October 23, 2014
Great Plains has announced the introduction of a new cultivating disc blade option to further increase specification flexibility across a wide range of its trailed and mounted tillage equipment.
Designed mainly, though not exclusively, for work in maize residue, the new SoilRazor disc blade is offered as an alternative to the standard notched disc on the Simba DTX, X-Press, SLD and SL model ranges. It features a saw-tooth design which allows the blade to capture and size the toughest residues. All cultivating disc edges wear away over time, but the cutting ability and therefore the lifetime of the SoilRazor disc is greatly extended thanks to its unique flute design. As the blade begins to wear the flutes actually shift, so that around its cutting edge the hills become the valleys and the valleys become the hills.
Able to capture and size residue at speeds of up to 13mph, the SoilRazor has the versatility to penetrate in tough soil conditions while still maintaining its integrity. The flute pattern of the disc grips the soil and ensures the gang rpm doesn’t decrease or stop in loose or wet soil conditions. This prevents soil “bulldozing” in front of the gang.
The transition area between the end of the flute and the central flat area is specifically designed to promote soil flow so that material does not build up. In certain conditions, this all but eliminates the need for scrapers. Additionally, the transition area between the flute ends and the central flat area of the blade encourages soil to move past the flutes instead of building up between them, which would decrease lateral soil movement critical for soil fracturing and residue coverage.
The SoilRazor has already proved to be highly effective, as Simon Revell, Great Plains Export Director, explained: “We put the discs through their paces last year and very late the year before in maize residue after combining. The discs did an impressive job of chopping, sizing and mixing.
“Whilst the discs are predominantly used for maize trash, they are equally good in wheat stubbles, particularly if the crop is lodged,” he added.