When we check the heavy hinge, we must first detect the radial and offset of the hinge. The error of this offset cannot exceed 2 mm. Second, we must check whether there is any noise during the operation of the hinge and whether there is any leakage inside. Oil phenomenon to prevent damage to internal parts. In fact, to a certain extent, hinges and hinges are still different.

Test whether the hinge can rotate for a long time to meet the quality requirements, generally tens of thousands of times, less than 200,000 times the test speed, in this process to check whether there are parts scattered inside, whether there are cracks outside. At the same time, satisfying these tests and passing the full score is considered a success, otherwise the test fails.

K39-Heavy hinge

Using SUS304 material

T-shaped design, porous installation, firmer

Uses: van, medium-sized door