Explore our premium selection of heavy-duty industrial conveyor rollers and specialty rubber conveyor belts configured for optimal load distribution and durability.
Hebei Boao Rubber Technology Co., Ltd. is located in the prominent Rubber Industrial Park of Boye County, Baoding, Hebei Province, China. Established in 2004, our facility covers an area of over 30 acres, developing into a leading global supply point for industrial conveyance machinery. Operating under our flagship brand "Jinao", we provide integrated engineering, product formulation, structural design, vulcanization manufacturing, and full-lifecycle business services for high-capacity natural rubber conveyor belts and related machinery hardware.
Over two decades, we have continuously modernized our facilities to include advanced multi-roll calendering, dynamic vulcanization presses, forming systems, and custom testing apparatuses. We have attained certification under international quality management systems, guaranteeing that every meter of rubber belt leaving Boye County withstands the most demanding mining and bulk terminal operations globally.
Unveiling the molecular structure, vulcanization kinetics, and reinforcement geometry behind the legendary longevity of Jinao's natural rubber compound formulations.
Our EP (Polyester-Nylon) fabrics offer optimal dimensional stability under high tension. By utilizing a warp of polyester fiber and a weft of polyamide, Jinao EP belts exhibit minimal elastic elongation under continuous loads, preventing sag between idlers.
Engineered for shock absorption and impact resistance, polyamide (NN) carcasses feature supreme mechanical memory. NN is the preferred structural reinforcement for quarries handling run-of-mine materials with dynamic loading points.
For high-distance overland transport, steel cord matrices represent the pinnacle of load-bearing geometry. Our anti-tear steel wire rope cores feature high zinc-alloy adhesion coating to resist longitudinal tearing in severe mining configurations.
Natural rubber (primarily *cis*-1,4-polyisoprene) provides the optimal matrix for conveyor belts due to its outstanding elasticity, high tear strength, and resilience against mechanical fatigue. However, raw rubber lacks the required thermal stability and tensile modulus. At Jinao, we employ customized vulcanization recipes using precise ratios of sulfur donor accelerators, carbon black reinforcements (grades N220, N330, and N550 depending on cover requirements), and proprietary anti-degradants. The result is a polymeric network that remains flexible down to -40°C in cold-resistant applications while maintaining high resistance to oxidative degradation at elevated operating temperatures.
Standard mechanical parameters for Jinao Natural Rubber Belts matching DIN 22102, ISO 10247, and AS 1332 specifications.
| Cover Grade Classification | Tensile Strength (MPa) | Elongation at Break (%) | Max Volumetric Abrasion Loss (mm³) | Primary Industrial Applications |
|---|---|---|---|---|
| DIN X (Heavy Duty Impact) | ≥ 25 | ≥ 450 | ≤ 120 | Primary Crushed Ores, Large Granite blocks, Heavy Slag |
| DIN Y (General Abrasive) | ≥ 20 | ≥ 400 | ≤ 150 | Coal Handling, Cement Plants, Ash transport, Sand & Gravel |
| DIN W (Extreme Abrasion) | ≥ 18 | ≥ 400 | ≤ 90 | Highly abrasive fine materials, Silica sand, Sinter feed, Cullet |
| Flame Retardant (ISO 340) | ≥ 15 | ≥ 350 | ≤ 200 | Underground Coal Mines, Grain silos, Power generation hoppers |
How we address key operational bottlenecks, procurement risks, and lifecycle requirements across major process industries.
Mining operations require zero unplanned downtime. Our steel-cord and NN-based belts are designed with structural rip-detection layers. Jinao supplies customized energy-efficient covers (low rolling resistance) to minimize power consumption in long-distance subterranean mine shafts.
Handling hot sinter, coke, and slag demands thermal envelope endurance. Our ethylene-propylene-diene monomer (EPDM) and high-grade natural rubber blends withstand continuous material temperatures up to 200°C (and peak spikes of 400°C) without delaminating or cracking.
Fine particles and limestone dust damage typical belts. Jinao's tight crosslink-density rubber formulation prevents abrasive fines from penetrating the outer cover, preventing structural carcass degradation.
We run a zero-tolerance inspection laboratory, matching ISO/IEC 17025 standards to secure consistent mechanical performance.
Validating core-to-cover mechanical adhesion.
Testing bond strength of rubber-to-metal contact.
Evaluating cover performance under cyclic load simulation.
Verifying exact DIN X/Y wear performance indexes.
Our technical service package covers every step, including: planned installation replacement, splicing support, on-site safety stock inspections, and emergency vulcanized repairs. We ensure your system running limits are optimized with proper materials and accessories (electric rollers, ceramic pulleys, impact idlers).
A glimpse into our Boye County facilities where rubber compounds are processed into finished heavy-duty belt systems.
Our solutions are proven in high-stress handling settings, powering major steel, metallurgy, coal, and cement installations.
Sinter & coke transfer line operation under high ambient heat.
Heavy nickel slag transport using custom anti-abrasion belts.
Deep underground mining lines utilizing fire-resistant systems.
Aggregate dosing belt system for high-grade rail bed concrete mixing plants.
Clinker conveying using heat-resistant chemical grade belting.
Flame retardant belts delivering underground bulk safety stability.
Limestone quarry feeder belts with high impact load configurations.
As mechanical demands rise, our R&D roadmap focuses on predictive diagnostic tracking, sustainable elastomer synthesis, and lowering rolling friction coefficients.
Our research focuses on energy saving cover compounds. In cooperation with polymer research laboratories, we optimize visco-elastic recovery to decrease indentation rolling resistance by 12% to 15%, reducing continuous conveyor drive power requirements.
Developing structural sensors integrated directly into the steel core carcass, allowing automated tracking of localized belt wear, splicing integrity, and operating temperatures, and warning control systems prior to failure events.
Transitioning compounding to sustainable processing aids and bio-sourced tackifiers, maintaining required tensile elongation while meeting international demands for eco-balanced raw materials.
Refining polymer chain alignment in specialized cold-resistant models to ensure high rubber elasticity down to -55°C for polar logistics, open-cast mines, and arctic terminal operations.
Get expert technical answers regarding conveyor configuration, belt selection, compounding, and splice methods.
Hebei Boao products conform to international benchmarks including API 6D, API 607, CE, ISO9001, ISO14001, and ISO18001 standards.
Highly resistant natural rubber variants configured for extreme cold, chemical corrosion, and specialized materials handling.
Connect with Jinao's technical support department. Our team provides customized drawings, material compound testing sheets, and global procurement services.
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Boao Rubber