MINING VENTILATION FANS / MINING FANS
Main/Surface Ventilation Fans, Booster Fans and Auxiliary Ventilation fans
Mining ventilation fans are crucial to the mine,
Mining ventilation fans are crucial components of any mine ventilation system, which typically consists of shafting, ducting, and a strategically designed combination of fans. Proper mine ventilation is essential for the safety, health, and productivity of underground mining operations.
Mining ventilation fans serve multiple critical functions:
They supply adequate oxygen to the workforce.
They dilute and remove hazardous gases generated underground.
They help extract smoke and exhaust from diesel-operated machinery and equipment used in the mine.
Without proper underground ventilation, workers may face serious health issues, reduced efficiency, and increased risk of accidents. For these reasons, mine ventilation systems are regulated by stringent laws in most countries.
Maya Fan Air Engineering has been a trusted manufacturer of mining ventilation fans for decades, addressing the evolving needs of the mining industry. We focus on optimizing energy consumption and have developed a special low-noise fan series that reduces operational noise by up to 10 dB compared to conventional models.
With Maya Fans, you receive uncompromising quality, performance, and reliability—all at a surprisingly competitive price.
Our mining fan solutions are categorized into:
Main Mine Ventilation Fans
Booster Fans
Auxiliary Mine Ventilation Fans
Installation
Up to 30% power saving
mm wg Static Pressure capacity
Up to Kw Rating
3 Innovative Mining Ventilation Fans Used in the Mining Industry
Mining ventilation systems rely on different types of fans to ensure safe and efficient airflow within underground operations. At Maya Fans, we specialize in engineering high-performance solutions across all key ventilation categories. The three innovative mining ventilation fans commonly used include:
Main Fans
Main Mine Ventilation Fans
The main mine ventilation fan is a Large fan or combination of fans. It generates flow for total air requirements in an underground mine.
It ventilates the Main circuit of mine. So, it is term as “Main mine ventilation fans”. It is also known as a surface fan because it installed at the surface of the Mine (Not underground).
In an underground ventilation system, this fan is of critical importance. The occupational health and safety of employees working underground depend on it.
This main ventilation fan is so Critical, that in case of its shutdown. The instruction issued to declare emergency close all work and evacuates from mine.
Main mine ventilation fans are the Largest power-consuming equipment in the mine. Considering all these conduction Maya main ventilation fans are –
- Robust design and construction.
- Maintenance-free operation.
- At Maya, we provide remote monitoring of our main mine ventilation fan.
- High-efficient and low operating cost.
- Our Main ventilation fans are low speed and quiet in operation.
Due to the above feature. Our main mine ventilation fans achieve great success within a short time. And having installation in the following mine –
- Coal mine
- Manganese Mine
- Gold Mine
- Zinc Mine
- Hard-rock (metallic) mines ventilation
Auxiliary fans
Auxiliary Mine Ventilation Fans
Most of the auxiliary fans in mines are normal tube axial type fan and the maximum possible efficiency of tube axial fan is far less then aerofoil fans.
Considering the above fact at Maya fan we are manufacturing airfoil bladed auxiliary ventilation fan which is having very high efficiency.
Maya auxiliary mine ventilation fans are a single-stage fan and unlike double stage auxiliary fan in mine, the single-stage fan is much more efficient.
If we consider the same efficiency for single stage and double stage impeller then in double stage case we have to multiply the efficiency of both impeller thus resultant efficiency reduced significantly.
Light in weight as auxiliary ventilation fans operate in small branches of mine thus it is very important to have easy in handling, at Maya we made our auxiliary fan very robust yet so simple and handy that it can be handled in any of complicated location
Maya auxiliary ventilation is available in various material as –
- Anti-static fiber auxiliary ventilation fan for coal mine where aluminum is not allowed.
- Aluminum alloy fans.
- Steel blade for the environment where aluminum is not allowed and FRP is not sustainable like in case of very high tip speed requirement.
Booster Fans
Mine Ventilation Booster Fans
A mine ventilation booster fan is a primary fan that is installed in series with another primary fan.
Without the booster fan operation, the total mine airflow will fall significantly. Booster fans are typically installed as mine develops and primary fan no longer has the pressure or flow capability to service increased resistance of operation.
In this sense, the booster fan operates as an integral and “symbiotic” unit with the original primary fan to provide sufficient total airflow for mine.
Mine booster fans are technically main fans that are installed underground to maintain required airflow by overcoming the mine resistance.
Booster mine ventilation fans can reduce the pressure of the main fan and decrease system leakage and the total required air power.
A mines booster fan is an underground ventilation device installed in the main airstream (intake or return) to handle the quantity of air circulated by one or more working districts. It is installed to operate in series with the main fan and boost the air pressure of ventilation air passing through it.
