Delta hydraulic boom

Delta Booms

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 pasture or broadacre spraying, there is a size to suit every situation. The wider centre section allows the booms to be folded in the transport position without obstruction to the tractor (3PL models). 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 3/4" boom lines to minimise pressure drop across the sections for consistent spray applicaton and full hydraulic lift and fold.

Typical uses

Broadacre spraying
Rowcrop spraying
Vegetable spraying
Horticultural spraying
Weed control
Pest control
Industrial spraying
Municipal spraying
Specialised cleaning
Inoculant spraying
Fertiliser application
Fire Fighting
Water transfer

Boom centre

Goldacres TriTech hydraulic boom centre section with hydraulic yaw and delta links

1. Hydraulic yaw

2 hydraulic cylinders are mechanically connected together either side of the pivoting boom centre section. As the centre yaws one cylinder is retracted, the other extended. This results in oil movement which compresses in a nitrogen charged accumulator. The result is precise boom yaw control.

2. Delta links

The key to the superior boom ride is the strategically placed delta links. In all there are 4 links. Each link features spherical ball ends which allow the centre to move in all directions.

3. Roll centre point

The roll centre point is the location at which the boom pivots around, both in roll and yaw.

4. Roll dampeners

Reduces high frequency oscillation of the boom roll.

3D breakaway

Goldacres TriTech hydraulic boom 3D breakaway to prevent damage to the boom tip

The end breakaway section protects the boom from stress damage if a ground, fence or tree strike occurs. The end section can break forwards, backwards and upwards. The spring mechanism uses an eccentric mounted sprocket and chain to provide maximum breakout force in the neutral position, then reduces the force the further the breakout.

Wing tilt

Goldacres TriTech hydraulic boom wing tilt

Handle undulating terrain with ease by adjusting the left or right wing with individual hydraulic tilt. This feature allows the wings to be raised or lowed to clear obstacles and maintain a consistent spray heig

RapidFlow / RapidFire

TriTech hydraulic booms with RapidFire (controlled nozzle shut off) and RapidFlow (Boom Recirculation)

Boom stability is only part of the chemical application story, optimum droplet sizing, pressure, nozzle flow rate and spray uniformity across the boom width are all critical to accurate chemical application


Over the last several years there has been a greater shift to precision farming technologies, such as auto steering and automatic boom section control. Both of these technologies are aimed at reducing spray overlaps and unsprayed areas, the former potentially causing crop burning and overuse of chemical. Depending on the field size and shape the wastage can be quite substantial. Goldacres have developed these practices further by introducing RapidFire air controlled nozzle shut off capability.

Traditional systems use motorised boom section valves to control water flow to the nozzles. Wider booms in conjunction with increased number of spray sections means a substantial amount of plumbing is required, thus increasing the delay in spray on and off times. In addition, the further the nozzle is from the centre of the boom the longer the delay becomes. RapidFire overcomes these problems by putting the switching capability right at the nozzle.

Small air lines at each nozzle switch the flow on and off in a fraction of a second, and more evenly across the boom width. Boom line plumbing is also greatly reduced, which quickens line priming and flushing as well as simplifies plumbing.

RapidFlow - Boom Recirculation

RapidFlow - Boom Recirculation* allows the sprayer boom lines to be fully primed without spraying a single drop. This reduces wastage at the start of a tank load or when switching chemicals. RapidFlow can also be used to thoroughly flush out the boom lines without the need to physically spray on the ground.

*RapidFire is not compatible with Direct Chemical Injection (DCI)

3TS - 3 tier system

TriTech hydraulic booms with 3TS three step gearbox for your boom

Nozzle technology has advanced in leaps and bounds over the years and a strong emphasis on drift control has influenced many nozzle designs, including air induction (AI) technology

The spray nozzles operating pressure range and size determine the application rate and speed band at which the driver must adhere to. This band is usually quite narrow. To overcome this Goldacres offer a 3 tier system (3TS) which effectively gives the driver a much wider operating band whilst still maintaining optimum droplet size. Think of 3TS as a three step gearbox. Each nozzle type has an operating pressure band for a given droplet size. As the first nozzle reaches the top of the pressure band it switches off and the next larger size nozzle switches on. When that nozzle reaches the top of that pressure band the first nozzle will switch on again, effectively giving three operating bands.

Boom height control

The system will keep the boom at an entered, preset height, allowing chemicals to be applied in an optimum spray pattern maximizing your inputs through consistent application and reduced spray drift.


TriTech hydraulic booms with optional bifold

Spray with a boom folded into a narrower width when conditions are not suited to a wide boom.


TriTech hydraulic booms parallelogram lift

The boom parallelogram lift provides 1200mm of boom height adjustment as well as the vertical boom suspension. The system is constructed of three heavy walled torque tubes and diagonal bracing to ensure less flexing which increases boom roll and yaw stability.

Delta booms are available on these sprayers

SprayerRapidFlowRapidFire3TSTilt3D breakawayBoom height controlBi-fold
3PL Medium FrameOpt
3PL Large FrameOptOptOptOpt
Prairie Special (1500-3000L)OptOptOpt
Prairie Special (4000-5000L)OptOpt
G3 / G4 Crop CruiserOptOptOptOptOptOptOpt

Delta booms widths

3PL Medium Frame
3PL Large Frame
Prairie Special (1500-2000L)
Prairie Special (2500L)
Prairie Special (3000L)
Prairie Special (4000-5000L)
G3 / G4 Crop Cruiser

Plumbing options

Availability3PL Medium Frame3PL Large FramePrairie Special (1500-3000L)Prairie Special (4000-5000L)G4 Crop Cruiser
TriJets - Turret design 500mm spacing
TriJets - Turret design 250mm spacing
500mm - Broadacre plumbing
500mm - Rowcrop plumbing
RapidFire with RapidFlow 500mm spacing
RapidFire with RapidFlow 250mm spacing
3TS, RapidFire with RapidFlow 500mm spacing
3TS, RapidFire with RapidFlow 250mm spacing
RapidFire with RapidFlow 500mm spacing with TriJets
RapidFire with RapidFlow 250mm spacing with TriJets
3TS, RapidFire with RapidFlow 250mm spacing (staggered) with TriJets on tier 1
3TS, RapidFire with RapidFlow 250mm spacing (staggered) with TriJets on tier 1 & 2