The Mine Auxiliary Ventilation Fan is designed for local and auxiliary ventilation in underground mines, including coal mines, metal mines and underground development projects.
The fan is typically installed near a mine heading or working area and connected to a flexible ventilation duct to deliver fresh air over long distances.
With an axial-flow configuration and compact construction, the JK / DJK series is suitable for mine heading ventilation, underground tunnel ventilation, local working-area ventilation and auxiliary mine ventilation systems.
Depending on the actual mining environment, the fan can be configured with industrial, mining-duty or flameproof electrical equipment.
The JK / DJK fan operates as an auxiliary forcing ventilation fan.
Typical ventilation arrangement:
Fresh Air → JK / DJK Fan → Flexible Ventilation Duct → Mine Heading / Working Face
The fan pressurizes fresh air and delivers it through the ventilation duct to the underground working area.
For long-distance ventilation, fan selection should consider airflow, pressure loss, duct diameter, duct length and duct leakage.
The JK / DJK Series is suitable for:
Underground Mine Heading Ventilation
Mine Development Tunnels
Coal Mine Roadways
Metal Mine Tunnels
Mine Heading Faces
Underground Working Areas
Local Mine Ventilation Stations
Long-Distance Duct Ventilation
Underground Construction Tunnels
Mine Auxiliary Ventilation Systems
Temporary Underground Ventilation
Tunnel Excavation Areas
| Parameter | Typical Range / Configuration |
|---|---|
| Product Type | Mine Auxiliary Ventilation Fan |
| Series | JK / DJK |
| Fan Type | Axial Flow |
| Airflow | 100–2,000 m³/min |
| Pressure | 500–6,000 Pa |
| Fan Diameter | 300–1,200 mm |
| Motor Power | 2.2–110 kW |
| Speed | 1,450–2,900 rpm |
| Drive | Direct Drive |
| Motor | Industrial / Mining / Flameproof Configuration |
| Impeller | Axial Flow |
| Casing | Carbon Steel / Customized |
| Blade Material | Steel / Aluminum Alloy / Customized |
| Airflow Mode | Forcing / Local Ventilation |
| Installation | Horizontal / Customized |
| Duty | Continuous Operation |
| Duct Connection | Flexible Ventilation Duct |
| Application | Underground Mines / Tunnels |
The above values are typical engineering reference ranges. Final airflow, pressure and equipment configuration should be selected according to the actual mine ventilation system, duct diameter, duct length and operating conditions.
Designed specifically for localized underground ventilation, including mine headings, development tunnels and working faces.
The axial-flow impeller provides an efficient airflow path and a compact fan arrangement suitable for underground applications.
The fan can be integrated with flexible ventilation ducts for long-distance air delivery.
The compact configuration simplifies installation where underground space is limited.
The fan can be engineered for continuous operation with appropriately selected motors, impellers, bearings and casing components.
Industrial, mining-duty or flameproof motor configurations can be considered according to the application environment and project requirements.
Airflow, pressure, fan diameter, motor power, voltage, frequency, materials and electrical configuration can be customized.
For an overseas website, JK / DJK fans can be placed under:
Mining Axial Fans → Mine Auxiliary Ventilation Fans
Recommended product pages include:
| Product | Recommended Website Name | Main Application |
|---|---|---|
| JK Series | JK Series Mine Auxiliary Ventilation Fan | Local / Auxiliary Mine Ventilation |
| DJK Series | DJK Series Mine Auxiliary Ventilation Fan | Underground Local Ventilation |
| JK / DJK | Mine Local Ventilation Fan | Heading / Tunnel Ventilation |
Where the specific configuration has a certified flameproof design, the product can also be marketed as:
JK / DJK Flameproof Mine Auxiliary Ventilation Fan
or
Explosion-Proof Mine Local Ventilation Fan
For proper fan selection, customers should provide:
Required Airflow
Required Pressure
Ventilation Duct Diameter
Duct Length
Duct Leakage Conditions
Heading Distance
Mine Type
Gas Conditions
Dust Conditions
Motor Voltage
Frequency
Explosion Protection Requirements
Ambient Temperature
Available Installation Space
The key parameters for auxiliary ventilation selection are generally airflow, pressure, duct diameter and duct length.
JK / DJK fans are normally installed in a fresh-air area and connected to a flexible ventilation duct leading toward the underground working face.
During installation:
Keep the air inlet unobstructed.
Securely connect the fan to the ventilation duct.
Avoid excessive duct bending.
Minimize unnecessary duct leakage.
Verify the impeller rotation direction.
Check motor and electrical connections.
Ensure reliable grounding.
Check bearing lubrication.
Prevent foreign objects from entering the impeller.
During operation, airflow, pressure, motor current, bearing temperature, vibration and noise should be monitored.
For coal mines or other environments containing potentially combustible gases or dust, the required flameproof equipment, electrical configuration and certification should be determined according to the actual hazardous area and applicable local mining regulations.
EMS provides:
Auxiliary Fan Selection
Airflow and Pressure Matching
Fan Performance Data
Technical Drawings
Motor Selection
Flameproof Configuration
Flexible Duct Matching
Customized Fan Design
Export Packaging
Technical Documentation
Overseas Project Support