Please contact SMC for details. 7-4-29 30 Series CQSK Calculation: (Example) CQSKF20-5DM Cylinder weight: CQSKB20-5D89 g Option weight: Rod end male thread10 g : Rod side flange style142 g 241 g Weight/Without Auto Switch (g) Cylinder stroke (mm) Bore size (mm) 5 10 15 20 25 30 35 40 45 50 12 39 46 53 60 67 74 16 52 61 69 78 86 95 20 89 102 116 129 143 156 170 183 197 211 25 124 141 157