Die Casting & CNC Car Truck Water Pump

What is Post-Die-Casting Machining?

Post-die-casting machining involves precision CNC processing of as-cast die-cast parts to achieve final dimensional accuracy, improve surface finish, add threads, holes, slots, or other functional features that cannot be achieved directly in the die‑casting process. Die casting provides high-volume, near-net-shape parts with good strength-to-weight ratio; CNC machining then ensures tight tolerances, smooth critical surfaces, and assembly‑ready geometries. This hybrid approach is widely used in automotive, electronics, consumer goods, and industrial equipment.

Our Capabilities in Machining Die-Cast Components

We specialize in CNC machining of various die‑cast alloys, equipped with high‑speed milling centers, rigid fixtures, and experienced programming to handle the sometimes‑uneven material density and skin‑hardness typical of die‑cast parts. Our process ensures burr‑free edges, precise features, and consistent quality from prototype to production volumes.

From Investment Casting to Finished Part

Submit your die‑cast part design or sample for a manufacturability review. We provide DFM feedback focused on optimizing both the casting and machining stages to reduce cost and lead time.

Common Die‑Cast Materials We Machine

▪ Aluminum Die Castings: ADC12, A380, A383, A360, etc.

▪ Zinc Die Castings: Zamak 3, Zamak 5, ZA‑8

We can source die‑cast blanks or machine your supplied castings.

Finishing & Surface Treatment Options

▪ Deburring & Tumbling

▪ Shot/Sand Blasting

▪ Polishing & Brushing

▪ Plating (Nickel, Chrome, Zinc, Tin)

▪ Painting & Powder Coating

▪ Anodizing (for Aluminum Castings)

▪ Sealing/Impregnation (for porosity sealing)

CNC Machining Service

At Xinchenda Metal, we use advanced equipment to offer you a variety of CNC machining services including CNC Machining,CNC Milling,CNC Turning,5-Axis CNC Machining Service,Swiss-type CNC Machining Services,Surface Finishing,Parts Assembly Service and much more. Using our imported 3, 4 and 5-axis CNC machining centers, our skilled machinists can make turned and milled parts using a wide range of plastic and metal materials.

From Concept to Production

We support your project from initial design to final part delivery. Upload your drawings to start a free project review and receive expert DFM feedback.

Available Materials

▪ Metals: Steel, aluminum, stainless steel, brass, copper, and more

▪ Plastics: Acrylic, PC, PEEK, PEI, Nylon, PP, PVC, and other engineering grades
Contact us for full material specifications

Advantages of CNC Machining

▪ High accuracy and repeatability

▪ Low tooling investment

▪ Broad material compatibility

▪ Efficient material removal

▪ Cost-effective for prototypes to mid-volume runs

▪ Fast turnaround and scalable production

Surface Finishing Options

We provide a range of finishes to meet aesthetic and functional requirements, including anodizing, painting, bead blasting, polishing, pad printing, and custom color matching.