How can the service life of a polyester conveyor belt be extended?
Release time:
2026-09-04
Author:
Bangbo Machines
Improve the discharge funnel of the polyester conveyor belt. Enhance the funnels at the transfer points of each conveyor belt, increasing their capacity to handle foreign materials by a factor of 2.5 and preventing large or elongated items from becoming lodged between the funnel walls and the belt, thereby reducing the likelihood of belt tearing.
1. Improve the discharge funnel of the polyester conveyor belt. Enhance the funnels at the transfer points of each conveyor belt, increasing their capacity to handle foreign materials by a factor of 2.5 and preventing large or elongated objects from becoming lodged between the funnel walls and the belt, thereby reducing the likelihood of belt tearing.
2. Install scrapers on the return idlers. Add scraping devices to the return idlers along the belt to eliminate material adhesion issues, thereby addressing localized belt wear caused by material sticking to the rollers.
3. Improvements to the belt’s head, tail, and transition points. The length and method of transitioning at the head, tail, and intermediate transition points significantly affect the belt’s service life. Wear on the belt surface should be minimized by ensuring that no folds or ridges form on the belt and that no material spills at the drop points.
4. Pressing rollers at concave transitions. Practice has shown that steel belts with steel cords lack sufficient lateral strength, and during start-up, the pressing rollers exert excessive localized force, tearing the belt. Replacing all pressing rollers with pressure rolls completely resolves this issue.
5. Reduce the counterweight load on the main arm belt of the machine. The service life of the bucket‑wheel loader belt in coal yards was short due to excessively heavy counterweights, which increased belt tension and caused premature cracking. After reducing the counterweights while maintaining the tension required for material conveyance, the belt’s service life for handling 1.5 million tonnes of coal increased from 1.5 million to 4.5 million tonnes. The bucket‑wheel loader arm belt in the 200,000‑tonne mining system originally had a 25‑tonne counterweight (including the roller weight), and an imported tear‑resistant belt failed before reaching 3 million tonnes. Following two reductions of 6 tonnes each, using a standard locally produced steel belt, the system transported over 8 million tonnes.
6. Adjustment of material flow direction. The flow direction significantly affects the service life of the polyester belt. The material should flow in the same direction as the belt, which effectively increases the equipment’s durability.
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