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 
4 7.5 9.5 6 2.5 0.5 6 10 11 4 7.5 9.5 6 10 11 4 7.5 9.5 2 [4.5] 1.5 [1] 3.5 [1] Long Stroke 5 5.5 9 10 19.5 21.5 25 27 1 1.5 4 6 12 16 20 25 7 6 12 14 5 [-2.5] 5 5.5 9 10 7 6 12 14 17 19 22.5 24.5 9 9.5 13 14 11 10.5 16 18 1 0.5 6 8 9 9.5 13 14 11 10.5 16 18 9 9.5 13 14 11 10.5 16 18 4.5 [2] 10 [7.5] 12 [9.5] Anti-lateral Load Type 6 5.5 9 10 19.5 21.5 25 27 7 6.5 2.5 0.5 12 16 20 25 1 5
(Long stroke) Model C D Mounting bolt CQSB12-5D CQSB12-10D CQSB12-15D CQSB12-20D CQSB12-25D CQSB12-30D CQSB12-35DC CQSB12-40DC CQSB12-45DC CQSB12-50DC CQSB12-75DC CQSB12-100DC CQSB16-5D CQSB12-10D CQSB12-15D CQSB12-20D CQSB12-25D CQSB12-30D CQSB12-35DC CQSB12-40DC CQSB12-45DC CQSB12-50DC CQSB12-75DC CQSB12-100DC CQSB20-5D CQSB12-10D CQSB12-15D CQSB12-20D CQSB12-25D Model C D Mounting bolt
CQSWB125D 10D 15D 20D 25D 30D CQSWB165D 10D 15D 20D 25D 30D CQSWB205D 10D 15D 20D CQSWB2025D 30D 35D 40D 45D 50D CQSWB255D 10D 15D 20D 25D 30D 35D 40D 45D 50D 6.5 10 6.5 7 10 Note) Appropriate plain washer must be used for through-hole mounting.
Rod side mounting/Without auto switch Head side mounting/Without auto switch C D Mounting bolt Model C D Mounting bolt Model CQSB12-5D -10D -15D -20D -25D -30D CQSB16-5D -10D -15D -20D -25D -30D CQSB20-5D -10D -15D -20D -25D -30D -35D -40D -45D -50D CQSB25-5D -10D -15D -20D -25D -30D -35D -40D -45D -50D CQSB12-5D -10D -15D -20D -25D -30D CQSB16-5D -10D -15D -20D -25D -30D CQSB20-5D -10D -