The explosion-proof elements of explosion-proof electric hoists are mainly reflected in their design, material selection, structure, and safety protection devices to ensure safe and reliable operation in explosive environments. The following are the main explosion-proof elements of explosion-proof electric hoists:

1. Explosion proof motor

Design features: The explosion-proof motor is the core component of the explosion-proof electric hoist, and its internal structure and materials have been specially treated to prevent the motor from generating electric sparks or high temperatures during operation, thereby avoiding explosions.

Type: Common explosion-proof motors include explosion-proof motors and increased safety motors. Explosion proof motors can prevent the spread of explosive flames and high-temperature gases through their sturdy casing in the event of an explosion inside the motor; The increased safety motor improves its safety performance by measures such as increasing electrical clearance and creepage distance.

2. Explosion proof electrical components

Selection criteria: Explosion proof electrical components must comply with relevant explosion-proof standards, such as GB3836, IEC60079, etc., to ensure that they will not cause explosions when used in explosive environments.

Application: These components include control buttons, contactors, relays, etc., all of which are designed to work stably in harsh environments without generating electrical sparks or high temperatures.

3. Explosion proof structural design

Shell material: The shell of explosion-proof electric hoists is usually made of impact resistant, aging resistant, flame-retardant, and anti-static materials, such as SMC engineering plastics. These materials not only have excellent physical properties, but also effectively prevent the generation of static electricity and sparks.

Sealing: The shell adopts a sealed structure, which has the advantages of waterproof, dustproof, etc., and can prevent explosive mixtures from entering the interior of the equipment.

Heat dissipation design: Although it is necessary to prevent high temperatures, good heat dissipation design is also required inside the equipment to ensure that the motor and other electrical components do not overheat during long-term operation.

4. Safety protection device

Overload protection: When the electric hoist is subjected to heavy loads exceeding its rated load, the overload protection device will automatically cut off the power supply to prevent motor overload damage and fire.

Limit protection: By installing limit devices to restrict the lifting and lowering height of the hook, it prevents the hook from exceeding its limit position and causing accidents.

Braking protection: Adopting a reliable braking system to ensure rapid braking and maintaining in place in case of power outage or emergency.

5. Other explosion-proof measures

Explosion proof level identification: Explosion proof electric hoists are usually marked with their explosion-proof level and applicable environment on the shell for users to choose and use correctly.

Maintenance tool requirements: During the repair and maintenance process, the tools used must also meet explosion-proof requirements to avoid sparks or high temperatures during the repair process.

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