1. Product Real-World Photo Analysis

The core drive component of the entire machine is a vane-type pneumatic motor from Shanghai Ellem, featuring a flange-centered mounting structure.

Operating principle: In workshops or underground mines, compressed air at 6.2 bar is fed into the motor’s pipeline. The high-pressure gas drives the vane motor to rotate at high speed, with a free-speed reaching up to 5,000 RPM and delivering a powerful output of 7 kW to spin the fan blades, continuously generating a stable, large airflow for forced ventilation and air exchange in mine tunnels, subways, and explosion-proof workshops, thus achieving air circulation.

2. Core Parameters Table

3. Product Advantages

① Purely pneumatic and explosion-proof—designed specifically for high-risk underground environments

With no motor, no power cords, and no electrical sparks, it ensures safety and compliance in gas- and dust-prone mining scenarios, completely eliminating the risk of electrical explosions. It is the preferred power solution for underground ventilation equipment.

② 7 kW of high power combined with 5,000 RPM for strong air delivery

A standard 6.2-bar air supply can deliver 7 kW of power, driving the fan blades at an ultra-high speed of 5,000 RPM, providing sufficient wind pressure and large airflow to quickly replace stale air over long distances, effectively alleviating oxygen deficiency and dust accumulation underground.

③ Vane-type pneumatic motor withstands harsh operating conditions

The vane motor is resistant to moisture, mine dust, and humid environments, allowing continuous long-term operation even in flooded or highly humid underground settings without damage. Compared to electric fans, it has lower waterproofing and dustproofing requirements, significantly reducing the failure rate.

④ Adjustable air pressure for controllable airflow—prevents motor burnout

By simply adjusting the air pressure, you can freely control the motor speed and regulate the airflow. Overload or jamming will not cause motor damage, ensuring stable and durable performance during prolonged continuous operation. Maintenance only requires periodic cleaning of the air filter element.

4. Core Application Scenarios

1. Underground Mining Operations: Ventilation for coal mines and metal mine tunnels, exhausting gas and dust while supplying fresh air;

2. Tunnel Construction Projects: Forced ventilation and air exchange during subway and mountain tunnel excavation;

3. Explosion-Proof Chemical Workshops: Air circulation in paint, oil-gas, and dust-proof factories;

4. Ventilation of Enclosed Tanks/Storage Tanks: Internal ventilation and air replacement in pressure vessels and large storage tanks;

5. Competitor Comparison