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.
-50D D Non-rotating rod side mounting 10 10 CQSKWB25-5D -10D -15D -20D -25D -30D -35D -40D -45D -50D C' Mounting bolt D' 7 7 Note) When mounting a cylinder with through-hole, be sure to use the attached plain washer.
12 16 5, 10, 15, 20 25, 30 7-4-20 20 25 5, 10, 15, 20 25, 30, 35, 40 45, 50 Series CQS 12, 16 20, 25 12 16 20 25 5, 10 7-4-12 Solid state switch D-M9N/M9NV D-M9P/M9PV D-M9B/M9BV D-F9NW/F9NWV D-F9PW/F9PWV D-F9BW/F9BWV D-F9BAL Series CQSK 12 16 5, 10, 15, 20 25, 30 7-4-28 20 25 5, 10, 15, 20 25, 30, 35, 40 45, 50 Series CQSS 12 16 5, 10, 15, 20 25, 30 (1) 7-4-36 20 25 5, 10, 15, 20 25, 30,
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.