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Conveyor Roller Factory Direct with High Load Capacity and Smooth Rotation
YUFENG Conveyor Roller, also known as conveyor idler, is a load-bearing and guiding component used in belt conveyor systems. It supports the loaded belt, reduces running resistance and helps maintain stable belt movement during continuous material transportation.
YUFENG manufactures industrial rollers using thick-walled steel tubes, solid shafts, precision bearings and multi-layer sealing structures. The product range covers standard steel rollers, HDPE anti-corrosion rollers, PU impact rollers, trough rollers, return rollers, self-aligning rollers and spiral self-cleaning rollers for mining, cement, ports, power plants, chemical facilities and other bulk material handling applications.
Roller configuration should be selected according to belt width, material lump size, loading impact, operating environment and conveyor structure. YUFENG provides different diameters, shell materials, bearing configurations and sealing structures for project-specific requirements.
Roller Types by Working Condition
The shell material and structural design directly affect roller load capacity, corrosion resistance, impact absorption and operating life. YUFENG provides several roller constructions for different conveyor environments.
| Roller Type | Core Characteristic | Applicable Working Condition |
|---|---|---|
| Carbon Steel Conveyor Roller | High load-bearing capacity, strong impact resistance and stable operating cost | Mining, cement plants, thermal power plants and heavy bulk material transportation |
| HDPE Plastic Conveyor Roller | Lightweight, rust-free, acid and alkali resistant with low running noise | Coastal ports, chemical plants and humid open-pit mining environments |
| PU Lagging Impact Roller | Elastic PU buffer rings absorb material impact and reduce belt damage | Crusher discharge points and high-impact material loading areas |
Carbon steel rollers are commonly used for heavy-duty conveying because of their structural strength. HDPE rollers are more suitable where corrosion, salt spray or chemical exposure is a concern. PU impact rollers are positioned at loading points where large or sharp materials can create concentrated impact forces on the conveyor belt.
Roller Specifications for Different Conveyor Systems
YUFENG supplies standard roller outer diameters of 76, 89, 108, 114, 133, 168, 194 and 219 mm. The rollers can be matched with conveyor belt widths from approximately 500–2400 mm, with roller length and wall thickness available according to conveyor frame drawings and load requirements.
The roller range is compatible with common DTII and TD75 conveyor structures and can be used with fabric conveyor belts, steel cord conveyor belts, sidewall conveyor belts and pipe conveyor belts.
Configurations
Trough Carrying Roller
A trough roller set normally uses three rollers to form a 30°, 35° or 45° carrying trough. It supports the loaded upper belt and helps maintain the required belt shape for transporting coal, sand, limestone and other bulk materials.
PU Lagging Impact Roller
PU elastic rings are installed around the roller body to absorb impact energy at material loading points. This reduces concentrated impact on the conveyor belt and is suitable for crusher discharge and other high-drop applications.
Self-Aligning Roller
Self-aligning rollers use guide rollers on both sides to help correct belt deviation during operation. They are commonly installed on long conveyor lines where continuous belt alignment is important for reducing material leakage and edge wear.
Return Parallel Roller
A return roller supports the unloaded lower belt as it travels back toward the drive section. Standard parallel rollers can be used for conventional return sections, while V-type return arrangements can provide additional belt-tracking support.
HDPE Anti-Corrosion Roller
The HDPE shell does not rust like conventional carbon steel and provides resistance to salt spray, moisture and selected chemical media. It is suitable for coastal terminals, chemical plants and other corrosive operating environments.
Spiral Self-Cleaning Roller
The helical roller surface helps remove sticky clay, wet sand and other materials that may adhere to the belt. This design can reduce material accumulation around the roller and lower the risk of roller jamming in wet conveying applications.
Materials and Roller Structure
YUFENG selects the roller shell, shaft, bearing and sealing components according to the expected load and operating environment. The combination of these components determines the roller's running resistance, sealing performance and service life.
