Non-lube 3MA and 4MA NFPA aluminum air cylinders come in several models. The 3MA comes in 1- to 5- in. bores with standard rod sizes and offers 250 psi at standard temperatures and 1100 psi hydraulic service (3ML) for 1-in. bore. The 4MA cylinder with removable gland comes in 1- to 8-in. bores with standard and oversized rods. It delivers 250 psi and 400 psi hydraulic service (4ML) at standard, high, and low temperatures. The 3MAJ/4MAJ rod-lock cylinders come in 1- to 8-in. bores with standard and oversize rods.
Parker Hannifin Corp., Pneumatic Div., (847) 699-5301, www.parker.com