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.
Hanhai Casting integrates design, casting, and machining with an annual output of 80,000 tons. Certified with ISO9001 and CE, we deliver precision-engineered castings trusted by clients across Asia, the Middle East, Europe, and South America.
To empower industry with precision casting and sustainable manufacturing excellence.
To be a trusted global foundry brand delivering high-quality steel and iron castings.
Over 80,000 tons of high-grade cast steel and cast iron components.
In the ecosystem of heavy-duty rotating machinery, the block bearing housing acts as the central anchor of operational stability. From bulk material handling in iron mines to high-impact mineral crushing in aggregate quarries, these components sustain continuous operations while absorbing enormous radial and axial forces. As a premier block bearing housing manufacturer, Henan Hanhai Metallurgy Mining combines metallurgical mastery, computer-aided design (CAD/FEA), and heavy industrial casting capacity to engineer housings that minimize downtime, optimize load pathways, and enhance the service life of critical rolling element bearings.
Operating conditions determine the metallurgical demands of block bearing housings. Standard applications might utilize grey cast iron (such as GG20 or GG25), which offers excellent vibration damping and thermal conductivity. However, heavy-duty applications—such as mining jaw crushers, hammer mills, and kiln support rollers—demand materials with far superior tensile strength, ductility, and fracture toughness. As a specialized bearing housing factory, we offer tailored metallurgical options:
Through precise chemical composition adjustment during the induction melting process, we control the microstructural alignment. All castings undergo thermal processing—such as normalizing, stress-relieving, or quenching and tempering—to guarantee uniform mechanical properties throughout the entire housing body, mitigating sub-surface defects and internal residual stresses.
Our machining facilities achieve dimensional tolerances conforming to IT7 or IT8 classes, with geometric tolerances for bearing seat cylindricity held within micro-meters. This precision ensures a perfect interface with the outer ring of the bearing, preventing rotation, minimizing friction, and preventing premature bearing degradation. Non-Destructive Testing (NDT), including Ultrasonic Testing (UT), Magnetic Particle Testing (MT), and Dye Penetrant Inspections (PT), are performed systematically on every heavy block bearing housing batch.
The global mechanical landscape is highly segmented, with regional operations presenting distinct environmental and mechanical challenges. By mining search intent data and analyzing on-site failures from global clients, we have developed targeted bearing housing solutions:
In high-throughput crushing systems across Canada and the United States, block bearing housings are exposed to extreme abrasive dust and rapid temperature swings. Here, our housings incorporate specialized seal configurations, such as Taconite heavy-duty seals and labyrinth rings, keeping contaminants out while containing high-viscosity synthetic grease.
The Pilbara region demands extreme scale and thermal resilience. Conveyor pulleys and stacker-reclaimers require massive split plummer block housings (such as SD 3100 or SNL series equivalents) cast from high-impact ductile iron. These housings must withstand continuous sun exposure (up to 50°C ambient temperatures) while dissipating heat generated by bearings running under high speeds and high dynamic loads.
Processing acidic slurry and handling heavy loads in flotation and grinding circuits requires maximum chemical resilience. Our foundry designs and pours alloyed cast steel bearing housings with custom anti-corrosive coatings, ensuring long-term resistance to low pH process waters and abrasive rock debris.
European operators focus heavily on carbon footprints and energy efficiency. Our thin-wall, high-strength structural designs optimize weight without sacrificing load-bearing capacity. These housings are fully compatible with digital vibration and temperature monitoring sensors (smart bearing concepts), supporting modern predictive maintenance architectures.
Navigating the global supply chain requires partners who can mitigate delays and control input costs. Located in the metallurgical heartland of Henan, China, Henan Hanhai Metallurgy Mining leverages a unique regional ecosystem to provide distinct cost and supply security benefits:
As heavy machinery shifts toward higher speeds and autonomous operation, block bearing housing designs must evolve. Hanhai is actively pursuing three key engineering tracks:
For more than two decades, Hanhai Casting has been dedicated to the research, production, and export of high-quality steel and iron castings. With continuous innovation and strict quality control, we've become a trusted partner for global mining, metallurgy, and construction industries.
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.
We supply durable castings for mining, metallurgy, power generation, and construction industries worldwide. Explore our specialized divisions below:
Widely used in mining, metallurgy, construction, chemicals, infrastructure, and recycling for crushing ores, rocks, aggregates, slag, and industrial materials.
Applied in cement, mining, metallurgy, and heavy industry for crushers, mills, kilns, and other large-scale processing equipment.
Designed for forging, metallurgy, and heavy manufacturing, supporting hydraulic presses and high-load, large-tonnage forming equipment.
Used in hydraulic systems, construction machinery, and energy equipment for valves, valve bodies, and fluid control components.
Applied in metallurgy and steelmaking for slag handling, ingot casting, smelting, and other high-temperature industrial processes.
Heavy-duty cast frames, main frames, and support assemblies that withstand cyclic shock loads.
Structural machine components engineered up to 120-ton single casting weights.
Durable components designed for high-stress mills, classifiers, and flotation units.
Mining and crushing equipment projects are highly customized and technically driven. Our service process is designed to ensure clear communication, precise solution matching, stable manufacturing, and long-term operational reliability, from initial inquiry to after-sales support.
Project Requirement Collection & Design Specifications Gathering.
Customized Crushing and Casting Solution Proposal drafting.
Strict Engineering Verification, Materials Alignment & Commercial Agreements.
In-House Melting, Casting, Machining & In-Line Quality Control.
Pre-Shipment Dimensional Inspection, NDT, and Metallurgical Testing.
Safe Export Packing and Global Shipping management.
Online or On-site Engineering Support and Alignment training.
Operational Training, Preventive Maintenance Guidelines Handover.
Long-Term Spare Parts Supply, Metallurgical analysis, and service support.
Hanhai