Products

1. The main beam adopts optimized design with reasonable structure ;The main girders are box girders, and the main welds are automatically welded by submerged arc and non-destructively detected. The vertical deflection is 1/1000, and the web camber is cut by numerical control .After welding the whole beam shot blasting treatment, stress elimination, rust removal, Sa2.5 level.

2. The connection of the main force parts is adopted by 10.9 grade high strength bolts to ensure the strength and precision of the whole structure.

3. The drum is made by centrifugal casting process, and the material reaches ZG55 or above ;The large diameter drum is preferred to reduce the bending fatigue of wire rope and extend the life of wire rope .The length of the reel is shortened and the deflection Angle of the wire rope is reduced to prevent the rope from falling off .There are 3 safety rings for the wire rope, which are fixed with clamps. At least 2 rings of the wire rope are fixed.

4. The hook is manufactured in accordance with national standards, and adopts anti-wear roller bearings from famous manufacturers of Ha, Wa and Luo. The hook can rotate 360 degrees and is equipped with spring-pressed safety clasp to prevent slipping.

5. Steel structure paint is epoxy zinc-rich paint, spray primer, intermediate paint and finish paint, painting film thickness of more than 120μm.

6. The pulley material Q345B rolling pulley, and through heat treatment, increase the abrasion resistance and strength of the pulley groove.

7. The control box is made of cold-rolled steel plate and the surface is treated with corrosion protection.