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.

Talk to an Engineer Download Spec Sheet [PDF]

Trusted by the largest brands

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.

Customer Success Stories

We've been sourcing conveyor components from United Global Engineering Solutions for quite some time now. Their conveyor belt accessories, including industrial conveyor rollers and pulleys, have consistently met our quality and performance standards. We highly recommend them for all your conveyor system needs.
Thabo MokoenaThe Repeat Client
We worked with United Global Engineering Solutions for our conveyor needs, and the experience was excellent from start to finish. Their team understood our requirements quickly, recommended the right conveyor solution for our operations, and delivered quality industrial conveyor belts that made a real difference. Since the installation, our workflow has improved and day-to-day operations feel much more efficient. We’re grateful for their support and would gladly recommend them.
Johan BothaThe Satisfied Customer
We’ve worked with United Global on multiple projects, and their conveyor belts for food processing have made a real difference. What stands out most is their ability to customize solutions to our needs and deliver quality products on time. Their prompt service and cost-effective approach have made them a partner we can count on.
Sipho DlaminiThe Valued Partner
We’ve worked with United Global Engineering Solutions on multiple projects, and they’ve consistently delivered. Their conveyor belts for food processing have made a real difference for us, and we’ve appreciated how they tailor solutions to our specific needs. The team is responsive, the service is prompt, and the solutions are cost-effective without sacrificing quality.
Ruan SmitThe Satisfied Manufacturer