Universal electric hoist
Pneumatic Air Chain Hoist for Explosion-Proof Environments
Product Overview
The Weiyuan Pneumatic Air Chain Hoist is a high-performance lifting solution specifically engineered for safety and reliability in hazardous and explosion-proof environments. Powered by compressed air, this hoist eliminates the risk of electric sparks, making it the ideal choice for industries such as petroleum, chemical processing, offshore oil platforms, and mining. With a versatile lifting capacity ranging from 0.1 to 10 tons, our air chain hoist provides precise, variable-speed control for delicate operations while ensuring robust performance for heavy-duty lifting tasks.
Product Advantages
Inherently Explosion-Proof
The hoist operates entirely on compressed air, making it intrinsically safe for use in high-risk areas with flammable gases, dust, or volatile substances. It is a critical safety component for industries where electrical equipment is prohibited.
Precision and Variable Speed Control
Unlike standard electric hoists, the pneumatic motor allows for infinitely variable speed control. This enables operators to lift, lower, and position loads with exceptional precision and smoothness, which is crucial for handling sensitive or expensive equipment.
High Durability and Low Maintenance
Designed for continuous operation, the air motor is self-cooling and resistant to overheating, ensuring a long service life even under demanding duty cycles. With fewer internal components than electric hoists, it requires minimal maintenance, reducing downtime and operational costs.
Robust in Harsh Conditions
The sealed body and simple mechanics make the hoist highly resistant to dust, moisture, and corrosive atmospheres. This durability ensures reliable performance in the toughest industrial settings, from chemical plants to offshore rigs.
Compact and Lightweight Design
Despite its powerful lifting capabilities, the Weiyuan Pneumatic Air Chain Hoist features a compact and lightweight design. This makes it easy to install, move, and integrate into various crane systems, including monorails and jib cranes, especially in areas with limited space.
Application Scenarios
Oil and Gas Industry
Essential for maintenance and material handling on offshore platforms, refineries, and pipelines where explosive atmospheres are a constant concern. Its spark-resistant nature ensures maximum safety.
Chemical Manufacturing Plants
Safely lifts and transports chemicals, raw materials, and equipment in environments with corrosive and flammable substances, preventing ignition risks.
Mining and Tunneling Operations
Provides reliable and safe lifting power in underground mines where methane gas and coal dust can create explosive conditions. Its rugged design withstands the harsh mining environment.
Paint Shops and Coating Facilities
Ideal for use in spray booths and finishing lines where solvent fumes are present. The pneumatic design eliminates the risk of igniting flammable vapors during lifting operations.
Product Specifications and Dimensions
| Specification | Parameters |
|---|---|
| Lifting Capacity | 0.1t – 30t (customizable) |
| Standard Lifting Height | 3m – 30m (customizable) |
| Working Medium | Compressed Air |
| Working Pressure | 0.4 – 0.6 MPa |
| Lifting Speed | Variable (up to 60 m/min, depending on model) |
| Sling Type | High-Strength Alloy Steel Chain |
| Control Method | Pendant Handle Control |
| Safety Features | Overload Protection, Disc Brake System |
| Trolley Option | Manual or Pneumatic Trolley |
| Explosion-Proof Grade | Ex d IIB T4 Gb / Ex d IIC T4 Gb |
| Operating Temp. | -10°C to +50°C |
Features at a Glance
✓ Explosion-Proof Operation: Powered by compressed air for safe use in hazardous areas.
✓ Variable Speed Control: Offers precise, smooth handling for delicate and heavy loads.
✓ Wide Capacity Range: Customizable from 0.1 to 30 tons to meet diverse needs.
✓ High-Duty Cycle: Air motor resists overheating, allowing for continuous, heavy use.
✓ Durable Construction: Built to withstand dust, humidity, and corrosive environments.
✓ Low Maintenance: Simple, robust mechanics result in reduced service requirements.
✓ Compact Design: Lightweight and easy to install in space-constrained workstations.
FAQ
Q: Why choose a pneumatic hoist over an electric hoist?
A: Pneumatic hoists are the superior choice for environments where fire or explosion is a risk, as they do not generate sparks. They also offer excellent variable speed control and are highly durable in harsh, dirty, or wet conditions where an electric hoist might fail.
Q: What air pressure is required to operate this hoist?
A: The Weiyuan Pneumatic Air Chain Hoist operates effectively with a standard industrial compressed air supply, typically between 0.4 and 0.6 MPa (megapascals).
Q: Is the lifting speed adjustable?
A: Yes, one of the key advantages of our pneumatic hoist is its infinitely variable speed control. The operator can precisely adjust the lifting and lowering speed using the pendant control, from a slow creep to full speed.
Q: Can this hoist be used for outdoor applications?
A: Absolutely. The sealed design and durable components make it highly resistant to weather, dust, and moisture, making it a reliable choice for outdoor use in shipyards, construction sites, and open-air industrial facilities.
Q: What maintenance does the pneumatic hoist require?
A: Maintenance is minimal. We recommend regular checks of the air filter, regulator, and lubricator (FRL unit) to ensure a clean and lubricated air supply. As a manufacturer with nearly 40 years of experience, Weiyuan provides detailed maintenance guidelines and support to ensure the long-term reliability of your equipment.
