Four types of ring are now available
- 550mm - the closer 150mm spacing results in improved clod cutting and a finer soil finish, ideal for smaller cultivations. More details here.
- 550mm DD Lite - a lighter format of the DD ring, but retaining the levelling and consolidation properties of the larger rings - for light land consolidation and for use with mounted machinery. More details here.
- 600mm - the standard ring for double presses etc, in which arrangement they contact the vast majority of the soil surface, so providing optimum consolidation, levelling and weather-proofing. More details here.
- 700mm - widely used on single presses or behind sub-soilers etc. Their large rolling diameter minimises power requirement, making them ideal as the final pressing element of a wide range of cultivators, sub soilers etc. More details here.
Setting the standard for press efficiency
Simba's DD Press Rings set the standard for pressing efficiency and remain unique both in their design (which is patented) and their performance.
The rings have a self-sharpening cutting edge mounted on a broad, carefully angled shoulder. This enables them to cut clods effectively, crushing the parted halves so they disintegrate, while also contacting over 80% of the soil surface so they consolidate and level the seedbed, leaving a ridged, weather-proof surface.
As a result they do not lose their efficiency as cast rings do. In addition, the DD has no spokes so is not so prone to blockages caused by stones kicking up and getting stuck between spokes and pillars etc. Its broad shoulder enables it to run on top of lighter soils and consolidate them, rather than sinking into them as cast rings
The patented axle tensioning system allows:-
- sharp cutting edge to be maintained over the life of DD ring
- maintains ‘drive’ between axle components therefore avoiding blockage and stoppage or the roller.
Sharp cutting edge ensures optimum clod cutting and improved cultivation action.
DD Rings are manufactured from the highest quality Boron steel. This quality of material and the tensioning system avoids the need for welding the rings. The specification of the material also ensures optimum wear and high durability against damage from stone/rocks.
The transition of the DD ring from the cutting edge to the firming part of the ring results in:-
- cuts in moist soil are propagated deeply avoiding the ‘smearing’
of the soil surface. - no compaction of the soil surface
- optimum soil consolidation at the surface and at depth.
Relationship between ring spacing, diameter and width results in optimum soil consolidation and minimises soil blockage between the rings. It also ensures the soil between the rings is not over consolidated as this is critical for a weatherproof surface which maintains soil moisture (in dry conditions) and allows good drainage (in wet conditions) avoiding soil erosion.
CLICK HERE to see an animation of the DD Ring's Clod breaking ability.
