Hebei BAO’s Steel Cord (ST) Belting is the premium choice for systems demanding the highest performance and stability. Its core function is to handle long-distance transport and high vertical lifts that exceed the capability of standard textile-reinforced belts. The internal structure is defined by high-strength, galvanized steel cables embedded longitudinally within a specialized rubber carcass. This architecture provides the key benefit of minimal belt elongation, ensuring stable, high-tension operation, which drastically reduces downtime associated with retensioning and maximizes the system’s overall service lifespan.
Key Features
- Extreme Tensile Strength Capacity
- Low Elongation, High Stability
- Precision Cord Alignment (X-Ray)
- Superior Impact and Tear Resistance
- Excellent Deep Troughability
- Certified Long Service Life
Applications & Industries
Deep Pit & Surface Mining
Iron Ore, Copper, Gold, Coal Extraction.
High-Volume Port Terminals
Ship Loading/Unloading and Material Stacking Systems.
Power Generation Plants
Heavy-Duty Coal and Ash Handling Systems.
Metallurgical & Steel Production
Hot Material Transport (with special heat-resistant compounds).
| Belt Type | Max. Working Tension (N/mm) | Longitudinal Tensile Strength (N/mm) | Max. Width (mm) | Steel Cord Diameter (mm) | Cord Pitch (mm) | Top / Bottom Cover Thickness Range (mm) | Approx. Weight (kg/m²) |
|---|---|---|---|---|---|---|---|
| ST 630 | 90 | 630 | 3300 | 3.0 - 3.5 | 10.0 - 12.0 | 4 - 8 / 4 - 6 | 18.5 |
| ST 800 | 115 | 800 | 3300 | 3.5 - 4.0 | 10.0 - 12.0 | 4 - 8 / 4 - 6 | 21.0 |
| ST 1000 | 145 | 1000 | 3300 | 4.0 - 4.5 | 12.0 - 13.5 | 5 - 10 / 5 - 8 | 24.5 |
| ST 1250 | 180 | 1250 | 3300 | 4.5 - 5.0 | 12.0 - 13.5 | 5 - 10 / 5 - 8 | 27.0 |
| ST 1600 | 230 | 1600 | 3300 | 5.0 - 6.0 | 12.0 - 15.0 | 6 - 12 / 6 - 8 | 32.0 |
| ST 2000 | 290 | 2000 | 3300 | 6.0 - 7.0 | 12.0 - 15.0 | 6 - 12 / 6 - 8 | 39.5 |
| ST 2500 | 360 | 2500 | 3300 | 7.0 - 8.0 | 15.0 - 16.0 | 8 - 14 / 6 - 10 | 46.0 |
| ST 3150 | 450 | 3150 | 3300 | 8.0 - 9.5 | 15.0 - 18.0 | 8 - 16 / 8 - 12 | 53.0 |
| ST 3500 | 500 | 3500 | 3300 | 9.0 - 10.5 | 16.0 - 18.0 | 10 - 18 / 8 - 12 | 59.0 |
| ST 4000 | 570 | 4000 | 3300 | 10.0 - 11.5 | 18.0 - 20.0 | 10 - 20 / 10 - 14 | 65.0 |
| ST 4500 | 645 | 4500 | 3300 | 11.0 - 12.5 | 18.0 - 21.0 | 12 - 20 / 10 - 14 | 72.0 |
| ST 5000 | 715 | 5000 | 3300 | 12.0 - 13.0 | 19.0 - 22.0 | 12 - 20 / 10 - 14 | 78.0 |
| ST 5400 | 775 | 5400 | 3300 | 12.5 - 13.5 | 20.0 - 23.0 | 14 - 25 / 10 - 16 | 85.0 |
| ST 6300 | 900 | 6300 | 3300 | 13.5 - 15.0 | 22.0 - 24.0 | 14 - 25 / 10 - 16 | 94.0 |
| Grade | Description | Tensile Strength (MPa) | Elongation at Break (%) | Abrasion Loss (mm³) | Applications |
|---|---|---|---|---|---|
| W | High Abrasion Resistant | >= 18 | >= 400 | <= 90 | Heavy impact, sharp materials (Copper, Iron Ore). |
| X | Abrasion & Cut Resistant | >= 25 | >= 450 | <= 120 | General heavy-duty mining, large rocks. |
| Y | Standard Service | >= 20 | >= 400 | <= 150 | Coal, cement, sand, gravel. |
| Z | Light Service | >= 15 | >= 350 | <= 250 | Agricultural, light industrial materials. |
| HR (T1/T2) | Heat Resistant | >= 15 | >= 350 | N/A | Cement clinker, sintering, steel plants (120°C - 180°C). |
| OR | Oil Resistant | >= 14 | >= 300 | N/A | Grain, fertilizers, oily machinery parts. |
| Test Item | Unit | Standard Requirement (DIN/ISO) | Boao Internal QA Standard |
|---|---|---|---|
| Rubber-to-Steel Adhesion | N/mm | >= 12 (Dynamic) | >= 15.0 (Enhanced) |
| Penetration | % | >= 95 | 100% Core Penetration |
| Cord Pull-Out Strength | N | Varies by cord diameter | Tested to exceed ISO 15236 limits |
| Fatigue Life (Dynamic) | Cycles | 10000 Cycles | >= 20000 Cycles |
The figures outline our standard performance benchmarks and manufacturing capabilities. As a custom solution provider, BAO specializes in precision engineering; cover thickness, steel cord diameter, cord pitch, and rubber grade are all final negotiable parameters which will be customized and certified to meet your exact project specifications and required standards.
BAO Manufacturing and QC Authority
BAO is an established, large-scale manufacturer rooted in the Boye Industrial Hub, specializing in advanced heavy-duty conveyor systems since 1980. We integrate proprietary R&D and large-format production capacity up to 3300mm to deliver high-quality, technically demanding belting solutions globally.
Customized Process
01
Define Requirements
Client submits all necessary parameters: belt type, ply count, width, and specific environmental details for analysis.
02
Engineering Design
Our engineering team validates technical feasibility and designs the optimal carcass and rubber compound structure.
03
Material Validation
Raw materials are validated in our in-house lab to confirm integrity and performance before production commences.
04
Controlled Production
Manufacturing proceeds under strict QC protocols, utilizing high-capacity presses for a reliable, continuous supply.
05
Final Quality Check
Finished product undergoes comprehensive dimensional and physical property testing to verify compliance with order specifications.
06
Certified Delivery
Product is delivered with a complete quality inspection report, backed by long-term technical support services.
FAQs
1. Can you provide splicing materials and instructions?
Yes, we provide comprehensive splicing instructions, materials, and technical support to ensure the integrity of the splice matches the belt’s original strength.
2. What is the minimum lead time for a custom ST order?
Lead times depend on the complexity and volume of the order. Upon receiving your full specification, our team will provide a guaranteed delivery schedule within 48 hours.
3. Can we request a product sample before placing a large order?
Yes, we provide samples of the cover compound and small-section belt pieces for pre-project technical evaluation. Contact our sales team to arrange the sample delivery.
4. Can you manufacture non-standard sizes outside of the data sheet?
Absolutely. Our manufacturing strength is customization; we specialize in delivering specialized widths (up to 3300mm) and unique thickness combinations as required by your project design.
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our experts are ready to assist with your conveyor belt needs.
Our address:
Daqi Industrial Zone, Boye County, Baoding City, Hebei Province, China
Email us anytime
fiona@baoconveyorbelt.com
+85244631970