Spiral Idlers for Power Plants

Self-cleaning spiral return idlers for power plant coal handling conveyors, with helical strip construction that sheds wet coal fines and sticky ash carryback from CHP conveyor return belt strands.

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Spiral Idlers Key Specifications

Spiral Design

Helical rubber strips wound on steel core tube create self-cleaning gaps that prevent wet coal fines from building up on return rollers in CHP conveyors.

Anti-Buildup Performance

Spiral openings shed wet coal dust and sticky fly ash carryback that would compact on smooth return rollers in humid power plant environments.

Roller Diameter

89 mm to 127 mm overall diameter with corrosion-resistant core tube for outdoor CHP return strand applications.

Spiral Material

SBR rubber strips (55-65 Shore A) with wear-resistant compound, helically wound for optimal coal fines shedding performance.

Spiral Pairing

Left-hand and right-hand spiral pairs installed alternately to push coal carryback outward from both belt edges on CHP return strands.

Corrosion Resistance

Galvanized or epoxy-coated core tubes and end caps to resist corrosion from wet coal dust and acidic ash residue in power plants.

Industrial Applications

CHP Return Strand Coal Fines Shedding
Spiral idlers on main CHP conveyor return strands actively remove wet coal fines that would otherwise compact into hard deposits on standard rollers.
Ash Handling Conveyor Returns
On fly ash and bottom ash conveyor return strands, spiral idlers shed sticky alkaline ash residue that corrodes and jams smooth return rollers.
Outdoor Coal Yard Conveyor Returns
In rain-exposed coal yard conveyors, spiral idlers prevent the wet coal paste buildup that causes return roller seizure and belt tracking problems.

What Our Partners Say

We have been sourcing material handling components from United Global Engineering Solutions for quite some time. Their conveyor accessories, including rollers and industrial pulleys, have consistently met our standards for quality and performance. We confidently recommend them for any conveyor system requirement.
Carlos MedinaRegular Client
We worked with United Global Engineering Solutions for our industrial conveying needs, and the experience was excellent from start to finish. Their team quickly understood what we needed, recommended the right solution for our operations, and delivered high-quality industrial conveyor systems that made a real difference. Since installation, our workflow has improved and day-to-day operations are much more efficient. We truly value their support and would gladly recommend them.
Javier SánchezSatisfied Client
We have worked with United Global on several projects, and their food-grade conveyor systems have delivered a significant improvement. What stands out most is their ability to customize solutions around our needs and deliver quality products on time. Their responsive support and cost-effective approach have made them a trusted partner.
Miguel TorresTrusted Partner
We have collaborated with United Global Engineering Solutions on multiple projects, and they have consistently delivered strong results. Their food-grade conveyor systems have brought a noticeable improvement to our operations, and we especially appreciate how they tailor each solution to our specific requirements. The team responds quickly, the service is efficient, and the solutions are cost-effective without compromising on quality.
Laura GómezHappy Manufacturer