SMC CY1L Series Magnet Type Rodless Cylinder , Slider Type, Ball Bush Bearing, CY1L20H 450B Dead Blow Hammer Specification item model symbol Specification Specification item model symbol Specification information With auto switch D With auto switch Mounting support type B Basic type (with bosses on both sides) tube inner diameter 40 tube inner diameter 40mm cylinder stroke 150 Cylinder stroke 150mm Cylinder additional symbol Rubber cushion Specification item model symbol Specification information With auto switch D With auto switch Mounting support type B Basic type (with bosses on both sides) tube inner diameter 25 tube inner diameter 25mm cylinder stroke 125 Cylinder stroke 125mm Cylinder additional symbol A Air cushion