For electric hoists in operation, the following rust prevention methods can be adopted, which combine daily maintenance, component protection, and operating standards to effectively extend the service life of the equipment and ensure safe operation:

1、 Rust prevention treatment for core components

Exposed metal surface

Apply calcium based anti rust grease or specialized anti rust grease to the exposed surfaces (such as shells, connectors) and threaded surfaces of the processed parts of the gourd. This type of grease can form a protective film, isolate air and moisture, and prevent oxidation and rusting.

Gearbox and gears

Coat the surface of the gears inside the gearbox with anti rust grease containing barium petroleum sulfonate, which has strong corrosion resistance.

Regular inspection: Check the integrity of the oil film every month. If rust is found, use hardwood or bamboo chips (to avoid scratching the surface with metal tools) to scrape off the rust and reapply oil; If the oil film is damaged or deteriorated, it needs to be cleaned with kerosene or gasoline before applying anti rust grease.

Hook bearing

Injecting calcium based anti rust grease into the hook bearing can not only lubricate and reduce wear, but also prevent rust.

Inspection frequency: Check the rust prevention effect every two weeks to ensure that the grease has not dried up or deteriorated.

wire rope

Apply anti rust lubricating oil: Apply specialized anti rust lubricating oil evenly on the surface of the steel wire rope to form an oil film protective layer.

Non homework protection: When not in use, wrap the steel wire rope with tarpaulin or plastic film to avoid direct exposure to humid environments.

2、 Daily operation and maintenance standards

Work environment management

Avoid humid environments: After working in rainy or snowy weather or high humidity areas, promptly dry the surface water stains of the equipment with a dry cloth and apply lubricating grease.

Cleaning and maintenance: Regularly clean the dust, oil stains, and other impurities on the surface of the equipment to prevent the adhesion of corrosive substances.

Regular inspection and repair

Monthly inspection: Focus on inspecting the oil film of the gearbox, the oil film of the steel wire rope, and the grease status of the hook bearings, and record the rusting situation.

Minor rusting treatment: After discovering rust spots, gently wipe off the surface rust with a steel wire ball or rust removal sandpaper, and then apply anti rust grease; If there is severe corrosion (such as corrosion perforation on the chain or shell), it is necessary to immediately stop using and replace the components.

Long term disuse protection

If the equipment needs to be idle for a long time, all components should be thoroughly cleaned and coated with anti rust grease. The steel wire rope should be wrapped with moisture-proof material and stored in a dry and ventilated place.

3、 Comparison and selection suggestions for rust prevention methods

Advantages and limitations of the applicable scenarios of the method

Applying anti rust lubricating grease to exposed surfaces, threads, and hook bearings is easy to operate, cost-effective, and provides good protection. Regular reapplication is required, and may melt and lose in high temperature environments

Special anti rust grease for gearboxes. The internal gears of the gearbox have strong corrosion resistance and are suitable for precision components that need to be disassembled and inspected. The maintenance frequency is high

Steel wire rope anti rust oil, steel wire rope surface lubrication anti rust two in one, to extend the service life, moisture-proof materials need to be wrapped, non operational maintenance

Physical wrapping (tarpaulin) with non operational steel wire rope and complete machine isolation from air and moisture, low cost and slightly cumbersome operation, requiring

The main equipment produced by Hebei Makita: stage electric hoist, electric chian hoist, wire rope electric hoist，Hand chain hoist, lever hoist, pneumatic hoist and other lifting equipment