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 
9.5 0.5 11 9.5 26.5 ( ): Denotes the values of D-A93.
Rod side mounting/With auto switch Head side mounting/With auto switch C D Mounting bolt Model C D Mounting bolt Model CDQSB12-5D -10D -15D -20D -25D -30D CDQSB16-5D -10D -15D -20D -25D -30D CDQSB20-5D -10D -15D -20D -25D -30D -35D -40D -45D -50D CDQSB25-5D -10D -15D -20D -25D -30D -35D -40D -45D -50D CDQSB12-5D -10D -15D -20D -25D -30D CDQSB16-5D -10D -15D -20D -25D -30D CDQSB20-5D -10D
Straight type V Elbow type Fitting size One-touch fittings for regulator Straight V 2.5 3 6.5 Elbow W 6 6.5 6 Elbow X 11 11 11.5 Elbow Y 35.5 36 38.5 4, 5/32 6 1/4 8, 5/16 W X Y Note) The O-ring is attached.