Explore our industrial-grade, certified conveyor belts and accessories designed for seamless materials handling.
Understanding the critical role of NBR elastomeric systems in modern materials transport.
Nitrile Butadiene Rubber (NBR) conveyor belts represent the pinnacle of oil-resistant conveying technology globally. Synthesized from acrylonitrile (ACN) and butadiene monomers, NBR compounds are uniquely engineered to withstand the destructive swelling, degradation, and softening caused by mineral oils, vegetable fats, animal lipids, chemical solvents, and petroleum derivatives. In heavy-duty industries, using standard SBR (Styrene Butadiene Rubber) or natural rubber belts in contact with hydrocarbons triggers rapid structural failure, resulting in catastrophic downtime and heavy financial losses.
The global commercial landscape for Nitrile Conveyor Belts has seen significant demand shifts driven by automation in recycling plants, growth in metal casting, grain processing terminals, and mining operations. System designers now focus heavily on minimizing lifecycle costs (TCO) while maximizing runtime safety. Today's manufacturing centers are heavily centered in advanced industrial parks in China, particularly boye county, Baoding, Hebei, where manufacturing clusters provide unparalleled cost efficiencies and raw material integration.
Key commercial requirements for global buyers include compliance with international standards such as ISO 340 (flame retardancy), DIN 22102 (rubber conveyor belt standards), and ASTM D471 (oil swelling testing). When choosing a Nitrile Conveyor Belt manufacturer, technical purchasing managers demand stringent testing transparency and traceable batch manufacturing histories.
Leading the field in elastomeric engineering since 2004 under the "Jinao" brand.
Located in the heart of the Boye County Rubber Industrial Park, Baoding, Hebei Province, Hebei Boao Rubber Technology Co., Ltd. has established itself as an industry leader. Founded in 2004, the facility covers an area of over 30 acres. Our registered trademark, "Jinao", represents our commitment to durability, scientific precision, and industrial longevity.
We are a professional manufacturer in China that integrates product development, research, design, manufacturing, and comprehensive business services for conveyor belts and conveyor machinery accessories. We have passed the international quality management system certification, cementing our position as a trustworthy supplier for national and global clients.
The company houses an independent chemical analysis room and physics laboratory. This allows us to ensure continuous monitoring at every stage from raw material procurement to product delivery, adhering strictly to a zero-defect standard.
Professional quality inspectors, sophisticated testing equipment, and advanced destructive testing methods guarantee structural and material integrity across all production batches.
With strong technical support and a comprehensive after-sales system, our products are exported globally. We serve heavy industries such as steel, metallurgy, coal, cement, power generation, fertilizers, ports, and logistics hubs.
Discover our complete line of conveyor belts and supporting accessories manufactured to global industrial standards.
We produce a wide variety of high-performance belts tailored for different conditions, including:
To maximize system operational lifetime, we produce essential components matching our belts:
Compare standard oil-resistant chemical specs to select the appropriate grade for your environment.
Nitrile conveyor belts are formulated in various grades depending on the exposure level to oils and aggressive hydrocarbons. In standard applications (such as woodchips or soybeans), a Medium Oil Resistant (MOR) belt is sufficient. However, for petroleum-heavy environments, metal scrap processing, or highly concentrated chemical fertilizers, Super Oil Resistant (SOR) belts containing high ACN content are mandatory. The table below outlines typical mechanical and chemical metrics of Jinao's specialized formulations:
| Parameter | Medium Oil Resistant (MOR) | Super Oil Resistant (SOR) | Test Standard Reference |
|---|---|---|---|
| NBR Compound Base | NBR / SBR Blend | High ACN Pure NBR | ASTM D1418 |
| Volume Change in IRM 903 Oil (70h @ 100°C) | < +25% | < +5% | ASTM D471 / ISO 1817 |
| Tensile Strength (MPa) | ≥ 15 MPa | ≥ 18 MPa | DIN 53504 / ISO 37 |
| Elongation at Break (%) | ≥ 350% | ≥ 400% | DIN 53504 / ISO 37 |
| Abrasion Loss (mm³) | < 150 mm³ | < 120 mm³ | DIN 53516 / ISO 4649 |
| Working Temperature Range (°C) | -20°C to +90°C | -25°C to +120°C | Continuous Operation |
A look inside Hebei Boao's advanced production lines and physical testing laboratories.
Where high-performance elastomer conveyor design is heading over the next decade.
The manufacturing process for nitrile conveyor belts is undergoing a technological transition driven by industrial automation and sustainability targets. We are focusing on three primary innovation pillars:
Helping you choose the right materials handling system for optimal plant performance.
We provide full-service technical support, helping design-engineering agencies and materials managers select, install, and maintain their conveyor networks. Our service programs include:
Planned replacement, hot vulcanization splicing, physical inspection, dynamic tension tuning, and emergency repair of high-stress belts.
Providing custom NBR/EP/NN belts, maintaining safety stocks for high-priority accounts, on-site splice vulcanization, and regular structural integrity monitoring.
Improving overall belt conveyor system efficiency, reducing wear, minimizing power draw, and helping clients lower their operational costs.
Jinao brand products are trusted by some of the world's most demanding heavy industries.
Our belts are engineered to comply with rigorous quality standards: API 6D, API 607, CE, ISO9001, ISO14001, ISO18001, and TS certifications.
Answers to common technical questions to help you choose the right conveyor belt.
Standard rubber belts (SBR, natural rubber) swell, soften, and lose tensile strength when exposed to oils, fats, and solvents. This leads to premature belt failure, stretching, and structural damage. Nitrile (NBR) conveyor belts are chemically formulated with Acrylonitrile (ACN), which resists hydrocarbon molecules, maintaining belt tension and structural integrity in greasy environments.
The ACN content in NBR rubber typically ranges from 18% to 50%. A higher ACN level provides better resistance to oils, greases, and chemicals, but reduces cold temperature flexibility. We adjust this ratio depending on whether the belt needs to operate in freezing environments (cold-resistant oil belts) or in high-heat industrial processes.
Key industries include metal recycling and scrap yards (residual machine oils), food processing plants (vegetable oils and animal fats), grain storage and milling (oilseeds like soy and rapeseed), chemical fertilizer plants, and waste management centers handling organic matter.
We strictly follow international testing protocols, including ASTM D471/ISO 1817 for oil swelling behavior, DIN 53516/ISO 4649 for abrasion resistance, and ISO 37 for tensile strength. All testing is conducted in our independent chemistry and physics laboratories before dispatch.
Yes, we can vulcanize various patterns—such as herringbone, magic carpet, and chevron designs—directly onto our nitrile compound bases. This allows for steep-incline transport of oil-coated materials without slipping.
Complete your layout with our specialized fabric-reinforced, steel-cord, and lightweight conveying options.
Boao Rubber