English
- English
- Español
- Português
- русский
- Français
- 日本語
- Deutsch
- tiếng Việt
- Italiano
- Nederlands
- ภาษาไทย
- Polski
- 한국어
- Svenska
- magyar
- Malay
- বাংলা ভাষার
- Dansk
- Suomi
- हिन्दी
- Pilipino
- Türkçe
- Gaeilge
- العربية
- Indonesia
- Norsk
- تمل
- český
- ελληνικά
- український
- Javanese
- فارسی
- தமிழ்
- తెలుగు
- नेपाली
- Burmese
- български
- ລາວ
- Latine
- Қазақша
- Euskal
- Azərbaycan
- Slovenský jazyk
- Македонски
- Lietuvos
- Eesti Keel
- Română
- Slovenski
- मराठी
- Srpski језик
Impact Idler Roller Factory Direct Supply for Mining and Quarry Conveyor Systems
YUFENG Impact Idler Roller, also known as buffer idler or shock-absorbing conveyor roller, is installed at the feeding and blanking points of belt conveyors to absorb the impact generated when bulk materials fall onto the conveyor belt. The roller combines a steel or HDPE shell with elastic rubber or polyurethane buffer components to distribute impact forces and reduce concentrated stress on the conveyor belt and supporting structure.
YUFENG provides segmented rubber ring, integral PU lagging, HDPE, trough impact, galvanized and flame-retardant anti-static impact idlers for mining, cement, aggregate, port, chemical and coal handling systems. Roller diameter, buffer material, rubber ring thickness, hardness, sealing structure and bearing configuration can be selected according to belt width, material lump size, drop height and working environment.
Types by Buffer Structure
Segmented Rubber Ring Impact Idler
The segmented rubber ring impact idler consists of multiple independent elastic rubber rings arranged around the roller body. The separate-ring structure allows an individual damaged ring to be replaced without necessarily replacing the complete roller, making it suitable for general mine, quarry and medium-impact loading stations.
Integral PU Lagging Impact Idler
The integral PU impact idler uses a continuous polyurethane buffer layer around the roller. The one-piece construction reduces ring displacement and provides wear resistance for applications involving large material lumps, greater drop heights and repeated heavy impact.
HDPE Shell Impact Idler
The HDPE impact idler uses a plastic roller shell with a suitable buffer structure for corrosive environments. Its non-metallic surface avoids conventional steel rust and can be considered for coastal ports, chemical plants and other salt-fog or moisture-exposed loading areas.
| Roller Type | Core Characteristic | Applicable Working Condition |
|---|---|---|
| Segmented Rubber Ring Impact Idler | High shock absorption and replaceable individual rings | General mine and quarry medium-impact loading points |
| Integral PU Lagging Impact Idler | Wear-resistant one-piece buffer layer with stable positioning | High-drop and heavy lump material loading areas |
| HDPE Shell Impact Idler | Rust-free and resistant to selected corrosive environments | Coastal ports and chemical plant loading areas |
Configurations for Different Conveyor Sections
Segmented Rubber Ring Impact Idler Roller
Multiple independent rubber rings provide distributed elastic cushioning at the loading point. When a ring becomes damaged or worn, the replaceable-ring structure can simplify maintenance compared with replacing the complete roller assembly.
Integral PU Lagging Impact Idler Roller
The continuous PU outer layer provides a uniform impact-buffering surface and is suitable for large lump materials that generate repeated concentrated impact. Its one-piece construction avoids the lateral movement that may occur with separate rings.
Trough Impact Idler Group
The 30°, 35° or 45° three-roller trough impact arrangement increases the supported belt area while distributing the material impact across multiple roller positions. It is suitable for wide and heavy-duty conveyor belts handling large quantities of bulk materials.
Hot-Dip Galvanized Impact Idler
The galvanized steel surface provides additional corrosion protection for outdoor and humid loading areas. It can be used at open-air stockyards, aggregate plants and other locations where the roller is exposed to atmospheric moisture.
HDPE Anti-Corrosion Impact Idler Roller
The HDPE shell eliminates metal surface rust and can be selected where salt spray, humidity or selected chemical media may affect conventional steel rollers. It is suitable for coastal wharves and chemical material loading stations.
Flame Retardant Anti-Static Impact Idler
This configuration combines a conductive buffer material with flame-retardant properties for applicable underground coal mine loading areas. The specific roller and supporting system should be selected according to the mine's applicable safety requirements.
Specifications
Roller Diameter
YUFENG provides standard impact idler outer diameters of 76, 89, 108, 114, 133, 168, 194 and 219 mm. Diameter selection should consider belt width, belt speed, impact load and the conveyor frame design.
Matched Conveyor Belt Width
The roller series can be matched with conveyor belt widths of approximately 500–2400 mm. Roller length, shaft dimensions and buffer arrangement can be customized according to the conveyor structure.
Buffer Ring Thickness and Hardness
The thickness and hardness of rubber or PU buffer components can be adjusted according to material lump size, drop height and expected impact intensity.
