Product description
It is mainly used for the impact resistance test of the cover plate (cover ring) of locks.
Technical parameters
1. Impact height: 305mm.
2. Strike rod: Mass 0.23kg
3. Diameter 9.5mm
4. Length: 412mm
5. The lower end forms a 60° Angle.
6. The top is an R1.5 spherical surface.
7. The hardness value after heat treatment is 58HRC-60HRC.
Standard
Plug-in door lock QB/T 2474-2017 6.2.20 The cover plate (cover ring) is impact-resistant
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