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FA-4250YD/FWM-4250YBD Series

FA-4250YD/FWM-4250YBD Series

Our standard characteristic adjustable dampers, with wide outer thread range from M8 to M42, and variable shock absorbing characteristics.


Japanese Only

Part Number
Part NumberVolume DiscountDays to ShipRoHSExternal Thread Diameter Orifice Structure Maximum Collision Velocity
Minimum Collision Velocity
Maximum Equivalent Mass
Operating Temperature Range
8 Day(s) or more 10M42Multi-orifice30.7390-5~70
8 Day(s) or more 10M42Irregular multi orifice20.33500-5~70


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Basic Information

Main Body/Related Parts Main Body Construction Adjustable Type Stroke(mm) 50
Nominal Mounting Screw [M] 42 Max. Absorbed Energy(J) 441 Operating Environment Standard
Body Material Steel Full Length(mm) 212.5 Max. Drag Value(N) 27030
Piston Rod Return Force (N)(N) 83.3 Max. Operating Cycle(cycle/min) 10 O.D.(Ø) 42
Allowable Angular Misalignment Degree(deg) 2.5 Maximum absorbed amount of energy per minute(J/min) 2744 Cap Available

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