Conveyor Frame Compatibility
YUFENG Impact Idler Rollers can be configured for DTII, TD75 and CEMA-type conveyor frames. Existing frame drawings or roller dimensions can be provided for replacement and project matching.
Impact Absorption and Roller Design
Elastic Buffer Layer
The rubber or polyurethane buffer layer provides elastic deformation when bulk material falls onto the belt, reducing the direct transmission of impact energy to the belt carcass and supporting structure.
Distributed Impact Support
Using several impact rollers across the loading area distributes the impact force instead of concentrating the entire load at one point. The number and spacing of rollers should be determined according to material weight, drop height and conveyor design.
Roller Concentricity
Accurate machining of the tube and shaft helps maintain stable roller rotation under heavy loading. YUFENG specifies roller shell concentricity of ≤0.5 mm for the referenced standard configuration.
Bearing Protection
Multi-stage labyrinth and rubber contact sealing systems help protect the bearing cavity from dust, water and material contamination during operation at bulk loading stations.
Customization Options
Buffer Material
YUFENG provides natural rubber buffer rings, integral PU polyurethane layers and HDPE-based configurations according to impact, wear and corrosion requirements.
Roller Shell Material
Q235 carbon steel and 304 stainless steel shell options are available. HDPE shell configurations can also be selected for corrosion-sensitive environments.
Surface Treatment
Electrostatic coating and hot-dip galvanizing are available for steel roller shells, while PU or rubber outer structures can be supplied according to the selected impact configuration.
Sealing System
Double or triple composite nylon labyrinth sealing structures can be configured with rubber contact seals to improve dust and water protection around the bearing assembly.
Bearing Configuration
Domestic high-precision bearings or imported SKF/FAG C3-clearance bearings can be selected according to continuous operating requirements and customer specifications.
Special Environmental Configuration
Low-temperature-resistant or flame-retardant anti-static buffer materials can be specified for cold-region and underground mining applications according to the required working conditions.
Materials and Quality Control
Roller Shell
Standard steel impact idlers use Q235 high-frequency ERW steel tube, while HDPE models use virgin HDPE material. Shell dimensions and wall thickness can be matched to the specified impact load.
Roller Shaft
The shaft uses 45# cold-drawn solid round steel in the standard configuration, providing resistance to bending under repeated impact and radial loads.
Buffer Material
High-elastic natural rubber or wear-resistant polyurethane raw material is selected according to the required shock absorption and abrasion performance.
Bearing
C3-clearance deep-groove ball bearings provide the rotating support for the roller assembly. Bearing selection influences running resistance, heat generation and service life.
Sealing Components
High-toughness nylon labyrinth rings and weather-resistant nitrile rubber seals are used to help protect the bearing cavity from dust and moisture.
Incoming Material Inspection
Steel tubes, shafts, bearings and buffer materials are sampled for applicable rotation, dimensional, aging and impact-related properties before entering the assembly workshop.
Performance Indicators
| Performance Item | Standard Requirement | Test Standard |
|---|---|---|
| Rotation Resistance Coefficient | ≤0.008 | ISO 15365 |
| Dust & Water Protection 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 |
| Rubber Buffer Ring Abrasion Loss | ≤1.0 cm³/1.61 km | ISO 4649 |
| Bearing Anti-Aging Time | ≥500 h high-temperature aging test | Internal Lab Test |
Actual impact absorption, service life and load capacity depend on roller diameter, buffer material, hardness, belt width, material lump size, drop height, conveying speed and operating environment.
Installation and Replacement
New Feeding Frame Installation
The impact idler support frame is fixed at the designed blanking position. Both roller shaft ends are aligned with the support brackets and locked with the specified pins or bolts. The complete group should rotate freely before the conveyor is placed into operation.
Impact Idler Group Arrangement
For high-drop crusher feeding points, approximately three to five groups of impact idlers can be arranged within about 5 m of the loading area to distribute concentrated material impact. The exact arrangement should be determined according to the conveyor design.
Buffer Ring Replacement
For segmented rubber-ring configurations, a damaged individual buffer ring can be replaced when the roller structure permits. If the roller tube, shaft or bearing is damaged, the complete roller assembly should be replaced.
Safety During Replacement
The conveyor must be stopped and isolated from its power source before impact idler maintenance. After installation, roller rotation, shaft locking and belt alignment should be checked before restarting the equipment.
Applications by Loading Condition
Crusher Feeding Points
Impact idlers are commonly installed below crusher discharge points where large stones or ore can fall from a significant height and generate concentrated impact on the conveyor belt.
Mining and Quarrying
Segmented rubber and PU impact idlers can be selected for ore, aggregate and stone handling systems according to material lump size, loading height and conveyor capacity.
Cement and Aggregate Plants
Impact roller groups can support conveyor sections receiving limestone, clinker, gravel and other bulk materials from crushing or screening equipment.
Coastal and Chemical Loading Areas
HDPE impact idlers can be considered where salt spray, humidity or selected chemical media create a corrosion risk for conventional steel components.
