SMC CQ2W Z Series Compact Cylinder. Double Acting , Double Rod, CQ2WB40 30DCZ HSS Coated Drill (Gold P) Includes high visibility Includes high visibility Specification item model symbol Specification information built in magnet No built in magnet installation support B Through hole (standard) form pneumatic type tube inner diameter 40 tube inner diameter 40mm Types of port screws Rc M screw cylinder stroke 40 cylinder stroke 40mm body options M rod end male thread Auto switch mounting groove Z ø12 ø25 2 sides ø32 ø100 4 sides auto switch Without auto switch Auto switch additional symbol 2 with or without Custom made specifications standard