The SD injector has been developed specifically for the optimal injection of slurry using disc harrow techniques. So it is not just a disc harrow for soil tillage, which has been fitted with slurry equipment. Injection of slurry into stubble with much plant material on the surface, such as from maize or rape, challenges the construction and technique of the injector. SD has been made to optimize the construction and functionality of a slurry injector for this type of work. The SD injector is available in 5, 6 and 7 m widths.
The SD injector also has the advantage that the slurry is placed directly into the soil and is not flung around with the other material. The injector can therefore work with relatively dry material and stays clean and dry. This minimizes problems with moisture penetrating into bearings and linkages, increasing the lifespan of the machinery.