Underground Mining
Applicable flame-retardant and anti-static impact idler configurations can be supplied for underground loading points where the conveyor system must meet relevant mine safety requirements.
Standards and Quality Documentation
Conveyor Industry Standards
YUFENG Impact Idler Rollers are manufactured with reference to CEMA, GB/T10595 and ISO15365 requirements for conveyor equipment and roller performance.
Safety Requirements
Rollers for underground mining applications can be configured according to relevant coal mine safety requirements. The applicable certification depends on the specific product structure and project requirements.
Export Documentation
Available documentation can include ISO9001 quality management certification, CE export documentation, SGS raw material inspection reports, coal mine safety test documents, and factory impact-resistance and service-life test reports according to the product configuration.
Matching Conveyor System Products
Conveyor Belt Series
YUFENG can supply Fabric Conveyor Belt, Steel Cord Conveyor Belt, Sidewall Conveyor Belt, Pipe Conveyor Belt, Patterned Conveyor Belt and Rough Top Conveyor Belt for complete bulk material handling systems.
Other Conveyor Rollers
Supporting rollers include trough carrying idlers, return idlers, self-aligning idlers and corresponding support brackets for different conveyor sections.
Rubber Accessories
Wear-resistant rubber sheets, conveyor skirting rubber, vulcanization repair adhesives and patch kits can be supplied for installation and maintenance.
HDPE Pipeline Series
HDPE Water Pipe and HDPE Dredge Pipe can be supplied for auxiliary water and slurry transportation in mining and industrial projects.
Custom Processing
Roller diameter, shell wall thickness, buffer hardness, rubber ring dimensions and sealing structure can be adjusted according to customer working drawings and impact conditions.
Packaging and Storage
Small Diameter Impact Rollers
76, 89 and 108 mm impact rollers can be bundled with steel wire, fitted with protective caps on both shaft ends and packed in solid wooden cases for transportation.
Large Heavy Impact Rollers
168, 194 and 219 mm impact rollers can be arranged on wooden pallets, protected with plastic film and secured to reduce surface damage and movement during container transportation.
HDPE Impact Idlers
HDPE impact rollers can be separated with foam or other cushioning materials to prevent collision and surface damage during loading and unloading.
Storage Requirements
Impact rollers should be stored horizontally on pallets with a stacking height of no more than 1.2 m. Rubber and PU buffer components should be protected from prolonged direct sunlight, high temperatures, rainwater and other conditions that may accelerate material aging.
How to Select the Correct Impact Idler Roller
Material Drop Height
The material drop height is an important parameter because higher falling distances generate greater impact energy. The buffer material and impact roller arrangement should be selected according to the actual loading height.
Material Lump Size
Large and sharp lump materials require stronger impact absorption and may be better suited to PU or reinforced rubber impact structures than standard rollers.
Conveyor Belt Width
Provide the conveyor belt width and existing frame dimensions so that the roller length, diameter, shaft configuration and support structure can be matched correctly.
Working Environment
Humidity, salt spray, chemical exposure, outdoor installation and temperature should be considered when selecting carbon steel, galvanized steel, stainless steel, HDPE or specialized buffer materials.
Required Maintenance Method
Segmented rubber ring designs can be considered where replaceable buffer rings are preferred, while integral PU configurations may be more appropriate when a continuous wear-resistant outer layer is required.
Request an Impact Idler Roller Quotation
Required Technical Parameters
For an accurate factory quotation, provide the matched conveyor belt width, roller outer diameter, impact idler type, material drop height, material lump size, working environment, total order quantity and target delivery port.
YUFENG technical engineers can evaluate the appropriate roller diameter, shell material, buffer structure, bearing, sealing system and support frame according to the loading conditions.
YUFENG Global Contact Information
jayce@yuphengbelt.com
WhatsApp / WeChat / Mobile
+86 15318787602
Factory Address
Xiagou Villege, ETDZ, Qingdao, Shandong, China
- View as
Rubber Ring Impact Idler Roller
Protecting conveyor belts from heavy material impact, YUFENG Rubber Ring Impact Idler Roller uses segmented elastic rubber rings to absorb shock and distribute loading-zone pressure more evenly. Its triple-layer labyrinth sealing helps protect bearings from dust and water, while reliable operation from -30°C to +80°C makes it suitable for coal, quarry, cement, power and port conveyors handling high-drop-height bulk materials.
Heavy Duty Impact Idler Roller
Engineered for extreme loading conditions, YUFENG Heavy Duty Impact Idler Roller provides powerful shock absorption and belt protection in high-drop, heavy-material conveying zones. Its thickened steel pipe structure, multi-row elastic buffer rings and advanced sealing system deliver high load capacity, impact resistance and reliable operation from -35°C to +85°C. Customized diameters, lengths, rubber ring thickness and spacing are available for mining, cement, power and port applications.
YUFENG is a professional Impact Idler Roller manufacturer and supplier in China. We have an experienced sales team, professional technicians, and an after-sales service team.
News Recommendations
