Crane is a kind of lifting and handling machinery widely used in port, workshop, electric power and construction site.

We all know that crane is a good choice for lifting heavy objects. We usually see such a scene: after the boom is extended, the hook suspends the heavy object, and then the steel wire rope is shortened, the boom is rotated, the wire rope is relaxed, and the problem is solved. Everything seems easy. However, if the place is limited, for example, to hoist to the door opening upstairs, the crane arm can not extend into the inside, resulting in the weight can not be directly lifted to the designated position. There is a lot of learning here.

Cranes generally have two kinds of equipment, some have a single hook, there are larger tonnage, for example, 16 tons or more have large hooks and small hooks. In this case, it is necessary to use cranes with large and small hooks.

When lifting, use big hook and small hook to hook the two ends of the heavy object, and then rotate the crane arm to the top of the designated door opening, make the big end face inside, adhere to the hook at the outer end, and slowly loosen the hook on the inner side. When the heavy object depends on the ground, put it under the bottom with a manual hydraulic fork truck. When the heavy object falls on the forklift, loosen the hook on the inner side, and then slowly Loosen the hook on the outside. In the process of the weight falling, someone from the door hole will pull the forklift truck inward. When all the weight outside the weight falls on the floor, loosen the hook on the outside and transfer the weight to the designated position.

In order to ensure that the whole hoisting process is relatively smooth, the whole process must be slow, and make the hook inward and the small hook outward. Due to the small hook component and the fine wire rope, a lot of force can be saved in the end link.

Article source: Guangdong lifting equipment rental http://www.jmzhongte.com