10 Sets of 15 kW Mining Ventilation Fans and Accessories Shipped to Africa

noviembre 9, 2026

In November 2026, HNYT loaded ten sets of 15 kW mining ventilation fans for a mining customer in Africa. They are the same ten fans we ran in our August factory test, now on their way to site. These are axial-flow fans for local ventilation: each one pushes fresh air through a duct to a development heading, where it clears blasting fumes and dust and keeps the working face cool.

Reading the Airflow and Pressure Range

The two ranges describe one fan curve. With a short duct and little resistance, the fan works near the top of its airflow range, about 350 m³/min at low pressure. As the duct gets longer, resistance builds, the pressure rises toward 2250 Pa and the delivered air falls toward 220 m³/min. That is why we ask for the duct length and diameter before confirming a fan: the duct decides where on the curve the fan will run, and how much air reaches the face.

The motors are built for the customer’s 400 V, 50 Hz supply instead of the 380 V common in China, so they connect directly at site. With a rated current of 28.3 A per fan, the electrical team can size cables, starters and protection before the fans arrive.

Duct and Wire Rope Ordered with the Fans

A local fan only performs as well as its duct, so the customer ordered the duct line together with the fans. The order includes 2,000 m of flexible ventilation duct, 800 mm in diameter. A large diameter keeps resistance low, so more of the fan’s air reaches the face. Because of its volume, the duct was sent ahead by freight.

The order also includes wire rope for hanging the duct, with a green plastic coating that protects the steel from damp underground air. The rope is tensioned along the roadway and the duct hangs from it, so the line stays straight without sags or sharp bends that add resistance and cut the air reaching the face. The rope coils travel on the same truck as the fans.

From the Workshop to the Truck

After the August running test, the fans were lined up in our workshop for final inspection, checking the casings, mounting feet and paint.

While waiting for dispatch, the fans stayed under a felt blanket and a heavy tarpaulin to keep workshop dust out of the impellers and motor housings.

Each fan has its own starter cabinet for starting and protecting the motor. The ten cabinets were wrapped in bubble film to protect the doors, switches and enclosures from knocks and moisture in transit.

Each fan was then wrapped in blue protective film, covering the casing and both open ends to keep out rain, dust and scratches on the road.

An overhead crane lifted the fans one by one on wire-rope slings and set them on the truck bed on their own mounting feet. The starter cabinets and the green wire rope coils went on the same truck.

Where These Fans Work

A 15 kW fan suits local ventilation in development drifts, ramps and small to medium tunnel headings. Typical jobs include:

Forcing fresh air to the face through flexible duct after each blast
Diluting diesel exhaust from loaders and trucks working in the heading
Keeping the face cooler in deep or hot workings

For underground coal mines and other gassy areas, choose a flameproof model such as our FBY series press-in local fan. For longer drives, see our long-distance tunnel ventilation fan. Before start-up, follow our axial fan installation guide, and if a fan starts to shake in service, use our vibration diagnosis guide.

Planning Ventilation for a Heading?

Send us the tunnel cross-section, duct length and diameter, the airflow you need at the face, your supply voltage and frequency, and whether the area needs explosion-proof equipment. We will recommend a ventilador minero and duct set-up and reply with a quotation and parameter sheet.