Agricultural machinery manufacturer, KUHN, has launched the new DT subsoiler range to improve efficiency, support optimized soil management, and offer a range of agronomic benefits. The machine provides deep soil restructuring and prepare the surface at the same time. The DT KUHN subsoiler features a robust design which is engineered to perform reliably under a wide range of field conditions.
The DT range is described as suitable for pseudo tillage work and as a robust, effective machine for deep soil cultivation, manufactured to create optimal conditions for crop development. The DT subsoiler features curved tines arranged in two rows, designed to promote deep soil restructuring and thorough mixing.
DT Subsoiler Agronomic Advantages
The new range of DT loosening subsoilers from KUHN offers solution for working soil at depths of up to 60 cm, helping to control compaction which is a key factor for the success of future crops. By effectively breaking up compacted layers, the DT subsoiler helps restore soil porosity, improves aeration, enhance water infiltration, and supports root development for future crops.
By effectively removing compacted layers, DT allows the soil to regain its porosity, improve aeration, encourage water infiltration and support the root development of future crops. Surface stirring with the DT subsoiler aids in burying crop residues and accelerates their breakdown into organic matter. Incorporating chemical and organic amendments can enhance soil productivity, supporting optimal root development and contributing to improved crop yields.
DT Subsoilers for Different Soils
The DT subsoiler models have been developed to suite a wide variety of farm types. It is available in two models, L and XL, each designed to accommodate different farming conditions. The DT L subsoiler is intended for light soils and tractors up to 230 hp, featuring a three meter width and a working depth of up to 50 cm.
The Non Stop Hydraulic (NSH) safety system allows the DT subsoiler to automatically bypass obstacles, protecting the tines while maintaining consistent soil penetration and performance. The DT L features generous underframe clearances (780 mm in T and 870 mm in NSH) and wide spacing between the two rows of tines (800 mm in T and 850 mm in NSH), allowing blockage free operation even in fields with crop residues.
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The DT XL subsoil loosener for heavy soils is available in fixed versions 3 and 4m wide, and are suitable for high powered tractors (up to 400hp). They can descend to depths of up to 60cm, providing high passage capacity powered by underframe clearances (920mm in T and 1000mm in NSH) and the distances between the two rows of tines (870mm in T and 1000mm in NSH).The DT subsoiler’s central component is 350 mm wide finned leg, available with T or NSH safety systems. It is equipped with 0mm quick fit tip, which is also available in carbide version. The two rows of tines support deep soil cracking and efficient soil mixing and surface residues.
With the traction bolt (T) mechanical safety option, the peak power of DT subsoiler reaches 3550kg for the L tine and 4370kg for the XL tine. Equipped with Non Stop Hydraulic (NSH) safety, trigger pressure can be regulated between 165 and 190 bar, providing maximum tip power of 1,190 kg for the L tine and 1670kg for the XL tine.
Roller Design and Soil Management
The DT subsoiler achieves work efficiency by combining deep soil cracking with surface preparation in a single pass. Mechanically or hydraulically folding side deflectors help maintain consistent soil flow, while working depth can be regulated through infinitely variable hydraulic adjustment of the roller. After the tines pass, the double roller crumbles and levels the surface soil, with integrated roller bearings ensuring close to surface levelling while minimizing the risk of vegetation wrapping around the bearings.
The roller’s crumbling action encourages the next crop to take root, while its high reconsolidation helps to retain moisture in the soil. Spindle adjustment of the front roller’s horizontally with the rear roller means that pressure can be increased on one of the two rollers, and working in stony conditions is made easier by the possibility of increasing the distance between the two rollers.
The roller crumbling action supports the establishment of the next crop by enhancing soil structure, while its high reconsolidation helps retain moisture in the soil. Spindle adjustments of the front and rear rollers allows pressure to be increased on either of the rollers, and adjusting the spacing between the rollers makes it easier to operate in stony conditions.