SMC CQ2W Z Series Compact Cylinder. Double Acting , Double Rod, CQ2WA63 50DCMZ Center Punch Carbide Free Speed : 8 Welding Screen Sheet Free Speed : 8 Bore Type Round Bore Diameter 55 mm Outside Diameter 100 mm Overall Width 21 mm Closure Type Double Shielded Row Type & Fill Slot Single Row Non Fill Slot Snap Ring Included Without Snap Ring Internal Clearance CN Operating Temperature Range 40 to 250 ºF Cage Type Pressed Dynamic Load Capacity 10790 lbf Static Load Capacity 6550 lbf Precision Rating ISO Class 0 Seal Type None Finish Coating Uncoated Bearing Material High Carbon Chrome Steel Cage Material Steel Inner Ring Width 0 There is no protruding auto switch Specification — CQ2WA63 50DCMZ