Available in five bore sizes (40mm to 100mm) a pneumatic locking cylinder uses an integral, compact lock unit that is unaffected by the quality of the supply air.
the world's largest manufacturer of pneumatic automation products offers many styles of locking cylinders, including the CNA series locking cylinder. This series is available in five bore sizes (40mm to 100mm) and uses an integral, compact lock unit that is unaffected by the quality of the supply air. Also, a manual override lock release is available as a standard feature.

Typical applications include intermediate stops, emergency stops, and drop prevention.

The lock unit design utilizes a tapered wedge and two rows of precision steel balls to evenly distribute the locking force to the cylinder piston rod.

By isolating the locking components from the supply air pressure, poor air quality (contaminants and moisture) will not affect the performance of the lock mechanism.

Also, a standard manual override allows the lock to be released in the absence of supply pressure.

The lock can be applied either during cylinder extension and retraction.

In addition to the tie-rod style CNA series, SMC also offers intermediate-stroke locking cylinders in compact, round body, guided, and rodless cylinder designs.

Cylinders with integrated end-lock mechanisms are also available.

SMC Corporation manufactures high quality actuators and valves, airline and air preparation equipment, high-purity products, vacuum components, instrumentation, and a host of fittings and accessories applicable to the pneumatic automation industry.

SMC has a total of 14 production facilities, 3 of which are in North America -Indiana, California, and Ontario, Canada.

SMC's global presence enables it to provide quality customer service in any part of the world.