Pola eléctrica a prueba de explosión

The explosion proof electric hoist produced by Weihua Group has passed the international ATEX/IECEx explosion proof certification and is specially designed for Zone 1/Zone 2 hazardous areas, providing absolute safe operation guarantee with zero sparks and low surface temperature. Explosion proof electric hoists are often used in hazardous areas where flammable and explosive gases/dust exist, such as petrochemical industry, natural gas mining, mining operations, and pharmaceutical workshops. Since sparks or high temperatures from ordinary electric hoists may cause catastrophic accidents, explosion proof electric hoists are required.

pola eléctrica a prueba de explosión

Core advantages of explosion proof electric hoist

Military-grade explosion proof design to eliminate potential safety hazards

• Fully enclosed explosion-proof motor: The explosion proof electric hoist adopts a cast aluminum alloy shell + copper heat dissipation structure. It has passed ATEX/IECEx international certification and is suitable for Zone 1/Zone 2 hazardous areas to ensure that the motor runs without sparks and has a low surface temperature (≤135°C).
• Dual redundant safety system: freno electromagnético + mechanical brake double insurance, self-locking instantly when power is cut off, eliminating the risk of falling; apagado automático cuando se sobrecarga 110% to avoid accidents.
• Anti-static components: The explosion proof electric hoist is equipped with anti-static wire ropes and non-metal pulleys as standard to eliminate the hidden danger of frictional discharge and is especially suitable for dust explosion environments (such as flour mills and lithium battery workshops).

Intelligent control, precise and efficient

• Frequency conversion stepless speed regulation: 0.1-10m/min stepless speed adjustment, achieving millimeter-level precise positioning, especially suitable for precision equipment installation or dangerous goods transportation.
• Polipasto eléctrico con control remoto: 50-meter explosion proof remote control (Ex ia IIC T4 certification), keeping operators away from dangerous areas and reducing personal safety risks.
• Real-time status monitoring: Integrated LED display screen provides real-time feedback of load weight, altura de elevación, motor temperature and fault codes, and supports Internet of Things remote monitoring (opcional).

Extreme environmental adaptability and durability

• Wide temperature range operation: stable operation in -40℃ extreme cold to +60℃ high temperature environment, equipped with a low-temperature start module to ensure normal use in severely cold areas (such as Arctic oil fields).
• Super corrosion resistance: The explosion proof electric hoist shell is coated with epoxy resin (salt spray resistance 2000 horas), and all stainless steel materials are optional, which can easily cope with chemical corrosive gases or marine high-humidity environments.
• Diseño modular: The explosion proof electric hoist is compatible with various installation methods such as I-beam, KBK track, single-girder bridge, etc.. It supports non-standard customization and adapts to the needs of complex working conditions.

pola eléctrica a prueba de explosión

Explosion proof electric hoist parameters

Basic parameters of explosion proof electric hoist

Project	Parameter range
Capacity	0.5 montones, 1 tonelada, 2 montones, 3 montones, 5 montones, 10 montones, 30 montones, 50 montones, 100 montones (La personalización es compatible)
Altura de elevación	3m~30m (estándar), can be customized to 100m
Velocidad de elevación	Velocidad única: 8m/mi; double speed: 8/0.8m/mi; Regulación de velocidad de frecuencia variable: 0.1-10m/mi
Travelling Speed	10-20m/mi (ground hand push) / 20-30m/mi (electric operation)
Duty Class	FEM 1Am ~ 2m / ISO M3 ~ M5
Fuente de alimentación	380V/50Hz AC trifásico (optional 220V/60Hz)

Explosion-proof key parameters

Explosion-proof certification

• International standards: ATEX II 2G Ex db IIC T4 Gb / II 2D Ex tb IIIC T135°C Db
• Gas group: IIC level (applicable to high-risk gases such as hydrogen and acetylene)
• Temperature group: T4 (surface temperature ≤135℃) / T5 (≤100℃) / T6 (≤85℃) opcional
• Nivel de protección: IP65 (dust-proof and waterproof) / IP66 (high-pressure water jet protection)

Explosion-proof component configuration

• Motor type: fully enclosed explosion-proof asynchronous motor (insulation grade F, temperature rise ≤80K)
• Sistema de frenado: dual redundant electromagnetic brakes (explosion-proof coil voltage 24V DC)
• Electrical box: Ex d flameproof shell, made of stainless steel, impact resistance ≥7J
• Método de control: Intrinsically safe (Ex ia IIC T4) polipasto eléctrico con control remoto/explosion-proof control handle

Safety redundant design

• Protección contra sobrecarga: automatic power off at 110% carga nominal
• Limit switch: dual mechanical + electronic limit
• Emergency descent: manual release device (estándar)

pola eléctrica a prueba de explosión

Explosion proof electric hoist structure and materials

Part	Especificaciones técnicas
wire rope	Anti-rotation type 6×36WS+IWR, galvanized/stainless steel (anti-corrosion option)
Gancho	Forged from alloy steel, safety tongue + rotation lock, load tested at 1.25 veces
Track adaptation	I-beam (160~400mm belly width)/KBK light track/customized steel
Shell coating	Epoxy resin powder coating (thickness ≥120μm), salt spray resistance 2000h

What are the applications of explosion proof electric hoists?

Industry	Application cases	Explosion-proof requirements
Petrochemical industry	Refinery reactor hoisting and tank area equipment maintenance	Protection against Class IIA/IIB/IIC gas explosions
Underground coal mine	Installation of shearer components and improvement of ventilation equipment	Methane gas + dust double explosion-proof
Grain processing	Flour silo conveying system, starch production line hoisting	Dust explosion protection (ST3 level)
Aerospace	Rocket fuel storage tank handling, hangar maintenance equipment lifting	Anti-hydrogen/kerosene aerosol explosion
New energy manufacturing	Lithium battery electrode material handling, hydrogen energy battery pack assembly	Anti-metal dust + hydrogen mixed explosion risk

pola eléctrica a prueba de explosión

Explosion proof electric hoist manufacturing process

Explosion proof electric hoist manufacturer

Why do the world’s top 500 companies trust us?

• 1. More than 30 years of deep experience in the field of explosion protection: Weihua explosion proof electric hoists have provided safe lifting solutions for more than 2,000 high-risk scenes, with zero accident rate.
• 2. 100% compliance certification: The product has passed ATEX, IECEx, UL and China CNEX certification, and can be used globally without worries.
• 3. Green and intelligent manufacturing: The explosion proof electric hoist uses energy-saving motors and recyclable materials, which reduce energy consumption by 35% compared with traditional equipment, helping to achieve the goal of carbon neutrality.

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