K / DK Series Mine Energy Saving Ventilation Fan is designed for mine ventilation systems, including K40, K45, DK40 and DK45 models.
It can be used as a main fan or auxiliary fan for mines, tunnels, large workshops and underground projects.
The fan supports surface or underground installation, multi-fan combined operation, reversible airflow and adjustable blade angle for changing working conditions.
K / DK Series Mine Energy Saving Ventilation Fan is designed for metal mine ventilation, tunnel ventilation, underground engineering and large industrial air circulation systems. The series includes K40, K45, DK40 and DK45 models.
It can be used as a main fan or auxiliary fan. The fan supports surface or underground installation, multi-fan combined operation, reversible airflow and adjustable blade angle for changing mine ventilation conditions.
Selection Focus
Fan Series
K40 / K45 / DK40 / DK45
Airflow
2.0–164.2 m³/s
Pressure
38–3819 Pa
Power
1.1–500 kW
Installation
Surface / Underground
Designed for Mine Ventilation and Underground Airflow Control
K / DK Series Mine Energy Saving Ventilation Fan is developed for ventilation systems in metal mines, underground projects, tunnels and large enclosed industrial spaces. It is used to provide stable air exchange, improve underground working conditions and support continuous ventilation operation.
K40 and K45 are single-stage mine axial flow fans. DK40 and DK45 are counter-rotating axial flow fans, using two matched fan units with reverse-rotating impellers to obtain higher pressure and better matching with mine ventilation networks.
For mine fan selection, please confirm airflow, pressure, roadway resistance, installation position, power supply and whether reversible airflow is required. Final model selection should be checked according to actual site conditions.
Typical Application Scenarios
01
Mine Main Ventilation
Used as main ventilation equipment for metal mine ventilation stations.
02
Auxiliary Ventilation
Suitable for auxiliary ventilation and multi-stage machine station ventilation systems.
03
Tunnel Ventilation
Can be used for tunnel ventilation and underground construction air exchange.
04
Industrial Ventilation
Applicable to large workshops, civil defense projects and enclosed industrial spaces.
Series Structure and Selection Meaning
Item
Configuration
Selection Meaning
Available Series
K40 / K45 / DK40 / DK45
Different series match different airflow and pressure requirements
Fan Number
No.7–No.26
Selected according to ventilation volume, tunnel resistance and installation space
Fan Structure
Single-stage axial / Counter-rotating axial
K type is single-stage; DK type uses two reverse-rotating impellers
Speed
1450 / 980 / 730 r/min
Different speed options match different fan sizes and operating points
Blade Angle
Adjustable according to model
Allows airflow and pressure adjustment when mine production changes
Reverse Airflow
Available
Useful for mine emergency reverse ventilation requirements
Performance Data
The following data is for preliminary model selection. Final fan selection should be confirmed according to airflow, pressure, mine roadway resistance, installation method, altitude, temperature and power supply.
Series
No.
Speed
r/min
Power
kW
Airflow
m³/s
Pressure
Pa
Application Focus
K40
7
980
1.1
2.0–4.3
38–174
Small mine ventilation
K40
12
1450
37
14.7–32.1
242–1118
Medium airflow
K40
26
730
250
75.4–164.2
288–1330
Large airflow
K45
12
1450
75
22.5–42.3
804–1542
Higher pressure
K45
20
980
250
69.8–132.0
1019–1956
High pressure main fan
DK40
15
980
2×37
18.2–43.6
382–1690
Counter-rotating type
DK40
20
980
2×160
43.2–103.4
680–3004
Large mine station
DK45
12
980
2×22
10.7–27.6
698–1374
High pressure start model
DK45
20
980
2×250
49.5–127.6
1939–3819
High pressure main fan
Note: This table lists typical reference models only. More fan numbers and operating points are available according to project requirements.
Main Features
Energy Saving DesignOptimized aerodynamic blades help improve fan efficiency and reduce long-term operating energy cost.
Stable Working CurveSuitable for stable operation under different mine roadway resistance conditions and multi-fan systems.
Reversible AirflowThe fan can support reverse airflow operation when mine emergency ventilation is required.
Adjustable Blade AngleBlade angle can be adjusted according to airflow demand and mine production changes.
Surface or Underground InstallationThe fan can be arranged for ground installation or underground installation according to project layout.
Model Selection SupportFan model can be selected according to airflow, pressure, mine resistance and power supply.
Information Needed Before Quotation
Required AirflowPlease provide required air volume or mine ventilation capacity.
Pressure RequirementConfirm total pressure, static pressure or mine roadway resistance.
Installation PositionConfirm whether the fan will be installed on the surface or underground.
Power SupplyConfirm voltage, frequency, motor protection requirement and control method.
Get a mine ventilation fan quote
Send: Airflow | Pressure | Mine Type | Installation Position | Power Supply | Quantity
