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Machinery department

Deep ripper

The Unverferth Zone Builder 120 shatters hardpan 26 in. deep while creating minimal surface soil disturbance. Spring-cushioned reset shanks give 20 in. of vertical tip travel with a constant 5,040 lbs. of point load throughout the trip cycle. A heavy-duty, 6-in. coil spring with a 4- × 6-in. pull arm keeps the shank stable, even in extremely tight soils.

Zone Builder models are available in two- to 12-shank configurations. The new six-shank 120 model sells for $10,075. A two-shank model is $4,020. Contact Unverferth Mfg. Co. Inc., Box 357, Kalida, OH 45853, 800/322-6301, visit or 60-ft. planter toolbar
A new planter toolbar that stacks is now available from Orthman Manufacturing. The folding 1900 series stacking planter bar is 60 ft. wide and will handle 24-row, 30-in. or 18-row, 38/40-in. planter configurations that allow a grower to plant 320 acres/day, according to Orthman. The outer wings hydraulically fold forward for transport. Maximum maneuverability is achieved by “semi-mounting” the toolbar to the tractor. The new toolbar uses Orthman's Star Command GPS implement guidance system in place of row markers.

The stand-alone toolbar without row units retails for $38,000. Contact Orthman Mfg., Dept. FIN, Box B, Lexington, NE 68850, 308/324-7555, visit or

Case IH, New Holland offer autoguidance

Case IH and New Holland now offer fully integrated, GPS autoguidance steering systems from Trimble for their tractors. Tractor operators will not need to steer on straight rows in the open field with the new system, except at row ends. The system will operate within a 1- to 4-in. accuracy, depending on the source of the differential correction signal.

The steering systems initially will be available for Case IH MX series Magnum and STX series Steiger tractors, including Quadtrac models, and New Holland brand TG and TJ tractors. In addition, New Holland and Case IH dealers will be provided with aftermarket kits so growers may have tractors retrofitted with the systems.

The systems are based on Trimble's AgGPS Autopilot technology and customized for New Holland and Case IH brands.

Contact Trimble Navigation Ltd., Dept. FIN, Box 3642, Sunnyvale, CA 94088, 408/481-8000, visit or

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