GAL3-15/15 to GAL14-1100/1100 Double-stage Underground Mine Ventilation
Double-stage axial fan in counter-rotating design, axial impellers cast from EN AB 43000, profiled blades with no edges in the flow surface, sturdy steel housing, foot mounting.
Three-phase AC squirrel-cage motors S1 in special design.
Protection class >= IP 55; insulation class F, tropicalised.
unique tracking order for each fan.
Energy efficiency class >= IE2.
three layer anti-corrossion painting.
Terminal box position: top, side 45° or inside.
PTC thermistor
largest diameter 5meters!
Optional: Hydraulic drive sizes from Ø 300 mm to Ø 600 mm
Each hub is annealed to remove internal stress.Durable enough.
Orthogonal 3D Twisted Blade Technology of Bend and Sweep Combination,Simulated Dune Principle.
In line with international standards, 1000: 1.5~2.5, to ensure that the impeller works more safely and efficiently.
Design Double-stage axial fan in counter-rotating design, axial impellers cast from EN AB 43000, profiled blades with no edges in the flow surface, sturdy steel housing, foot mounting.
Control Direct or star-delta starting. Optional: speed-regulated, soft start, pole-changeable.
Coating Priming with top coat, alkyd resin Silac,total layer thickness min. 180 μm. Standard colour: Pure white (RAL9010)
Opptions Sealed motor, dust disks, hard coated impeller, special coating, vibration dampers, impact protection, VFD compatibility,cold environment, motor monitoring, incr. efficiency class,vibration sensors, volume flow, pressure difference, adjustable blades, bifurcated. Technical execution according to Machinery Directive: EU Directive 2006/42/EC ErP ecodesign: Directive 2009/125/EC Test bench run according to DIN EN ISO 5801/2017
FAQ
Q : we have no data about air quantity of the fan,can you give us some recommendations?
A: Yes,just let us know the tunnel diameter/length,our engineer will design for you.
Q : we want ventilation fans for our coal mine,is there anything we should pay attention to?
A: if use fans in coal mine (especially underground),explosion-proof motor and aluminum alloy impeller is necessary.
Q : what's the meaning of double stage fan?And what is the advantages?
A: double stage fan,means two sets fan used in series. Advantages:larger pressure,long air deliver distance,but fan will be more compact.
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