HE-VA Cambridge Rolls

Cambridge Rolls - Introduction

Don't just roll - Cultivate, level and consolidate all in one pass! By switching to HE-VA Cambridge Rolls technology you will reduce
your time and costs and improve effectiveness.

HE-VA now offer a Shattaboard, Shattaboard with slicing plates and an S-tine board to turn their Cambridge Rolls into an all round cultivator. Coupled with a wide choice of ring types this means you can specify the right machine to suit any type of land.

Don't just roll it - HE-VA roll it!

All In One Action - Introduction

Real power in action - firming and levelling with clod busting or slicing, cultivating or combinations of both, on top of full width rolling action.

With this choice of combinations and working widths from 4.5m to 12.2m, HE-VA Cambridge Rolls can meet the demands for improved efficiency regardless of farm size or soil conditions.

As the HE-VA wing sections are suspended from the central pivot the Cambridge Rolls can follow the most difficult contours. Deep hollows and undulations in the ground will often leave ordinary rollers hanging in mid air, achieving nothing. HE-VA always give FULL width rolling power

SAT System - Features

Cambridge Rolls without HE-VA automatic weight balancing tend to exert the highest ground pressure on the centre roller section. This roller section carries the weight of the drawbar, wheel frame and hydraulics as well as its own weight, far more than the two wing sections

With a basic roller set up there is no weight transfer and the uneven weight distribution is great as can be seen above.

Even with a basic sprung weight transfer system the hinges at the end of the centre section roller negate much of the transfer effect.

The HE-VA SAT system is fully spring loaded and has the outside roll section attached with centre pivot hinges, maximising the weight transfer to give even weight distribution across the full width of the Cambridge Rolls.

Axles - Features

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

Support Bearing - Features

The Cambridge Rolls axle on the wing sections of the 8.2, 9.5 and 10.2m Tip rollers have a centre bearing as an additional support.

3 & 5 Section Hinge - Features

	The Cambridge Rolls, Tip Roller and Swing Roller folding mechanism has a deep wing link pivot with Teflon coated steel bushing top and bottom to provide strength for cultivation as well as rolling.
3 Section Hinge		5 Section Hinge

Folds In Seconds - Features

Simple, safe folding - what else do you expect from a HE-VA

Folding Sequence 3 Section Tip Roller

	Cambridge Rolls in transport position		Swinging the side section into working position		Side section in working position
	Tip the side sections		Tip the rolls forward until the cylinder bottoms		The HE-VA rolls are ready to work

Folding Sequence 5 Section Swing Roller

	Rolls in transport position,wheels down		Swinging the wing section out		The wing section swung out
	Wheel ram cylinder engaged - wheels lifted forward and up		Outside wing cylinder extending		Rolls ready to work

Transport & Storage - Features

4.5m - 10.2m Tip Roller Cambridge Rolls - Model

Stone trays are fitted as standard and the Cambridge Rolls are all hydraulically operated from the tractor seat using two
double acting services.

There is a choice of five ring types along with two 'boards' which can be fitted in front of the Cambridge Rolls for the additional cultivation action.

Swing Roller Cambridge Rolls - Model

Although designed to cope easily with bigger farms and larger hp based systems, the 5 section Cambridge Rolls are still easy to handle - simple to fold and capable of devouring many acres of work in a day. The rings are also mounted on 60mm axles with 4 bolt bearings.

The two outside wing sections are supported by deep wing link folding mechanisms with an additional jump slot for increased flotation and for working field edges.

The clever design of all HE-VA Cambridge Rolls also ensures that tractor drawbar height variation (400-600mm) does not alter the performance of the Cambridge Rolls.

5 section Cambridge Rolls design features independent flotation on each section. The centre pivot suspension gives full width contour following. Even the centre section floats independently.

King Roller Cambridge Rolls - Model

The King Roller frame incorporates HE-VA's Special Active Transfer (SAT) weight transfer system. Comprising five sections, each with central pivoting, the King Roller adapts to the contours and consolidates the ground as effectively as any of the other Cambridge Rolls in the HE-VA range.

Available with 21" (510mm) or 24" (620mm) rings, the King Roller quickly folds down horizontally to a transport width of less than 3m.

The five centre pivots, two folding pivots and the pivoting drawbar eye allow individual sections to follow the contours. The
floating inner links, which join the outer wing sections to the main frame, allow all five sections to float completely independently, providing the best possible contour adaption.

4.5m - 10.2m Tip Roller Cambridge Rolls - Technical

12.2m Swing Roller Cambridge Rolls - Technical

12.3m - 15.3m King Roller Cambridge Rolls - Technical

Choose Your Ring Profile

HE-VA offer a helpful range of ring types.

All carefully designed to maximise the time proven qualities of traditional ring engineering but with some new developments created from customer demand and changing farming methods.

2 piece CAMBRIDGE breaker - (Standard)	2 piece CAMBRIDGE breaker - (Aggesstive)	2 piece CROSSKILL
1 piece CORRUGATED	1 piece CAMBRIDGE	1 piece PLAIN

Choose Your Cultivation Action

This is where your cost savings start - work as you roll ... level, firm and crush clods, all in one pass.
Cultivate? Prepare a seedbed? Or conserve moisture - flexibility is the key.

ShattaBoard	Slicing Board	Locking Device
The spring mounted Shattaboard crushes clods and has an excellent levelling effect. The angle of the boards can be adjusted hydraulically from the tractor seat to suit the land conditions on the day. Each spring is 10mm x 80mm and gives wide surface coverage with 150mm wide hardened points.	Now the successful Shattaboard has been improved further with the addition of 'knives' to the spring-loaded blade increasing the slicing and clod breaking effect on heavier ground. These blades can also be adjusted for angle of attack, hydraulically as with the Shattaboard (left).	The blades can work individually but the levelling effect is increased with the addition of the optional locking bars to convert the individual springs into a complete 'board' for full width action.

The boards can be quickly and easily retracted for rolling seedbeds. Whichever combination of cultivation tool and ring you choose the HE-VA system gives you the opportunity to produce the perfect tilth at less cost.

Shattaboards - Technical