• Belt Conveyor Spiral Idler
  • Belt Conveyor Spiral Idler
  • Belt Conveyor Spiral Idler
  • Belt Conveyor Spiral Idler
  • Belt Conveyor Spiral Idler

Belt Conveyor Spiral Idler

This Belt Conveyor Spiral Idler, also called screw conveyor idler and screw roller, is designed for conveying sticky materials and it has self-cleaning ability to ensure high working efficiency.

  • Applications
  • Advantages
  • Datasheet
  • Related

The Conveyor Spiral Idlers are used on the return side of the belt as belt cleaner. Spiral steel welded on the spiral roller act as a screw and pushes the build-up material on the center to the edge of the belt, return roller. Our products are widely used in thermal power generation, harbours, cement plants, metallurgy and as well as the light duty conveying devices for industries.


1) Solid design, suitable for heavy lifting.

2) The bearing housing and steel tube are assembled and welded with a concentric automatic.

3) Cutting of the steel tube and bearing is performed with the use of a digital auto device/machine/equipment.. 

4) The bearing end is constructed to ensure that the roller shaft and bearing can be firmly connected.

5) Fabrication of the roller is effected by an auto device and 100% tested for its concentricity. 

6) Roller and supporting components/materials are manufactured to DIN/ AFNOR/ FEM/ ASTM/ CEMA standard.

7) The casing  is manufactured with highly composite, anti corrosive alloy.

8) The roller is lubricated and free from maintenance.

9) Woring life expectancy is up to 30,000 hours or more, depending on usage.

10)Vacuum sealed which has withstood anti water, salt, snuff, sandstone and dust proof experiments

Tech Datasheet
SPECIFICATIONS OF Conveyor spiral idler
Diameter φ89, φ102, φ108, φ114, φ127, φ133, φ139, φ152, φ159, φ165,  φ194
Length customized
Tube Q235(GB), Q345(GB), welded with DIN2394 standed
Shaft A3 and 45# steel(GB)
Bearing Single & Double Row Deep Groove Ball Bearing 2RS&ZZ with C3 clearance
Bearing Housing/Seat Cold press working fit ISO M7 accuracy. Deep Press steel with raw material fit DIN 1623-1624 standard
Lubricating Oil Grade 2 or 3 long-lasting lithium greasae 
Welding Mixed gas shielded arc welding end
Painting Ordinary painting, hot galvanized painting, electric static spraying painting, baked painting
Specifications of spiral idler/ roller
Standard Diameter (mm) In Length scope (mm) Idler's Shell Wall Thickness (mm)
63.5 21/2 150~1400 3.0~3.75
76 3 150~3000 3.0~4.0
89 31/3 150~3000 3.0~4.0
102 4 150~3000 3.5~4.0
108 41/4 150~3000 3.5~4.0
114 41/2 150~3000 3.5~4.5
127 5 150~3000 3.5~4.5
133 51/4 150~3000 3.5~4.5
140 51/2 150~3000 3.5~4.5
152 6 150~3000 4.0~4.5
159 61/4 150~3000 4.0~4.5
165 61/2 150~3000 4.5~6.0
178 7 150~3000 4.0~4.5
194 75/8 150~3000 4.0~4.5
219 85/8 150~3000 4.5~6.0
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Phone: +86-21-38473059

Whatsapp: +8618916089629

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