Explosion-proof electric hoist static load test in place in order to ensure safe operation and accurate product

Explosion-proof electric  wire rope hoist  on static load test conducted according to the following procedures and requirements, so as to ensure accurate and safe to use, let a few minutes for your professional first volume:

    a. first start lifting mechanism, the empty load lifting operation, and make the car run back and forth on the whole trip, this load test run should not be less than 3 times already, there should be no anomalies.
     b. across the car parked in orbit, and gradually increases the load for lifting commissioning until the rated load applied after the car on the track full stroke. Running back and forth several times, departments should no abnormal phenomenon, after removal of the load should be no track anomalies.
     c. the car parked in orbit span, no impact to lifting nominal weight of 1.25 times the load from the ground at a height of 100 ~ 200mm, suspension residence time should be less than 10min, and there should be no instability phenomenon, then removal of the load, the car open to cross-client or feet, it is checked hoist metal structure and should no cracks, weld cracking, peeling paint, and other loose affect the safety of such damage or defects.
     d. third test not more than 3 times, and the third should be no permanent deformation, measured camber of the main beam in fact, it should be greater than 0.75/1000mm.
     e. inspect hoist track stiffness, should fast car to the track span, lifting nominal weight of the load from the ground 200mm,lever hoist electric hoist and load to be stationary, the measured values ​​on which the arch, this value the fourth is the difference between the results of the static stiffness electric hoist, electric hoist static stiffness, should be in the main beam span central S/10 range measurement. Stiffness hoist promised value 1/800S (mm).
    f. Dynamic load test run
    ① dynamic load test run should be carried out at full stroke length, from the weight should be nominal weight of 1.1 times the total starting and running time of the  manual hoist  shall not be less than 1h, the agency action should be agile, stable, reliable, security protection, interlocks and limit switch action should be correct and reliable.
    ② hoist commissioning after passing the transfer procedures.