SMC CRBU2 Series Free Installation Rotary Actuator Vane TypeCRB2BS15 270SEZ Top Cutter Performance unchanged after 40 Performance unchanged after 40 Specification item model symbol Specification information With auto switch D With auto switch form pneumatic type Mounting support type A Bottom installation type tube inner diameter 20 tube inner diameter 20mm cylinder stroke 310 dual stroke mark No dual stroke mark cylinder stroke 2 Cylinder stroke 2 None cushion A air cushion Rod end screw shape rod end male thread rod end bracket no metal fittings auto switch Without auto switch Auto switch additional symbol 2 with or without Custom made specifications standard