In explosion-proof electric hoists (also known as explosion-proof electric hoists or explosion-proof electric hoists), high sensitivity requirements are usually related to ensuring the safe operation of equipment in potentially explosive environments. These highly sensitive locations are mainly concentrated on key components of electrical and mechanical systems. Here are a few highly sensitive locations that require special attention:

Electrical control system:

Control circuit board: Components on the circuit board, such as relays, contactors, fuses, etc., require high sensitivity to ensure that they can quickly and accurately execute actions upon receiving instructions, while avoiding sparks or arcs caused by electrical faults, which can lead to explosions in explosive environments.

Motor drive system: The starting, stopping, and speed regulation process of the motor needs to be precisely controlled to prevent sparks caused by excessive current or motor overheating. Therefore, the sensitivity of the motor drive system is crucial for its explosion-proof performance.

Safety protection device:

Limit switch: used to control the upper and lower limits of the hook or basket to prevent overload or overtravel. These limit switches require high sensitivity to ensure that the power can be immediately cut off when the limit position is reached, preventing equipment damage or safety accidents.

Overload protection device: used to monitor the load condition of the motor. Once the rated load is exceeded, the power should be immediately cut off. The sensitivity of overload protection devices is of great significance for protecting motors and preventing equipment damage.

Mechanical transmission components:

Gearbox and transmission shaft: The accuracy and sensitivity of these components are crucial for ensuring transmission efficiency and stability. In explosion-proof electric hoists, wear or failure of mechanical transmission components may cause motor overload, vibration, or increased noise, thereby affecting the explosion-proof performance of the equipment.

Braking system: The sensitivity of the braking system directly affects the braking effect and safety of the equipment. In emergency situations, the braking system needs to work quickly and reliably to prevent the hook or basket from losing control and falling.

Explosion proof casing and sealing components:

Although these components themselves do not directly involve highly sensitive electrical or mechanical operations, their sealing and explosion-proof performance are crucial for protecting internal electrical and mechanical components from external environmental influences. Therefore, in the design and manufacturing process, it is necessary to ensure that these components have sufficient strength and sealing to meet explosion-proof requirements.

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