Regarding the rust prevention methods for explosion-proof pneumatic hoists, we can start from multiple aspects such as material selection, rust prevention measures, maintenance methods, and environmental control. The following is a detailed introduction for you:

Material selection

The main load-bearing components, such as hooks, chains, steel wire ropes, etc., should be made of materials with high strength, good toughness, and excellent fatigue resistance. Hooks are usually forged from high-quality alloy steel and undergo heat treatment to improve hardness and wear resistance.

Pneumatic system components: pipes, valves, etc. are made of corrosion-resistant and high-pressure resistant materials to ensure the sealing and reliability of the pneumatic system.

Rust prevention measures

Apply anti rust grease and lubricating oil

Gearbox: Apply anti rust grease containing barium petroleum sulfonate on the surface of the gears and conduct regular inspections to protect the integrity of the oil film.

Exposed surfaces: For corroded parts such as machined exposed surfaces and exposed threaded surfaces, calcium based anti rust grease or other types of anti rust grease should be applied.

Steel wire rope: The surface should be coated with anti rust lubricating oil and wrapped with tarpaulin or plastic film under non working conditions to prevent direct contact with humid air.

Special rust prevention treatment: For some key components, such as explosion-proof surfaces, phosphating method can be used to immerse the explosion-proof shell in phosphating solution and deposit a layer of insoluble crystalline phosphate conversion film (phosphating film) on the surface. Phosphating film has high chemical stability, which can effectively prevent oxidation corrosion of metal explosion-proof surfaces under the erosion of corrosive gases and liquids. At the same time, it can improve the adhesion and mechanical wear performance of metals to oil and paint.

Maintenance methods

Regular cleaning and inspection

Clean the explosion-proof pneumatic hoist promptly after each use, especially any debris and acidic or alkaline substances attached to the surface, to reduce the risk of corrosion.

Regularly check the rust condition of each component. For rusted parts, first use hardwood or bamboo slices to scrape off the rust spots, and then reapply oil; If the original oil film has been damaged or deteriorated, clean it with kerosene or gasoline first, and then apply anti rust grease.

periodical lubrication

The steel wire rope used at room temperature should be lubricated at least once a week, and a suitable tool (such as a hard brush or a smooth and clean wooden board) should be used to evenly apply lubricating grease on the steel wire rope. When the temperature is low in winter, the lubricating grease should be heated before application to ensure lubrication effect.

The rotating parts such as bearings and gears should also be regularly lubricated to ensure the flexible operation of the equipment and reduce wear and corrosion.

environmental control

Avoid harsh environments: Try to avoid using explosion-proof pneumatic hoists in highly corrosive and humid environments. If unavoidable, increase the frequency of cleaning and maintenance.

Storage environment: Pneumatic hoists should be stored in a dry and ventilated warehouse to avoid moisture and rust. When storing, the equipment should be placed on wooden pads to prevent direct contact with the ground, and regular inspections and maintenance should be carried out.

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