Direct supply from Hebei Boao Rubber Technology Co., Ltd. Engineering high-load carrying capacities with optimized elongation resistance.
In modern industrial settings, bulk material transportation demands systems that operate with minimum downtime, high efficiency, and the capacity to span across long distances. Ordinary steel cord conveyor belts represent the backbone of heavy material transportation. Unlike textile-reinforced belts, steel cord belts offer minimal elongation under maximum tension. This makes them the primary preference for high-load, long-distance overland conveying networks in deep-shaft mines, ironworks, quarries, and logistics terminals.
The manufacturing process in China has shifted towards highly integrated raw materials and advanced vulcanization control. Leading facilities like Hebei Boao Rubber Technology Co., Ltd. produce steel cord belt series that withstand massive dynamic impacts, severe shear stresses, and varying thermal fluctuations. Utilizing high-tensile galvanized steel cords bonded to high-adhesion elastomeric matrices, the steel cord core guarantees structural integrity where synthetic fiber plies fail.
Ensures short take-up strokes during long-distance transmission, minimizing the footprint and construction costs of tensioning stations.
Formulated to support substantial structural loads under high operating speeds without internal cable breakage.
Chemically treated skim rubber forms a high-strength bond with the steel wire rope core, preventing cover stripping and core separation.
Understanding the engineering metrics behind ordinary steel cord conveyor belts helps material handling engineers choose the optimal dynamic rating.
| Specification / Belt Type (DIN 22131) | ST 630 | ST 1000 | ST 1600 | ST 2000 | ST 3150 |
|---|---|---|---|---|---|
| Max. Tensile Strength (N/mm) | 630 | 1000 | 1600 | 2000 | 3150 |
| Max. Cord Diameter (mm) | 3.0 | 4.0 | 5.0 | 6.0 | 8.1 |
| Cord Pitch (mm) | 10.0 | 12.0 | 12.0 | 12.0 | 15.0 |
| Approx. Belt Thickness (mm) | 14.0 | 16.0 | 18.0 | 20.0 | 24.0 |
| Approx. Weight (kg/m²) | 17.5 | 22.1 | 26.5 | 30.2 | 42.5 |
The standard composition of our steel cord conveyor belts includes open-mesh, high-tensile carbon steel cables placed in a parallel plane inside the belt. This configuration permits excellent penetration of the custom-formulated core rubber between the individual steel wires, maximizing dynamic vulcanized bonding. Our high-performance cover layers are compounded to resist severe mechanical wear, weathering, heat, and moisture, conforming directly to international standards such as DIN 22131, AS 1333, ISO 15236, and JIS K6369.
Hebei Boao Rubber Technology Co., Ltd. is located in the Rubber Industrial Park of Boye County, Baoding, Hebei Province. Founded in 2004, the company spans over 30 acres, hosting highly modern production machinery designed for rolling, forming, vulcanizing, and testing rubber components. We distribute under the flagship "Jinao" brand, representing professional product development, engineering research, product design, and dedicated industrial sales services.
We believe in strict quality boundaries. The factory is equipped with an independent chemical analysis lab and a physics testing laboratory to run continuous tests from raw polymer inspection to finished belt evaluation. Our motto is built on a clear quality filter: no unqualified raw materials enter our compounding lines, and no finished conveyor belts leave our facility without meeting full quality requirements.
We provide full-lifecycle care for material handling infrastructures, delivering expert field services and stock management.
Planned scheduling for replacements, precision splicing, routine physical inspections, proactive preventative maintenance, and rapid-response emergency repair for conveyor belt installations.
Ensuring safety stocks are maintained at proper storage metrics, performing joint hot-vulcanized bonding, rubber surface maintenance, structural belt alignment, and daily condition inspections.
Our standard is simple: lower the system friction coefficient, maximize belt life-cycles, decrease energy draw, and build a reliable, win-win engineering ecosystem with our long-term clients.
Jinao brand conveyor belts are applied across major heavy industrial zones, including metal mines, cement plants, steel mills, and coal power systems.
Reliable overland conveyor networks under high abrasive loads.
Beyond steel cord belting, Hebei Boao designs specialized rubber materials to solve heat, cold, chemical, and incline transport challenges.
Constructed with polyester warp and polyamide weft fabrics, providing lightweight, low-elongation performance under standard operating loads.
Engineered with reinforced edge sealing, reducing belt wear and materials spillage along complex conveying paths.
Designed for dust-free, fully enclosed transportation of bulk powder materials, adapting to complex spatial curves.
Engineered with heat-vulcanized covers to withstand continuous material temperatures ranging from 120°C to over 200°C.
Retains superior flexibility and cracking resistance at low temperatures down to -50°C, perfect for sub-zero locations.
Polyamide fabric provides high elasticity, superior fatigue life, impact resistance, and excellent troughing properties.
Ensuring zero defects through systematic molecular testing, tension checks, and dynamic wear analysis.
Automated calendering and layer alignment.
High-precision tension control systems for cords.
Computerized weighing of raw polymers and additives.
Measures exact adhesion levels between rubber and cords.
Tests raw wire bonding resistance to shear strain.
Simulates millions of cycles over small conveyor pulleys.
As heavy industry evolves toward digitisation, conveying lines are integrating sensing mechanisms to track real-time stress levels. Our future engineering layout covers the implementation of fiber-optic and electromagnetic sensors placed directly within ordinary steel cord conveyor belts. This allows processing plants to detect cord breaks, temperature hikes, or cover cracks immediately, preventing unplanned shut-downs.
Additionally, green manufacturing processes guide our development of Energy Efficient Rubber (EER) compounds. EER lowers indentation rolling resistance as the belt rides over support rollers, reducing the power draw of industrial conveying systems by up to 15%. Selecting Boao means partnering with an eco-conscious provider committed to smart, energy-efficient operations.
Get professional answers to common questions about selection, installation, and maintenance parameters.
Steel cord conveyor belts are essential for high-tension, long-distance conveying because they offer very low elongation. While fabric belts require large mechanical tension loops due to stretching under high loads, steel cord belts maintain shape stability. This saves space, protects heavy gear boxes, and ensures smooth operation over kilometers of bulk transport.
We test adhesion levels using a specialized Steel Cord Pull-out Machine and Dynamic Peeling Tester in our factory. This checks the physical chemical grip between the zinc-plated steel cords and our custom core rubber. High adhesion values prevent water seepage and stop rust from spreading along internal cables, even if the outer rubber is cut.
We supply rubber covers matching international standard grades: DIN Grade X for high abrasion and impact resistance, Grade Y for normal abrasive operations, and Grade W for highly abrasive materials like sinter and coke. We also customize compounds for flame-retardant (mining safety), oil-resistant, and acid-alkali resistant needs.
Because steel cords are stiffer than fabric plies, they require larger drive and return pulleys to avoid bending stress. The recommended diameter depends on the cord thickness (ST rating) and belt tension. Generally, ST1000 belts require a drive pulley diameter of at least 630mm to prevent core fatigue over time.
Explore our full range of heavy-duty industrial belts, specialized rollers, and wear-resistant accessories.
Consult with our engineering department to match cover rubber configurations, steel cord specs, and dynamic splicing options to your facility load parameters.
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Boao Rubber