Description: Explosion-proof electric hoist is an electric hoist widely loved by factories in special working environments. This electric hoist has a certain explosion-proof rating. What does the explosion-proof grade mean? Why can it be explosion-proof?
Explosion-proof electric hoist is a kind of electric hoist widely loved by factories in special working environment. This electric hoist has a certain explosion-proof grade. What does the explosion-proof grade mean? Why can it be explosion-proof?
The explosion-proof level of explosion-proof electric hoist is dⅡAT2 to dⅡAT4.
d stands for flameproof type. II stands for Type II explosion-proof, namely factory explosion-proof. C stands for C-grade explosion-proof area, that is, it can be used in the most dangerous area. T4 represents the temperature group, from T1-T6, the highest reaches T6.
The difference between explosion-proof electric hoist and ordinary electric hoist:
The main reason is that the explosion-proof electric hoist is made of aluminum bronze and beryllium bronze, and the electric hoist casing is also made of H62 copper alloy material.
Reason for explosion protection:
The electric motor hoist's stress and friction parts include the hoisting wheels, wall plates, chains, motors, gears and gear shafts that make up the electric hoist. They are made of aluminum bronze and beryllium bronze alloy materials. Mainly, beryllium bronze alloy and aluminum bronze alloy do not spark when they are impacted or rubbed, so they are very suitable for making safe use in flammable, explosive, strong magnetic and corrosive occasions.
The main reason is that the alloy withstands the impact energy of 561LJ in 30% oxygen or 6.5-10% methane air oxygen, the impact of 20 magnetism, no spark and combustion. This is why the difference between explosion-proof electric hoist and ordinary electric hoist is.
The above is the introduction of the explosion-proof electric hoist grade and why it can be explosion-proof. I hope to solve your problem. If you have any questions, please consult.
Related searches: Explosion-proof hoist widely used in petrochemical industry