Provision of additional air quality at strategic locations within the mine and separate from longwall split.
- Increased pressure to drive airflow into working splits-
- Reduction of intake to return pressure differential, out bye of the booster fan location
- Reduction in out bye leakage
- Reduction of main fan airflow requirements for a given in bye performance
- Optimization of power utilization
Key Feature of Maya Mining booster fans
- High efficiency – Latest airfoil
- Optimization for lower operating cost
- Higher safety factor – we prefer to consider the safety factors around 10.
- The robust construction of casing and diffuser.
- maximum utilization of composite material in Maya booster fans.
- compact design for the mine having space restriction for movement and installation.
Advanced CFRP Mining Fans – Lightweight Power, Built to Last
At Maya Fans, our cutting-edge Carbon Fiber Reinforced Polymer (CFRP) mining ventilation fans—also commonly known as carbon fiber fans—are redefining underground airflow standards. These next-generation fans are precision-engineered to deliver high-efficiency performance, even in the most extreme mining environments. Unlike traditional steel or aluminum blades, CFRP fans combine low weight with high mechanical strength, allowing for higher tip speeds, reduced stress on bearings, and significantly lower power consumption.
Thanks to their composite design and aerodynamic profiles, CFRP fans not only improve airflow stability but also contribute to substantial energy savings—often reducing electrical load by up to 35%. Their anti-static and corrosion-resistant construction makes them especially suitable for challenging operations such as coal, uranium, and gold mines where humidity, gas, and dust are constant threats.
Whether used as main ventilation units, booster fans, or auxiliary fans, CFRP models offer an unbeatable combination of durability, performance, and ROI.
Key Features of CFRP Mining Fans:
High Strength-to-Weight Ratio: Up to 5x lighter than metal equivalents, enabling easier installation and less structural stress
High-Speed Capable: Operates at tip speeds of up to 22,000 FPM, ensuring powerful, directed airflow
Energy Efficient: Proven to lower energy usage by up to 35%, reducing operational costs and environmental footprint
Corrosion & UV Resistance: Non-metallic blades resist moisture, chemicals, and degradation—ideal for wet or acidic environments
Low Vibration & Noise: Enhanced aerodynamic blade profiles minimize vibration and cut noise by up to 10 dB
Longer Service Life: Resilient materials lead to 2x longer operational lifespan versus traditional fans
Customizable Designs: Fan geometry is CFD-optimized to meet specific site ventilation demands
Visit Here for more detail on the CFRP fans.
MAYA FAN STRENGHT
CREATIVE IDEAS
AT Maya Fans we always remain creative to deal with the challenges in the field of tailor-made mining fans, so far we have developed fan for up to 400 mm static pressure that to in single-stage fan.
EXCELLENT FEATURES
We are the pioneer to introduce FRP corrosion-resistant fan in this critical application and installed more than 600 fans including all types of underground mining ventilation fans.
FULLY RESPONSIVE
AT Maya Fan We never force-fit our standard existing fans, but remain responsive to input design data and develop new products as and when it required.
MINE VENTILATION FAN DEVELOPMENT PROCESS
Every mine is different and having requirement of a customized fan so we do not Force customer to compromise with the standard available product and remain open for new development, this customized fans development process steps are as below –
FAN DATA COLLECTION
It is must-have accurate data (Fan duty point) for fan development so we do collect data on the field with our technical expertise and high-tech equipment.
FAN DESIGN
We analyze collected data and conclude for a specific design point as well as keep a range of operations in mind while developing a new fan.
VALIDATION
It is must validate each of the design outcomes to decide for the best solution, and we have full modeling and testing facility in the house.
PRODUCTION
Once the final fan design concluded, it is handed over to the production team for the preparation of tooling. To final launch this product
Mining ventilation Fans Key Feature
High Efficient fan impeller.
Low Operating Costs.
Low Operating Noise.
Long Life Construction.
Performance for All Seasons.
Low and cost effective Maintenance.
Zero Downtime with Maya mining fan.
Fast emergency response.
Why choose Maya mining fan?
Low Operating Costs
- Maya High efficient airfoil blade design
- optimization of twist cord and cross-section provide maximum efficiency.
- The involvement of the most advanced composite material reduces turbulence and produces smooth linear airflow.
- Optimum design for the duty point No oversizing of the fan.
Long Life Construction
- Most of the part made of Heavy-duty composite and hot-dip galvanized material which meets the corrosion resistance and equipment life requirements of your most demanding heavy industrial applications while still delivering an outstanding value.
- Lightweight impeller, therefore, increases in the life of all the mechanical components.
- Mining Fans are also available with Series 300 stainless steel as an optional upgrade which comes with a 5-year limited warranty.
- Maya mining Fans are manufactured in ISO-2015 certified facilities, attesting to our commitment to comprehensive quality processes and systems.
