Yale A300 Series Hydraulic Door Closer The Yale A300 Series provides a full range of economy surface mounted door closers which covers a wide range of applications. Three Power sizes to suit most pull side applications where economy and ease of installation is required. Specification Power SizesCloser fixed power size range of 3, 4, 5. MaterialsHigh purity die-cast aluminium body. Heat treated steel rack and pinion. Stable hydraulic oil for consistent climatic operation and constant lubrication. Forged steel arms passivated against corrosion. MechanismRack and pinion design. Hold-openAvailable in this series.Hold-open angle between 80° - 180°.Order arm assembly separate. HandingNon-handed. Suitable for left or right hand doors. AdjustmentIndependent valves control closing and latching speeds. Closing speed 180° - 10°.Latching speed 10° - 0°. Offset Parallel ArmAvailable in this series.Suits up to 13mm door stop. FinishSilver Baked Enamel - SIL Dimensions Close Documents | Downloads Yale Door Hardware Catalogue.pdf (.pdf, 1.1 MB) Close Ordering Trade Pack Description Part Number Size 3 Standard Arm Door Closer Y300-STSIL Size 4 Standard Arm Door Closer Y400-STSIL Size 5 Standard Arm Door Closer Y500-STSIL Hold Open Arm Assy to suit A300-STSIL Y2400-224SIL Hold Open Arm Assy to suit A400-STSIL, A500-STSIL Y2600-224SIL Close Yale A2400 Series Power Adjustable Hydraulic Door CloserPower adjustable 2-4 Yale A2600 Series Power Adjustable Hydraulic Door CloserPower adjustable 2-6 Yale A300 OP Series Hydraulic Door CloserFixed power size range of 2, 3, 4.