I. When hoisting and lifting. To ensure that the load changes smoothly.Polyester Round lifting slings
Two. When multiple lifting belts are used together, try to ensure that the load distribution of each strip is even. Do not drag the suspended object when moving it.
Three. Sling as far as possible to avoid the hanging object sharp corner area.Polyester Round lifting slings If it is impossible to avoid should be added to the corner sheath
4. The use of end accessories should be reasonable. Strictly in accordance with industry standards.Polyester Round lifting slings When multiple lifting belts are used together. Select the same material and the same type of lifting belt.
Five: the lifting point (force point) avoid sewing and joint part.
6. Avoid sex tremors. Sling shrinkage should not exceed 3%.
7. Avoid contact with high temperature objects. The operating temperature should be controlled in -40~100℃.
Eight. Avoid damp. The tension of the sling can decrease by up to 15% after being affected by moisture
9. The hoisting belt should be stored away from exposure to the sun.
To judge the quality of the lifting belt, look at the raw material, observe whether it is high strength silk and whether it is the raw material silk produced by regular manufacturers.
Raw wire of lifting belt can be roughly divided into three kinds:
1. The grain
2. Powder
3. The recycled material
Granular material because of its high integrity. The raw material silk tension is stronger and not easy to break, and the powder is much worse. Recycling material belongs to waste utilization, because its material is mixed so the tension is not guaranteed, such lifting belt for production is very dangerous.
Lifting belt
The difference between granule and powder refers to the raw materials of synthetic fiber polypropylene:
The molecular structure of Polypropylene PP is polypropylene PP, which is a crystalline polymer. The Chinese name is polypropylene, commonly known as 100 fold glue. PP (polypropylene) using the Ziegler – Natta catalyst to make propylene monomer catalytic polymerization and preparation, is the molecular chain is arranged in a very regular crystalline isometric polymer. PP (polypropylene) according to its crystallinity can be divided into isogauge PP (polypropylene) and random PP (polypropylene), isogauge polypropylene for highly crystalline thermoplastic resin, crystallinity up to more than 95%, molecular weight between 8-150 thousand; Atactic polypropylene is an amorphous, microstrip viscous white waxy substance at room temperature, with a low molecular weight of 3000-10000, irregular structure and lack of cohesion, which is rarely used. PP granule material for natural color, cylindrical particles, particles smooth, particle size in any direction of 2mm ~ 5mm, odorless, non-toxic, no mechanical impurities. Granular material can also be understood as raw material, is the raw material extracted from the pure material, whether the color or tension of the finished product made of granular material is much better than powder.
White lifting tape
Polypropylene powder and recycling materials: generally speaking, PP raw materials are recycled and used. At this time, the extracted polypropylene filament is made of recycled materials. It can be understood that the purity of this raw material is certainly not as good as the original material, if the normal three wires can reach the tension. You may need 7-10 sticks for recycling. This is why some finished white lifting belts, which look particularly thick, are often much cheaper than thinner ones. The manufacturer of the rear hoisting belt reminds you that when choosing the polypropylene hoisting belt, the quality of the product cannot be determined by the appearance, nor the price of the product can be determined by the appearance. Use and select white lifting tape, start with understanding.
Post time: Oct-14-2022