Factory-aligned precision grinders.

The VSS Series 2 Single Stroke machines are factory aligned for precision centering of the spindles and tooling plate to produce better bore geometries. Alignment accuracy exceeds DIN 8635 requirements for vertical honing machines. The machines incorporate up to six spindles to progressively size and finish part bores with tools of preset diameter and grit size. The machines are designed for precision sizing of bores 0.149" to 2" diameter in stamped parts, hydraulic valve bodies, gears and sprockets, parking pawls, rocker arms, turbocharger housings, and similar parts. Appropriate materials include cast iron, powdered metals, ceramic, glass graphite, and other free-cutting materials. The machines use a belt-drive spindle cartridge with a 28.5" stroke and 2" to 250 ipm stroking speed for flexibility with a variety of parts and tooling combinations. The servo-powered stroke system provides crash protection and is hand-wheel-controlled for quick setting of vertical position. The menu-driven PLC Control with human-machine interface lets the column feed and spindle speed be varied throughout the cycle. The VSS Series 2 is available in three models: the 84--eight-station, four-spindle, the 86--eight-station, six-spindle, and the 64--six-station, four-spindle, to meet various mid- to high-production needs. Sunnen Products Co., Booth B-7200

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