Fast emergency response.
- Ready-made fan available.
- The minimum stock of the fan spare is maintained.
- Low manufacturing time because of zero outsourcing.
- An expert team available for fan installation.
Quiet by Design
- the composite blade has a glossy surface finish that offers smooth airflow.
- low tip speed design (Nose are directly proportioned to tip speed).
- No outsourcing full quality control thus achieves minimum tip clearance.
- Special design available for extra low noise fan which can reduce noise up to 10 dba compares to conventional fans.
Performance for All Seasons
The fan is a constant flow machine and to maintain its performance despite critical variation in weather Maya mine ventilation fans are designed for a broad range of operations our fans are having a good amount of reserve margin for both airflow and static pressure fan performance throughout the year in all type of seasons.
Low Maintenance/Less Downtime
- Maya FRP mine ventilation fan is made of high-quality material and robust design.
- Maya design fan for low operating tip speed which increases overall system life and also reduces the chance of failure.
- Unlike the painted fan, we do provide a permanent coating of a gel coat which remain an integral part of the fan blade body and does not get separated due to erosion.
Maya mine ventilation fan construction
Here is the list of Maya mine fan component with a there brief detailing
Fan Blade
Maya mine ventilation fan blade is made of latest airfoil similar to that of airplane wing we do choose most advanced airfoil possible for the fan to provide maximum efficiency by this only we have achieved superior performance which is far ahead in the mine ventilation fan industries, our blade is very robust in construction and designed for 7-10 times of operating load we also provide superior wear resistance material to maintain surface stability for a long period of time which prevent efficiency deterioration. recently we have developed a special series in mining fans in which we are providing state of the art fans in fiber reinforce plastic we are using this superior epoxy material for the blade tip speed of up to 22000 FPM
This FRP material is having some of the very charismatic property it is very much possible to produce any complicated shape with ease thus provide economical solution some of its special features are and listed below –
- High strength at low weight.
- Good impact, fatigue, and Tensile Strength (Ultimate)
- Excellent environmental resistance.
- Excellent chemical and corrosion resistance.
- Good thermal insulation.
- Better life of the entire ventilation fan system due to low assembly weight.
- Low moment of inertia help for the selection of optimum motor and reduce over design due to higher starting torque thus motor operate under a better range of efficiency.
Fan Hub / Boss
Hub used in mine ventilation fans are heavy in construction in this we are using heavy thickness mild steel plate, cast iron, or Aluminum clamp and stainless steel hardware to provide long life we are coating all mild steel parts with heavy thickness of zinc.
Note – Optionally we also provide customize hub/Boss on special demand of the customer, like caste hub boss, Spider Type Fabricated hub, etc.
Taper Locking
in most of our mine ventilation fan hub, we preferred to have a taper locking arrangement and this is provided with several types of different locking arrangements which are proven in the field these taper lockings are mostly made of Cast iron or stainless steel.
Fairing inlet and outlet
these are inbuilt component in mine ventilation fan, as in mining fan pressure remain high and air travel at very velocity therefore even small turbulence harness unnecessary energy so it is very must to have smooth airflow throughout the fan system and well design and construed inlet-outlet fairing contribute significantly, we at Maya fan make these fairing in composite material to provide smooth finish which helps to keep laminar uninterrupted flow through the fan system.
Inlet guide van
It is used to guide inlet air in such a way that it will inter in impeller at a particular angle so that it will have minimum losses for changing the direction of air under fan impeller.
Out Let guide van
Outlet guide vane are used to guide exit air in such a way that it will remain linear to the system with minimum turbulence in it. which will prevent eddies generation and minimize friction of air with the fan casing surface.
Silencer in mining fan
are used to minimize fan sound to a desired acceptable level. these mine ventilation fan silencers are designed to match with the shape of a fan and to have minimum pressure drop in it.
Fabrication of mine ventilation fans
mining fan is having a large component of fabrication starting from its main body to diffuser and many other parts these are required to have a good control there for it is manufactured under closed control of ISO system and are maintained as per Section IX, ASME
Unlock All Feature Of Mining Fan With Our Special Feature Presentation.
FEW OF OUR PRESTIGIOUS MINING FANS CUSTOMER
❓ Frequently Asked Questions – Mine Ventilation Fans
What is a mine ventilation fan and why is it essential?
A mine ventilation fan is a mechanical system designed to push fresh air into mine workings and exhaust contaminated air, helping dilute gases like methane, remove dust, control temperature, and supply oxygen to miners
. Effective ventilation is critical to maintain a safe working environment and optimize productivity in underground mines.
Type of mining in which Maya fan having its installation?
Following are the few major categories
- Coal mine ventilation fans.
- Manganese mine ventilation fans.
