According to the specification requirements,Rope hoist factory according JB/T9008.2-2004 " wire rope hoist test methods" for tensile testing. The main assessment criteria are:
1, with a 500V megger check temperature insulation resistance greater than 1.5MΩ.
2, reducer no oil leakage phenomenon, the operating noise of less than 85 decibels.
3, the dynamic load test: Rated voltage, frequency, 1.25 times more than 5 times the rated load reciprocating movements, and less than 3 times the air starter, stroke less than 2m.
4, the 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.
5, the buck test: the
Rope hoist motor inlet voltage is adjusted to 85% of the rated voltage, the load state Airstart less than 3 times, the trip less than 2m.
6, other routine items checked.
Appearance Spray: cleaning (if necessary surface treatment), primer, paint (at least twice a topcoat), dry film thickness of each layer of not less than 25um, the total film thickness of not less than 75um, spraying uniform, bright, color consistent paint adhesion grid method to meet inspection requirements. For special occasions Rope hoist, such as anti-acid, anti-fog, etc. can respond to the requirements of owners.