Custom Metal Casting Services In China
Die Casting | Sand Casting | Investment Casting | Full-Service Manufacturing
- 30+ Years Experience
- Multiple Casting Processes Available
- ISO Quality Control System
- CNC Machining Support
Our Casting Capabilities
At Sunzhou, we provide professional metal casting services for complex and high-volume parts. From prototype casting to mass production, we deliver cost-effective solutions with consistent quality. We offer a complete range of casting processes to meet different project requirements.
Tolerance
±0.1–0.5 mm (depending on process)
Lead Time
7–20 Day
Production
Prototype to Mass Production
Not sure which process is right? Our engineers can help
Casting Processes We Offer
Die Casting:
High precision and excellent surface finish, ideal for aluminum and zinc parts
Sand Casting:
Cost-effective for large parts and low-volume production
Investment Casting (Lost Wax):
High accuracy and complex geometry capability
Common Casting Challenges
Reliable casting solutions for demanding industries
ARE YOU FACING?
- Porosity defects
- Inconsistent dimensions
- High tooling cost
- Poor surface finish
HOW WE SOLVED THEM!
- Optimized mold design
- Strict process control
- Post-machining capability
- Full inspection process
Materials For Casting
Custom alloys available upon request
Aluminum
Lightweight and widely used in automotive and electronics
Zinc
High precision and excellent surface quality
Steel
High strength and durability for industrial applications
Iron
Cost-effective for heavy-duty components
Surface Finishing Options
We offer finishing services to enhance part quality—a one-stop solution from casting to finishing.
Anodizing
Sandblasting
Painted
Polishing
Brushing
Plating
Laser
Custom Surface Treatment Is Welcom
CNC Machining After Casting
To achieve tighter tolerances and better surface finish, we provide CNC machining services after casting.
Benefits:
- Improved precision
- Better surface finish
- Functional features machining
- Assembly-ready parts
Quality Control & Inspection
We ensure casting quality through strict processes. Consistent quality from prototype to production
1. Raw material inspection
2. Process monitoring
3. Dimensional inspection
4. Final inspection
Casting Parts Gallery
We produce a wide range of casting parts
Mechanical Parts
Stian Steel Parts
Agriculture Mechanical Parts
Drilling Bit Parts
Nail Gun Parts
Pliers Fitting
Start Your Casting Project Today
Looking for a reliable casting manufacturer?
Send us your drawings and get a fast quote.
✔ What You Get:
Process recommendation
Cost estimation
Engineering support