement pump run at constant rpm. This creates known flow rates across varying pressures, essential for accurate and stable flow control. In addition, two system critical components, a flow meter and three way regulator valve* combine to help achieve fast “on target rate”, plus greater flow stability with known tank agitation.
The Prairie Special range of sprayers feature three controller types to suit all requirements.

3 way electric section and regulation control system
For simple fuss-free flow and section control the 1500-2500L small frame Prairie Special can be fitted with a three section switch box with electric pressure regulation, this allows the operator to adjust the spray pressure to achieve the desired nozzle flow rate. The operator then drives at a set ground speed to maintain the correct application rate.
SCS450 Auto rate control system
The proven SCS range of sprayer consoles provide simple, fuss-free control of the flow control duties. The SCS450 features up to 5 boom section control, 2 pre-set auto rates plus manual pump speed readout, ground speed and several counters. If you are looking to further expand the capabilities, then the SCS range is compatible with all the leading automatic section controllers on the market.

ISO BUS Auto rate control system
Tractor cabins can get very busy with the vast range of systems requiring individual control consoles. The ISO BUS standard virtual terminal (VT) brings all the systems together into the one display. Essentially each system contains the brains, while the VT is simply the interface between the two. This means only one operator console is required.
Goldacres offer the option for ISO BUS compatibility, allowing numerous leading VT displays to take over the sprayer control duties. Features like flow control pressure, pump speed readout, plus all tractor steering and task control applications can all be all monitored by the one display.

A sprayer is only as good as its boom
A sprayer is only as good as its boom

Today’s sprayers are full of bells and whistles which makes spraying a whole lot easier, comfortable and efficient, but it’s easy to forget what the end goal is. Precise chemical application.
Boom control can be the difference between a good spray result, and no result at all. Goldacres understand this and it is why all our sprayer designs are centred around the boom first and foremost.

Why do Goldacres booms ride so well?
Goldacres pioneered the use of lightweight aluminium in the outer boom wings over two decades ago. The philosophy was, and still is today, that mass on a boom is fine so long as it is as close to the centre as possible. Reduced mass on the boom extremities reduces boom forces in both yaw and roll. This combined with the unique boom suspension results in a very stable boom ride, regardless of the terrain.
TriTech booms are contour following, meaning that the boom level will be referenced to the sprayer chassis and not purely on gravity such as a pendulum boom. This allows the sprayer to transverse the sides of hills and contours whilst keeping the boom level to the ground at all times. This results in placing the nozzle at the optimum height above the target.

Delta booms
Delta booms

Application made easy
The Delta boom range is ideal for growers looking to benefit from the proven stability and performance of the three-way suspension system in an economical package. Designed for light to medium duty applications with widths ranging from 15m to 24m*. Standard features include mild steel inner wings with lightweight aluminium outer wings, single operation boom folding system featuring the proven cable control with outer wing break back functionality, full size ¾” boom lines to minimise pressure drop across the sections for consistent spray application and full hydraulic lift and fold. More info…

TriTech booms
TriTech booms

Pitch, roll and yaw boom suspension
A boom which bounces, sways or yaws deposits chemical unevenly on the target. This can result in weed escapes and may even contribute to resistant weeds. More info …

Chemical handling
Chemical handling

SuperFlow 40 or 60L Induction Hopper
Lower the hopper into the loading position by simply releasing the spring-loaded catch, the SuperFlow hopper enables you to load powders, granules and liquids fast – up to 20 kg/min* (Atrazine) using a large flow venturi system.
The lower valve has a large handle that’s easy to grip while wearing PPE and features push down drum rinse nozzle, tank flushing nozzle and simple tank level calibration.

Transcal (not shown)
The 45L Transcal is a simple and effective way of transferring and measuring liquid chemical.
Using a venturi the Transcal can draw chemical from an open container using a probe, or out of an envirodrum, to provide a totally enclosed transfer system.
The Transcal measures chemical transferred by volume, not flow, providing accuracy regardless of the liquid viscosity.

Venturi Probe

Standard on all models across the range, the probe is a simple method of transferring chemical into the main tank directly from a drum. It uses a venturi mounted in the main product tank.
Chemical transfer pump (4000 & 5000L only)
The 12 volt chemical transfer pump has an open flow of up to 40 l/min and can transfer chemical from any container using a probe or envirodrum coupling.
The chemical transfer pump features an optional integrated flow meter to keep track of how much chemical has been transferred, providing a completely stand-alone transfer system at the flick of a switch.

