In principle, worm gear boxes are slower, but more solid and longer lasting than planetary gear boxes. The worm shaft is self-locking, like the threads of a screw, where the load cannot slip. These winches do not need a brake!
This Schmitz & Heisler model with the self-designed mechanical overload device already met the new European Standard when the winch was introduced to the German market during the seventies!
Line pull: 20kN ( 4500 lbs / 2000 kg)
This winch is no longer produced.
Most spare parts are still available.
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