cruiser CON­TROL

A class-lead­ing boom ride and full me­chan­i­cal driv­e­line make the Goldacres G5/G6 se­ries Crop Cruiser stand out from other sprayers

Farms & Farm Machinery - - Front Page -

The G5/G6 se­ries Crop Cruiser from Goldacres is the com­pany’s flag­ship self-pro­pelled sprayer, with an im­pres­sive fea­ture set led by its class-lead­ing boom ride and full me­chan­i­cal driv­e­line.

With a 5200- or 6000-litre tank, the G5/G6 Crop Cruiser is a high-ca­pac­ity, high-clear­ance and high-per­for­mance sprayer de­signed for large-scale dry-land farm­ing.

With an even spray re­sult de­pen­dent on a sta­ble boom in any ter­rain, Goldacres pi­o­neered the use of light­weight alu­minium in the outer boom wings over two decades ago.

The phi­los­o­phy is 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, which is also helped by a unique boom sus­pen­sion.

This three-way sus­pen­sion uses a com­bi­na­tion of springs and shock absorbers, as well as hy­draulic cylin­ders and ac­cu­mu­la­tors that work to re­duce boom pitch, roll and yaw.

The TriTech booms used on the G5/G6 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. Goldacres says this al­lows the sprayer to trans­verse the sides of hills and con­tours while keep­ing the boom level to the ground at all times. This re­sults in the noz­zle be­ing placed at the op­ti­mum height above the tar­get.

Added to this are op­ti­mum droplet siz­ing, pres­sure, noz­zle flow rate and spray uni­for­mity across the boom width.

In terms of driv­ing dynamics, Goldacres says it has set the in­dus­try bench­mark with the Crop Cruiser through the use of a rigid chas­sis, a five-link sus­pen­sion and a me­chan­i­cal driv­e­line sys­tem.

The main chas­sis is a fully welded, tor­sion­ally rigid semi-truss struc­ture that pro­vides a bal­ance be­tween strength and weight, while the five-link sus­pen­sion is de­signed to pro­vide a sta­ble yet smooth ride through the use of polyurethane bushed heavy-duty torque rods, rear anti-sway bar and air springs on all four cor­ners.

When asked why the com­pany had gone for the me­chan­i­cal driv­e­line, Goldacres sales and mar­ket­ing op­er­a­tions man­ager Stephen Richards says there are nu­mer­ous ben­e­fits, in­clud­ing: lower main­te­nance costs, less noise, lower fuel use, less heat gen­er­a­tion, lower en­gine revs, lower power re­quire­ments, more torque at the wheels and longer com­po­nent life.

“All of this adds up to sub­stan­tially lower op­er­at­ing costs,” Richards says. “Our cus­tomers are telling us that the Crop Cruiser can use up to a third of the fuel used by many hy­dro­static drive sprayers.”

Ac­knowl­edg­ing that sprayer op­er­a­tors need to put in long hours day af­ter day, Goldacres has de­signed a ‘busi­ness class’ ROPS cabin for the G5/G6 se­ries Crop Cruiser.

Its fea­tures in­clude Euro­pean styling and fin­ishes, a nar­row-pro­file four-post frame, dou­ble-skinned rear wall and ex­ten­sive sound dead­en­ing. The cab is cen­trally lo­cated be­hind the front axle for re­duced ver­ti­cal move­ment, and the ride is made smoother through the use of an air seat and a five-link airbag chas­sis sus­pen­sion sys­tem.

Er­gonomic com­fort is catered for with a seven-way ad­justable seat, ad­justable side con­sole, ad­justable G-Mo­tion han­dle po­si­tion and ad­justable steer­ing col­umn.

The ma­chines use a Raven spray con­trol sys­tem, at the heart of which is a pos­i­tive-dis­place­ment pump which runs at a con­sis­tent RPM, cre­at­ing known flow rates across vary­ing pres­sures. 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 Raven SCS4400 sprayer con­sole is de­signed to be sim­ple to use and fea­tures up to seven boom sec­tion con­trol switches (ex­pand­able to 10), man­ual pump speed read­out, ground speed, three-tier sys­tem (3TS), di­rect chem­i­cal in­jec­tion (DCI), as well as sev­eral coun­ters such as area and vol­ume.

Goldacres of­fers the op­tion for ISO BUS com­pat­i­bil­ity, which brings all the sprayer’s con­trol sys­tems to­gether into the one dis­play and al­lows nu­mer­ous lead­ing VT dis­plays to take over the con­trol du­ties.

Two more tech­nolo­gies im­prov­ing pre­ci­sion and ease of use are the Rapid­Fire air-con­trolled noz­zle shut-off ca­pa­bil­ity and RapidFlow boom re­cir­cu­la­tion sys­tem.

Re­gard­ing the for­mer, Goldacres says: “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.”

The RapidFlow sys­tem, on the other hand, al­lows the sprayer boom lines to be fully primed from the driver’s seat without spray­ing a sin­gle drop. This re­duces wastage at the start of a tank load or when switch­ing chem­i­cals.

The sys­tem can also be used to thor­oughly flush out the boom lines without the need to phys­i­cally spray on the ground.

Our cus­tomers are telling us that the Crop Cruiser can use up to a third of the fuel used by many hy­dro­static drive sprayers

For more in­for­ma­tion call (03) 5342 6399 or visit

1 2 3

Newspapers in English

Newspapers from Australia

© PressReader. All rights reserved.