TPKL fill-controlled fluid coupling



The type TPKL fill-controlled fluid coupling is especially suitable for belt conveyors in rugged and tough mining industry environments. Ideal for the respective load condition of the belt, the TPKL regulates acceleration extremely gently. This protects the belt, prevents downtime and increases the service life of the system. Even very difficult start-up procedures are possible at short sequential intervals, thanks to the stand-still re-cooling. These fluid couplings ensure active load sharing in multi-motor drives.


The type DTPKL has two axially arranged working circuits that operate in parallel, enabling twice as much power transmission at the same overall height. The variant (D)TPKL-R has a flatter, although longer, tank for lower shaft center line heights. The most compact design is the (D)TPKL-E, which has no oil tank of its own. The tank is situated externally or, e.g., integrated into the swing frame.


  • Load-free motor run-up
  • Smooth startup of the driven machine – up to several minutes
  • Shorter periodic distances for subsequent starts thanks to the stand-still re-cooling
  • Drive overload protection
  • Dampens torsional vibration in the drive
  • Protects system components, thereby increasing service life
  • Robust and unsusceptible to environmental influences
  • Wear-free power transmission; less maintenance and repair work
  • Automatic load sharing in multi-motor drives protects motor against overload
  • Sequential startup of the motors reduces the load on the supply circuit

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