- Gold Mine ventilation fans.
- Fan for Uranium Mine.
- Fan for Copper mine.
- Underground iron mining fans.
These are not the only list we have the solution for any king of mine exists in mankind.
What are the different types of mining fans?
Mining fans typically fall into three categories:
Main (surface) fans: Large axial or centrifugal units that supply air through primary ventilation circuits.
Booster fans: Intermediate units installed underground to maintain airflow in deep or extended workings.
Auxiliary fans: Smaller fans used for local ventilation—such as in headings or drifts—often installed with ducting systems.
Which is a better axial fan or centrifugal fan in mining?
Airfoil axial fan is having maximum efficiency in fan industries and following are the brief difference between axial and centrifugal fans –
The axial fan is superior to deliver high airflow.
It required less power for similar operations compare to the radial fan.
It is compact in construction.
It is lightweight and simple in construction.
An axial fan is less expensive.
we can conclude axial fan is a better choice for mining ventilation.
Axial vs. centrifugal fans – which one is better for mining?
- Axial fans are optimal for high-volume, low-pressure circuits typical in surface or auxiliary ventilation.
- Ultimately, the right choice depends on airflow requirements, duct length, depth, and pressure conditions in the mine.
Underground coal mine ventilation fans type and selection !
In underground coal mining, various hazardous gases emit and many of them are explosive and it is been derived from many mining accidents that high energy impacts of aluminum on rusty steel can cause a spark. Therefore aluminum bladed fans are banned in underground coal mining.
Coal mine ventilation use all three type of fan Main/Surface fan, Auxiliary ventilation, and booster fan.
So while selecting any of coal mine ventilation fans it should be taken care that underground fan should not have aluminum blade whereas for a surface fan it can be used.
What key parameters should be considered when selecting a mining fan?
Choose fans based on several critical factors:
- Airflow rate (m³/s) and static pressure (mm wg)
- Gas content, such as methane or CO₂, and dust levels.
- Temperature, altitude, and relative humidity.
- Explosion-proof certifications for use in hazardous atmospheres.
These ensure compliance with safety norms and long-term reliability.
How can mine ventilation be optimized for energy efficiency?
Energy savings can be achieved by:
- Installing variable frequency drives (VFDs) for speed regulation.
- Utilizing modular or on-demand systems (like Minetek’s POD) that adjust airflow in real-time.
- Ensuring proper duct design, sealing, and pressure monitoring to reduce losses
These methods can cut power consumption by up to 50%.
What is the parameter required to inquire for customized mining fans?
Following are the various parameter requirement for customized mining fan solution –
- The requirement of airflow.
- System pressure / Static pressure.
- Air density.
- Operating temperature.
- Diameter restriction if any !
- Installation Type (Forced draft or the induced draft)
- Reverse rotation requirement.
What safety standards apply to mine ventilation fans?
Mining fans must adhere to safety protocols, especially in coal and gassy mines:
Must be explosion-proof and certified under relevant standards.
Equipments should not generate ignition sources (hot surfaces, sparks)
Backup systems like plenum chambers, generators, or automatic fire suppression are essential
What is the alternative of the aluminum blade in underground coal mining?
In general, steel is considered the only replacement for underground mining ventilation fans blade and by this either we need to compromise with less efficient propeller type fan or need to pay a high cost for CNC machined steel blade.
So at Maya, we have developed a series of auxiliary and booster fan in anti-static fiber which offers excellent efficiency and competitive in cost.
What's the difference between primary, secondary, and auxiliary ventilation systems?
Primary (main) systems move large volumes of air through the main mine circuit using surface fans.
Secondary (booster) systems support long underground circuits where airflow pressure needs reinforcement.
Auxiliary systems serve localized areas such as stopping faces or development headings .
How often should ventilation fans be maintained?
Routine maintenance is vital for safe operation:
Install vibration and bearing monitors to detect failures early.
Replace or clean dampers, ducting, silencers, and fan blades regularly.
Perform periodic risk assessments to update safety and system plans.
What external resources can help me learn more about mining ventilation systems?
For in-depth technical and practical knowledge, here are some reliable, non-competitor sources:
Wikipedia – Underground Mine Ventilation offers a detailed overview of ventilation principles, fan systems, airflow dynamics, and safety regulations used in mining worldwide.
MiningDoc.Tech – Fan Specification & Evaluation provides a technical guide for selecting and evaluating ventilation fans, authored by industry experts including Stachulak & Mackinnon.
NSW Resources – Technical Reference Guide (TRG) outlines best practices and regulatory standards for the safe design and operation of main, booster, and auxiliary fans in coal mines.
Cornett’s Corner – Mining Safety Resources regularly publishes mining-related safety documents, whitepapers, and insights relevant to mine ventilation and underground hazards.