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3- & 5-Axis Milling
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CNC Milling Service

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3- & 5-Axis MillingSurface finishingLead times from 5 days

At our company, we specialize in providing top-quality 3- & 5-Axis Milling services to meet all of your machining needs. Our state-of-the-art equipment and experienced team of professionals allow us to deliver precise and accurate results every time.

We understand the importance of delivering high-quality products and services, which is why we place a strong emphasis on ensuring that every project we work on meets the highest standards of quality and precision. Whether you're looking for prototype development, production runs, or custom machining, we have the expertise and experience to get the job done right.

At our company, we believe in building long-term relationships with our clients by providing exceptional service and support every step of the way. Our goal is to exceed your expectations and deliver results that help you achieve your business objectives.

Thank you for considering our services, and we look forward to the opportunity to work with you!

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Non-Disclosure Agreement
Hongming sheng always respects the rights of intellectual property rights and opposes any plagiarism or counterfeiting. Without the approval of the customer, we cannot disclose any relevant information to a third party, including but not limited to product drawings, design plans, product pictures, molds, manufacturing processes, etc. Hongming sheng is willing to sign NDA with customers to protect the interests of both parties.

Our CNC milling service capabilities

From prototyping to full production runs. Our 3 axis, 3+2 axis and full 5-axis milling centers will allow you to produce highly accurate and quality parts to meet even your most stringent requirements.

Can’t decide if 3-axis, 3+2-axis or full 5-axis machining is best for you? Upload your CAD file for a free quote and manufacturability review that will identify any difficult-to-mill features.

3-axis and 3+2-axis CNC milling

3-axis and 3+2 axis CNC milling machines have the lowest start-up machining costs. They are used to produce parts with relatively simple geometries.

Maximum part size for 3-axis and 3+2-axis CNC milling

Size                                                              Metric units                                             Imperial units

Max. part size for soft metals                      2000 x 1500 x 200 mm                           78.7 x 59.0 x 7.8 in

[1] & plastics                                               1500 x 800 x 500 mm                              59.0 x 31.4 x 27.5 in

Max. part for hard metals [2]                       1200 x 800 x 500 mm                              47.2 x 31.4 x 19.6 in

Min. feature size                                          Ø 0.50 mm                                              Ø 0.019 in

[1] : Aluminum, copper & brass [2] : Stainless steel, tool steel, alloy steel & mild steel

Size                                                             Metric units                               Imperial units

Max. part size for soft metals                      2000 x 1500 x 200 mm             78.7 x 59.0 x 7.8 in

[1] & plastics

Max. part for hard metals [2]                      1200 x 800 x 500 mm                47.2 x 31.4 x 19.6 in

Min. feature size                                          Ø 0.50 mm                                Ø 0.019 in

5-axis CNC milling

5-axis CNC milling centers can produce parts with complex geometries and increase productivity by minimizing the number of machine setups.

Maximum part size for 5-axis CNC milling

Size                                                             Metric units                               Imperial units

Max. part size for all materials                    650 x 650 x 300 mm                 25.5 x 25.5 x 11.8 in

Min. feature size                                          Ø 0.50 mm                               Ø 0.019 in

Available materials for CNC machining

Here is a list of our standard CNC machining materials available through our online platform.

CNC Metals

Aluminum                  Stainless steel            Mild, Alloy & Tool steel             Other metal

6061-T6                     303                             Mild steel 1018                         Brass C360

6082                           304L                                                                            Copper C101

7075-T6                     316L                          Mild steel 1045                          Copper C110

5083                           2205 Duplex             Alloy steel 1215                         Titanium Grade 1

5052                           17-4                          Mild steel A36                            Titanium Grade 2

                                   15-5                          Alloy steel 4130                          Invar

2014                           416                           Alloy steel 4140                          Inconel 718

2017                           420                           Alloy steel 4340                          Magnesium AZ31B

2024                           430                           Tool Steel A2

6063                           440C                        Tool Steel A3

7050                           301                           Tool Steel D2

A380                                                           Tool Steel S7

MIC 6                                                          Tool Steel H13

                                                                    Tool Steel O1

CNC Plastics

Plastics                                                      Reinforced Plastic

ABS                                                           Garolite G-10

Polypropylene                                           Polypropylene (PP) 30%GF

Nylon 6                                                     Nylon 30%GF

Delrin (POM-H)                                         FR-4

Acetal (POM-C)                                        PMMA (Acrylic)

PVC                                                          PEEK





PTFE (Teflon)

Available surface finishes for CNC machining

Surface finishes are applied after machining and can change the appearance, surface roughness, hardness and chemical resistance of the produced parts.