Specifications
Features Prairie Special 4000L Prairie Special 5000L Prairie Special 6500L
Chassis Fully welded modular construction 200 x 100 x 6mm RHS.Convergingtwin spar A frame with single beam drawbar and forged tow eye Fully welded modular construction 200 x 100 x 6mm RHS. Converging twin spar A frame with single beam drawbar and forged tow eye Fully welded modular construction 200 x 100 x 6mm RHS. Converging twin spar A frame with single beam drawbar and forged tow eye
Stub axle size 90mm 90mm 90mm
Axle type Rigid axle – standard
Air bag suspension – optional
Rigid axle – standard
Air bag suspension – optional
Rigid axle – standard
Air bag suspension – optional
Axle track width 2050mm – other widths on request 2050mm – other widths on request 2050mm – other widths on request
Wheel and Tyre sizes 18.4 x 38 18.4 x 38 18.4 x 38
Full length poly mudguards with mudflaps Optional Optional Optional
Towbar Optional Optional Optional
Rate controller Raven SCS450ISO BUS – optional Raven SCS450ISO BUS – optional Raven SCS450ISO BUS – optional
Spray pump 170 l/min with PTO – standard
260 l/min with PTO – optional
Hydraulic drive – optional
170 l/min with PTO – standard
260 l/min with PTO – optional
Hydraulic drive – optional
170 l/min with PTO – standard
260 l/min with PTO – optional
Hydraulic drive – optional
Filtration 1 x suction, 2 x pressure & nozzle filters – standard 1 x suction, 2 x pressure & nozzle filters – standard 1 x suction, 2 x pressure & nozzle filters – standard
Water transfer (filling) 2” integrated fill point with EZ control 2” integrated fill point with EZ control 2” integrated fill point with EZ control
Main tank drain 3” remote operated with cam lock fitting 3” remote operated with cam lock fitting 3” remote operated with cam lock fitting
Main tank capacity 4000L 5000L 6500L
Rinse water tank capacity 400L 400L 400L
Tank rinse nozzles Twin rotating Twin rotating Twin rotating
Boom type and size Delta boom 18m, 20m, 21m, 24m
TriTech boom 24m, 28m, 30m
Delta boom 18m, 20m, 21m & 24m
TriTech boom 24m, 28m, 30m, 33m & 36m
Delta boom 18m, 20m, 21m & 24m
TriTech boom 24m, 28m, 30m, 33m & 36m
Boom outer Aluminium with outer wing break back feature Aluminium with outer wing break back feature Aluminium with outer wing break back feature
3D breakaway mechanism fitted to outerwing Delta boom – optional
TriTech boom – standard
Delta boom – optional
TriTech – standard
Delta boom – optional
TriTech boom – standard
Boom end protectors Delta boom – optional
TriTech boom – standard
Delta boom – optional
TriTech boom – standard
Delta boom – optional
TriTech boom – standard
Individual wingtilt Optional Optional Optional
Number of hydraulic remotes required 1 set for lift/lower1 set for fold in/out1 set for spray pump if hydraulic drive optioned2 sets for boom wing tilt if optioned 1 set for lift/lower1 set for fold in/out1 set for spray pump if hydraulic drive optioned2 sets for boom wing tilt if optioned 1 set for lift/lower1 set for fold in/out1 set for spray pump if hydraulic drive optioned2 sets for boom wing tilt if optioned
Number of boom sections 3 equal width section – standard
4 or 5 sections – optional
3 equal width section – standard
4 or 5 sections – optional
3 equal width section – standard
4 or 5 sections – optional
Trijets – Turret design Optional Optional Optional
Trijets – Clock face design Optional (TriTech booms only) Optional (TriTech booms only) Optional (TriTech booms only)
Electric operated fenceline nozzles Optional Optional Optional
Chemical induction hopper Optional – 60L Optional – 60L Optional – 60L
Transcal Optional Optional Optional
Chemical Transfer Pump N/A Optional Optional
Micromatic rinse socket & coupler Optional Optional Optional
Foammarker 100L Exacta doublesided Optional Optional Optional
Remote grease nipple bank Optional Optional Optional
Brochures / Catalogues
  • 1500-6500L Prairie Special
  • 2019
  • 2
  • GA9500005-R2
  • 15mb
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