Rebar coupler is also known as mechanical splices in the construction industry. The common specifications of the rebar coupler are M12, M14, M16, M18, M20, M22, M25, M28, M32, M36, and M40. The most commonly used specifications are M16, M18, M20, M22, M25, M28, and M32. These are the most used on the site, but also the most commonly used.

Today, we will introduce to you how to solve the wrong diameter or length problems encountered in the processing of steel sleeves. 

Causes: 

1. The specifications of raw materials are not accurate, and the feeding speed is too slow.

2. Raw materials are bent and not straightened before processing.

3. The mechanical equipment malfunctioned, resulting in the diameter of the rebar coupler becoming smaller.

4. Operators do not process according to engineering drawings.  

Solutions:

1. Adjust raw material specifications and models, and pre-feed appropriate amount.

2. Straighten the round bend steel before cutting the raw material.

3. Check the mechanical equipment, and check the taper of rough diameter after processing.

4. Strengthen the technical training of staff, and improve the level of quality inspection.