Large-scale base-use mechanical equipment components
This product series focuses on basic mechanical components that are used continuously and in high volumes across many industries, mainly including grey iron and ductile iron general castings, negative-pressure cast aluminum components and stainless steel investment castings. These parts are widely applied in pump and valve systems, general machinery, automotive and commercial vehicles, construction machinery, industrial fluid control, and equipment for food and chemical processing, acting as indispensable structural bases and functional housings in all kinds of equipment manufacturing.
By selecting casting materials and processes appropriately, we balance cost, strength, weight, corrosion resistance and complex geometry formability to provide casting solutions that are suitable for mass production, dimensionally stable and easy for subsequent machining and assembly.
Send STEP / STP / IGES / IGS / XT / DWG / DXF / PDF / JPG / PNG together with your target batch size and application. We will recommend suitable casting materials and processes before confirming machining, price and lead time.
Grey and ductile iron general castings
Grey iron and ductile iron are among the most widely used casting materials in industry, suitable for high-volume parts with relatively simple geometry that require rigidity and vibration damping. Typical products include pump bodies, valve bodies and covers, flanges, bearing housings, machine tool beds, bases, compressor housings, gearbox housings, brackets and a wide range of general mechanical structural components.
These castings are commonly used in:
- Pump and valve industry: all kinds of pump housings, valve bodies, valve covers and end covers that serve as pressure-bearing or flow-guiding structures.
- General machinery and machine tools: bases, beds, support pedestals and slideway seats as fundamental structural members.
- Construction machinery and agricultural machinery: hubs, housings, brackets and connecting parts that bear loads or provide mounting interfaces.
- Hydraulic and compressor equipment: compressor housings, pipe connectors, flanges and connection blocks.
The advantages of grey and ductile iron general castings lie in controllable material cost, good castability and suitability for mass production. Ductile iron offers higher strength and toughness and can partly replace malleable iron or ordinary carbon steel structural parts in many applications.
Supporting long-term, high-volume base components
For long-running equipment and high-volume applications, we combine grey iron and ductile iron grades with suitable casting processes to achieve a balance between rigidity, vibration damping and cost. This helps ensure stable performance over the service life while keeping the total cost of ownership under control.
Castings are designed with subsequent machining and assembly in mind, so that datum surfaces, mounting points and sealing areas can be accessed and finished efficiently, supporting serial production for OEM customers in pumps, valves, general machinery and power transmission.
Hydraulic pump and valve bodies in ductile iron
Ductile iron hydraulic pump and valve bodies combine high strength with good toughness, making them suitable for pressure-bearing and cyclic load conditions in hydraulic and fluid control systems. The material can withstand pressure shocks and long-term service while providing stable sealing surfaces and connection interfaces.
With proper process control and machining allowances, we deliver pump and valve bodies that integrate easily into your existing hydraulic manifolds and system layouts, helping reduce leakage risk and maintenance time.
Flange and valve body castings for piping and flow control
Ductile iron flange castings and valve bodies are widely used in pipeline and flow control systems, where dimensional stability, sealing performance and mechanical strength must be maintained over long service intervals. By controlling casting quality and machining references, we help ensure consistent bolt-hole alignment and gasket compression.
Combined with appropriate surface treatments and coatings, these castings can be tailored for water, oil, gas and chemical media, enabling unified designs across multiple system variants.
Single ductile iron pump housings for general industry
Single ductile iron pump housings illustrate how we control wall thickness, fillet radii and machining allowances to support both casting soundness and efficient downstream machining. These parts are representative of the high-volume, long-lifecycle components found in water treatment, HVAC and general industrial pumping systems.
By maintaining stable casting process windows and consistent tooling, we support repeatable dimensional accuracy across batches, reducing the burden on your in-house machining and quality teams.
Ductile iron structural castings for machinery frames
In agricultural and construction machinery, ductile iron structural castings are used for hubs, brackets, housings and connection points that must carry loads and resist impact. By integrating mounting features and structural ribs into the casting, we help simplify welding and assembly steps at the OEM assembly line.
These castings are designed to endure harsh working environments and repeated load cycles, supporting the long-term reliability requirements of off-road and field equipment.
Negative-pressure cast aluminum / aluminum alloy cast components
Aluminum alloy castings are suitable for weight-sensitive, more complex parts that require good appearance and dimensional accuracy. Negative-pressure aluminum casting processes (including low-pressure casting and die casting) are commonly used for mounting brackets, housings, heat-dissipating structures and functional shells.
Typical products include:
- Aluminum alloy mounting brackets, connection brackets and structural support parts.
- Motor housings, motor end covers, electronic equipment enclosures and control box housings.
- Gearbox housings, small gearbox bodies and lightweight housing structures.
- Heat-sink housings with fins and enclosures for electronic and electrical modules.
Main application industries:
- Automotive and commercial vehicles: various brackets, gearbox housings and lightweight structural parts.
- Motors and transmission equipment: motor housings, flanges and end covers.
- Electrical and electronic equipment: control boxes, drive enclosures and thermal management structures.
- General industrial equipment: mounting parts that require weight reduction, integrated structures and good appearance.
Aluminum alloy castings offer advantages in lightweight design, thermal and electrical conductivity and complex one-piece structures, helping reduce part count and assembly steps in your final assemblies.
Precision stainless steel impellers and pump components
Stainless steel investment casting is suitable for complex shapes with higher appearance requirements that must resist corrosion or elevated temperatures. Near-net shape impellers and pump components can be produced with good dimensional accuracy and surface quality, reducing subsequent machining work.
Typical products include stainless steel pump bodies, covers, chambers and impellers used in fluid equipment where both hydraulic performance and corrosion resistance are critical.
Pump and valve connectors in stainless steel investment casting
Stainless steel precision cast connectors are widely used in pump and valve assemblies where corrosion resistance, cleanability and mechanical strength must be maintained. Investment casting allows complex connector shapes and internal flow paths to be formed in one step.
These components are well suited to hygienic equipment, chemical processing and outdoor or marine environments where standard carbon steel parts are prone to corrosion.
Corrosion-resistant precision castings for demanding applications
Stainless steel investment castings are ideal for parts with complex geometry and high appearance requirements that must work in corrosive or high-temperature environments. Near-net-shape castings help reduce machining time while achieving the required surface quality.
Main application industries include:
- Pumps, valves and fluid control systems.
- Food, pharmaceutical and sanitary equipment.
- Chemical and fine chemical process equipment and piping systems.
- Marine, shipbuilding and outdoor corrosion-prone environments.
- Critical connecting and structural parts in high-demand machinery and devices.
The advantages of stainless steel precision castings include corrosion resistance, high strength and one-piece formation of complex structures, making them suitable for medium-volume, high-value functional components.
