SMC CRB1 Series Rotary Actuator Vane Type, CDRB1BW80 270S S79L Stroke_171^185mm Specification item model symbol Specification Specification item model symbol Specification information built in magnet D built in magnet installation support B Through hole (standard) tube inner diameter 20 tube inner diameter 20mm Types of port screws Rc M screw cylinder stroke 30 cylinder stroke 30mm dual stroke mark No dual stroke mark cylinder stroke 2 Cylinder stroke 2 None body options M rod end male thread Auto switch mounting groove Z ø12 ø25 2 sides ø32 ø63 4 sides auto switch Without auto switch Auto switch additional symbol 2 with or without Custom made specifications standard 0 20 38 160 2 GENERAL HSSE2480210 21 R10