Roller Shell
Carbon steel rollers can use Q235 steel tube, while HDPE rollers use virgin HDPE material. Stainless steel 304 shell construction is also available for applications requiring additional corrosion resistance.
Roller Shaft
45# solid cold-drawn steel shaft is used for standard heavy-duty constructions. The solid shaft provides resistance to bending and deformation under continuous loading.
Bearing
Deep-groove ball bearings with C3 clearance are used to support smooth rotation. Domestic high-precision bearings and imported SKF or FAG bearings can be selected according to project requirements.
Sealing System
The roller can use a multi-channel nylon labyrinth structure combined with rubber contact seals. The sealing arrangement is designed to reduce the entry of dust and water into the bearing cavity and retain lubricating grease around the bearing.
Customized Roller Options
Different conveyor projects require different roller dimensions and configurations. YUFENG can customize the roller according to belt width, frame dimensions, material characteristics and environmental conditions.
Shell Material
Available options include Q235 carbon steel, HDPE and 304 stainless steel for different load and corrosion requirements.
Surface Treatment
Surface options include electrostatic powder coating, hot-dip galvanizing and full PU lagging. The appropriate treatment can be selected according to corrosion, impact and service requirements.
Sealing Structure
Double and triple composite labyrinth sealing structures are available for applications with different dust and water exposure levels.
Bearing Configuration
Domestic high-precision bearings or imported SKF/FAG C3 bearings can be specified according to the required operating performance and project budget.
Special Working Conditions
Low-temperature, flame-retardant and anti-static roller configurations can be supplied for specialized underground mining and other demanding environments.
Supporting Accessories
YUFENG can also supply matching roller brackets and support frames according to the conveyor structure, simplifying component matching during system installation.
Roller Performance for Continuous Operation
Conveyor rollers operate continuously while the belt is running, so bearing protection, rotation resistance and concentricity are important purchasing considerations. YUFENG uses controlled machining and assembly processes to maintain consistent roller geometry and running performance.
| Performance Item | Standard Requirement | Test Standard |
|---|---|---|
| Rotation Resistance Coefficient | ≤0.008 | ISO 15365 |
| Dust & Water Ingress Grade | IP65 | IP Test Standard |
| Rated Load Service Life | ≥30,000 working hours | Factory Accelerated Aging Test |
| Roller Shell Concentricity | ≤0.5 mm | Dial Indicator Test |
| Bearing Anti-Aging Time | ≥5,000 h high-temperature test | Internal Lab Test |
| Axial Static Load Capacity | 1.5 times rated load without deformation | Static Pressure Test |
Actual performance depends on roller diameter, shell thickness, bearing selection, load, belt speed and operating environment. Factory test data can be provided according to the selected roller configuration.
Quality Control and Manufacturing Standards
YUFENG conveyor rollers are manufactured according to applicable conveyor equipment requirements and relevant international and national standards, including CEMA, GB/T 10595 and ISO 15365. Applicable mining and export products can also be supplied with corresponding inspection and certification documentation.
Available quality documentation can include ISO 9001 quality management certification, CE documentation, SGS raw material inspection reports, coal mine safety test documentation and factory rotation resistance and service-life test reports, depending on the roller configuration and destination market.
Raw Material Inspection Before Assembly
Roller reliability depends heavily on the quality of the steel tube, shaft, bearing and sealing components. YUFENG inspects incoming materials before they enter the assembly process to reduce the risk of premature bearing failure, shaft deformation and shell defects.
Steel Tube Inspection
Steel tubes are checked for dimensional consistency and structural quality. Inferior thin-wall or unsuitable recycled tubes are not accepted for standard heavy-duty roller production.
Shaft Inspection
Solid shafts are inspected for dimensions and machining accuracy to maintain correct bearing positioning and roller concentricity.
Bearing Inspection
Bearings are checked for rotation characteristics and applicable performance requirements before assembly.
