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Our Triple Conveyor Idlers (3-Roller Sets) are professional trough-type conveying components designed for bulk material handling systems. Crafted from high-quality steel, PVC, or PP materials with precision machining and assembly, they feature a stable three-roller structure (1 middle roller + 2 side rollers) to form a trough shape, ensuring efficient and spill-free transport of bulk materials—making them the optimal choice for mining, construction, agriculture, and logistics bulk conveying scenarios.
Triple Conveyor Idlers are core components of trough belt conveyor systems, primarily functioning to support the conveyor belt, form a trough angle to prevent bulk material spillage, and reduce friction during material transport. Compared to single parallel idlers, our triple idlers provide more stable support for the belt and bulk materials, improving conveying efficiency and reducing material waste. They are manufactured via precision cutting, welding, and assembly, with strict quality control on roller rotation flexibility, trough angle accuracy, and structural stability. Fully compliant with ISO 9001 and industrial conveyor standards, they meet the performance requirements of heavy-duty bulk conveying systems.
Advantage: Reduces bulk material spillage by 90% compared to single idlers, and improves conveying efficiency by 10–15% due to the stable trough structure.
Stable Trough Structure
Adopts three-roller integrated design (middle roller parallel, side rollers tilted), forming 30°/35°/45° optional trough angles, which can firmly hold bulk materials such as coal, sand, and gravel, effectively preventing spillage during conveying and reducing material waste.
Strong Load-Bearing Capacity
The frame is made of high-strength steel plate, and the rollers are made of wear-resistant materials (steel, PVC, PP) with reinforced shafts and sealed bearings, capable of bearing heavy bulk material loads (up to 300kg/set), suitable for heavy-duty conveying scenarios.
Excellent Wear & Corrosion Resistance
Roller surface is treated with galvanizing, spray painting, or wear-resistant plastic coating (PVC/PP), which can resist friction, corrosion, and humid environments; no rust or deformation, ensuring long-term stable operation in harsh industrial environments.
Smooth Rotation & Low Noise
Equipped with high-quality sealed double-row ball bearings, pre-lubricated with high-temperature grease, ensuring flexible rotation with low friction; rotational noise < 55dB, creating a quiet working environment.
Easy Installation & Alignment
Integrated modular design, compact structure, easy to install and fix on the conveyor frame; the trough angle is pre-adjusted during production, ensuring accurate alignment with the conveyor belt, avoiding belt deviation and wear.
Long Service Life & Low Maintenance
Sealed bearing design prevents dust, sewage, and material particles from entering, achieving 20,000+ hours of maintenance-free operation; the rollers can be replaced independently, reducing maintenance time and labor costs.
Support custom processing of roller diameter (38mm–108mm), length, trough angle (30°/35°/45°), and material (steel, PVC, PP); optional anti-corrosion, anti-static, or UV-resistant modifications; can be customized according to conveyor frame size and bulk material characteristics.
Regularly check the trough angle and alignment of the triple idlers; adjust in time if there is deviation, to avoid conveyor belt deviation, wear, or material spillage.
Inspect the wear condition of the roller surface and bearings regularly; replace the roller or bearing in time when wear exceeds the limit, to ensure smooth rotation.
Do not exceed the rated load during operation; overloading will cause damage to the idler frame, shaft, and bearings, affecting the stability of the conveying system.
Clean the idlers regularly to remove material residues on the roller surface and around the bearings, preventing clogging and affecting rotation flexibility.
In outdoor or humid environments, regularly check the anti-corrosion layer of the frame and rollers; re-spray or galvanize in time if there is peeling or rust, to extend service life.
