Products Description
A gearbox HVLS fan relies on reduction rather than raw motor speed to move a large rotor. The Nord integrated gearbox steps the motor down to the roughly 50 rpm range that an HVLS fan needs, turning high-speed motor power into high-torque, low-speed rotation at the blade hub. This reduction is what lets a 0.55–1.5 kW motor sweep blades up to 7.3 meters across without overloading, and it runs quietly with no routine maintenance. The gearbox sits above dual-row deep groove ball bearings at the shaft sleeve, which reduce gear-motor load, stabilize the main shaft and protect the gear oil seal. On the electrical side, a Danfoss (Denmark) or ABB (Switzerland) variable-frequency drive controls speed and is rated for high temperature, dust, oil fume and long-hour running, with automatic alarm and stop on abnormality. Aviation aluminum-magnesium alloy airfoil blades and a streamlined tail wing keep drag low so the gearbox does not work harder than it has to.
Because this fan often goes into continuous-duty environments, batch-production consistency matters to buyers: every unit on this line is fully tested before shipment with 100% inspection, and third-party inspection is accepted. That consistent build and test process means a reorder placed a year after the first shipment behaves like the first unit, which matters when a warehouse or plant expands in phases.
Specifications
|
Parameter |
Specification |
|
Reduction unit |
Nord integrated gearbox |
|
VFD rating |
High temperature / dust / oil fume / long-hour duty |
|
Blade diameter |
2000–7300 mm |
|
Blade count |
5–10 |
|
Motor power |
0.55–1.5 kW |
|
Max speed |
55–100 RPM |
|
Air volume |
900–18,700 m³/min |
|
Coverage |
55–1,150 m² |
|
Weight |
75–165 kg |
Applications
Foundry or heat-treatment bays
the high-temperature-rated gearbox and VFD hold up where ambient heat would derate ordinary drives.
Dust-heavy material handling areas
the sealed gear-motor and protected oil seal resist dust ingress better than exposed belt drives.
Round-the-clock distribution centers
reduction gearboxes handle long running hours without scheduled lubrication stops.
Customization
OEM/ODM and private label, manufactured to drawings or prototypes.
Blade diameter 2000–7300 mm and blade count 5–10.
380 V three-phase or 220 V single-phase power.
Fits H-beam, I-beam, RC square beam and round tube mounting.
Packaging & Transportation
Units are packed in fumigation-free plywood wooden cases, fully tested before shipment, and shipped under EXW, FOB, DDP or CIF.
FAQ
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