Carrying Idlers for Conveyors are the most critical supporting components in a belt conveyor system. Their main job is to support the loaded belt, reduce belt sag, minimize running resistance, and ensure stable material transportation over long distances. At Rui Le'er, we manufacture high-quality carrying idlers designed for heavy-duty conveying in mining, ports, cement plants, grain handling, metallurgy, and chemical industries.
As a professional Carrying Idlers for Conveyors manufacturer, supplier, and factory in China, Rui Le'er provides full-range idler roller solutions with strict quality control, stable performance, and long service life. Whether your conveyor is used for coal, ore, sand, clinker, fertilizer, or grain, we can supply reliable idlers for both standard and customized applications.
Carrying idlers are installed on the upper side of a belt conveyor, where the belt carries materials. Their key functions include:
●Supporting belt load to prevent belt deformation
●Reducing friction to lower conveyor power consumption
●Improving belt tracking and stable operation
●Extending belt lifespan by reducing wear and impact
●Ensuring smooth material flow for continuous production
Carrying idlers are widely used together with other conveyor components such as Belt Conveyor frames, Drum Pulley systems, Drive Pulley, Bend Pulley, and Tensioning Devices.
| Item | Standard Range |
|---|---|
| Roller Diameter | 63 / 76 / 89 / 102 / 108 / 114 / 127 / 133 / 159 / 178 / 194 / 219 mm |
| Roller Length | 200–2400 mm (customizable) |
| Tube Thickness | 2.0–6.0 mm |
| Shaft Diameter | 20 / 25 / 30 / 35 / 40 / 45 mm |
| Bearing Type | Deep groove ball bearing (standard) |
| Seal System | Labyrinth seal + grease retention |
| Surface Treatment | Painting / powder coating / galvanizing |
| Rotation Resistance | ≤ 1.5 N (typical for standard models) |
| Factory Pass Rate | ≥ 99% (internal inspection control) |
As an experienced conveyor idler factory in China, Rui Le'er offers multiple carrying idler solutions:
●Flat Carrying Idlers (for normal bulk conveying)
●Trough Carrying Idlers (20° / 30° / 35° / 45°)
●Impact Carrying Idlers (for loading zones)
●Training Idlers (to reduce belt deviation)
●Heavy Duty Carrying Idlers (for mining and quarry)
●Anti-corrosion Idlers (for chemical plants and coastal areas)
If you are also sourcing Idler Roller, Return Idlers, or complete Belt Conveyor systems, Rui Le'er can supply them in one package to reduce your procurement cost.
Rui Le'er carrying idlers are widely used in:
●Mining: coal, iron ore, copper ore, limestone
●Cement & Building Materials: clinker, sand, aggregate
●Ports & Terminals: bulk cargo loading/unloading conveyors
●Grain Handling: wheat, corn, rice storage & transfer
●Metallurgy: steel raw materials and finished products
●Chemical Plants: fertilizer, corrosive bulk materials
●Logistics & Recycling: stable conveying for continuous lines
Rui Le'er is not just a supplier — we are a real conveyor equipment manufacturer and factory in Baoding, China, with:
●8,000 m² production base
●42+ skilled workers, including 17 engineers
●Full production process: machining, welding, assembly, testing
●Precision inspection: rotation resistance, runout, sealing immersion, load testing
●ISO quality management system and multiple patents
We focus on producing durable idlers that perform reliably in high dust, heavy load, and long-distance conveyor systems.
Q1: What is the difference between carrying idlers and return idlers?
Carrying idlers support the loaded belt (top side), while return idlers support the empty belt (bottom side).
Q2: How do I choose the right trough angle?
Most conveyors use 35° trough idlers. For higher capacity, 45° may be used, while 20°–30° is common for light-duty conveying.
Q3: Can you produce idlers according to CEMA or DIN standards?
Yes. Rui Le'er supports common global standards and can also produce based on drawings.
Q4: What affects idler service life the most?
Dust sealing performance, bearing quality, tube welding precision, and shaft concentricity are the main factors.
Q5: Can I buy idlers together with pulleys and conveyors?
Yes. Rui Le'er supplies complete conveyor solutions including Drum Pulley, Drive Pulley, Bend Pulley, Belt Conveyor frames, and Idler Roller sets.
If you are looking for a trusted Carrying Idlers for Conveyors supplier in China, Rui Le'er is ready to support your project with stable quality, fast delivery, and professional engineering assistance.
Send us your belt width, conveyor length, material type, and working environment — we will recommend the most cost-effective idler solution for your system.