1. Selection of lifting belt specification and type. When selecting the specification of lifting belt, the size, weight, shape of the load to be lifted, as well as the coefficient of the lifting method to be used and other factors affecting the use mode must be included in the calculation. The requirements of the given limit working force, as well as the working environment and the type of load must be considered. The lifting sling with sufficient capacity and suitable length to meet the use mode must be selected. If multiple lifting belts are used for lifting load at the same time, the same type of lifting belt must be selected; The raw materials of the flat sling shall not be affected by the environment or load. Whether accessories or soft lifting lugs are required or not, the matching between the end of lifting belt and auxiliary accessories and lifting equipment must be carefully considered.

2. Limiting angle of sling When using flat sling with soft lifting lug, the length of the smaller lifting lug shall not be less than 3.5 times the thickness of the hook in contact with the lifting lug, and the included angle of the lifting lug movement shall not exceed 20 °. When connecting slings and lifting appliances with soft lifting lugs, the contact part of slings and lifting appliances must be continuous, unless the axial width of slings does not exceed 75mm, and the bending radius of lifting accessories must be at least 0.75 times the axial width of slings.

3. Follow the good lifting experience and plan the lifting and light operation plan before starting lifting.

4. When lifting, the lifting belt shall be correctly connected. The lifting belt shall be correctly placed and connected to the load in a safe manner. The lifting belt must be placed on the load so that the load can balance the width of the sling; The stitched part of the sling shall not be knotted or twisted at all times. It shall not be placed on the hook or lifting equipment, and it shall always be placed on the vertical part of the sling. The label shall be protected from damage by keeping away from the load, hook and locking angle.

Next: Working principle of manual hydraulic carrier

Previous: Introduction to permanent magnetic chuck