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Guanhang QL series 25 ton mechanical jacks

Time:2021-12-16 Author:gh-jacks

Model: QL25

The frontal load: 25 t

Minimum height :270mm

Maximum height :400mm

Packing size: 570×350×240mm

Net weight: 11.3 kg

Gross weight: 13.3 kg

Packing quantity of wooden case :3 sets/case


The jack QL25 is forged from ductile iron, Main application places are petroleum chemical industry, mine, railway, building, metallurgy, chemical industry, port, electric power, steel, shipbuilding, automobile manufacturing, plastics machinery, industrial control, highway, bulk transportation, pipe linings, slope protection, salvage, tunnel, shaft governance ocean engineering, airport construction, bridge, aviation, aerospace and other industries, used widely.


Use method of Guan Hang mechanical jack:


1. Before use, we must check whether the jack is normal, whether the parts are flexible, add lubricating oil, and correctly estimate the weight of the weight, choose the appropriate tonnage of the jack, avoid overloading.

2. Adjust the method of supporting the teeth on the rocker, first turn the rocker clockwise by hand directly, so that the lifting sleeve can quickly lift the top weight. 3. Insert the handle into the rocker hole, move the handle up and down, and the weight rises accordingly. Stop moving handle immediately when red warning line appears on lifting sleeve. If you need to lower the braces to the opposite direction, the weight will begin to fall.


Key points and main matters of using Jack of Crown Airlines


1) Jack placement. The foundation of the jack should be smooth, solid and reliable. When setting the jack on the bottom, it should be padded with wood or other appropriate materials to expand the force area.

2) Jack placement. When placing the jack on the soft ground, the wooden block should be placed under the jack, so as not to tilt after the force. When the weight is elevated, the support pad should be placed below the weight at any time, but the hand can not stray into the danger area.

In the placing process of the jack, keep the line of action of the load center of gravity consistent with the axis of the jack, and in the process of jacking, we should strictly prevent the danger of the jack slanting and tilting due to the slant of the jack foundation or the horizontal displacement of the load. To prevent the jacks and heavy metal surface or smooth concrete surface contact sliding, when necessary to cushion with hardwood blocks.

3) Jack jacking operation. Jack jacking height shall not exceed the effective jacking range. When lifting large objects (such as girder) should be separated at both ends of the rise and fall, one end of the rise and fall, the other end must pad, pad, put steady. Jacks are not allowed to be used over load.

Start the jack should not be rapid, the rhythm should rise at a uniform speed, to slow down. When multiple jacks are used at the same time, they should be operated synchronously. Jack operation is completed, to be carefully checked, check the oil pressure and hidden danger, and maintenance, placed in the appropriate place.


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