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The Quality Requirement of a Jaw Crusher

8/11/2014 8:29:12 AM8/11/2014 8:29:12 AM

After jaw crusher being manufactured, we generally test its quality. The testament includes its whole appearance and the quality of the components. This article will introduce you the quality requirement of a jaw crusher.

The quality requirement of its appearance

1. The main surfaces of the jaw crusher should not have the phenomena of galling, bumping, and rusting. The surface of the frame must be smooth, and have no visible uneven phenomenon.

2. For the Iron and steel parts, they must be re-rusted before coating. And their re-rusting level can not less than GB / T that is required in St2 of 8923—1988.

3. The painted surfaces of the jaw crusher must be smooth. And the color must be consistent. There should not be sagging, shelling and drain coating defects on the surfaces.

The quality requirement of its components

1. The dimensional tolerances, angle tolerance and geometric tolerances of the jaw crusher’s main welding parts, for example the frame, must comply with the provisions.

2. To the materials used in making main parts of the jaw crusher, their mechanical properties should not be less than the requirements of the materials.

3. If necessary, the eccentric shaft of the jaw crusher should be ultrasonic tested and the result must consistent with the provisions of the Class V JB / T5000.15-1998. If use other testing methods, the result must be consistent with the appropriate standards.

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