Engineered to handle extreme loads, aggressive chemicals, high temperatures, and abrasive wear with certified reliability.
When engineering bulk material handling structures, selecting the correct elastomeric hardness is critical. A hardness of 60 Shore A is widely recognized as the industry standard benchmark for heavy-duty conveying. It strikes an optimal equilibrium between structural elastic memory, mechanical dampening, and abrasion immunity.
In elastomer technology, Shore A measures the resistance of a vulcanized rubber compound to indentation. A rating of 60 indicates an ideal elastomeric profile: sufficiently pliable to wrap tightly around drive pulleys and transition effortlessly into standard 20°, 35°, and 45° idler profiles, yet strong enough to resist gouging from jagged ores, limestone, coal, and clinker.
"Shore 60 A rubber belts act as an engineered shock absorber. They deform elastically under direct impact to dissipate kinetic energy, then return immediately to their original shape, protecting the inner fabric plies (EP/NN) or steel cord cores."
This durability is derived from cross-linked polymer matrices, typically engineered using blends of Natural Rubber (NR) for high tensile properties, Styrene-Butadiene Rubber (SBR) for cost-efficient wear prevention, or Polybutadiene (BR) for improved low-temperature resilience.
| Performance Characteristic | Shore 60 A (Standard Compound) | Industrial Application Impact | Testing Methodology |
|---|---|---|---|
| Hardness (Shore A) | 60 ± 5 | Optimal pulley grip, reduces slip and structural belt wear | ASTM D2240 / ISO 7619 |
| Tensile Strength (MPa) | ≥ 15 to 25 MPa | Resists longitudinal tear, supports high-tension systems | ASTM D412 / ISO 37 |
| Elongation at Break (%) | ≥ 400% to 550% | Maintains structural integrity under heavy drop-zone impacts | ASTM D412 |
| Abrasion Loss (mm³) | ≤ 90 to 120 mm³ | Extends operating lifespan in abrasive environments | DIN 53516 / ISO 4649 |
| Working Temp. Range | -40°C to +80°C (Standard Class) | Supports extreme outdoor environments (cold storage to desert) | Internal Chamber Testing |
Leading China Factory and Global Supplier for Conveyor Systems and Components since 2004
Located within the Rubber Industrial Park of Boye County, Baoding, Hebei Province, Hebei Boao Rubber Technology Co., Ltd. represents 22 years of excellence in elastomer engineering. Spanning an expansive production zone of over 30 acres, we deliver premium conveyor belting systems and matching metal components under our registered brand, "Jinao".
We are a verified Chinese manufacturer that covers the entire value chain: research, custom formulation compounding, structural design, large-scale calender vulcanization, and global supply chain services. Our plant features specialized production machinery from mixing lines to heavy vulcanizing presses. Our processes are certified under the ISO 9001 quality management framework.
Our raw material testing protocols ensure that only certified rubber compounds enter the production line. Standardized checks monitor physical, chemical, and thermal properties prior to vulcanization.
Equipped with specialized testing instruments including peeling testers, abrasion meters, dynamic fatigue systems, and steel cord pull-out rigs to verify belt durability.
Our transport belts are used nationwide and exported to heavy industries globally, supporting mining operations, iron works, cement production, power stations, fertilizer plants, and grain ports.
A technical overview of the engineering machinery that guarantees "Jinao" conveyor belt performance
Automated Compounding System
Multi-Roll Calendering
Internal Vulcanizing Press
Belt Slitting Machine
Fabric Conveyor Belt Line
Steel Cord Conveyor Line
Mixing Center Room
Mixing Control System
Pneumatic Feeding Device
Shaping Calender
Peeling Adhesion Tester
Steel Cord Pull-out System
Dynamic Fatigue Tester
Abrasion Tester (ISO 4649)
High-Speed Abrasion Tester
Physical Properties Bench
Elastomer Rheometer Test
Choosing a Chinese supplier for industrial rubber belting offers significant logistical and manufacturing advantages, particularly when partnering with specialized manufacturers located in Hebei's Boye Rubber Industrial Zone.
Proximity to regional chemical centers allows us to source polymer additives, carbon black, and accelerators efficiently, helping to reduce material costs.
Our plant operates continuous vulcanizing presses that can produce rolls up to 3200 mm wide, maintaining uniform cure profiles across the entire length of the belt.
Our engineering team can formulate custom compounds to meet specific environmental conditions, such as ozone resistance, anti-static properties, or self-extinguishing behavior.
International procurement teams require detailed quality documentation. At Boao, we support standard inspection documentation, including material test reports (MTRs), ISO certificate tracking, and packaging designed for maritime shipping. Our packaging features heavy-duty steel reels wrapped in UV-resistant protective film to prevent ozone aging during transit.
Shore 60 A rubber belts engineered for diverse industrial sectors
Designed to handle heavy primary ores and aggregate, with high tensile strength that resists structural tearing under impact.
Heat-stabilized formulations designed to carry warm clinker, limestone, and raw materials without cover cracking.
Formulations engineered to handle sinter, coke, and iron ore, balancing mechanical impact absorption and thermal stability.
High-capacity belts designed to operate reliably under variable coastal weather conditions and maritime humidity.
Maintaining high operational efficiency in conveyor systems requires reliable field support. Boao Rubber provides integrated technical support to help optimize belt life and reduce downtime.
Proven operational performance across major industrial groups
Taihang Steel Group
Tsingshan Group
Zijin Mining
China Railway Group Mixing Plant
Conch Cement
Datong Coal Group
Answers to common technical queries from design engineers and procurement teams
Shore 60 A defines the indentation hardness of the vulcanized rubber compound. On the Shore A durometer scale, a value of 60 represents a compound that balances flexibility and hardness. This provides structural elasticity to wrap around pulleys while maintaining resistance to abrasive wear, impact, and mechanical tearing from coarse materials.
Styrene-Butadiene Rubber (SBR) provides good resistance to heat, abrasion, and aging, and is often blended with Natural Rubber (NR). Natural Rubber provides excellent tensile strength, elongation, and tear resistance. Blending both at a Shore 60 A hardness level creates a belt suitable for heavy bulk material handling.
We offer both Polyester-Nylon (EP) and Nylon-Nylon (NN) woven fabrics. EP fabrics feature low elongation under load, which reduces tensioning requirements. NN fabrics provide high flexibility, making them suitable for long-distance, high-impact conveying systems.
Conveyor belts should be stored vertically on heavy-duty wooden or steel reels in a cool, dry, and dark warehouse. Protect the rubber from direct sunlight, moisture, and ozone sources like electric motors to prevent surface cracking and premature degradation.
We can adjust the rubber formulation to meet specific performance requirements. Options include heat-resistant compounds for conveying warm clinker, oil-resistant formulations for wood chips or oil-treated ores, flame-retardant blends for underground mining, and cold-resistant options for sub-zero climates.
Explore our wider range of conveying hardware, heavy-duty belts, and system accessories
Discuss your operational requirements, tensile strength specifications, or request samples of our Shore 60 A rubber compound with our engineering team.
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Boao Rubber