Explosion-proof electric hoist qualified indicators

  Electric  rope hoist  factory undergoes rigorous inspection and testing work, especially with the explosion-proof function lifting equipment, then the proof electric hoist achieve what criteria to be qualified products? The following introduces you to:
       First check the temperature insulation resistance greater than 1.5MΩ, ensuring no leakage gear parts, electric hoist operation when the noise should be less than 85 db.
       Second, we must test for detecting whether proof  lever hoist  qualified, ①, dynamic load test: 1.25 times rated load five times repeatedly lift, air start at least three times, the trip less than 2m. ②, brake down test, according to the national standard lifting speed brake slipped less than 1%. If there is a second brake, the second brake support to be tested load capacity. ③, electric hoist motor inlet voltage adjusted to 85% of rated voltage for load test. ④, blood pressure tests.
       Finally, there is the appearance of proof  wire rope hoist  qualified testing with paint must be uniform, bright, consistent color, paint adhesion grid method to meet the inspection requirements.