How To Select Wire Rope for Your Electric Wire Rope Hoist?
How to select wire rope diameter for your wire rope hoist Read more on electric hoist wire rope selection &OSHA Standards on Wire-rope Slings .
How to select wire rope for your electric hoist?
Wire rope electric hoist is currently one of the more popular light hoisting equipment due to the its large hoisting capacity and efficiency and relatively economical price compared with the European style wire rope hoist. It is well known that the wire rope is the main traction part of the wire rope electric hoist , which is vital part of the electric hoist. The wire rope runs more smoothly compared to that of the loop chains, and also it will save you from the trouble of the occurrence of the chain especially in the electric hoist with large lifting height.
To meet different load material handling requirements, the specifications of the electric hoist wire rope is varying according. . Wire rope specifications are based on the rated load of the electric hoist. The specifications of wire rope hoist will inevitably influence the selection of the wire rope diameter, and which will increase with the rated load of the electric hoist. When mutual matching is achieved, the safety of lifting lifting operations is guaranteed.
The rated load of a conventional wire rope electric hoist is typically divided into one ton, two tons, three tons, five tons, ten tons, and twenty tons. They correspond to the wire rope specifications. 7.7mm, 11mm, 13mm, 15mm, 17.5mm, and 19.5mm are the dimensions. Of course, there are 4.76mm or 5mm wire rope specifications for 0.5 tons of wire rope electric hoist wire rope. These data are the result of rigorous scientific data analysis, but they also represent the best state in lifting operations.
|
Rated load of electric wire rope hoist |
Wire rope specifications |
|
0.5 ton |
4.75/5 mm |
|
1 ton |
7.7 mm |
|
2 ton |
11 mm |
|
3 ton |
13 mm |
|
5 ton |
15 mm |
|
10 ton |
17.5 mm |
|
20 ton |
19.5 mm |
As can be seen, choosing to utilize a wire rope electric hoist safely involves more than just the formal operation, maintenance, and other considerations; the compatibility of the wire rope and electric hoist is also crucial. In order to avoid safety risks from electric hoist lifting operations, it is crucial to keep in mind that when your electric hoist has to replace the accessories wire rope, make sure to understand it matches the wire rope specifications.
Wire-rope Slings OSHA Standards
Use of wire-rope slings. Employers may only use wire-rope slings with identification markings that are permanently adhered, clearly legible, and that, as directed by the manufacturer, specify the recommended safe working load for the type(s) of hitch(es) being used, the angle on which the hitch is based, and the number of legs, if there are more than one.
Employers are required to make sure that wire rope and wire-rope slings:
- Have permanently attached and readable identification markings, as specified by the manufacturer, that indicate the recommended safe working load for the type(s) of hitch(es) used, the angle upon which it is based, and the number of legs if there are multiple legs;
- Not be loaded above the recommended safe working load, as specified on the identification markings by the manufacturer;
- Employers must utilize Table G-1 in 1915.118 to establish the number and spacing of clips when U-bolt wire rope clips are used to make eyes.
- Not be used without fastened and readable identification labels.
- The U-bolt must be installed by the employer so that the "U" part makes contact with the rope's dead end.
- Permanent, readable identification markings indicating the size, rated capacity for the type(s) of hitch(es) used, the angle on which it is based, and the number of legs if there are multiple legs are required on wire rope slings.
