A hydraulic jack (also hydraulic hoist Büffel , hydraulic winch or Büffel winch ) is a winch in the form of a front and side jack, which is used for technical assistance for lifting loads. The short name "buffalo winch" is derived from the model designation "buffalo" from the manufacturer Weber Hydraulik .
Similar to a rack and pinion winch , depending on the version, a hydraulic jack has a lifting force of up to 100 kN (corresponds approximately to the weight of 10 t ) and a height of up to 80 cm. The weight of the device itself is around 20–30 kg and it can lift up to 35 cm. In order to be able to use the lifter flexibly, both the lifting claw and the operating lever are adjustable. The built-in hydraulic pump is operated manually using a pump lever.
- Dieter Ollesky: Metallfachkunde 3. Construction mechanics and metal construction, BG Teubner, Stuttgart 1993, ISBN 978-3-519-06707-8 , p. 130.
- Martin Scheffler, Klaus Feyrer, Karl Matthias: conveyors, hoists, elevators, industrial trucks. Springer Fachmedien, Wiesbaden 1998, ISBN 978-3-663-16319-0 , pp. 58-59.
- Hydramite hydraulic jack (accessed January 28, 2016)