Metal CNC Machining Service

Precision metal CNC machining in aluminum, steel, brass, and copper, with tight tolerances, in-house finishing, and CMM-verified quality.

Metal CNC Machining Service in China

Metal CNC machining uses computer-controlled cutting tools to remove material from solid metal and form the required parts in your drawing. It can produce complex geometries with the required dimensions and finishes.
At Erye, our CNC machining service for metal parts covers the whole process from the first drawing check through machining, finishing, and final inspection. Our DFM review identifies potential machining challenges early, while our multi-axis machining capabilities handle complex geometries, tight features, and demanding part designs. With 50+ machining centers, in-house finishing and assembly, and quality inspection, we keep your order moving from production to delivery while maintaining the requirements on your drawing.

Our Metal Machining Capabilities

We possess multiple processing techniques and are capable of handling parts of various shapes and purposes.

CNC Milling

Shapes parts by rotating cutting tools around the workpiece, making it well suited for flat surfaces, pockets, slots, and complex contours.

CNC Turning

Shapes rotationally symmetric parts by rotating the workpiece against a cutting tool, making it well suited for cylindrical features.

EDM

Uses electrical discharges to machine hard metals and intricate features that are difficult to produce with conventional cutting.

Metals We Work With

We machine a wide range of metals and we can provide special alloys on your request. If you are not sure which material fits, we can recommend suitable options based on your requirements of load, operating environment, weight, and budget. We work with the following materials:

Aluminum

Aluminum is a lightweight, corrosion-resistant metal known for its excellent strength-to-weight ratio and versatility. It is widely used across various industries, including automotive, aerospace, construction, and packaging, due to its ease of fabrication, high durability, and thermal and electrical conductivity.

Aluminum also has good resistance to oxidation, making it ideal for both indoor and outdoor applications.

Stainless Steel

Stainless steel is a highly durable and corrosion-resistant alloy composed primarily of iron, carbon, and chromium. Known for its strength, versatility, and resistance to staining, rust, and oxidation, stainless steel is widely used in industries such as automotive, aerospace, food processing, medical devices, and construction.

It maintains its appearance and integrity even in harsh environments. Available in various grades, stainless steel can be tailored for specific needs.

Carbon Steel

Carbon steel is a strong and durable material made primarily of iron and carbon, with varying carbon content that influences its hardness, strength, and flexibility. It is widely used in construction, manufacturing, automotive, and machinery due to its affordability and ability to withstand high stress and impact.

Carbon steel is available in several grades, ranging from low-carbon steel (soft and malleable) to high-carbon steel (hard and brittle), making it suitable for a broad range of applications.

Copper

Copper is a highly conductive metal known for its excellent electrical and thermal conductivity, making it essential in electrical wiring, electronics, and heat exchangers. It is also valued for its corrosion resistance, malleability, and ductility, which allow it to be easily shaped and formed into various products.

Copper is widely used in plumbing, roofing, and industrial applications due to its durability and natural antimicrobial properties. Its ability to develop a protective patina over time adds to its aesthetic appeal and longevity, especially in outdoor and architectural uses.

Brass

Brass is an alloy primarily composed of copper and zinc, known for its strength, durability, and attractive gold-like appearance. It is highly malleable and resistant to corrosion, making it ideal for applications in plumbing, electrical components, musical instruments, and decorative items.

Brass also offers excellent machinability, making it easy to work with in manufacturing processes. Brass is commonly used in both functional and ornamental applications, providing a combination of aesthetics and performance.

One-Stop Solution for Metal CNC Machining

Whether you are ordering one prototype or a recurring production run, we provide complete support from start to finish: design review, machining, finishing, assembly, and inspection.

DFM Review Before Machining

We will carefully review your drawings before any metal is cut, looking for thin walls, deep pockets, sharp inside corners, and tolerances that are difficult to reach. We send you a DFM report with practical suggestions and provide detailed explanations whenever you have questions. Every change is confirmed with you before machining starts.

Surface Finishing

We offer anodizing, bead blasting, polishing, plating, passivation, black oxide, and powder coating. Depending on the finish, it protects against corrosion, adds wear resistance, or gives the part the appearance you specify. We integrate the surface finishing and manufacturing processes internally to achieve consistency in both efficiency and quality.

Assembly and Quality Inspection

We can assemble the ordered multiple components, and we can also combine them with the components that you purchased from outside. Before shipping, we check each order against your drawing using CMM and laser scanning, and we can supply inspection reports and material certificates when you need them. Our company is ISO 9001 certified and verified by SGS and TÜV, with products certified for RoHS, FDA, and CE requirements.

Why Choose Metal CNC Machining

Metal CNC machining offers strength, hardness, and long-term stability for parts that work under real demands. We bring these advantages to your parts by matching the metal, the machining process, and the finish to how your part will be used.

Strength and Durability for Working Parts

We produce metal parts that retain the density and strength of the original stock, making them suitable for load-bearing and high-wear parts such as brackets, shafts, and housings.

High Hardness and Wear Resistance

Our metal CNC machining service works with materials that offer high hardness, wear resistance, and strength, helping your parts withstand friction, repeated contact, and demanding working conditions.

Dimensional Stability Over Time

Metals resist creep and moisture-related swelling, and our metal CNC machining capabilities make full use of these properties to produce parts with stable dimensions, reliable fits, and long-term performance.

Improved Surface Protection

Our metal CNC machining service includes in-house finishing such as anodizing, plating, passivation, and powder coating, adding the protection and appearance your parts need.

Applications of Our Metal CNC Machining

We supply precision metal parts to industries with demanding performance and reliability requirements, such as:

Medical Device

Agriculture

Industrial Machinery

Sports and Recreational

Mining and Metallurgy

Aerospace

Metal CNC Machining FAQ

How accurate is metal CNC machining?

For precision features, we can achieve tolerances down to ±0.025 mm (±0.001 in) with proper machining conditions.

Can you machine large metal parts?

Yes. We run machining centers with a range of work envelopes, so we can handle both small precision components and larger parts. For large parts, we plan the clamping and machining sequence to keep flatness and dimensions stable across the whole part.

How is metal CNC machining different from 3D printing?

CNC machining is more precise and accurate than 3D printing, and it works with a wider range of materials, so it suits parts with tight tolerances. 3D printing is usually faster and lower in cost, which makes it a good fit for prototypes and low-volume production.

Can you make replacement parts from an existing sample?

Yes. If you have a physical part but no complete drawing, we can assess the part's dimensions and geometry to determine whether it can be reproduced. Additional information may be needed for critical tolerances or material requirements.

Ready to Start Your Metal CNC Machining Program?

Upload Your CAD File or 2D Drawing

We value the relationships we build with our customers. If you have questions about our services, need support, or just want to chat about your project, we're happy to help. Reach out to us anytime, and let's start working together to bring your ideas to life.

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