How to judge the quality of T8 level lifting chain

When choosing a T8-level lifting chain, you can judge the quality by observing whether the surface is smooth, whether the blackened chain has faded, whether the typing is clear, the traces of the ejector rod, the uniformity of welding, and whether the chain type has high and low angles. Vertical distortion should not exceed 30 degrees.

T8 grade lifting chain is one of the commonly used lifting rigging. When choosing, in order to buy reliable and high-quality slings, in addition to referring to the manufacturer's strength, production standards and other credit references, we can also observe the Make a simple judgment based on the surface of the chain to determine whether its quality is good.

The main methods are as follows:

1. Check whether the surface of the chain link (whether it is galvanized, blackened or polished) is smooth and there should be no pits.

2. If it is a blackened lifting chain, you can wear white gloves, and then wipe the chain to see if it has faded, whether there is black substance on the gloves, or whether there is a lot of oil stains. A good blackened chain should be shiny black. It is bright, and the surface is very clean, with a little oil, and no color or a small amount of color fading.

3. Typing must be clear.

4. There should be no obvious signs of being pushed at the position of the push rod.

5. The welding position is the welding port. The welding at this position must be even and the burrs must be removed cleanly. The welding position must not be offset. It must be in the middle of the chain link, not upward or downward.

6. The chain type cannot have high or low angles or one side is high and the other is low.

7. Verticality of high-strength lifting chains. Generally speaking, the twist of the chain cannot exceed 30 degrees when the chain is vertical.