Custom Small Castings Manufacturer
With investment casting & die casting capabilities, we custom-cast small parts per your design with precision and consistent quality.
- Multiple materials selection
- Custom design support
- Quick prototype before production
Precision Small Casting Solutions for OEM Applications
Small castings are widely used in industries requiring lightweight, high-precision, and geometrically complex metal components. At HDC, we manufacture custom small castings using investment casting and die casting processes, supporting a wide range of materials, tolerances, and finishing requirements.
From miniature mechanical parts and pump components to hardware fittings and electronic housings, we help OEM customers produce reliable small metal components with consistent quality and scalable production.
Our engineering team supports projects from prototyping to mass production, including tooling development, CNC machining, surface finishing, heat treatment, inspection, and assembly.
Our Casting Process
Investment Casting
When it comes to complex geometries and material flexibility, investment casting is our recommended choice for small castings.
- ±0.1 mm as cast tolerance
- 1.5 mm min wall thickness
- Multiple materials compatible
Die Casting
Die casting is valued for its high efficiency in producing components with rich details, especially for small parts that are hard to CNC.
- Over 10, 000 pieces daily production
- 1 mm min wall thickness
- High consistency across batches
Materials Available for Small Castings
| Stainless Steel | CF8, CF8M, 304, 316, 304L, 316L |
| Carbon Steel | WCB, WCC |
| Alloy Steel | WC6, WC9 |
| Aluminum Alloys | A356, ADC12, A380 |
| Zinc Alloys | Zamak 3, Zamak 5 |
| Super Alloys | IN625, In718, K18 |
* Custom material options are available according to mechanical property, corrosion resistance, temperature, and industry requirements.
Process Selection Guide
Choosing the right casting process depends on part geometry, material requirements, production volume, surface finish expectations, and cost targets.
At HDC, we help OEM customers select the most suitable manufacturing method for small metal components based on their application and production goals.
Choose Investment Casting When:
- Your part has complex geometries
- Multiple alloy options are required
- Mechanical strength is important
- You need stainless steel or steel components
- Production volume is relatively low or medium
- Fine details and smooth surfaces are needed
Choose Die Casting When:
- High-volume production is required
- Lightweight aluminum or zinc parts are preferred
- Thin walls and tight repeatability are important
- Unit cost optimization is critical
- Fast production cycles are needed
Contact us for technical support.
Applications We Support
Our custom small castings are used across a wide range of industries requiring compact metal components with precision dimensions, reliable mechanical performance, and scalable production capability.
By combining investment casting, die casting, CNC machining, and finishing services, we help OEM customers manufacture small metal parts for demanding industrial and commercial applications.
Automotive Industry
- Sensor housings
- Mounting brackets
- Engine fittings
- Transmission components
- Motor covers
- Heat dissipation parts
- Structural connectors
Industrial Equipment
- Valve bodies
- Pump impellers
- Couplings
- Mechanical connectors
- Equipment brackets
- Fluid handling components
Electronics & Electrical
- Electronic housings
- Heat sinks
- LED lighting parts
- Control box enclosures
- Connector shells
- Cable hardware
Marine Industry
- Instrument housings
- Structural support parts
- Precision brackets
- Stainless steel fittings
- Device connectors
Agriculture Equipment
- Equipment brackets
- Mechanical joints
- Housing components
- Pump fittings
- Connector parts
Lighting Industry
- LED lamp housings
- Heat sinks
- Mounting bases
- Structural frames
- Decorative metal parts
Construction & Hardware
- Hinges
- Clamps
- Locks
- Mounting brackets
- Decorative fittings
- Structural hardware
Consumer Products
- Appliance components
- Tool accessories
- Decorative parts
- Structural connectors
- Small enclosures
FAQs
What is considered a small casting?
Small castings typically refer to compact metal components with relatively low weight and dimensions, often requiring high precision and fine details.
Which process is better for small castings, investment casting or die casting?
Investment casting is better for complex geometries and multiple alloy options, while die casting is more suitable for high-volume aluminum or zinc parts.
What tolerances can you achieve?
Tolerance capability depends on material, geometry, and process. CNC machining can be added for tighter tolerances.
Can you manufacture custom OEM small castings?
Yes. We manufacture fully custom small castings according to drawings, samples, or specifications.
Do you provide machining and finishing?
Yes. We offer complete secondary operations including CNC machining, polishing, coating, plating, and assembly.
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