A tuned torsional vibration steel spring damper that reduces torsional vibrations.
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A tuned torsional vibration steel spring damper that reduces torsional vibrations.

Geislinger damper

The steel springs optimize the natural frequency of a system in order to eliminate most of the critical resonance. The Geislinger Damper is specifically designed for large diesel and gas applications as well as reciprocating compressors. It provides constant stiffness and high damping throughout its service life. The Geislinger Damper is often used in combination with a Geislinger Monitoring System which enables an early detection of critical loads.

It reliably protects crankshafts, camshafts, intermediate and propeller shafts in all kinds of reciprocating systems. By changing the critical frequency, the Geislinger Damper also helps to avoid a barred speed range.

As modern engines tend to create more than one critical frequency, Geislinger has developed dual damper solutions as well as combinations of a Geislinger Damper and a Geislinger Vdamp®. This design flexibility guarantees the best solution for every type of engine.

The damper is usually mounted to the free end of the crank or camshaft and consists of a primary and a secondary section. Between these sections, groups of steel leaf spring packs are arranged. These spring packs, together with intermediate pieces and the secondary section, form chambers which are filled with pressurized engine oil.

The steel springs are tuned to optimize the natural frequency of each individual system. Engine oil is used to reduce torsional vibrations by wearless hydraulic damping.

The damper´s elasticity is determined by its shape and number of springs. Thereby, the torsional system is detuned and the most critical resonance is eliminated.

If the exterior section vibrates in relation to the inner one, the leaf springs bend and the pressurized engine oil is pumped from one chamber into another. This reduces the relative motion of the two parts and thus dampens the residual torsional vibrations.


  • Low life-cycle cost
  • Tailored to your system
  • Precise calculation and defined properties
  • No aging
  • Long periods between overhauls
  • Condition-based maintenance with Geislinger Monitoring
  • PTO/PTI coupling can be integrated
  • Geislinger Worldwide After Sales Service

technical data

  • Dimensionless damping factor: 0.2 – 0.5
  • Ambient temperature: -10°C to 120°C
  • Diameter: 0,3m to 5 m


  • 2 stroke and 4 stroke diesel and gas engines, reciprocating compressors
  • Marine
  • Rail
  • Power generation
  • Mining
  • Oil & Gas
  • Industrial applications