Precision Metal Casting Services Since 2000 | Three Specialized Foundries in China
Welcome to JOC Machinery's metal casting division. We are a leading enterprise dedicated to providing precision metal casting solutions for industrial applications worldwide. With three specialized foundries and over 20 years of expertise, we deliver high-quality cast components to more than 40 countries.
In industrial manufacturing, metal casting is a fundamental process for creating complex metal parts. We understand that the quality and precision of cast components are essential for ensuring performance and reliability in demanding applications. Therefore, we are committed to providing superior casting services using advanced technologies and strict quality control procedures.
Understanding Metal Casting Processes
Investment Casting (Lost Wax Casting)
Investment casting, also known as lost wax casting, produces highly accurate metal parts with excellent surface finishes. This process begins with creating wax patterns, assembling them into a tree structure, coating with ceramic slurry, and melting out the wax to form a hollow mold. Molten metal is then poured into the mold, and after cooling, the ceramic shell is broken to reveal the cast parts.
Ideal for: Complex geometries, thin walls, and parts requiring minimal machining
Materials: Stainless steel, carbon steel, aluminum alloys, brass, bronze
Tolerance capabilities: ±0.05mm for small parts
Weight range: 0.01kg to 50kg
Die Casting
Die casting involves forcing molten metal under high pressure into reusable metal molds (dies). This process produces dimensionally accurate parts with smooth surfaces and excellent mechanical properties. Our die casting capabilities include both hot chamber and cold chamber processes.
Ideal for: High-volume production, thin-walled parts, complex shapes
Materials: Aluminum, zinc, magnesium, copper alloys
Tolerance capabilities: ±0.1mm
Weight range: 0.05kg to 10kg
Sand Casting
Sand casting uses sand molds to form metal parts. The process involves creating a pattern, forming a mold using sand, removing the pattern, pouring molten metal, and breaking the sand mold after solidification. Our advanced sand casting techniques allow for producing large, complex components with good dimensional accuracy.
Ideal for: Large components, low to medium production volumes
Materials: Cast iron, carbon steel, alloy steel, aluminum, bronze
Tolerance capabilities: ±0.5mm
Weight range: 1kg to 500kg
Lost Foam Casting
Lost foam casting is our specialty at our Nanjing facility. This process uses foam patterns that are coated with refractory material, embedded in sand, and replaced by molten metal during pouring. The foam vaporizes as the metal enters the mold, creating complex castings with minimal parting lines.
Ideal for: Complex internal passages, reduced assembly requirements
Materials: Gray iron, ductile iron, aluminum alloys
Tolerance capabilities: ±0.3mm
Weight range: 0.5kg to 100kg
Metal Casting Application Cases
Precision Valve Components for Petroleum Industry
Our investment casting process delivered complex valve bodies with precise internal channels that maintained integrity under high-pressure conditions. Using heat-resistant steel alloys, we achieved components with 99.8% consistency and zero porosity, reducing field failures by 78%.
• Industry: Petroleum Machinery
• Process: Investment Casting
• Material: Heat-resistant Steel Alloy
• Annual Volume: 10,000 units
• Key Challenge: Complex internal geometry with high-pressure requirements
High-Volume Aluminum Housing for Construction Machinery
Through our die casting expertise, we manufactured lightweight yet durable aluminum housings for construction equipment hydraulic systems. The optimized design reduced weight by 23% while maintaining structural integrity under extreme conditions.
• Industry: Construction Machinery
• Process: Die Casting
• Material: Aluminum Alloy A380
• Annual Volume: 50,000 units
• Key Challenge: Weight reduction while maintaining strength
Large-Scale Mining Equipment Components
Using our advanced sand casting capabilities, we produced massive crusher components for the mining industry. These wear-resistant parts demonstrated 40% longer service life compared to previous suppliers' components.
• Industry: Mining Equipment
• Process: Sand Casting
• Material: High Manganese Steel
• Annual Volume: 500 units
• Key Challenge: Extreme wear resistance requirements
Complex Agricultural Machinery Parts
Our lost foam casting process enabled the production of complex gear housings with integrated oil channels for agricultural equipment. This single-piece casting eliminated assembly requirements and reduced production costs by 35%.
• Industry: Agricultural Machinery
• Process: Lost Foam Casting
• Material: Ductile Iron
• Annual Volume: 5,000 units
• Key Challenge: Integration of multiple components into single part
Metal Casting Process Videos
Investment Casting Precision
Our carbon steel investment casting process delivers exceptional dimensional accuracy (±0.05mm) and superior surface finishes for critical machinery components. This lost-wax method creates complex geometries with minimal post-processing requirements.
Cast Iron Durability
Our gray cast iron grill bars showcase exceptional heat distribution and thermal stability. These sand-cast components withstand extreme temperatures while maintaining structural integrity for long-term outdoor performance.
Architectural Casting Solutions
Our 4-way spider clamps combine precision casting with meticulous machining to create reliable curtain wall fittings that seamlessly integrate glass panels while ensuring structural integrity.
Premium Metal Castings
Discover our comprehensive range of metal casting solutions including precision investment castings, durable sand castings, and high-strength die castings. We specialize in custom metal casting services for various industries, delivering quality cast metal parts with superior surface finish and dimensional accuracy. From aluminum die casting to stainless steel investment casting, our foundry capabilities meet your most demanding specifications.
Ready to Start Your Metal Casting Project?
E-mail: peter@jocmachinery.com
PC: 210008
Tel: 0086-25-83317070
Fax: 0086-25-83303377
Add: 20/FL., 26 North Zhongshan Road, Nanjing, Jiangsu, China
JOC Machinery - Your Trusted Supplier for Premium Metal Casting Solutions
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