Model Code RS D Q -- B -- 20× 15 -- D Series Mounting Type Bore Tube Type Stroke Acting Type Rod End Type Model with Built-in Magnetic RingBlank: No Magnetic RingD: With Magnetic RingB: Access(Standard)A: With Thread on Both Ends20-50mmBlank: Thread TubeF: Quick Tube0-30mm D: Double ActingB: Double Acting(Built-in Spring)T: Single Acting(Spring Extent)Blank: Round Bar TypeK: Flat Bar TypeR: Roller TypeL: Level Roller Type with CushionB: Level Roller Type with Shock AbsorberC: Level Roller Type with Shock Absorber and Ravel CapD: Level Roller Type with Shock Absorber and Self-lockE: Level Roller Type with Shock Absorber, Ravel Cap and Self-lock Specification Bore Size(mm)20324050Acting TypeDouble Acting / Single Acting with Spring Return(Extent)Stopper TypeRound Bar Type / Flat Bar Type / Roller TypeRound Bar Type / Flat Bar Type / Roller Type /Level Roller Type with Shock AbsorberWorking MediumClear AirRange of Working Pressure(MPa)1.0Guaranteed Pressure(MPa)1.5Working Temperature(°C)-10 70Mounting TypeThrough Hole(Standard) / Both Ends Female Thread(Optional)LubricationNot RequiredTolerance of Stroke(mm)+1.4+0Cushion TypeBoth Ends Rubber CushionPort SizeRc(PT)1/8