Explore our flagship heavy-duty castings and system assemblies engineered for high-stress processing plants worldwide.
About Hanhai Casting
Henan Hanhai Metallurgy Mining International Trade Co., LTD is a leading foundry manufacturer in China, specializing in cast steel and cast iron parts. With advanced production lines and strict quality control, we supply durable castings for mining, metallurgy, power generation, and construction industries worldwide.
Our state-of-the-art facility integrates design, molding, melting, precision machining, and non-destructive testing (NDT), ensuring that every component meets rigorous international standards like ISO9001 and CE certification. By leveraging high-grade alloys and optimized cooling processes, our round bearing housings are built to withstand high mechanical and thermal stresses.
A comprehensive study on compliance, material integrity, and localized engineering in rotating equipment environments.
For global heavy industries, especially within the European Economic Area (EEA), CE Certification is not merely a custom clearance mark. It represents verification that safety-critical structural elements, such as round bearing housings, comply with the EU Machinery Directive (2006/42/EC). Bearing housings act as the primary interface between rotating shafts and static machinery frames. If a housing suffers a structural failure under fatigue or impact loads, the results can be catastrophic.
CE marking ensures that the raw materials used (whether ductile cast iron EN-GJS-400-15 or cast carbon steel GS-20Mn5) undergo rigorous testing, including chemical analysis, Charpy impact tests, and tensile strength assessments. By partnering with certified factories like Henan Hanhai, procurement specialists guarantee that their mechanical assemblies satisfy the essential health and safety requirements (EHSR) outlined in European directives.
Full design optimization using Finite Element Analysis (FEA) to confirm safety factors conform to EN standards for maximum machinery load limits.
Engineered casting profiles with optimal radiuses to eliminate localized stress concentration areas, extending bearing life cycle by up to 30%.
Every casting run is assigned a unique heat number trace. MTRs (Material Test Reports) are generated for physical properties and alloy chemistry.
China’s heavy industry ecosystem offers unparalleled advantages in supply chain consolidation. At Hanhai Casting, we integrate the complete workflow: from pattern-making, sand mold preparation, and refining, through to precision CNC machining and surface coating. By localizing raw materials sourcing and employing automatic casting lines, we maintain cost efficiency without compromising mechanical precision.
Our 80,000-ton annual output gives us the scale to meet high-volume orders for global machinery exporters. This ensures that large-scale infrastructure and mining operations receive high-consistency round bearing housings, reducing downtime and securing a steady line of replacement components.
To empower industry with precision casting and sustainable manufacturing excellence.
To be a trusted global foundry brand delivering high-quality steel and iron castings.
Hanhai Casting was established with a focus on heavy steel and iron castings, laying a solid technical and production foundation.
Introduced advanced melting and molding technology, expanded production capacity, and served key mining and metallurgy sectors.
Achieved ISO9001 certification, upgraded testing systems, and began exporting high-performance castings to Asia and the Middle East.
Integrated intelligent foundry systems and digital management, driving sustainable manufacturing and global customer partnerships.
Round bearing housings serve in diverse environments where misalignment and axial loads are common challenges. Standard applications include:
By supplying customized bearing housings with Integrated Lubrication Ports and labyrinth seal systems, Hanhai helps customers extend relubrication intervals and prevent abrasive dust contamination.
Procurement teams faces multiple challenges: logistical delays, dimensional non-conformity, and inconsistent materials. To mitigate these risks, Henan Hanhai implements a comprehensive quality assurance framework.
We provide full NDT (Non-Destructive Testing) reports, such as Ultrasonic Testing (UT), Magnetic Particle Testing (MT), and Radiographic Testing (RT) for cast interiors. By conducting pre-machining heat treatments (annealing or normalizing), we relieve internal stresses, preventing dimensional warping during post-delivery operations.
A visual showcase of our casting capabilities, factory output, and on-site applications across heavy industry sectors.
Customized Engineering Workflow: ensuring design synchronization, stable manufacturing, and long-term operating reliability.
Gathering detailed load requirements, shaft speeds, operating temperature ranges, and installation constraints.
Custom engineering of the housing layout using 3D modeling and structural validation simulations.
Molding alignment, dimension verification, tolerance definition, and commercial agreement sign-off.
Controlled electric arc furnace melting, sand mold preparation, alloy formulation, and casting under digital tracking.
NDT testing, hardness mapping, surface roughness checking, and verification against drawing specs.
Applying anti-rust oils, sealing components in reinforced crates, and arranging export shipping.
Hanhai Casting products are validated by leading heavy equipment manufacturers and certified for safety compliance.
Technical answers to common search intents regarding round bearing housings, material choice, and export procedures.
Heavy-duty housings are typically cast using grey iron (GG25/30), ductile iron (GGG40/50), or cast steel. Ductile iron offers superior tensile strength and ductility, making it ideal for moderate impacts. Cast steel is selected for extreme shock load situations (e.g., jaw crushers) due to its superior weldability and fatigue limit.
CE Certification ensures the housing complies with European Machinery Directives. It acts as third-party verification that the casting can withstand specified design pressure and load limits, preventing liability risks for European OEM machinery packagers.
We use simulated solidification software (MAGMA) to design high-efficiency riser and gating systems. Regular monitoring of the pouring speed, pouring temperature, and the addition of chill elements prevents contraction cavities and internal micro-porosity.
Yes. Our team can cast and machine custom housings according to customer blueprints. We configure specific seating tolerances, customized oil lubrication holes, and integrated vibration monitoring sensor mounts.
We offer Magnetic Particle Testing (MT) for surface cracks, Ultrasonic Testing (UT) for internal defect detection, and full dimensional inspection using Coordinate Measuring Machines (CMM) before delivery.
All finished mating surfaces are coated with a specialized peelable anti-rust polymer or industrial grease, wrapped in heavy VCI moisture-barrier plastic, and secured inside ocean-worthy timber crates.
Browse our verified high-durability products exported to European, Middle Eastern, and Asian mining complexes.
Hanhai
