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Hydraulic jack products
Posted on: 2014-6-9 16:00:13 Author: Branch of hydraulic jacks Source: hydraulic jack factory

Hydraulic jacks
Jack is the simplest lifting equipment with a small lifting height. It has two types: mechanical and hydraulic. There are two types of mechanical jacks: rack type and screw type. Due to the small lifting weight and laborious operation, they are generally only used for mechanical maintenance work and are not applicable during bridge repair. The hydraulic jack has a compact structure, stable work and self-locking function, so it is widely used. Its disadvantages are limited lifting height and slow lifting speed.

Maintenance matters:

(1) When using a hydraulic jack , the bottom should be flat and tough. Non-oil stained wooden boards to increase the pressure bearing surface and ensure safety. Do not use iron plates instead of wooden boards to prevent sliding.
(2) It is required to be stable during lifting. After the heavy object is lifted a little, check for abnormal conditions. Do not lengthen the handle arbitrarily or operate too aggressively.
(3) Do not overload and super high. When a red line appears on the sleeve, it indicates that the rated height has been reached and the lifting should be stopped.
(4) When several hydraulic jacks are operating at the same time, there must be a special person to direct the lifting or lowering simultaneously. Support wooden blocks between two adjacent hydraulic jacks to ensure space to prevent sliding.
(5) When using a hydraulic jack, always pay attention to the sealing part and the pipe joint part, and ensure that it is safe and reliable.
(6) Hydraulic jacks are not suitable for places with acid, alkali or corrosive gas.


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