CNC Milling Services

Reliable high quality on-demand CNC milling services for rapid prototypes and low volume parts.

All your designs are secure and confidential

What is CNC milling?

CNC milling uses rotational cutting tools to get rid of product from a workpiece to produce completed parts and products. This manufacturing procedure works well for numerous products, consisting of steels, polymers, timber, and glass. CNC milling systems typically have 3 straight levels of liberty: the X, Y, and Z axis. This allows for first-class precision and description. ECOREPRAP likewise supply more advanced, 5-degree systems, where the tool head and machining bed (A and B axis) can also rotate. 5-axis CNC makers can generate and get rid of high geometric complexity without needing several device arrangements.

Our CNC milling process produces custom prototypes and end-use production parts in as fast as 1 day. We use 3-axis milling,4-axis milling and 5-axis milling processes to manufacture parts from more than 90 engineering-grade plastics and metals. With machined production parts, you can also get more competitive pricing at higher quantities in addition to first article inspection (FAI) reporting, material certifications, and additional finishing options like anodizing and chromate plating.

CNC milling service is commonly used for:
functional prototypes
jigs and Fixtures
production components in lower volumes

China CNC factory

Milling Capabilities

From quick prototyping to customized making runs, take advantage of top-notch 3-axis, 4-axis, and complete 5-axis CNC milling for very accurate and excellent CNC milling products.

3 Axis CNC Milling

4 Axis CNC Milling

5 Axis CNC Milling

CNC Milling Gallery

CNC Milling Materials

CNC Machining Materials Metals


cnc plastic parts


CNC Milling Surface Finishes

Enhance your component’s performance by choosing top-notch surface finishes that improve roughness, hardness, chemical resistance, and aesthetics.

Precision CNC Milling Tolerance

We follow DIN ISO 2768-mk standards for CNC milling.
CNC machining tolerance

CNC Milling Design Guidelines

Inspect the recommended and practically feasible worths for the most common features encountered in CNC machined parts.


Recommended Size

Feasible Size

Min. feature size

Ø 2.5 mm

Ø 0.50 mm

Internal edges

R 8 mm

R 0.25 mm

Minimum wall

0.8 mm (for metals)
1.5 mm (for plastics)

0.5 mm (for metals)
1.0 mm (for plastics)


Diameter: standard
drill bit sizes
Depth: 4 x diameter

Diameter: Ø 0.5
Depth: 10 x diameter


Size: M6 or larger
Length: 3 x diameter

Size: M2

CNC Milling FAQs

ECOREPRAP works with vertical, horizontal, and multi-axis milling machines. The vertical milling machine is highly accurate equipment that carries out 3-axis milling, suitable for vertical surfaces and angular shapes.Our horizontal milling machines perform 4-axis milling and are suitable for heavy milling operations. Our multi-axis milling machines can move along different axes and cut at various angles. They include 2-, 3-, 4-, and 5-axis CNC milling machines.

yes, you can combine both manufacturing processes to reinforce your custom parts. Printed parts can be milled to achieve dimensions with tight tolerances or to meet surface quality requirements. Intelligently combining these two methods can ensure faster manufacturing, less waste, and lower costs. It even achieves higher accuracy and precision, repeatability, and sustainable production.

We can produce highly complex and intricate rapid prototypes and low-volume production parts. The CNC milling process is suitable for a wide selection of materials for various applications. Our CNC milling service can achieve standard tolerances of +/- 0.05mm. However, tighter tolerances of up to +/- 0.001mm are also possible.

The major difference between CNC milling and CNC lathe is in their machining process. CNC milling involves rotating the cutting tools against a stationary bar stock or workpiece. In contrast, a CNC lather works by rotating the bar stock or workpiece against a stationary tool. CNC milling is more suitable for machining irregular and flat surfaces, while CNC lathes work best for cylindrical or conical parts.

Typically, we recommend a minimum wall thickness of 0.5mm for metals and 1mm for plastics. However, these values largely depend on the size of the part; therefore the larger the part size, the higher the recommended minimum wall thickness should be. Please keep in mind that this does not imply that wall thicknesses with lesser values are unachievable. These recommendations are simply thresholds to limit the risk of warpage.

If a specific fillet radius is required, please specify. If not, the fillet radii that allow for easy machining will be added based on the machinist’s discretion. For a general idea, internal vertical edge radii could be >1/3*Depth and internal horizontal edges may be left sharp or have a 0.5mm to 1mm radius.

A 5-axis CNC milling machine can move a cutting tool in 5 axes, which allows the operator to simultaneously hit five different sides (or more) of a part depending on the design complexities. Resultantly, the tool is highly capable of creating highly complex products and parts.

With a 5-axis machine, the X, Y, and Z-axes are similar to a 3-axis machine layout. The table then rotates along the A-axis, as it does with the 4-axis. However, the 5-axis machine involves the pivoting action at the joint of the table, followed by rotation along the C-axis, which defines the fifth movement.

Let's get your projects started, together.