Explosion-proof Electric Wire Rope Hoist

Key Features

1. Explosion-Proof Design

This explosion-proof electric wire rope hoist is built for use in hazardous environments where flammable gases may be present. It carries an explosion-proof rating of Exd II BT4 or Exd II CT4, which makes it suitable for gas mixtures in temperature groups T1 to T4. All exposed parts are made from special non-sparking materials to reduce ignition risks during operation. The motor, control box, and control buttons are designed as independent flameproof units, which helps isolate any potential sparks inside sealed enclosures.

2. Versatility and Customization

This hoist is designed to adapt to different working needs, giving you flexibility in many applications. It offers lifting capacities from 0.25 tons up to 16 tons, so you can select the right model based on your load requirements. The lifting height can be adjusted from 1 meter to 120 meters, which makes it suitable for both low and high lifting tasks. With an M3 working class rating, it performs well in light to medium-duty operations that require consistent use without excessive wear. You can choose between stationary or trolley-mounted configurations, and it works smoothly on I-beam tracks. It can also be adapted for both straight and curved paths, which helps you fit the hoist into your existing workshop layout without major changes.

3. Compact and Reliable Construction

The hoist features a compact and practical design that makes installation simple, even in spaces where room is limited. Its lightweight structure helps reduce the load on supporting beams, which can lower your installation costs. The use of highly universal components means many parts are interchangeable, so maintenance becomes easier and faster when service is needed. Key components like gears and shafts are made from high-strength alloy steel, which improves durability and extends the working life of the equipment. This solid construction ensures stable performance over time, even in tough industrial environments where reliability is critical.

Applications

The Explosion-Proof Wire Rope Hoist is designed for hazardous environments where safety is paramount. When there are flammable gases or explosive mixture of vapour and air as shown in the below table (table 1), the explosion-proof electric hoists can be installed on I-beam for lifting and for reciprocating liner or curvilinear movements in a safe manner.

1. Petrochemical Industry

In petrochemical plants and refineries, lifting equipment must operate safely around volatile chemicals and gases. This hoist helps you move heavy equipment, pipes, and containers without increasing the risk of sparks or heat buildup. Its explosion-proof design reduces hazards during daily operations and maintenance tasks, making it a reliable choice for handling sensitive materials.

2. Gas and Oil Industry

For oil and gas operations, especially on offshore platforms and in processing facilities, equipment must perform under harsh and potentially explosive conditions. This hoist provides stable lifting for machinery, tools, and components while meeting strict safety requirements.

3. Manufacturing

In factories that handle flammable liquids, dust, or gases, safe material handling is essential. This hoist allows you to lift and transport materials without exposing your operation to unnecessary risk. It supports efficient workflow while helping you maintain a safer production environment.

4. Mining

Mining operations often involve underground areas where explosive gases like methane may exist. This hoist is designed to work safely in such conditions, supporting lifting tasks for equipment and materials. It helps improve efficiency while keeping safety under control in confined and hazardous spaces.

This hoist is suitable for both Type I and Type II environments, with specific applications including coal mines (Type I) and other hazardous industrial settings (Type II).

Advanced Safety Features

1. Overload Protection
   Prevents the hoist from operating beyond its rated capacity, ensuring operator and equipment safety.

2. Fire Stopper Limit Device
   Explosion-proof limit devices safeguard against over-lifting or lowering.

3. Emergency Stop System
   A manual cutoff mechanism halts operations during critical conditions.

4. Explosion-Proof Electrical Components

   • Explosion-proof electric control box and control board.
   • All wiring is insulated and grounded for enhanced safety.

5. Non-Spark Design

   • Hooks and stop blocks are constructed with stainless steel or bronze.
   • Gear reducers are lubricated with machine oil to prevent high-temperature sparks.

6. Temperature and Voltage Tolerance
   Operates reliably within a wide temperature range and withstands power fluctuations.

Main Components and Design

The design of an Explosion-proof Electric Wire Rope Hoist focuses on safety, durability, and stable performance in hazardous environments. Every key component is carefully selected and built to prevent sparks, reduce heat, and ensure reliable lifting.

1. Lifting Mechanism

The lifting mechanism is the core of the hoist, and it directly affects lifting performance and safety. The explosion-proof motor uses a fully enclosed tapered rotor asynchronous design, which helps prevent external gases or dust from entering the motor housing. With IP44 or IP55 protection, it can handle dust and moisture in tough working conditions. The cylindrical gear reducer works together with anti-friction bearings to deliver smooth and efficient power transmission. This setup reduces vibration and noise, while also extending the service life of the equipment.

2. Hook Assembly

Safety is the primary consideration in the design of the hook assembly. You may handle large or valuable objects with greater confidence because the cardboard-like structure guarantees that the hook won't unintentionally come loose during lifting. Stainless steel, which provides exceptional strength and resistance to corrosion, is used to make the hook heads. You can count on reliable performance and lower operating risk with this design.

3. Traveling Mechanism

The hoist can move smoothly along the beam or track thanks to the moving mechanism. It has a moving motor that is explosion-proof and made specifically for dangerous situations. This motor guarantees steady, safe motion without producing sparks. You have more versatility in various workshop layouts thanks to the wheels' thoughtful design that allows them to adjust to both straight and curved tracks.

4. Electric Equipment

The electric system plays a key role in maintaining safe operation. Explosion-proof control panels and limit switches are used to prevent electrical sparks and ensure precise control of lifting and traveling motions. These components are sealed and protected to meet strict safety standards. The wire ropes are insulated and coated with grease, which helps reduce friction and prevents sparking during operation. This not only improves safety but also extends the lifespan of the wire rope. With a reliable electrical system, you can operate the hoist with confidence, even in demanding environments.

Benefits of Choosing Yuantai Explosion-Proof Hoists

• Certified Safety:
  Meets stringent safety standards, including GB3836-2000 compliance.
• Durability:
  High-quality materials ensure a long operational lifespan.
• Customizable Options:
  Tailored configurations for diverse industrial applications.
• Energy Efficiency:
  Optimized motors reduce energy consumption while maintaining performance.

Technical Parameters

How to get quotation?

Send us your RFQ including the parameters above, we will reply our quotation accordingly.