KING ROLLER

SAT System - Weight Transfer System

The King Roller's frame incorporates HE-VA's Special Active Transfer (SAT) weight transfer system, a Hydraulic Folding System linked to two accumulators and a hydraulic pressure gauge. The pressure gauge allows the operator to set the amount of weight transfer to ensure even consolidation across the full width. The accumulators act as an oil buffer when the rolls are travelling over uneven ground and the hydraulic cylinders need to extend or shorten to allow the rolls to follow the contours in conjunction with the centre pivot on each roller gang. 

The additional central support bearings on each roll support section ensure that the axles are not placed under excessive stress, which is crucial for a large roller.

Contour Following

The five centre pivots, two folding pivots and the pivoting drawbar eye allow individual sections to truly follow the ground contours.

The wing links and centre section frame allow these 5 sections an amount of vertical float independent of the other two sections to ensure contour following on very uneven ground.  

Heavy Duty Design

Built to withstand high workloads, the HE-VA King Roller is also heavier than most other like-for-like rollers, ensuring a better finish.

The King Roller's folding mechanism has a deep wing link pivot with Teflon coated steel bushing top and bottom to provide strength for working on cultivated ground as well as rolling after drilling.

The wider gang sections of the King Rolls have a centre bearing as an additional support.

The rings are mounted on 60mm axles for strength and long life. These axles run on 4 bolt multi-sealed bearings protected inside u-profile steel.

Transport & Storage

An automatic hydraulic locking system secures the wings for transport without any need to leave the tractor seat.

In the completely folded position the weight of the wings is carried between the tractor and transport wheels improving stability.

King Roller Folds in Seconds

HE-VA rolls are available with a choice of ring types. All carefully designed to cope with today’s higher machine weights but retain the time-proven qualities of traditional ring engineering, the range includes new multi-spoke developments created to meet customer demand and changing farming methods.

New generation (NG) rings come standard with a 5-year warranty.

8 spoke Cambridge and Breaker
510mm / 20"

9 spoke Cambridge and Breaker
560mm / 22"

10 spoke Cambridge and Breaker
620mm / 24"

8 spoke Cambridge only
500mm / 20"

9 spoke Cambridge only
550mm / 22"

10 spoke Cambridge only
600mm / 24"