ZOOMRY
1. Product Details
In terms of the overall project required for the design of a belt conveyor system, conveyor rollers constitute a significant investment. ZOOMRY gives careful consideration to each manufacturing stage — from initial research to design, from production to exact laboratory tests using specifically created machinery to examine roller performance.
Roller bearings are protected by an effective sealing system and made of highly selected materials like steel and thermoplastic, enabling them to withstand environmental stresses like dust, dirt, water, low, and high temperatures. All recognized national and international standards — including ISO, UNI, DIN, AFNOR, FEM, BS, JIS, SANS, and CEMA — are followed in manufacturing. For corrosive environments, HDPE rollers offer extended service life in salt and chemical applications.
2. Why Choose ZOOMRY Conveyor Rollers?
Advanced Sealing Performance — Multi-labyrinth seal prevents dust and moisture ingress in mining and coal preparation environments.
High-Quality Raw Materials — Q235 carbon steel, ceramic, and polymer options selected for durability. For abrasive applications, steel rollers with precision-welded shells provide extended wear life.
Strict Quality Control — Automated assembly line with comprehensive testing ensures consistent quality across all Conveyor idlers.
Customized Solutions — Tailored roller configurations meet diverse operational requirements across metallurgy, coal, hydropower, building materials, chemical, and port industries.
3. Quality Indicators for Conveyor Rollers
Eight key indicators measure the quality of conveyor rollers and directly affect Conveyor Belt service life and system efficiency:
1. Radial Runout — Directly affects material conveying stability.
2. Axial String Momentum — Directly affects roller service life.
3. Flexibility — Affects roller life, belt life, and driving power.
4. Waterproof Performance — Affects roller service life in wet environments.
5. Dustproof Performance — Affects roller service life in dusty conditions.
6. Axial Bearing Capacity — Affects roller service life under heavy loads.
7. Impact Resistance — Affects roller service life at loading points. Impact rollers provide additional protection for high-impact zones.
8. Rotation Resistance — Affects belt service life and energy consumption.
4. Material Design Codes and Standards
ZOOMRY manufactures conveyor rollers from internationally certified materials, with full traceability across GB, ASTM, JIS, and EN standards. The table below provides a cross-reference of commonly used material grades:
| Description | GB | ASTM | JIS | Remark |
|---|---|---|---|---|
| Carbon Steel | Q235B | A36 | SS41(SS400) |
|
| Carbon Steel (Machine Structural) | 20 | A1020 | S20C |
|
| 45 | A1045 | S45C |
|
|
| Alloy Steel (Cr-Mo) | — | A4140 | SCM440 |
|
| Q345 | A573 Gr.70 | SM490 |
|
|
| Q345B | A992 | SM490 |
|
|
| 40Cr | A5140 | SCr440 |
|
|
| — | A534-B20 | — | 18CrNiMo7-6 (EN10084) | |
| Wear Resistant Steel | NM400 | AR400 | AR400 |
|
| Stainless Steel | 0Cr18Ni9 | A276-304 | SUS304 |
|
| 00Cr17Ni14Mo2 | A276-316 | SUS316 |
|
5. Roller Specifications
Bearing Idler / Buffer Idler
| Type | Bearing | Length (mm) | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 160 | 200 | 250 | 315 | 380 | 465 | 530 | 600 | 670 | 750 | 800 | 900 | 950 | 1050 | 1120 |
|
||
| 89mm | 6204 | ✓ | ✓ | ✓ | ✓ | ✓ | — | — | — | — | — | — | — | — | — | — | — |
| 6205 | ✓ | ✓ | ✓ | ✓ | ✓ | — | — | — | — | — | — | — | — | — | — | — | |
| 108mm | 6204 | — | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | — | — | — | — | — | — | — | — | — |
| 6205 | — | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | — | — | — | — | — | — | — | — | — | |
| 6305 | — | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | — | — | — | — | — | — | — | — | — | |
| 6306 | — | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | — | — | — | — | — | — | — | — | — | |
| 133mm | 6205 | — | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | — | — | — | — | — |
| 6305 | — | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | — | — | — | — | — | |
| 6306 | — | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | — | — | — | — | — | |
| 159mm | 6305 | — | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | — | — | — | — | — |
| 6306 | — | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | — | — | — | |
| 6307 | — | — | — | — | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | — | |
| 6308 | — | — | — | — | — | — | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | — | — | |
| 194mm | 6307 | — | — | — | — | — | — | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | — | — |
| 6308 | — | — | — | — | — | — | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | — | — | |
| 6309 | — | — | — | — | — | — | — | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | — | — | |
Return Idler / Spiral Idler
| Type | Bearing | Length (mm) | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 750 | 950 | 1150 | 1400 | 1600 | 1800 | 2000 | 2200 | 2500 | 2800 | 3000 | 3150 | 3350 |
|
||
| 89mm | 6204 | ✓ | ✓ | ✓ | — | — | — | — | — | — | — | — | — | — | — |
| 6205 | ✓ | ✓ | ✓ | — | — | — | — | — | — | — | — | — | — | — | |
| 108mm | 6204 | ✓ | ✓ | ✓ | ✓ | ✓ | — | — | — | — | — | — | — | — | — |
| 6205 | ✓ | ✓ | ✓ | ✓ | ✓ | — | — | — | — | — | — | — | — | — | |
| 6305 | ✓ | ✓ | ✓ | ✓ | ✓ | — | — | — | — | — | — | — | — | — | |
| 6306 | ✓ | ✓ | ✓ | ✓ | ✓ | — | — | — | — | — | — | — | — | — | |
| 133mm | 6205 | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | — | — | — | — | — | — | — |
| 6305 | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | — | — | — | — | — | |
| 6306 | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | — | — | — | — | — | |
| 159mm | 6305 | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | — | — | — | — | — |
| 6306 | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | — | — | — | |
| 6307 | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | — | — | — | |
| 6308 | — | — | — | — | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | — | — | — | |
| 194mm | 6307 | — | — | — | — | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | — |
| 6308 | — | — | — | — | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | — | |
| 6309 | — | — | — | — | — | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | — | |
Related Solutions
How to Select the Right Conveyor Roller Material and Specification?
Tell us your operating environment, belt width, and material characteristics — our engineers will recommend the optimal roller configuration.
Conveyor Roller Selection Help →
