SMC's CQS clean room, compact air cylinder has 4 bore sizes. Standard strokes range from 5 to 50mm. 10/11-C(D)QS series, available for clean environment, prevents particle generation in a clean room. 21/22-C(D)QS series offers the same structure as the clean series, and are for the environment in which the use of copper, fluorine and silicon are restricted. The 
Mounting bolt Mounting bolt D 30 35 40 45 50 55 30 35 40 45 50 55 35 40 45 50 Model C Model C D 55 60 65 70 75 80 35 40 45 50 55 60 65 70 75 80 CQSWB12-5D -10D -15D -20D -25D -30D CQSWB16-5D -10D -15D -20D -25D -30D CQSWB20-5D -10D -15D -20D CQSWB20-25D -30D -35D -40D -45D -50D CQSWB25-5D -10D -15D -20D -25D -30D -35D -40D -45D -50D M3 x 30l x 35l x 40l x 45l x 50l x 55l M3 x 30l x 35l x
CS2 Series CS2 125, 140 JISB4636 Dodecagon 22 Class2, M14 x 1.5 160 JISB4636 Dodecagon 24 Class2, M16 x 1.5 a.