FEEL THE NORDIC WINDSpecialized in underground ventilation with a history all the way back to 1890, EOL Ventsystem offers you leading solutions for your mine.

Our products are produced in Sweden by a market leading provider of heavy fan solutions for mining and industrial customers, among other solutions.

standard capacity is up to 125m³/s or 4200 Pa per stage.

PerformanceA right designed ventilation system can reduce energy consumption and increase production. EOL Ventsystem has the knowledge and products for a high-performance ventilation system for all possible Mining and Tunnelling situations. Our fans go through exten-sive testing according to several ISO standards, in the state-of-the-art labo-ratories at Akron, who has one of the largest pressure chambers in Europe.

Designed for long lifetimesThe dimensions of EOL Ventsystem can be adjusted to fit your specific needs. One advantage of our prod-ucts is that we use aluminium alloy hubs and blades, for longer life time expectancy on the motor-bearings. Our fans are hot dip galvanized, and normal range is between Ø500 to Ø2000 mm diameter, with variable hub diameters and motor sizes up to 450 kW per stage.

All fans can be delivered as multi stage fans, and they are constructed from a modern module system based on pressure and volume demand. The

EOL Ventsystem – Your partnerEOL Ventsystem is specially designed for underground ventilation, and offers a complete ventilation system along with expertise for the correct calcula-tions and design of suitable ventilation equipment. Our goal is to be a partner

for our customers. EOL Ventsystem supplies system design, axial fans, dampers, silencers, diffusers, VFD’s and differential pressure doors. We also supply Trolex gas sensors and Accutron flow meters. Together with our designers we often custom-make solutions to fit for your purposes.

The company has been involved in Mining and Tunnelling operations for more than 100 years and offers well-designed products and compe-tence for this demanding industry. The AKRON factory where our products are made, is located in Sweden about 100 km northeast of Gothenburg.

References EOL Ventsystem is the main supplier of mining fans to LKAB, which has the world largest underground iron ore mine. More than 1000 fans have been delivered over the last 10 years.

Europe and Asia are the main markets for Tunnelling Projects. The fan to the right, one of four 1800mm 2-staged fans, delivered 2013 to Røssåga tunnel project in Norway, for the Norwegian contractor LNS AS. It was in Røssåga 2015, where LNS for the first time in Norway for 22 years, finalized a 7,6km long tunnel using TBM method.

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A safe and flexible passageOur underground Swivel Mandoor is made for high differen-tial pressure applications.

Since the shaft is in the center of the door and the door swivels around the shaft, the door is not sensitive to high differential pressures. The robust frame of the Swivel Man-door is painted while the door itself is made of galvanized sheet metal.

It’s ideal to place the Swivel Mandoor towards a ventila-tion shaft or beside a large door. Installation is easy since the Swivel Mandoor comes ready assembled.

Ex. 2-stage EVS 140-56-06-2x90kW

1. Guard – Guard with different sizes of

mesh for different applications.

2. Inlet cone/Bell mouth – Inlet diameter

and length as per customer request.

3. EVS Silencer – Modern design silencer

with or without center pod. The silencer

is galvanized and has a welded frame be-

tween tha flanges making it a very rugged

construction.

4. EVS Fans – High efficiency impeller

with adjustable pitch angle. Fan casing is

galvanized and has a sturdy construction

with guide vanes specially designed for

underground use.

5. Diffuser – The outlet diameter is manufac-

tured at standard duct diamters. To reduce

the fan outlet losses to a minimum, the dif-

fuser can be equipped with an inner cone.

6. Duct connection – Manufactured at, stan-

dard tube diameters.

7. Starting equipment and frequency

converters (VFD’s) – EVS fans can be

delivered with different electrical control

system to suit customer requirments.

8. Frames – The EVS Fans are equipped

with a separable Modular-Frame-System,

meaning each silencer and fan chassis has

its own frame. This flexible system allows

the addition or removal of silencers or fans

easy, e.g. from a single stage fan conection

to a multi stage fan.

EOL Ventsystem AB Underground Ventilation

info@eolvent.comwww.eolvent.com

Tomas BolsöyMining ProjectsKiruna, Sweden Tel: +46 (0)980-10240E-mail: tomas@eolvent.com

Raimo De FelipeTunnelling ProjectsLidingö, SwedenTel: +46 (0)8 605 96 91E-mail: raimo@eolvent.com

Increase your security with our sectional doorOur Diffpressuredoor is a specially developed gate for the client with high requirements for wind load and safety in mind, in conditions that may arise for clients such as mines and tunnel companies.

Port sections are specially de-signed, reinforced and profiled. This guarantees very high security and resistance regarding wind load and external force, and the gate can take a max differential pressure of 4500Pa. Gate dimensions width x height are cumstom-made, with a max width of 5000mm.

The gate is delivered with RECO’s frequency controlled RD100 control system, motor operation and neces-sary safety devices, and automation that is customized for you. It comes as standard delivery in heat galvanized steel sheets with painted consoles.

A comprehensive ventilation monitoring stationAccutron MAQS – Mine Air Quality Station, the all-in-one instrumentation solution built for underground mines. The Accutron MAQS has been created for your mine to monitor the ventilation environment, control the ventilation system, improve health and safety, re-duce energy consumption and increase productivity – spend more time mining!

The Mine Air Quality Station is equipped with industry leading Accu-tron ultrasonic airflow sensors, Accu-

Feel safe with Trolex Universal Gas DetectorEOL Vent System is a proud distributor of Trolex Sentro 1, an intrinsically safe, universal gas detector for safety mon-itoring of toxic and flammable gases, and climatic conditions in heavy-duty applications. It is durable and intended for use in environments such as min-ing, tunnelling, storage areas, process plants, utilities as well as oil and gas.

The unique design of Sentro 1

means that there is a solution for practically every field of application. With a choice of output signal formats, convenient compability with most sys-tem requirements in different industry sectors are ensured.

The heart of Sentro 1 is the Sentro eModule – pre-calibrated plug-in sens-ing modules that can be changed for rapid calibration and servicing to detect a range of Toxic and Flammable gases, Air Temperature and Humidity.

tron DTR gas transmitters, but can also be connected to Trolex gas trans-mitters, which we use. MAQS is also equipped with a temperature, humidity and pressure Accutron Climatrax multi sensor. To meet the demands of any mine layout or application, MAQS offers all the features necessary with multiple communication options.

From surface fan monitoring to complete underground environment monitoring, the MAQS is the most cost effective, simple to deploy and reliable solution in the industry.