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 
.: CQSB25-47D-XB10 Makes 47 stroke tube. B dimension is 69.5 mm. Part no.: CQSB25-47D CQSB25-50D with 3 mm width spacer inside. B dimension is 72.5 mm.
Copper, fluorine and silicone-free + Low particulate generation Action 21 22 Relief type Vacuum suction type D Double acting Rod end thread Nil M Standard (Rod end female thread) Rod end male thread Model Model Bore size (mm) Port size Relief port Action Standard stroke (mm) 10-/21-CQSB12 10-/21-CQSB16 10-/21-CQSB20 10-/21-CQSB25 11-/22-CQSB12 11-/22-CQSB16 11-/22-CQSB20 11-/22-CQSB25 12
. : CQSB25-47D -XB10 Makes 47stroke tube. B dimension is 69.5mm. Model no. : CQSB25-47D CQSB25-50D with 3mm width spacer inside. B dimension is 72.5mm. Option Option Availability Rod end thread Available for all standard models of double acting single rod.