The core application scenarios of explosion-proof chain hoists are focused on safe lifting operations in flammable and explosive environments. The key application areas and specific scenarios are as follows:

1、 Petrochemical industry

Equipment maintenance and installation

In refineries and chemical plants, heavy equipment such as reaction vessels, storage tanks, and pipelines need to be frequently lifted. The explosion-proof chain hoist adopts a copper alloy shell (such as H62 copper alloy) and aluminum bronze/beryllium bronze gears to ensure that mechanical sparks are not generated during friction, avoiding the explosion of flammable gases (such as hydrogen, ethylene) or vapors (such as gasoline vapor).

Case: During the maintenance of a catalytic cracking unit in a certain refinery, an explosion-proof chain hoist was used to lift the catalyst hopper to prevent residual hydrocarbon gas explosions inside the unit caused by sparks.

Working at height

Cooperate with explosion-proof manual monorail carts to form a transportation system for high-altitude pipeline installation, valve replacement, and other scenarios. Its 360 ° directional rope design allows for flexible adjustment of lifting direction, adapting to complex work spaces.

2、 Mining and mining industry

Underground equipment handling

In coal mines, there are combustible gases such as methane. The beryllium bronze material (with zero magnetism) of the explosion-proof chain hoist can prevent gas explosions caused by magnetic tools, while the wear-resistant chain adapts to the humid and corrosive environment underground.

Case: A coal mine used an explosion-proof chain hoist to lift hydraulic support components to prevent gas explosion underground due to sparks.

Open pit mining operations

In open-pit mines, it is used to lift blasting equipment boxes, drilling rig accessories, etc. Its light weight and easy portability make it suitable for non powered work scenarios.

3、 Electricity and Energy Industry

Substation equipment maintenance

When repairing transformers and circuit breakers in substations, it is necessary to avoid electric sparks causing sulfur hexafluoride (SF ₆) gas decomposition and explosion. The electrical components of the explosion-proof chain hoist are made of anti-static materials to prevent the accumulation of static electricity.

Case: During the maintenance of a 500kV substation, an explosion-proof chain hoist was used to lift insulator strings to ensure operational safety.

Natural gas processing plant

In the natural gas purification and compression process, explosion-proof chain hoists are used to lift molecular sieves, filters, and other equipment to prevent sparks from igniting natural gas.

4、 Military and Aerospace Industry

Ammunition depot operation

Explosion proof chain hoists are used to lift sensitive items such as ammunition boxes and fuses in ammunition and pyrotechnic warehouses. Its non-metallic chain (such as copper) avoids friction sparks and ensures storage safety.

Case: A military factory uses explosion-proof chain hoists to lift rocket engine components to prevent propellant combustion caused by sparks.

Aircraft assembly and maintenance

Used for lifting large components such as engines and wings in aircraft assembly lines or hangars. Its high-precision brake (such as friction disc ratchet) ensures a smooth lifting process and avoids collision damage.

5、 Dust explosion environment

Flour mill, feed mill

In flour and feed processing workshops, the concentration of dust is high and it is prone to explosion when exposed to sparks. Explosion proof chain block adopts stainless steel or copper alloy chain to avoid sparks caused by friction.

Case: A flour mill used an explosion-proof chain hoist to lift flour bags to prevent dust explosions caused by sparks.

metal machine workshop

In the aluminum powder and magnesium powder processing workshop, explosion-proof chain hoists are used to lift molds and workpieces. Its sealing structure prevents dust from entering the interior and prevents electrical short circuits from causing explosions.

6、 Other high-risk scenarios

Fireworks and Firecrackers Warehouse

When storing and transporting fireworks and firecrackers, explosion-proof chain hoists are used to lift finished boxes to prevent sparks from igniting gunpowder.

Pharmaceutical and Food Industry

In pharmaceutical workshops (such as using organic solvents) or food processing plants (such as sugar powder environments), explosion-proof chain hoists are used to lift equipment or raw materials to avoid product contamination or explosion caused by sparks.

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