Inspection items of cranes

Inspection plays a main role in ensuring the safety operation of cranes. Below are some necessary checking points in and after the production process.

(1)    Main checking points for main steel structure

1. chemical composition and mechanical property test
2. cutting
3. welding technology and skill
4. ultrasonic test for non destructive welding
5. dimension inspection
6. proof loading test

(2)    Main checking points for hook

1. heat treatment mechanical property test
2. machining surface quality inspection
3. dimension inspection
4. proof loading test
5. melting chemical composition

(3)    Main checking points for gearbox

1. Leakage test
2. inspection after assembly
3. chemical composition and mechanical property test
4. cutting
5. welding technology and skill
6. ultrasonic test for non destructive welding
7. dimension inspection

(4)    Main checking points for wheel, rope, wire rope and drum

1. raw material chemical composition and mechanical property test
2. visual inspection on surface quality
3. function test for assembly
4. packing inspection