1.Krupp stainless steel by punch forming. No dust, attractive and durable.

 2. Special blades shape ensures air volume large and steady, no deformation and broken.

3.Thickness: 1.2mm;surface finish: BA grade.

1.Fan belt pulley is high strength aluminum-magnesium alloy by die-casting to reduce the blade impeller's weight ensuring high corrosion resistance.

 2.Blast-sanding treatment not only for attractive appearance, but also for eliminating internal stress to improve irigidity and stability.

3.Special three reinforced ribs pulley design.

1.China famous motor or Siemens motor are optional.

2.Motor voltage and frequency can be customized.

3.Chinese famous motor OEM specially designed for fan, the first to put in the phase lack  protection which would power off once the shortage of electricity.

1.Bearing adopts French double-row with special  waterproof .

2.High strength, lower noise,free maintenance  and long life.

Japanese Mitsubishi brand belt, durable in use.

High strength nylon swung drop hammer opening device makes the shutter open and close flexibly.

The most advanced automatic belt tensioner ensures high efficiency and good performance.