KOSMEK Air Advanced, Long

Power Workholding

Product Information

KOSMEK WNC Pneumatic Work Supports are high-power, single-acting, threaded-body work supports that eliminate chatter and prevent workpiece deformation during machining by providing firm support from the opposite side of the cutting load. Pneumatic operation delivers support force comparable to hydraulic work supports, eliminating the need for a hydraulic power pack and associated piping. A collet gripping mechanism generates powerful support force via a wedge effect, while a larger gap between collet and plunger prevents sticking and ensures smooth action. The load applied to the workpiece during contact is soft, limited to plunger spring force only.

In the air advance configuration, the plunger is retracted when air pressure is off. When air pressure is supplied, the plunger rises, contacts the workpiece, and stops at the contact point. A spool-type air passage design ensures reliable sequencing: plunger advance, workpiece contact, and collet lock are all carried out through a single air circuit. An exclusive scraper prevents accumulation of cutting chips and dust, and a built-in knockout mechanism releases adherence after extended machine stops. The compact threaded body allows close-proximity mounting for dense fixture layouts.

WNC Pneumatic Work Supports are available in four stocked body sizes from M26x1.5 to M45x1.5, with support forces from 1.0 to 4.8 kN at 7 Bar maximum operating pressure. Effective stroke ranges from 6.0 to 7.5 mm. Low spring force (L) plunger option is standard. Additional sizes, spring force options, and variants (including spring advance and M configurations) are available. Made in Japan.

Documents

Hydraulic Work Supports

Hydraulic Linear Cylinder / Compact Cylinder

Technical Information

Accessories

Function Overview