Allenair Logo – An Alkon Company


Allenair is your single source for dependable, high-quality hydraulic and pneumatic cylinders for industrial applications. When your reputation is on the line, cutting corners is out of the question. Allenair cylinders are built in the USA and adhere to the highest level of excellence and reliability. Every cylinder manufactured is durable and built to last, ultimately saving you time and money.

Product Lineup

Double Acting Cylinders

This is Allenair’s largest and most configurable design. Engineered and built to outlast the life of your equipment, the snap ring closure design allows for rebuilding to further extend the life of your cylinder. You can choose a Type A, C, or E cylinder to perfectly fit your application. Allenair’s large range of bore diameters, rod sizes, and mounting configurations combined with high-quality materials is a winning combination.

Small Bore Cylinders

These small bore cylinders come in ½”, ¾”, and 1-1/8” diameter bores up to 14” stroke. They come with brass tubes that are precision honed with a cross-hatch lubricant retaining pattern. The front and rear heads are precision machined and threaded. Seals can easily be replaced if necessary to prolong the life of the cylinder. These can be used for pneumatic and hydraulic pressures up to 150 psi.

Model SSSM (All Stainless Steel Small Bore Cylinders)
Available in 1-1/8″ (28mm) bore only.
Strokes available: 1/8″ to 14″, 4mm to 355mm

Threaded Construction Stainless Steel Cylinders

These threaded construction, all stainless steel cylinders are perfect for the food processing industry and any other wash-down required applications. This crevice-free design ensures that all catch points for contamination have been eliminated. They will stand up to repetitive power and chemical wash downs. These can also be rebuilt to help extend the life of the cylinder.

Position Feedback Cylinders
Available for pneumatic (TDP) and hydraulic (TDH) service. The TD Option gives you an internal Linear Resistive Transducer (LRT) for extremely accurate piston position sensing. It is ideal for applications where magnetic Reed and Hall effect switches are not acceptable. The TD Option is the perfect solution for applications where variations in cylinder stroke and speed are required or where an application calls for real time position monitoring. Offered in bore sizes from 1-1/8″ to 4″ and strokes up to 18″. Cylinder comes standard with an IP 67 rated 8mm 3 pin male cable connector.

Single And Double Acting Valve-In-Head® Cylinders

Valve-in-Head® cylinders are unique, compact, self-contained units that combine both cylinder and valve into one complete module. This provides the highest level of performance with the quickest valve and cylinder response time and best-in-class flow. Eliminate possible failure points by reducing the number of fittings and tube connections. These cylinders will save on space, time, and cost. The robust design will keep your machine running, maximizing uptime and profits.

Cyl-Check® Cylinders

When you want the precision control of a hydraulic cylinder, but don’t want to mess with the pump, accumulator, and hoses, consider Cyl-Check® cylinders. These cylinders are unique in combining the flexibility of a pneumatic cylinder with the control of a hydraulic cylinder in one parallel or tandem mount package. These self-contained, maintenance-free hydraulic cylinders provide a full range of flow control, anywhere from 1 in/min up to 600 in/min. This, combined with a standard pneumatic cylinder, provides a plug and play unit that only requires standard pneumatic controls and connections. Add a Stop Check to gain the ability to stop the cylinder dead at any or multiple points along the travel, great as an E-stop. Skip Check allows for rapid movement in areas where precision control isn’t needed, while still providing the dialed-in hydraulic control where it matters most.

Air Clamps

Allenair Air Clamps
Double and Single Acting
1-1/8″ & 2″ Bore Sizes

Allenair Air Clamps are rugged, economical units with versatile mounting for clamping, pressing, staking, stamping, bending and positioning. Available in Double and Single Acting.

For more information about these products…
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