Downgrading and scrapping of lifting belts

1) If the safety technical performance of the inspected lifting straps does not meet the requirements, each using unit should be downgraded or scrapped according to the specific situation.

2) For downgraded lifting belts, the original identification should be covered, their rated lifting weight, length, etc. should be re identified, and they should be reclassified and stored on the corresponding tool rack according to requirements

3) The inner core of the circular lifting belt is load-bearing, and the cover is not load-bearing, only for protection. If the cover is pulled or scratched without damaging the inner core, it can be downgraded for use from an economic perspective on the premise of confirming that it does not affect its safety performance after inspection.

4) When the surface of the flat lifting belt is worn and the wire is not detached, it should be downgraded for use. However, any fracture surface that reaches 1/4 of the bandwidth should be scrapped

5) During use, if any of the following situations occur, the lifting belt should be scrapped:,

① The woven belt (including protective cover) is severely worn, punctured, cut, and torn, and the lifting belt has dead knots.

② The bearing seam is cracked, the stitching is worn off, and the fiber surface is rough and easy to peel off.

③ Due to time constraints and environmental influences, the fibers of the lifting belt soften, age, decrease in elasticity, and weaken in strength,

The surface of the lifting belt has excessive point like looseness, corrosion, acid and alkali burning, as well as thermal melting or burning. 4

5). The warning line with red warning line and lifting belt is exposed

6) If the tag of the lifting belt is lost and the tag is severely worn, making it difficult to identify and determine the rated lifting weight of the lifting belt, it should be scrapped,

7) For lifting belts that have been left unused for a long time, static and dynamic load tests should be conducted before use to verify whether their performance has changed, ensuring safe use.

8) Considering the aging factors of polymer materials in the lifting belt structure, in addition to daily inspections, static and dynamic load tests should be conducted once a year under normal usage environment, rated load, and low usage frequency. They can continue to be used under normal performance conditions. If the usage environment is harsh and the usage frequency is high, in addition to pre operation inspection, static and dynamic load tests should be conducted every six months to verify their safety. Those that fail the test and calibration should be scrapped.

9) When any part of the shackle is found to have cracks, plastic deformation, screw detachment, and the wear of the lock shaft and buckle section reaches 3-5% of the original size, it should be scrapped.