Assembly Inspection
Completed rollers undergo rotation resistance and related sampling tests before release. This helps identify abnormal running resistance, sealing problems or assembly deviations before shipment.
Applications in Bulk Material Conveying
YUFENG Roller is designed for belt conveyor systems used across industries where continuous bulk material handling is required. Roller type and material are selected according to the conveying environment and belt structure.
Mining and Quarrying
Carbon steel trough rollers, impact rollers and self-aligning rollers are used for coal, ore, limestone and aggregate conveying systems with heavy loads and high material impact.
Cement and Building Materials
Rollers support continuous transportation of limestone, clinker, sand, gravel and other abrasive materials throughout crushing and cement production lines.
Ports and Bulk Terminals
HDPE anti-corrosion rollers can be selected for coastal environments where humidity and salt spray may accelerate corrosion of conventional steel components.
Chemical Plants
HDPE or stainless steel roller constructions can be considered where conveyor components are exposed to moisture or selected corrosive chemical environments.
Power and Industrial Plants
Heavy-duty steel rollers and impact rollers can support coal, ash, slag and other bulk material transportation systems depending on temperature and material characteristics.
Installation and Roller Replacement
YUFENG conveyor rollers use a practical shaft-and-bracket structure that allows routine installation and replacement without complex modification to the conveyor frame.
New Conveyor Installation
Roller support brackets are fixed to the conveyor frame according to the design spacing. The roller shafts are then aligned with the bracket mounting holes and secured with the specified pins or bolts. The completed roller should rotate freely without abnormal resistance.
Worn Roller Replacement
The conveyor must be stopped and isolated from the power source before maintenance. After removing the shaft locking components, the damaged roller can be removed and replaced with a new unit. Rotation should be checked before the conveyor is returned to service.
Impact Roller Layout
For crusher loading areas, three to five groups of PU impact rollers can be arranged within approximately 5 m of the loading point to distribute impact forces and reduce concentrated belt damage.
Matching Conveyor System Products
YUFENG supplies rollers together with other bulk material handling components for projects requiring coordinated procurement. Matching products can be selected according to the same conveyor design and operating conditions.
Conveyor Belt Series
Available belts include fabric conveyor belts, steel cord conveyor belts, sidewall conveyor belts, pipe conveyor belts, patterned belts and rough-top belts.
Roller Accessories
Matching trough, return, self-aligning and impact roller brackets and support stands can be supplied according to the conveyor frame configuration.
Rubber Accessories
Wear-resistant rubber sheets, conveyor skirting, repair adhesives and patching materials are available for conveyor installation and maintenance.
HDPE Pipeline Products
HDPE water pipes and dredge pipes can be supplied for auxiliary fluid transportation requirements in mining and industrial projects.
Custom Processing
Roller diameter, wall thickness, shaft dimensions and sealing structure can be adjusted according to customer drawings and working-condition requirements.
Packing for International Shipment
YUFENG uses different packaging structures according to roller diameter, weight and material to reduce collision, moisture and surface damage during transportation.
Small Diameter Rollers
76, 89 and 108 mm rollers can be bundled with steel wire, fitted with protective caps at both shaft ends and packed in wooden cases.
Large Diameter Rollers
168, 194 and 219 mm heavy rollers can be arranged on wooden pallets, wrapped with protective plastic film and secured for container transportation.
HDPE Rollers
HDPE rollers can be separated with cushioning materials to reduce surface collision and deformation during handling.
Storage Requirements
Rollers should be stored horizontally on pallets with a recommended stacking height of no more than 1.2 m. Outdoor storage should use waterproof covering and avoid prolonged exposure to rain and direct sunlight.
How to Select the Correct Conveyor Roller
For an accurate roller selection, buyers should provide the matched conveyor belt width, required roller outer diameter, roller type, working environment, material characteristics and order quantity. For impact applications, material lump size and loading height are also important because they determine the required impact absorption capacity.
