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NR Explosion-Proof Hoist

Product Name: NR Explosion-Proof Electric Hoist
Lifting capacity: 0.25-30t
Work Duty: M5
Applications: Petroleum, chemical industry, mining, military industry, etc.
Overview
Features
Parameter
Application
Overview
The new design NR explosion-proof hoist is made strictly in accordance with GB/T 3836.1-2010 and GB/T 3836.2-2010, which can meet the requirement of gas explosion-proof and dust-proof explosion-proof (ExdIICT4Gb/tD A21 IP65 T130℃), and can achieve the working level of explosion-proof M5. The rated lifting capacity of the electric hoist can reach 30t. We also provide classic explosion-proof hoist.

The motor is an explosion-proof variable frequency electromagnetic brake three-phase asynchronous motor. The speed of the motor is smooth and impact-free, with large overload capacity and high mechanical strength. It is especially suitable for short-term or intermittent operation, frequent starting and braking equipment. The standard insulation class of the motor is F, and the protection class is IP65.

The hoist reducer is with a fully enclosed hard tooth surface. The gear is carburized and quenched, the tooth surface hardness can reach 58-62HRC, the load capacity is high, and the working noise is low. The reducer case cover has high strength and good performance. The reducer has a second brake interface, which can meet user requirements to a greater extent.
Features
Excellent explosion-proof performance
Adopting the internationally advanced explosion-proof design, key electrical and mechanical components are specially explosion-proofed to effectively eliminate the risk of explosion caused by electric sparks and high temperature, ensuring absolute safety in high-risk environments such as petroleum, chemical, and coal mines.
Strong and stable load capacity
The rated load ranges from 0.5 tons to 20 tons. It adopts high-strength materials and precision transmission structure, operates smoothly and brakes reliably, which can meet the heavy-load requirements under different working conditions, especially suitable for harsh industrial scenes with frequent lifting.
Durable protection design
The shell protection level is above IP55, and the key parts are made of spark-free materials (such as copper alloy) and anti-corrosion treatment, which effectively resists the erosion of dust, moisture and corrosive gases, significantly prolongs the service life of the equipment and reduces maintenance costs.
Intelligent safety and convenient operation
Equipped with overload protection, dual limit switches and emergency braking functions, it supports flashlight, remote control and automated integrated control, and is flexible and efficient to operate. The modular design simplifies the maintenance process, while strictly regulating the management of explosion-proof structures to ensure long-term stable operation.
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Parameter
Lifting Capacity t 3 5 10 16 20 32 50
Lifting Height m no more than 24
Lifting Speed m/min 4/0.67 5/0.8 3.3/0.5 4/0.67 2.7/0.4
Traveling Speed m/min 2-20
 
Load Nominal load spectrum coefficient Use Rating
T0 T1 T2 T3 T4 T5 T6 T7 T8 T9
L1 - light 0.125 Km M1 M3 M3 M4 M5 M6 M7 M8
L2 - medium 0.25 Km M1 M2 M3 M4 M5 M6 M7 M8
L3 - heavy 0.50 Km M1 M2 M3 M4 M5 M6 M7 M8
L3 – Ex. heavy 1.00 Km M2 M3 M4 M5 M6 M7 M8
Application
NR explosion-proof hoist (explosion-proof electric hoist or explosion-proof hand chain hoist) is a lifting equipment designed for flammable and explosive environments. Its explosion-proof performance meets national or international explosion-proof standards and is widely used in places where explosive gases, dust and other dangerous media exist. The following are its main application areas: petrochemical industry, coal mines and underground operations, pharmaceutical and food industries, aerospace and military industries, etc.
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