Hydraulic Advanced, Long

Power Workholding

Product Information

KOSMEK LD Hydraulic Work Supports are 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. 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 approach is soft, limited to plunger spring force only. A sequencing spring ensures reliable operation in a fixed sequence: plunger extends, contacts the workpiece, then the collet locks, all through a single hydraulic circuit.

An elastic spacer keeps the plunger pressed downward when locked, preventing tilting and eliminating clearance at the workpiece contact point. An exclusive scraper prevents accumulation of cutting chips and dust around the plunger, and a built-in knockout function releases adherence after extended machine stops, improving environmental durability in demanding shop conditions. Ideal for supporting thin-walled sections during milling, backing press-fit operations, accommodating workpieces with varying heights, and reducing radial chatter in lathe applications.

LD Hydraulic Work Supports are available in six threaded-body sizes from M16x1.0 to M45x1.5, with support forces from 1 to 10 kN at 70 Bar maximum hydraulic pressure. Effective stroke ranges from 4.7 to 9.5 mm. Low spring force (L) and high spring force (H) plunger options are available. Additional sizes and options are available. Made in Japan.

Technical Information

Documents

Hydraulic Advanced, Long

Announcement of Design Number Change for Work Support

Function Overview

Accessories