                                                                      Name                                     Description

                                               This is our standard finish.

As machined (Ra 3.2μm /      Parts are machined and

 Ra 126μin)                            deburred, sharp edges are



                                              Smooth machining is like an

  Smooth machining               ‘As machined’ finish but with

  (Ra 1.6μm /   Ra 63μin)        slightly less evident machine

                                               marks. Parts are machined at

                                               a lower feed, no hand polishing

                                               is applied.

                                                 Parts are bead blasted with      

 Bead Blasted                          glass beads which results in

                                                a grainy texture.

                                               Parts are brushed and then

                                               anodized type II. Ideal for

Brushed + Anodized               increasing the corrosion

type II (Glossy)                       resistance of the part.

                                               Typically results in a glossy


                                                                                                                                   Parts are bead blasted and

                                               anodized type II. Ideal for

                                               increasing the corrosion

Bead blasted +                       resistance of the part.

Anodized type II (Matte)         Results in naturally matte

                                               colors. For glossy colors,

                                               please select the brushed

                                               anodizing option.

                                               Parts are machined and an

                                               anodizing type III coating is

As machined +Anodized        directly applied to the

type III (Hardcoat)                  surface. Ideal to improve

                                               corrosion and wear

                                               resistance of components.


                                              Powder coating is a strong, 

                                              wear-resistant finish that is

Powder Coated                     compatible with all metal


                                               Parts are brushed and                                           

 Brushed + Electropolished    electropolished. Ideal to

 (Ra 0.8μm / Ra 32μin)          reduce the micro-roughness

                                               of the part.

                                                    Applicable on steels, black

                                              oxide is a conversion coating

Black oxide                            used to improve corrosion

                                                     resistance and minimize light 


                                                                                                                   Parts are machined and a

                                              chromate conversion coating

                                              is applied. Ideal to increase

Chromate conversion            the corrosion resistance of

coating                                  the part while maintaining its

                                                     conductive properties. RoHS


                                                     Parts are brushed with a

Brushed (Ra 1.2μm /             #400 - 600 grit. Ideal to

Ra 47μin)                              reduce the surface

                                              roughness of the part.

                                                   Parts are manually polished

Polishing (Ra 0.8μm /          in multiple directions.

Ra 32μin)                             Surface is smooth and

                                             slightly reflective.

Other surface finishes are also available. Learn more about our metal and plastic surface finishing capabilities here.


We follow ISO 2768 standards for CNC Machining.

Limits for nominal size                           Plastics (ISO 2768- m)                Metals (ISO 2768- f)

0.5mm* to 3mm                                     ±0.1mm                                       ±0.05mm

Over 3mm to 6mm                                 ±0.1mm                                       ±0.05mm

Over 6mm to 30mm                              ±0.2mm                                        ±0.1mm

Over 30mm to 120mm                          ±0.3mm                                        ±0.15mm

Over 120mm to 400mm                        ±0.5mm                                        ±0.2mm

Over 400mm to 1000mm                      ±0.8mm                                        ±0.3mm

Over 1000mm to 2000mm                    ±1.2mm                                        ±0.5mm

Over 2000mm to 4000mm                    ±2mm

  • Please clearly indicate tolerances for nominal sizes below 0.5mm on your technical drawing.

CNC milling design guidelines

The table below summarizes the recommended and technically feasible values for the most common features encountered in CNC machined parts.

                                                                     Feature                      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)            0.5 mm (for metals)

thickness                1.5 mm (for plastics)           1.0 mm (for plastics)


                               Diameter:standard              Diameter: Ø 0.5

Holes                      drill bit sizes                        Depth: 10 x diameter

                                         Depth: 4 x diameter


                                        Size: M6 or larger               Size: M2

Threads                 Length: 3 x diameter

Quality assurance

  • ISO9001 certified Manufacturing Partners on request
  • Inspection report included in every order. Full dimensional inspection reports on request
  • Material certifications and test reports available on request
  • Batch inspection in concurrence with ISO2859
  • Strict NDA agreements with all Manufacturing Partners
  • Manufacturing Partner performance tracking on lead time and quality

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