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 
(mm) 12 16 20 25 5 to 30 32.2 25.2 6 6 25 M3 x 0.5 32 5 3.5 15.5 3.5 6.5 depth 3.5 10 5 to 30 33 26 8 8 29 M4 x 0.7 38 6 3.5 20 3.5 6.5 depth 3.5 10 10 5 to 50 35 26 7 10 36 M5 x 0.8 47 8 4.5 25.5 5.5 9 depth 7 9.5 10 5 to 50 39 29 12 12 40 M6 x 1.0 52 10 5 28 5.5 9 depth 7 11 10 Note 2) The external dimensions with rubber bumper are same as those of the standard, as shown above.
st 10 st 10 st 10 st 5 st 5 st 5st 5 st 5 st M4 x 0.7 6 6 9 10 12 5 60.5 27 54.5 13.5 24 50.5 22 44.5 8.5 19 4 7 14 5 10 M4 x 0.7 14 5 53 63 23.5 28.5 47 57 8.5 13.5 20.5 25.5 4 10 15 6.5 12 M6 x 1.0 20 8 61 71 24.5 29.5 52 62 9.5 14.5 23.5 28.5 5 12 18 8 16 M6 x 1.0 24 10 67.5 77.5 27.5 32.5 57.5 67.5 10 15 27.5 32.5 5 14 20 10 20 Double clevis bracket material: Carbon steel For details
5st 5 st 5 st 10 st 10 st 10 st 10 st 10 st M4 x 0.7 6 6 9 10 12 5 50.5 22 44.5 4 7 14 5 10 8.5 19 60.5 27 54.5 13.5 24 M4 x 0.7 14 5 53 23.5 47 4 10 15 6.5 12 8.5 20.5 63 28.5 57 13.5 25.5 M6 x 1.0 20 8 61 24.5 52 5 12 18 8 16 9.5 23.5 71 29.5 62 14.5 28.5 M6 x 1.0 24 10 67.5 27.5 57.5 5 14 20 10 20 10 27.5 77.5 32.5 67.5 15 32.5 Double clevis bracket material: Carbon steel For details
CQSB20-30D CQSB20-35D CQSB20-40D CQSB20-45D CQSB20-50D CQSB20-75DC CQSB20-100DC CQSB20-125DC CQSB20-150DC CQSB20-175DC CQSB20-200DC CQSB25-5D CQSB20-10D CQSB20-15D CQSB20-20D CQSB20-25D CQSB20-30D CQSB20-35D CQSB20-40D CQSB20-45D CQSB20-50D CQSB20-75DC CQSB20-100DC CQSB20-125DC CQSB20-150DC CQSB20-175DC CQSB20-200DC CQSB20-250DC CQSB20-300DC 50 55 60 65 70 25 30 35 40 45 50 M5 x 50l x 55l