YUFENG can recommend a suitable roller configuration based on these operating parameters and provide a factory quotation according to the confirmed specification.
YUFENG Roller Manufacturing Support
YUFENG manufactures industrial rollers and related bulk material handling components for mining, cement, port, chemical and other conveying applications. The product range covers standard steel rollers, HDPE rollers, PU impact rollers and specialized roller configurations for different conveyor structures.
For bulk orders, YUFENG provides specification confirmation, customized processing, raw material inspection, factory testing, export packaging and technical support. Conveyor rollers can also be supplied together with conveyor belts, brackets, rubber accessories and HDPE pipeline products for coordinated project procurement.
Request a Roller Quotation
To receive an accurate quotation, please provide the matched conveyor belt width, roller outer diameter, roller type such as trough, impact, self-aligning or return, working environment, total quantity and destination port. If available, conveyor frame drawings or existing roller dimensions can also be provided for specification matching.
YUFENG Global Contact Information
Email: jayce@yuphengbelt.com
WhatsApp / WeChat / Mobile: +86 15318787602
Factory Address: Xiagou Village, ETDZ, Qingdao, Shandong, China
- View as
Troughing Idler Roller
Built for heavy-duty bulk material conveying, YUFENG Troughing Idler Roller provides stable belt support and load carrying for mining, thermal power, cement, grain and port conveyor systems. Manufactured to CEMA, ISO and MT/T 821 standards, it features multi-layer labyrinth sealing to protect bearings from dust, water and slurry. Available in 20°, 35° and 45° trough angles for customized conveying requirements.
Equal Length Troughing Idler Roller
Symmetrical three-roller support makes YUFENG Equal Length Troughing Idler Roller a reliable carrying solution for bulk material conveyors. Designed for mining, thermal power, cement, grain and port applications, it features multi-layer labyrinth sealing to protect internal bearings from dust, water and slurry. Available with 20°, 35° and 45° trough angles for stable, high-capacity conveying.
Heavy Duty Troughing Idler Roller
Engineered for high-tonnage bulk material conveying, YUFENG Heavy Duty Troughing Idler Roller features a reinforced 3-roller bearing frame and advanced sealing system for harsh mining, power, cement and port environments. With 20°, 30°, 35° and 45° trough angle options, it supports higher conveying capacity while reducing material spillage and protecting bearings from dust, slurry, salt fog and heat exposure.
Self-Aligning Troughing Idler
This industrial Self-Aligning Troughing Idler adopts a 3-roller trough structure mounted on a free-pivoting central base, paired with side limit guide rollers to deliver continuous real-time belt centering without manual adjustment. It serves as a mandatory auxiliary component for long-span conveyors over 80 meters, widely deployed in open-pit mining, grain storage terminals, aggregate quarries, thermal power coal yards and coastal bulk cargo ports, extending the overall service life of conveyor belts by up to 45% and cutting material spillage caused by misalignment below 0.35%.
Flat Return Idler Roller
Supporting the return side of belt conveyors, YUFENG Flat Return Idler Roller provides smooth belt guidance and reliable low-resistance operation for mining, cement, grain and bulk material handling systems. With full-process quality control from steel tube processing to dynamic balancing, it helps reduce uneven belt wear and maintain stable conveyor performance across light, medium and heavy-duty applications.
Spiral Return Idler Roller
Self-cleaning performance makes YUFENG Spiral Return Idler Roller ideal for conveyors handling wet, sticky and buildup-prone materials. Its spiral structure helps remove adhering material from the belt return surface, reducing belt deviation, cleaning downtime and maintenance needs. Field-tested in coal, cement, port and thermal power applications, it provides stable long-term support for heavy-duty conveying systems.
YUFENG is a professional Conveyor Roller manufacturer and supplier in China. We have an experienced sales team, professional technicians, and an after-sales service team.
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