2020 Kuhn North America 8320 Tandem 34W

2020 Kuhn North America 8320 Tandem 34W

Designed to provide primary tillage operation where maximum soil penetration and residue mixing is required. Working widths range from 19’10” to 37’3”.

The KUHN Krause Class III 8320 tandem disc harrows provide primary tillage operation utilizing greater gang angles and a weight increase over Class II all purpose disc harrows. 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.

Residue Razor™ disc blades, aggressive gang angles and a significant weight increase over all-purpose tandem disc harrows means the 8320 delivers better residue cutting and mixing. With a wide or narrow spacing, producers can configure the 8320 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

The 8320 tandem disc harrow offers a choice between 24” or 26” diameter, ¼” thick Residue Razor™ disc blades spaced 9” or 10” apart on the front gang and 10” apart on the rear gang. Heavy-duty 7” diameter ductile iron spools multiply the strength of the gang. The 22-degree gang angle on the front and 19-degree gang angle on the rear allow for optimum residue cutting and mixing in primary tillage conditions.

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.

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.

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.

Rock-flex bearing arms provide protection from rocky or hard soil conditions and feature PEER® TILLXTREME™ maintenance-free bearings. The bearing arm 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.