QCK series Swing clamp cylinder

QCK series Swing clamp cylinder is a compact 90° rotary-downward clamping pneumatic cylinder (also known as a rotary pneumatic cylinder) featuring a low-profile body and designed primarily for welding applications. Its operating sequence involves first rotating 90° and then clamping via a vertical downward stroke; the reset sequence involves first lifting and then rotating back to the open position.

Operating Principle: The piston rod features an internal helical guide groove, enabling a two-stage compound motion:
1. Rotation Stage: The piston rod rotates 90° while simultaneously rising or descending, swinging the clamp arm clear of the area above the workpiece.
2. Clamping Stage: The piston rod moves vertically downward to clamp the workpiece.

There is no mechanical self-locking mechanism; the clamp will release upon loss of air pressure, so continuous air supply is required to maintain clamping force. Clamping force is generated solely during the vertical clamping stroke; the rotation stage cannot be used to clamp the workpiece.

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.

Integrated sensor mounting slots (mounting slots for magnetic switches)

A variety of piston rod end styles are available: tapered type (with rocker arm) and flat type (without rocker arm).

Suitable for welding environments: The piston rod features a QPQ finish, offering excellent resistance to weld spatter adhesion.

High versatility: The body’s mounting dimensions and installation method are identical to those of the ACQ cylinder series, allowing for the use of ACQ mounting accessories.

Cylinder Theoretical Clamping Force Chart

Technical Specification

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

QCK series Swing clamp cylinder Finished Product Order Code

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

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