Symbol Rubber bumper Air cushion Holds the cylinder’s home position even if the air supply is cut off. When air is discharged at the stroke end position, the lock engages to maintain the rod in that position. Non-locking type and locking type are standardized for manual release. Auto switch is mountable. * Available only for locking at head end * 0.05 MPa for other part than the lock unit Bore size (mm) 20 25 32 40 Type Pneumatic Action Double acting, Single rod Fluid Air Proof pressure 1.5 MPa Maximum operating pressure 1.0 MPa Minimum operating pressure 0.15 MPa * Ambient and fluid temperature Without auto switch: .10°C to 70°C (No freezing) With auto switch: .10°C to 60°C Cushion Rubber bumper, Air cushion Lubrication Not required (Non-lube) Stroke length tolerance +1.4 0 mm Piston speed Rubber bumper 50 to 750 mm/s Air cushion 50 to 1000 mm/s Mounting Basic, Axial foot, Rod flange, Head flange, Single clevis, Double clevis, Rod trunnion, Head trunnion Symbol Specifications -XAl Change of rod end shape -XB6 Heat resistant cylinder (.10 to 150°C) -XB9 Low speed cylinder (10 to 50 mm/s) -XC3 Special port location -XC4 * With heavy duty scraper -XC5 Heat resistant cylinder (.10 to 110°C) -XC6 Made of stainless steel -XC8 * Adjustable stroke cylinder/Adjustable extension type -XC13 Auto switch rail mounting -XC22 Fluororubber seal -XC25 No fixed throttle of connection port -XC27 Double clevis and double knuckle pins made of stainless steel -XC29 Double knuckle joint with spring pin -XC35 With coil scraper -XC52 Mounting nut with set screw Specifications Lock position Head end, Rod end, Double end Holding force (Max.) (N) o20 o25 o32 o40 215 330 550 860 Backlash 1 mm or less Manual release Non-locking type, Locking type Lock Specifications Bore size (mm) 20 25 32 40 Rubber bumper Allowable kinetic energy (J) 0.27 0.4 0.65 1.2 Air cushion Effective cushion length (mm) 11.0 11.0 11.0 11.8 Cushion sectional area (cm2) 2.09 3.30 5.86 9.08 Absorbable kinetic energy (J) 0.54 0.78 1.27 2.35 Allowable Kinetic Energy * Long stroke applies to the axial foot and rod flange types only. When using other types of mounting brackets or exceeding the long stroke limit, refer to “Air Cylinders Model Selection” on front matter pages of the Best Pneumatics No. 2 or the WEB catalog. * Manufacture of intermediate strokes at 1 mm intervals is possible. (Spacers are not used.) Bore size (mm) Standard stroke (mm) Long stroke * (mm) Maximum manufacturable stroke (mm) 20 25, 50, 75, 100, 125, 150, 200, 250 300 400 1000 25 450 32 450 40 500 Standard Strokes Made to Order (For details, refer to pages 101 to 117.) Refer to pages 95 to 99 for cylinders with auto switches. . Auto switch proper mounting position (detection at stroke end) and its mounting height . Minimum stroke for auto switch mounting . Operating range . Auto switch mounting brackets/Part no. 85 Series CBM2