2020 Kuhn North America 8220 Tandem 31W

2020 Kuhn North America 8220 Tandem 31W

Designed for all-purpose operation in a variety of soil and residue conditions. Working widths range from 18’10” to 44’3”.

The KUHN Krause Class II, all-purpose 8220 tandem disc harrows provide all-purpose operation in a variety of soil and residue conditions. Heavier main and wing frame components combined with improved weld joint construction increase strength and reliability. New spring adjustable scraper assemblies provide aggressive and positive cleaning action in a variety of field conditions.

With a variety of Residue Razor™ disc blades, and wide or narrow spacing, producers can configure the 8220 tandem disc harrow to match their residue and soil conditions for optimum performance. Choose a 24/7® leveling system for a reliable seedbed finish.

Gang Design

With a choice of 22’’ or 24’’ diameter, 6 gauge or ¼’’ thick Residue Razor™ disc blades on 8’’ or 9-1/8’’ spacing, the 8220 disc harrow can be configured for optimum performance in a variety of residue and soil conditions. The 20-degree front and 19-degree rear gang angle provide consistent residue cutting and mixing. Heavy-duty 6’’ ductile iron spools, rock-flex bearing arms and heavy-duty PEER® TILLXTREME™ maintenance-free bearings offer the strength and endurance that sets the 8220 above the competitors.

All KUHN Krause tandem disc harrows are available with Residue Razor disc blades made from Ingersoll's PURE™ steel optimizing strength to withstand stress, fractures, and to provide flexibility in rock conditions. Residue Razor discs have an exceptionally sharp edge, five times sharper than conventional blades. Rollable Disc Blades are also available which allow blades to be re-sharpened for extended residue cutting and soil penetration performance.

KUHN Krause heavy-cast spools multiply the strength of the disc gang. Spools are line-bored for an exact fit on the tie rod and precision faced to perfectly match the blade surface. A larger bell on the concave end and a smaller bell on the convex end provide an overlap fit against the blades, supporting the blade more positively without creating a stress line.

Rock-flex bearing arms provide protection from rocky or hard soil conditions. Rock-flex bearing arms feature PEER® TILLXTREME™ maintenance-free bearings. The scraper has adjustability to clean the concave side of each disc blade located at the Rock-Flex bearing arms limiting soil and residue buildup in the bearing hanger area.

The 5-inch scraper is easily adjusted by simply loosening a single bolt, adjusting for scraper gap if needed and locking in place by tightening the bolt. The scraper spring provides the tension to move the scraper to the specified location against the face of the disc blade.