1. Heat treatment method and hardness index value of anchor clip: the effect of heat treatment process is to better improve the hardness of anchor parts. Because the heat treatment method is not the same, coupled with the difference of the material used, the harm of the hardness of the anchor clip expands with the heat treatment process of the oil jack supplier. Relevant specifications only require regular inspection of the sample proportion for the hardness of anchor clips, but there is no actual requirement for the actual hardness index value.

2, the use of material: material is the source of prestressed anchor product quality, the quality of the material is relatively harmful to the anchor clip. It is the same steel model, different manufacturers, different materials are very different, and the manual jack supplier caused the unstable production and manufacturing quality of anchor.

3, the prestressed anchor technology content is very high, screw jack suppliers and operators must have the qualification certificate: different types of prestressed anchor specifications, specifications and clamping methods, specifications, Angle of view, tooth type and other performance parameters are confirmed by the design scheme. High technology content, can not be privately produced, must be in accordance with the provisions of the design of production and processing. The production and manufacture of anchor must have a certificate of qualification.

How do jack manufacturers tell you to choose the appropriate prestressed anchor?