Explosion-proof forklifts are used in special application places, so let us first understand the characteristics of explosion-proof forklifts themselves and the characteristics of the explosion-proof forklift operation area.
1. First, when operating in an explosion risk area where flammable materials are confirmed to exist, the various ignition sources of the forklift itself can be strictly controlled.
2. Secondly, while appropriately controlling the ignition source of the forklift, the gas detection system can be used to detect the gas concentration in the environment around the forklift. When the concentration reaches a certain ratio of its lower explosion limit, the forklift starts to alarm and eventually stops automatically, achieving the purpose of safe operation. To ensure the safe operation of the forklift, the ignition source must be effectively controlled, including:
(1) It is necessary to eliminate static electricity that may be generated during vehicle operation and prevent the outer side, tail and fork of the vehicle from catching fire due to collision.
(2) The diesel engine exhaust temperature, which is as high as 300-500°C, is reduced to below the specified temperature group (such as less than or equal to 135°C). (3) The diesel engine inhales flammable gas or steam during air intake, causing overspeed and loss of control.
(4) When the forklift presents abnormal operating conditions such as excessively high water temperature, exhaust temperature, oil temperature and surface temperature, the diesel engine should be able to be automatically shut down in time.
(5) When the diesel engine is normally extinguished or unexpectedly explodes, the flame passes through the intake system to produce backdrafts.
(6) The diesel engine exhaust flame and sparks are transmitted to the surrounding atmosphere.
In summary, explosion-proof forklifts must prevent leakage, sparks, etc., so explosion-proof forklifts must undergo special treatment. The difference between explosion-proof forklifts and ordinary forklifts is mainly in the circuit. The requirements for the circuit are very high, especially for motors, such as travel motors, steering motors, and hydraulic lifting motors. The motors will generate sparks when they rotate. In some special places, there will be risks, so special protection and isolation are stopped. Or it is sealed. Full shielding treatment is stopped. Some use AC motors. Because AC motors do not spark when working, they are relatively safe. Connection between wires. Special measures have been taken to prevent the spread of the virus.

Therefore, in some dangerous locations with extremely high safety requirements, such as factories with high dust levels, gas stations, and even in electronics factory workshops that are sensitive to electronic interference, explosion-proof forklifts must be used instead of conventional internal combustion or electric forklifts.