Custom CNC Milling Services

SelenPreci provides CNC milling as a core part of our CNC machining services. We operate advanced 3-axis, 4-axis and 5-axis machining equipment to manufacture custom parts with high precision. Whether your project requires prototype or production parts, our CNC milling services deliver fast delivery and high quality.

■ Fast delivery – as soon as 3 days
■ CMM dimensional inspection
■ Expert DFM & process optimization

High-precision metal CNC milling in progress.

Our CNC Milling Capabilities


3-axis CNC milling machine for efficient production of simple geometric parts.
4-axis CNC milling machine equipped with a rotary axis for complex multi-angle machining.
High-precision 5-axis CNC milling center for machining curved surfaces and complex geometries.

3-Axis CNC Milling


SelenPreci’s 3-axis CNC milling delivers an economic and efficient solution. It is ideal for machining parts with simple geometries and flat surfaces.






4-Axis CNC Milling


SelenPreci’s 4-axis CNC milling comes with rotary capability. It supports more complex cutting across multiple angles without repositioning the part, boosting accuracy and efficiency.



5-Axis CNC Milling


SelenPreci’s 5-axis CNC milling provides outstanding versatility. It machines parts with curved surfaces or complex geometries while maintaining excellent precision and finish.


CNC Milling Parts Showcase

Custom 5-axis aluminum connecting rod with lightening pockets.
High-precision polished stainless steel stepped drive shaft.
Precision aluminum flange and gear housing with internal teeth.
Custom aluminum rectangular block with internal threading.
Anodized triangular aluminum control arm with concentric grooves.
Aluminum cylindrical mounting flange with a polished surface finish.
Precision CNC microchannel plate for heat exchanger applications.
Large diameter titanium alloy flange with a high-gloss face.

Advantages of CNC Milling

CNC milling delivers precision, repeatability, and design flexibility for custom prototypes and production parts.

High Precision and Consistency

Computer-controlled machining helps maintain dimensional accuracy and consistent quality across production batches.

Wide Material Compatibility

CNC milling supports metals such as aluminum, stainless steel, and brass, as well as selected engineering plastics.

Fast Turnaround Times

Optimized machining processes support efficient prototyping and small-batch production, depending on part complexity.

Excellent Surface Finish

Proper tool selection and machining strategies help achieve smooth surfaces and meet specified finishing requirements.

Cost-Effective for Low-Volume Production

CNC milling produces custom parts without expensive molds, suitable for prototypes and low-to-medium-volume orders.

Scalable Production

From prototypes to repeat orders, CNC milling supports changing production needs with consistent manufacturing processes.

Precision Inspection for CNC Milled Parts

We inspect critical dimensions, hole positions, and geometric features to ensure CNC milled parts meet drawing requirements.

Hexagon Explorer and CNC-4040ATL Coordinate Measuring Machines (CMM) for precise quality control and dimensional inspection.

▪ Dimensional accuracy verification
▪ Hole position inspection
▪ Geometric feature inspection

CNC Milling Services FAQ

What is the maximum size and tolerance you can achieve with CNC milling?
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Machining size and achievable tolerances depend on part geometry, material, and manufacturing requirements. SelenPreci provides dimensional inspection, including CMM inspection when required, to verify critical features against approved drawings.

Which file formats do you accept for CNC milling projects?
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We accept common CAD formats such as STEP, IGES, STL, DWG, and DXF. Our team can review your drawings and 3D models to assess manufacturability before production.

How long does it typically take to receive CNC milled parts?
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Lead time depends on part complexity, order quantity, material, and finishing requirements. Some projects can be completed in as little as 3–5 days, subject to engineering review and production scheduling.

What types of materials can you CNC mill?
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We support CNC machining of materials such as aluminum, stainless steel, carbon steel, brass, copper, and selected engineering plastics. Material availability and suitability can be confirmed based on your project requirements.

Do you offer surface finishing and assembly services after CNC milling?
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Yes. Additional finishing and assembly can be coordinated according to your project requirements. Please share your drawings and surface finish specifications so we can evaluate the suitable options.