Table of contents:
Product description
Axial fans designed for use in tunnelling and mine workings. They are ideal for ventilation as well as working with coolers. They generate low noise levels. They convey large air masses over long distances while consuming low amounts of energy. Available with motors with supply voltages of: 500V or 1000V and for an operating frequency of 50 or 60Hz. Available with accessories such as a noise damper, inlet confuser, guard net or support sled. It is possible to assemble the fans for serial operation (double fan).
- Standard diameter range: Ø250 – 2000mm
- Capacity range: 20000 – 50400m3/h
- Operating temperatures: -20 to +55°C
- Installed motor powers: 0.55 – 160.0 kW
- Motor speeds: 3000; 1500; 1000 min-1
- Motors fitted with maintenance-free bearings
- Motors adapted as standard for speed control by a frequency converter
- Steel housings
- Corrosion-protected housing – powder-coated
- Outlet protected with protective mesh
Optional executions
- High-temperature temp. max: 85°C
- Casing made of stainless sheet
- Flow parameters other than standard
Construction
Housing
Motor
Rotor
Housing:
- Machined from structural sheet steel. Fitted on both sides with flanges rolled from the casing shell and provided with connection holes
- Fitted with a welded motor shield
- Equipped with a rear wheel
- Protected against corrosion by painting. Painted in colour: RAL 1016 (sulphur yellow)
Housing optional:
- Corrosion protection by hot-dip galvanising
- Housing made of stainless steel, grade 1.4301
- Inspection hatch
- Painted in another RAL colour, also fluorescent
Motor:
- Asynchronous 3 phase
- Supply voltage: 3~ 500V
- Efficiency class : IE3
- Insulation class: F
- Degree of protection: IP 55
- Cast aluminium or cast iron motor body
Motor optional execution:
- Supply voltage: 1000V; 500/1000V
- Supply frequency: 60Hz
- Efficiency class: IE4
- Motor insulation class: H
- Degree of protection: IP 56, IP66
- Winding temperature sensors
- Bearing temperature sensors
Impeller:
- Blades and hub made of die-cast aluminium
- High flow capacity in the low and medium pressure range
- Dynamically balanced to class G-2.5 in accordance with ISO 1940-1
