Copyright © 2026 Fluent Conveyors, LLC. All rights reserved.
The Fluent Conveyors logo is a registered trademark of Fluent Conveyors, LLC. Serial Number 97664258 Registered on Dec. 12, 2023
Copyright © 2026 Fluent Conveyors, LLC. All rights reserved.
The Fluent Conveyors logo is a registered trademark of Fluent Conveyors, LLC. Serial Number 97664258 Registered on Dec. 12, 2023
Troughed-profile belts for bulk aggregate, recycling, and mining conveyance. Configure by width, ply, compound, cover, cleat, and splice for Fluent conveyors or any general retrofit installation.
Note that not all belts can be configured with each option.
36, 48, 60, 72, 84 inches; larger custom widths require longitudinal splicing
Polyester and nylon
Rubber, neoprene, nitrile (FDA/USDA), SBR, butyl, PVC, polyurethane
Smooth, white FDA, blue FDA, green FDA, black, rough top, crescent top, chevron top, cleated top, UV resistance
2–4 inches; 1/4–3/8-inch thick angles; flat bar cleats also available
Bighorn, fablift, longhorn, FabClimb (3-ply 225 3/16 × 1/16-inch) in 3 pattern widths (31, 23 1/2, and 17 1/4-inch)
Black standard, black oil resistant, black high-heat resistant, black flame retardant (FR), black high-oil resistant, white oil-and-fat resistant (FDA)
1/4, 3/8, 1/2 inch
2 1/16, 3, 3 1/2, 4, 5 inches
Endless non-mechanical splices, rivet plate and hinged, custom finger splice, longitudinal splice, bolt hinged and plate, alligator hinged and clips, vulcanized, food-grade splices
C-channel backing, no wings, top impact shoes, formed trapezoids, inverted angle for hot materials
Store indoors; best if installed within 1 year
conveyor operation.
Trough idler conveyor belts run across a series of angled carrying idlers that bend the belt into a troughed profile, keeping loose, granular, and bulk materials centered on the carry side. The troughed shape increases load capacity per belt width, contains spillage, and cuts fugitive dust on long conveyance runs. Compared with a flat idler belt of the same width, a troughed belt moves substantially more material at the same speed.
Trough idler belts are built from rubber, PVC, or specialty compounds over a polyester or nylon carcass. Heavy-duty rubber compounds are specified for abrasion resistance, oil resistance, flame retardance, and high-heat service. FDA-compliant nitrile and white PU covers are available for food and sanitary applications. For extreme impact loading (mining, quarry, and scrap), rip-resistant carcasses and thicker covers extend service life between replacements.
Review industrial belts for the full range of compound-based options.
Trough idler belts carry loose, granular, and bulk materials over short transfers and long-distance runs. They are the default specification for heavy, abrasive, or dusty product streams that need containment during transport.
Popular applications
Rock, ore, sand, and gravel
Grain and agricultural bulk
Coal and power-plant fuel handling
Biomass, wood chips, and stover for bio-fuel production
Glass, plastics, and mixed recyclables
Scrap metal and shredded fractions
Abrasive debris and raw construction material
Hot and abrasive bulk from foundry and furnace operations
Common industries
Trough idler belt conveyors integrate with recycling sort stations, crushers, screens, and baler infeeds across most heavy-process facilities.
When replacing a belt, provide the manufacturer documentation to match the existing spec. For a new specification or a retrofit where documentation is unavailable, measure the old belt and work through the following criteria:
For more information, see how to choose the correct conveyor belt and how to select the correct conveyor belt size.
When ordering a replacement trough idler belt, have these measurements ready. If anything's unclear, contact our engineering team, and we'll help work through it.
Belt width (inside sealing wings)
Belt width (overall)
Belt length
Idler (roller) spacing
Cleat height (angle iron shown)
Cleat thickness
Total cleat length
Offset from sealing wing
Idler diameter
Flange idler diameter (if applicable)
Idler width
Overall idler width (includes flange)
Sealing wing height
Sealing wing thickness
Sidebar width
Sidebar thickness
Single- or double-row designation
Support type and size
Support spacing
Support length
Wear pad thickness
Wear pad quantity
Wear pad spacing
Wear pad location
Wear pad size
Fluent designs and builds custom conveyors for recycling, mining, aggregate, and other demanding industries. When you source through us, you're working with engineers who specify and troubleshoot trough idler belts every day.
Heavy-duty rubber compounds rated for abrasion, oil, flame-retardant, and high-heat service
Widths 36–84 inches stocked; larger widths available with longitudinal splicing
Cleat, chevron, and flat profiles matched to your trough angle and material stream
Vulcanized endless and mechanical splice options for factory or field installation
Configured belts ship in 2–5 weeks, depending on specification
Ready to work with the experts?
For our flat idler conveyors, a go-to choice for general conveyance.
For our slider bed conveyors, a cost-efficient, light-duty conveyor solution.
For our trough slider bed conveyors, a light-duty, bulk-material solution.
For our roller chain conveyors, heavy-duty material handling solutions.
For asphalt milling machines, mobile screeners, and other equipment.
With crisscrossed fabric plies for exceptional tear resistance.
Attached or integrally molded cleats to prevent product rollback and material spillage.
Sidewalls and cleats are hot vulcanized to the belt for a durable connection.
