Explore our foundational range of conveyor belts and suspended roller components designed to optimize heavy industrial conveying systems.
Years of Engineering Excellence
Acres of Advanced Manufacturing Area
International Quality System Certified
Renowned Industrial Product Brand
Hebei Boao Rubber Technology Co., Ltd. is strategically located in the prestigious 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 modern enterprise that seamlessly integrates product development, scientific research, structure design, custom manufacturing, and global business services for bulk material handling machinery and accessories.
Our premier brand, "Jinao", is synonymous with structural integrity and operational efficiency. Over the past 22 years, we have achieved deep vertical integration by operating advanced production lines for rolling, forming, vulcanization, and material testing. Our physical and chemical laboratories operate continuously to certify that every component—from raw structural steel channels to the final carrying idler frames—meets strict global design codes.
Understanding the physics of bulk handling: standard compliance, structural alignment, and localized deployment of high-efficiency idler supports.
In high-capacity conveyor belt networks, the carrying idler frame is the mechanical structural base that supports the weight of both the conveyor belt and the conveyed bulk materials. Operating primarily on the carrying side of the belt conveyor circuit, these frames are designed to hold three or more idler rollers in a predefined shape (typically a trough configuration ranging from 20° to 45°) to prevent spillage and stabilize the material profile.
A properly engineered carrying idler frame prevents belt misalignment, reduces structural deflection under heavy load cycles, and mitigates localized cover wear on expensive rubber belts. In modern applications across mining, steel metallurgy, and cement manufacturing, these structures must withstand severe dynamics: continuous vibrational excitation, corrosive atmospheric exposures (C3 to C5 ratings), and substantial mechanical shock at loading zones.
At Hebei Boao Rubber Technology Co., Ltd., our engineering roadmap focuses on optimizing the weight-to-load ratio of steel components. Using advanced Finite Element Analysis (FEA), we design idler brackets and frames that minimize stress concentrations at weld seams.
| Technical Parameter | Standard Specification | Hebei Boao Premium Config |
|---|---|---|
| Structural Steel Grade | Q235B / ASTM A36 | Q355B High-Yield Structural Steel |
| Surface Treatment | Standard Primer Paint | Hot-Dip Galvanizing (ISO 1461) / Electrostatic Powder Coating |
| Trough Angles Available | 20°, 30°, 35° | Custom ranges up to 45° & adjustable transition angles |
| Conveyor Belt Width Range | 500mm – 1400mm | Heavy Duty widths from 1500mm to 2200mm |
| Welding Standards | GB/T 985.1 | Robotic GMAW / AWS D1.1 Structural Welding Certification |
Different operating environments require specialized structural features for carrying idler frames:
All load-bearing brackets undergo automated robotic gas metal arc welding (GMAW) to guarantee deep weld penetration, high fatigue resistance, and zero structural anomalies under extreme tension.
Every frame can be hot-dip galvanized or treated with thermosetting polyester powder coatings, providing excellent resistance against acid, alkali, and marine atmospheres.
In-house chemical and physical analysis labs verify raw steel properties, coating thickness, weld integrity, and load-bearing performance before any batch is cleared for shipment.
Leveraging industrial clustering, raw material accessibility, and advanced production technology to provide global buyers with competitive lead times and high reliability.
Our factory in Boye County, Baoding, benefits from being part of one of China's most mature industrial rubber and mechanical manufacturing clusters. This proximity streamlines our supply chain, ensuring direct access to premium-grade structural steel and raw rubber compounds.
Quality Control & Assurance Protocols: Our Quality Assurance (QA) team monitors every step of production. We source structural steel certified by major domestic mills and conduct ultrasonic testing on crucial welds. In addition, our physical testing facilities verify roller alignment, rotational resistance, and load capacities. This rigorous testing prevents substandard components from leaving our facility, ensuring reliable operation on site.
Global Reach & Logistical Logistics: With over two decades of export experience, our products are built to meet international standards (including CEMA, ISO, DIN, and AS). We work with global logistics networks to deliver bulk orders efficiently to ports, mining sites, and industrial hubs worldwide.
Comprehensive service plans to help extend equipment life cycles, minimize operational downtime, and ensure stable conveyor performance.
We provide planned replacement, structural inspection, preventative maintenance, and emergency repairs for conveyor systems and carrying idler frames to keep operations running smoothly.
Our services include supplying conveyor belts and structural components, maintaining safety stock, and assisting with installation alignment, vulcanization bonding, and routine wear inspections.
We aim to help clients improve operational efficiency, reduce belt wear, and lower overall maintenance costs through consistent technical support.
We are continually updating our manufacturing processes to support heavier industrial loads and integrate smart monitoring capabilities for modern material handling systems.
Our products are trusted by leading mining, steel, and power generation enterprises to handle demanding material transport requirements.
China Railway Group Mixing Plant
Conch Cement
Datong Coal Group
Tsingshan Group
Expert answers to common engineering questions regarding the selection, installation, and maintenance of idler frames.
A: Selection depends on material size, density, and the belt's flexibility. A 20° troughing angle is typically used for heavy, large lump materials to reduce cover stress. 35° and 45° angles increase cross-sectional capacity for lighter bulk materials, though they require a belt with sufficient lateral flexibility to trough correctly when empty.
A: Early failure is often caused by structural deflection under overload, poor alignment during installation, or severe corrosion. Selecting frames made from high-strength structural steel (like Q355B) and using hot-dip galvanizing helps protect the assembly, while precise alignment during installation reduces uneven belt wear.
A: Rubber buffer idlers are installed at loading and transfer points to absorb impact forces from falling materials. This cushioning helps protect the conveyor belt and the structural frame from deformation and localized impact damage.
A: Yes. Our factory can design and manufacture custom idler roller brackets and frames for belt widths ranging from 1500mm to 2200mm, complying with CEMA, DIN, ISO, and other international standards.
Explore our high-performance components engineered to maintain alignment, resist wear, and support heavy loads across demanding industrial operations.
Boao Rubber