200 Employees 200,000 Sq. Ft. of Manufacturing Established in 1947, Allenair is one of the oldest, privately-held Fluid Power Manufacturers in the U.S.A. Primary product lines are Cylinders both Pneumatic and low-pressure Hydraulic, Rotary Index-Tables, including availability of unequal index option and a wide range of Valves. Standard Cylinder lines include Valve-In-Head Cylinders (eliminates necessity for separate valve and additional plumbing), Cyl-Checks (Cylinder/hydrochecks which achieve hydraulic control of a pneumatic cylinders without the cost of a hydraulic system), Linear Pumps/Dispensers (pneumatically or hydraulically driven, no electricity needed ). Specialty Cylinder lines include 100% All Stainless Steel Cylinders and Mounts in either 303 or 316 grades. 100% Stainless Steel is also available for the Linear Pump/Dispensers