Lifting Hook is the main parts of hoisting machinery, its material, manufacturing process, quality maintenance inspection, and so on any part of lax management, will directly cause accidents. Therefore, Lifting Hooks the hook must strictly control the material, inspection and scrap standards.

Material

The hook material must adopt the high quality low carbon sedative steel or the low carbon alloy

Plate Steel general application gb700-79 "ordinary carbon structural steel technical conditions" in the provisions of A3, C3 steel 16Mn steel.

The hook is divided into single hook and double crochet according to the shape, divided into forging hook and laminated hook according to manufacturing method.

Single hook manufacturing is simple, easy to use, but the force situation is not good, mostly used in the starting weight of 80 tons of work occasions; Laminated hook by a number of pieces of cutting formed steel riveted, the individual plate cracks when the entire hook will not be damaged, good security, but larger, Lifting Hooks mostly used in large weight or hanging steel ladle crane. The hook is often impacted in the course of operation and must be made of high quality carbon steel with good toughness.

Single hook manufacturing is simple, easy to use, but the force situation is not good, mostly used in the starting weight of 80 tons of work occasions; Lifting Hooks Laminated hook by a number of pieces of cutting formed steel riveted, the individual plate cracks when the entire hook will not be damaged, good security, but larger, mostly used in large weight or hanging steel ladle crane. The hook is often impacted in the course of operation and must be made of high quality carbon steel with good toughness.

Hook classification is very wide, generally include: Shackle, rings, rings, pear-shaped ring, long rings, combined rings, S hook, Nose hook, American hook, claw hook, eye-shaped slip hook, with insurance card rings screws, chain shackle, with unique, novel, high quality, safe features, applicable to factories, mines, petroleum, chemical and ship terminals. Ensure safety, quality safety factor, static load up to 3 times times. Starting weight from 5 tons $number tons.

The hook belongs to a kind of fetching device, Lifting Hooks it is very important for the crane to carry out the operation, and can save the time and reduce the cost.

According to the different shape of the goods transported, the device can be divided into two categories, general and special, and the universal device has two kinds of hooks and rings. The hook is a combination of hook and pulley, which is a very flexible and simple object-taking device. The hook is divided into two types: long type hook and short type hook. The long hook uses a short hook and is mounted on the drawing board in parallel. Lifting Hooks Pulley the number of single and double can be, the hook beam is shorter and the force is better.

The hook pulley axle is also the hook beam, saving the pull plate, but the pulley number needs to be symmetrical on both sides, so the pulley shaft is longer, the force is not good, Lifting Hooks the axle is thicker. Long hooks should be used to make the hook rotate without touching the pulley.

The overall height of the hook is relatively small, so the short hook is suitable for smaller cranes.