MCK series welding clamping Pneumatic cylinder

MCK series welding clamping Pneumatic cylinder is a direct-push welding clamping cylinder—distinct from the swing-crank style of the JCK/JSK series—that achieves clamping by using the piston rod to linearly push a Y-shaped connector. Designed to withstand weld spatter and harsh welding environments, it is widely used in automotive welding jigs and fixtures.

Operating Principle: A double-acting cylinder drives an internal crank-slider mechanism to actuate the clamping arm. Once clamped, the mechanism locks via a mechanical dead-point, maintaining clamping force even if the air supply is cut off. The opening angle can be adjusted on-site from 5° to 135° using an internal adjustment nut—without replacing parts—and the overall length of the unit remains unchanged regardless of the angle.

Suitable applications: Automotive welding jigs and fixtures, sheet metal welding tooling, clamps requiring frequent adjustment of opening angles, and mixed-model production lines; ideal for new design projects where swing angles require repeated modification during the debugging phase.

Excellent resistance to dust and welding spatter: The front cover features a stainless steel dust scraper ring that protects the cylinder from damage caused by dust and flying welding spatter, offering greater reliability than a dust boot.

Multiple opening sizes: Opening sizes Type A and Type B are available.

A variety of piston rod end fittings are available: Y-type with M6 mounting hole, and YW-type without M6 mounting hole.

Features built-in cushioning adjustment and speed-limiting flow control devices.

Theoretical clamping force of the cylinder

Technical Specifications

Available thread types for the connection include PT, G, and NPT.

Standard Stroke

MCK series welding clamping Pneumatic cylinder Finished Product Order Code

To learn more about the internal structure, material specifications, external dimensions, and accessories,

click “Contact Us.”