The Pancake cylinder is a particular type of pneumatic actuator designed to satisfy the need for short stroke, low profile, compact air cylinders that fit in tight spaces. The original Pancake cylinder was invented in 1958 by Al Schmidt, and today it remains a mainstay in the compact air-cylinder market.

This round-body cylinder has a smooth outside diameter for easy cleaning. Although it was initially used for strokes less than 1-in., units with strokes to 4 in. are now available. They come in eight bores sizes from 0.5 to 4 in. Pressure ratings are to 250 psig pneumatic and 500 psig hydraulic service.

Cylinder bodies are machined from high-quality aluminum bar stock and clear anodized for superior appearance and corrosion resistance. Hard chrome plated stainless-steel piston rods add longevity to the cylinder. A non-metallic, Duralon rod bushing is standard, and cylinders are pre-lubed with Magnalube-G grease. Users can also select from many standard options, such as a magnetic piston option for cylinder position sensing, and custom designs are available on request.

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