Founded in 2004, Hebei Boao Rubber Technology Co., Ltd. (under the renowned proprietary brand "Jinao") stands as a core tier-1 Chinese manufacturer and supplier specialized in high-performance conveyor belting. Spanning over 30 acres in the Boye County Rubber Industrial Park, Baoding, Hebei Province, our production ecosystem is built on strict scientific standards and complete ISO-compliant vertical integration.
From the initial raw polymer compounding to high-pressure vulcanization presses, we maintain absolute control over the physical and chemical properties of our products. Our facility is equipped with advanced fabric calendering lines, heavy-duty steel cord forming lines, and dedicated analytical laboratories. We cater exclusively to high-stress industrial applications across global trade pathways—specifically in heavy metallurgy, deep mining, automated coal dispatching, marine ports, and chemical processing facilities.
Hebei Boao Rubber Technology Heavy-Duty Vulcanization & Assembly Facility
Procurement officers, structural engineers, and plant managers in bulk handling industries face unique operational challenges. Standard conveyor belts often fail when subjected to long-distance layouts, high incline tensions, or heavy abrasive materials. To optimize system uptime and decrease total cost of ownership (TCO), professional buyers rely heavily on structural, chemical, and physical evaluations of steel cord and high-performance fabric conveyor belts.
Industrial sites require steel wire rope core conveyor belts because they offer virtually zero elongation and are resistant to tears. When handling hot sinter, bulk iron ore, raw coal, or corrosive chemical fertilizers, normal covers wear out quickly. At Boao, we customize the rubber cover compounds to match specific requirements. This includes options for flame retardancy, extreme heat resistance, oil-acid-alkali resistance, and sub-zero temperature tolerance.
Steel wire cord reinforcements provide unmatched structural stability, allowing for single-flight conveyors that extend several kilometers. This design drastically reduces intermediate transfer points and lowers system operational costs.
Boao steel cord belting features zinc-coated steel cords that adhere exceptionally well to specialized rubber compounds. This provides outstanding vulcanized splicing efficiency and prevents cord pull-out issues.
Incorporating transverse reinforcement systems (high-strength nylon mesh or steel breaker cords) above the longitudinal steel wire core prevents severe longitudinal tears caused by trapped metal debris.
Conveyor belt durability depends on the quality of its rubber cover. At Boao, our cover compounds are formulated using premium polymers and curing agents. We offer standard cover grades that comply with international standards such as DIN 22131, AS 1333, and GB/T 9770. Below is a breakdown of our high-durability cover grades designed for heavy-duty applications:
| Cover Compound Class | Standard Reference | Tensile Strength (Min) | Elongation at Break (Min) | Abrasion Loss (Max) | Primary Application Environment |
|---|---|---|---|---|---|
| Grade X (Heavy Duty) | DIN 22131 / AS 1333 | 25 MPa | 450% | 120 mm³ | Heavy impact mining, raw granite rock, large-sized ores, sharp quartz stones. |
| Grade Y (General Abrasive) | DIN 22131 / AS 1333 | 20 MPa | 400% | 150 mm³ | Coal preparation plants, aggregates, limestone quarries, dry cement manufacturing. |
| Grade W (Super Wear) | DIN 22131 / AS 1333 | 18 MPa | 400% | 90 mm³ | Highly abrasive, small particle size materials, sand slag, fine metallurgical minerals. |
| Flame Retardant (FR-Class) | ISO 340 / EN 14973 | 15-18 MPa | 350% | 180 mm³ | Underground coal mines, grain silos, power plant bulk fuel feeds (self-extinguishing). |
| Heat Resistant (HR-T3/T4) | ISO 4195 | 15 MPa | 350% | 200 mm³ | Sintered iron ore, metallurgical clinker, cement plant cooling lines (up to 200°C/392°F). |
Heavy Duty Multi-Station Steel Cord Calendering and Curing Production Line
At Hebei Boao Rubber Technology, we understand that a high-performance conveyor system is only as reliable as its weakest joint. Splices in steel cord conveyor systems are subject to significant dynamic stress. Because of this, we don't just supply products—we provide complete Technical Service Plans designed to extend the life of your conveyor belts.
We provide specialized splicing kits that include uncured tie gum, cover stock, and high-purity rubber solutions. Our field technicians assist customers in designing splice layout patterns, calculating step lengths, and applying the exact vulcanization pressures and temperatures required. This process ensures the splice joint retains up to 90% of the belt's original rating.
Modern bulk material handling systems are moving toward automated monitoring and energy-efficient designs. As a leading manufacturer, Hebei Boao Rubber Technology is actively developing and integrating new technologies into our product line. This research focuses on two main areas: structural diagnostics and energy efficiency.
We integrate high-frequency RFID transponders and magnetic inductive loops directly into the rubber cover. When connected to real-time sensor loops, the system automatically detects tears or foreign object punctures. It triggers an automatic shut-off before longitudinal ripping can spread down the entire belt. Additionally, our steel cords are compatible with continuous X-ray diagnostic tools, allowing for non-destructive testing of internal cord alignment and corrosion.
Over long-distance conveyors, the energy required to overcome the indentation of the belt cover over the idlers accounts for up to 60% of the system's power consumption. Our specialized LRR rubber compounds minimize viscoelastic energy loss as the belt passes over idlers. This technology reduces system power requirements by up to 15%, lowering operating costs and CO2 emissions.
Our products undergo rigorous testing and are regularly specified for major industrial projects. We maintain supply partnerships with key corporate groups operating in high-demand bulk handling sectors.
Through these projects, we have refined our manufacturing process to ensure our products handle high-impact loads, survive freezing environments, and resist corrosive chemicals. Below are some of the key corporate groups that use Jinao brand conveyor belts:
China Railway Group
Conch Cement
Datong Coal Group
Tsingshan Group
Taihang Steel
Jidong Cement Group
We operate under a strict policy: unqualified raw materials do not enter the production line, and finished products that do not meet specification standards never leave our facility. Our internal QC department tests every batch of compounding rubber and steel wire reels. Our factory complies with a comprehensive range of quality certifications, including API 6D, API 607, CE, ISO9001, ISO14001, ISO18001, and TS.
Simulates long-term operational stress on steel cords and splice joints under alternating tension. This testing ensures the rubber-to-steel bond resists fatigue over millions of load cycles.
Measures the physical adhesion force between vulcanized rubber and brass-coated steel wires. This ensures the steel cords remain securely bonded during sudden start-up spikes.
Evaluates the volumetric rubber loss of cover materials under constant friction load. This allows us to guarantee cover durability when handling highly abrasive materials like quartz and slag.
Peeling Adhesion Test
Steel Cord Pull-out Machine
Dynamic Fatigue Tester
German-standard Abrasion Test
Find answers to common engineering questions regarding the selection, application, design, and maintenance of high-tension industrial conveyor belts.
Partner with a manufacturer that has 22 years of experience. Contact our technical team today to discuss your project requirements, specify cover compound grades, or request a quote.
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Boao Rubber