[email protected] +86 18397234555 Mon - Fri, 9am - 5pm
English
logo

Powering Ventilation, Driving Progress — Ventilation mining fans and mining blowers for underground mines, tunnels, and industrial sites.

Request a Quote Request a Quote
Contact Info

+86 18397234555

[email protected]

No. 001, Nanjiao Town Industrial Park, Zhoucun District, Zibo City, Shandong Province

Mon - Fri, 9am - 5pm

Mining & Industrial Fan Questions & Answers

Q&A on mining and industrial fans – types and application scenarios.

Q

Is a 5-Blade Axial Fan Better Than 3-Blade?

A 5-blade axial fan is not automatically better than a 3-blade fan. In many comfort and domestic applications, five blades are used for smoother, quieter airflow, while in heavy-duty industrial and mi
Q

How does an air tunnel work?

An air tunnel is an underground passage or structure built mainly to move air rather than to carry vehicles or ore. It works by providing a low-resistance path that allows pressure differences, create
Q

What does a fan curve tell you?

A fan curve is one of the most useful tools in ventilation engineering because it tells you, at a glance, how a fan will behave when installed in a real system. Instead of giving only a single rating,
Q

Which Fan Blade Shape Moves More Air in Ventilation?

The fan blade shape that moves more air most efficiently is usually an airfoil profile, but the best blade shape for a ventilation system depends on pressure, dust, noise and cost requirements. In ind
Q

Why do tunnels have exhaust fans?

Tunnels have exhaust fans because enclosed underground spaces cannot rely on natural airflow alone to keep air safe and clear. Exhaust fans are a key part of tunnel ventilation systems. They remove po
Q

Is it better to have your fan higher or lower?

Whether it is better to have your fan higher or lower depends on what you are trying to achieve with the ventilation system. Fan height and position strongly influence how air moves through a room, in
Q

What Is the Typical Lifespan of an Industrial Ventilation Fan?

The typical lifespan of an industrial ventilation fan is often between 10 and 20 years, and sometimes longer, but actual life depends strongly on design, operating conditions and maintenance. In minin
Q

What is the difference between cross ventilation and tunnel ventilation?

The difference between cross ventilation and tunnel ventilation lies in the direction of airflow and how it is generated. Cross ventilation is typically a natural or low-pressure airflow moving across
Q

How to set up proper fan curves?

Knowing how to set up proper fan curves is essential for reliable engineering of industrial and mining ventilation systems. A proper fan curve is not drawn by guesswork; it is based on tested performa
Q

How Long Does a Duct Booster Fan Usually Last?

A duct booster fan typically lasts around 5 to 10 years in normal residential or light industrial use, although actual life can be shorter or longer depending on quality, operating time and maintenanc
Q

What is a tunnel ventilation system?

A tunnel ventilation system is the complete combination of equipment and controls used to manage airflow, air quality and smoke in road, rail, metro and mining tunnels. It includes main supply and exh
Q

Is a higher RPM fan better?

It is tempting to think that a higher RPM fan is always better because it seems more powerful or “faster”. In reality, fan speed is only one part of the design. A higher RPM fan can move more air and

Q

Are Ball Bearing Fans Better Than Sleeve Bearing Fans?

Ball bearing fans are generally better than sleeve bearing fans for heavy-duty industrial and mining ventilation, but they also cost more. The best choice depends on temperature, mounting position, ru
Q

What is the necessity of providing ventilation in tunnels?

Providing ventilation in tunnels is necessary because tunnels are long, enclosed spaces where pollutants and heat can easily accumulate. Unlike open roads or surface railways, tunnels do not have natu
Q

Is 5000 RPM good for a fan?

Whether 5000 RPM is good for a fan depends entirely on the type of fan, its size and its job. For a small electronics cooling fan, 5000 RPM can be perfectly normal. For a large axial or centrifugal fa
Q

What Are the Disadvantages of Sleeve Bearing Fans?

Sleeve bearing fans have several disadvantages compared with ball bearing fans, especially in industrial and mining ventilation where reliability is critical. Understanding these limitations helps you
Q

What is the object of tunnel ventilation is to remove?

The main object of tunnel ventilation is to remove harmful and unwanted contaminants from the air so that people and equipment can use the tunnel safely. A tunnel is a long, enclosed space where air d
Q

What is the best RPM for a fan?

There is no single “best RPM” for a fan that fits every situation. The optimal speed for a fan depends on its diameter, blade design, application and the airflow and pressure your system requires. In

Q

How Can I Tell CW vs CCW Fan Rotation Direction?

To tell whether a fan is rotating clockwise (CW) or counterclockwise (CCW), you must know which side you are looking from and then observe the direction of rotation relative to that viewpoint. In indu
Q

What is the piston effect in tunnel ventilation?

The piston effect in tunnel ventilation is the air movement created when a large vehicle, especially a train, travels through a tunnel and pushes air in front of it while pulling air behind it. In oth
Q

Is 2000 cfm good for a fan?

Whether 2000 CFM is good for a fan depends on what you are trying to ventilate. In some applications, 2000 cubic feet per minute is more than enough; in others, it is far too small. CFM is just a meas
Q

Does Fan Rotation Direction Change Airflow Direction?

Fan rotation direction has a major impact on airflow, but the exact effect depends on whether the fan is axial or centrifugal. In all cases, the fan must rotate in the direction specified by the manuf
Q

What is ventilation in mines?

Ventilation in mines is the engineered movement of air through underground workings to keep conditions safe and workable. It is achieved by using mine ventilation fans, shafts, raises, drifts and cont
Q

Is a 400 rpm fan good?

A 400 RPM fan can be very good, and in many cases it is exactly what engineers want for heavy-duty ventilation. The key is to look at fan speed together with impeller diameter and required duty point.
Q

When Should a Reversible Axial Fan Run in Reverse?

A reversible axial fan should run in reverse only when the ventilation system has been specifically designed to change airflow direction, and the fan itself is rated for bidirectional operation. This

Q

What is ventilation on demand in mining?

Ventilation on demand in mining (often shortened to VOD) is a control strategy that adjusts airflow and fan operation based on real-time needs in different parts of the mine. Instead of running all mi
Q

Is a high velocity fan better?

A high velocity fan is not automatically better; it is simply different. High velocity fans produce strong, focused air streams at higher air speeds, while other fans are designed to move large volume
Q

Is Metal Housing Better Than FRP for Ventilation Fans?

Metal housing is not always better than FRP (fiber-reinforced plastic) for ventilation fans; the best choice depends on environment, temperature, corrosion and mechanical loads. In many industrial pla
Q

What is ventilation underground?

Ventilation underground is the planned movement of air through enclosed underground spaces such as mines, tunnels, caverns and underground plants. Because these spaces are surrounded by rock and soil,
Q

How to speed the fan?

When people ask how to speed the fan, they usually want more airflow or pressure from an existing industrial or mining ventilation fan. It is possible to increase fan speed, but it must be done carefu

Still have questions?

Our engineers are ready to provide custom calculations and solutions for your project.

Contact Us Contact Us