--- title: Conveyor Belt Troughing Angle description: Learn how belt trough angles impact conveyor performance, from sealing and tracking issues to maintenance efficiency. --- [Skip to content](https://foundations.martin-eng.com/migration/en/knowledge/conveyor-belt-troughing-angle#main-content) ![Martin Engineering Signature Logo](https://foundations.martin-eng.com/hs-fs/hubfs/MartinEng_Sig_2c_RGB.png?height=40&name=MartinEng_Sig_2c_RGB.png) - Topics Show submenu for Topics - [Belt Conveyor System Basics](https://foundations.martin-eng.com/migration/en/knowledge/basics-of-belt-conveyor-systems) - [Mistracking](https://foundations.martin-eng.com/migration/en/knowledge/conveyor-belt-mistracking) - [Conveyor and Component Damage](https://foundations.martin-eng.com/migration/en/knowledge/belt-conveyor-and-component-damage) - [Carryback and Belt Cleaning](https://foundations.martin-eng.com/migration/en/knowledge/material-carryback-and-belt-cleaning) - [New Technology](https://foundations.martin-eng.com/migration/en/knowledge/new-technology-and-innovation) - [Material Flow](https://foundations.martin-eng.com/migration/en/knowledge/material-flow) - [Safety](https://foundations.martin-eng.com/migration/en/knowledge/belt-conveyor-safety) - [Dust Management](https://foundations.martin-eng.com/migration/en/knowledge/dust-management) - [Maintenance](https://foundations.martin-eng.com/migration/en/knowledge/belt-conveyor-system-maintenance) - [Spillage](https://foundations.martin-eng.com/migration/en/knowledge/material-spillage) Open main navigation Close main navigation - Topics Show submenu for Topics - [Belt Conveyor System Basics](https://foundations.martin-eng.com/migration/en/knowledge/basics-of-belt-conveyor-systems) - [Mistracking](https://foundations.martin-eng.com/migration/en/knowledge/conveyor-belt-mistracking) - [Conveyor and Component Damage](https://foundations.martin-eng.com/migration/en/knowledge/belt-conveyor-and-component-damage) - [Carryback and Belt Cleaning](https://foundations.martin-eng.com/migration/en/knowledge/material-carryback-and-belt-cleaning) - [New Technology](https://foundations.martin-eng.com/migration/en/knowledge/new-technology-and-innovation) - [Material Flow](https://foundations.martin-eng.com/migration/en/knowledge/material-flow) - [Safety](https://foundations.martin-eng.com/migration/en/knowledge/belt-conveyor-safety) - [Dust Management](https://foundations.martin-eng.com/migration/en/knowledge/dust-management) - [Maintenance](https://foundations.martin-eng.com/migration/en/knowledge/belt-conveyor-system-maintenance) - [Spillage](https://foundations.martin-eng.com/migration/en/knowledge/material-spillage) - [Request Assistance](https://info.martin-eng.com/request-assistance) [Request Assistance](https://info.martin-eng.com/request-assistance?hsLang=en) Hi! How can we help you? - There are no suggestions because the search field is empty. 1. [Foundations™ Learning Center](https://foundations.martin-eng.com/migration/en/knowledge?hsLang=en) 2. [Basics of Belt Conveyor Systems](https://foundations.martin-eng.com/migration/en/knowledge/basics-of-belt-conveyor-systems?hsLang=en) - [Basics of Belt Conveyor Systems](https://foundations.martin-eng.com/migration/en/knowledge/basics-of-belt-conveyor-systems?hsLang=en) - [Conveyor Belt Mistracking](https://foundations.martin-eng.com/migration/en/knowledge/conveyor-belt-mistracking?hsLang=en) - [Belt Conveyor and Component Damage](https://foundations.martin-eng.com/migration/en/knowledge/belt-conveyor-and-component-damage?hsLang=en) - [Material Carryback and Belt Cleaning](https://foundations.martin-eng.com/migration/en/knowledge/material-carryback-and-belt-cleaning?hsLang=en) - [Material Spillage](https://foundations.martin-eng.com/migration/en/knowledge/material-spillage?hsLang=en) - [Belt Conveyor Safety](https://foundations.martin-eng.com/migration/en/knowledge/belt-conveyor-safety?hsLang=en) - [Dust Management](https://foundations.martin-eng.com/migration/en/knowledge/dust-management?hsLang=en) - [Material Flow](https://foundations.martin-eng.com/migration/en/knowledge/material-flow?hsLang=en) - [New Technology and Innovation](https://foundations.martin-eng.com/migration/en/knowledge/new-technology-and-innovation?hsLang=en) - [Belt Conveyor System Maintenance](https://foundations.martin-eng.com/migration/en/knowledge/belt-conveyor-system-maintenance?hsLang=en) # Conveyor Belt Troughing Angle ## Understanding Belt Troughing: Impact on Conveyor Performance and Maintenance ![0404H](https://foundations.martin-eng.com/hs-fs/hubfs/Imported_Blog_Media/0404H.png?width=688&height=516&name=0404H.png)Belts are designed with a troughed shape to enhance their capacity for carrying materials. Increasing the trough angle allows the conveyor to accommodate a larger volume of material. Idlers play a crucial role in shaping flat rubber or PVC belts into troughs. The maximum trough angle is determined by factors such as the belt carcass type, belt thickness, width, and tension rating. Manufacturers typically specify troughability on technical data sheets, indicating the minimum belt width required for different trough angles. Exceeding the maximum trough angle for a specific belt can cause permanent deformation, leading the belt to adopt a cupped shape. [Cupping makes the belt challenging to seal, clean, and track properly.](https://foundations.martin-eng.com/en/knowledge/conveyor-belt-cupping?hsLang=en) It reduces surface contact between the belt and the conveyor's rolling components, impairing the components' ability to steer the belt effectively. When a belt's troughability limit is surpassed, it may fail to form the trough correctly, resulting in sealing and tracking issues. A belt that is too stiff to trough properly will also struggle to track correctly within the conveyor system. This misalignment can quickly escalate into material spillage from the conveyor's edges and damage to the belt's edges. Additionally, exceeding the belt's troughing capability can damage the top and bottom covers as well as the carcass around the idler junctions. If the belt's troughability is not compatible with the troughing idlers, it may increase the power required to operate the conveyor beyond its original design specifications. [![Martin Engineering Signature Logo](https://foundations.martin-eng.com/hs-fs/hubfs/MartinEng_SigLogo_2c_150px_Padded.png?width=196&height=55&name=MartinEng_SigLogo_2c_150px_Padded.png "Martin Engineering Signature Logo")](https://www.martin-eng.com/) Foundations™ Learning Center Copyright © 2025, Martin Engineering