Custom CNC Milling Services
- ISO 9001:2015 certified with ±0.01mm machining tolerance
- 30+ materials and 20+ surface finishes available
- Parts delivered as fast as 1 day with 30% shorter lead time
Our CNC Milling Capabilities
MachMaster provides high-precision CNC milling services using advanced 3-axis, 4-axis and 5-axis machines—ideal for both prototyping and production. Backed by our in-house machining team and supplier network, we ensure stable quality, fast turnaround, and consistent performance across every order.
3-Axis CNC Milling
Ideal for flat surfaces, slots, and pockets, 3-axis CNC milling is widely used in aerospace, automotive, and medical industries to produce accurate and repeatable parts with tight tolerances.
4-Axis CNC Milling
With an added rotary axis, 4-axis CNC milling enables more complex geometries such as curves, spirals, and angled features—allowing for higher flexibility and multi-sided machining in a single setup.
5-Axis CNC Milling
Perfect for intricate contours and complex 3D surfaces, 5-axis milling allows full access to multiple sides of a part in a single setup—ideal for aerospace, medical, and high-precision components.
Manage Your Machining Needs with MachMaster
Materials for CNC Milling Parts
We support over 30 types of metals and plastics for CNC milling, offering flexibility from rapid prototyping to full-scale production. Get instant quotations, compare material costs, and choose the best fit for your design and performance needs.
Aluminum
Aluminum is a lightweight, silver-white metal known for its excellent machinability and strength-to-weight ratio. It is ideal for CNC milling due to its low density, corrosion resistance, and clean surface finish.
| Available Aluminum at Machmaster: | Aluminum 6061, 6061-T6, Aluminum 2024, Aluminum 5052, Aluminum 5083, Aluminum 6063, Aluminum 6082, Aluminum 7075, 7075-T6, Aluminum ADC12 (A380) |
Stainless Steel
Stainless steel is a strong and durable alloy containing at least 10.5% chromium, offering excellent corrosion resistance. It’s widely used in high-strength applications across industrial, medical, and structural fields.
| Available Stainless Steel at Machmaster: | Stainless Steel SUS201, SUS303, SUS 304, SUS316, SUS316L, SUS42, SUS430, SUS431, SUS440C, SUS630/17-4PH, AISI 304 |
Brass
Brass is valued for its low friction, good machinability, and high electrical conductivity. Its golden appearance also makes it a popular choice for both decorative and functional components.
| Available Brass at Machmaster: | Brass C27400, C28000, C36000 |
Copper
Copper offers outstanding electrical and thermal conductivity, along with excellent ductility and corrosion resistance. It is easy to machine and weld, making it suitable for electrical and thermal management applications.
| Available Copper at Machmaster: | Copper C101(T2), C103(T1), C103(TU2), C110(TU0), Beryllium Copper |
Titanium
Titanium is a lightweight yet high-strength metal with excellent corrosion resistance. Commonly used in aerospace, medical, and high-performance industries, it provides a superior strength-to-weight ratio for demanding applications.
| Available Titanium at Machmaster:: | Titanium Alloy TA1, Alloy TA2, Alloy TC4/Ti-6Al 4V |
Plastics
Plastics are a versatile and cost-effective option for CNC machining. They offer faster processing speeds and come in a wide range of types, suitable for both structural and functional components in prototyping and production.
| POM | PEEK | HDPE | PET |
| Nylon | PTFE | PVC | PP |
| ABS | PC | PMMA |
Surface Finishes for CNC Milled Parts
CNC-milled parts often show visible tool marks. To improve surface quality or appearance, MachMaster offers a range of finishes that enhance both function and aesthetics.
As machined
The part is left as-is from CNC machining, offering a cost-effective solution with visible tool marks and a standard roughness of 3.2 μm (126 μin), plus deburring for safe handling.
Anodizing
Anodizing enhances corrosion and wear resistance by forming a protective oxide layer on aluminum or titanium surfaces. It also allows for decorative coloring and improves overall part durability.
Alodine
Applied primarily to aluminum, Alodine coating creates a corrosion-resistant and paint-ready surface, significantly improving both protection and finish durability.
Bead Blasting
Bead blasting produces a uniform matte finish by removing surface imperfections. Commonly used to improve appearance before anodizing, plating, or coating.
Brushing
Brushing applies a fine, directional texture using abrasive belts or pads. Often used for decorative metal finishes or to visually mask minor surface defects.
Powder Coating
This dry finishing process applies powder to metal parts, then cures it into a tough, uniform coating. It offers excellent durability and is available in many colors and textures.
Electroplating
Electroplating uses electric current to deposit a metal layer onto a part, enhancing hardness, conductivity, and appearance with finishes like chrome or nickel.
Polishing
Polishing removes surface flaws and creates a reflective, smooth finish. It’s used to improve aesthetics, reduce friction, and prepare parts for secondary coatings.
CNC Milling Tolerances for Custom Parts
| Type | CNC Milling | |
|---|---|---|
| Maximum Part Size |
4000×1500×600 mm
157.5×59.1×23.6 in. |
|
| Minimum Part Size |
4×4 mm
0.1×0.1 in. |
|
| Minimum Feature Size |
Φ 0.50 mm
Φ 0.00197 in. |
|
| Standard Tolerances |
Metals: ISO 2768-m
Plastics: ISO 2768-c |
|
| Linear Dimension |
+/- 0.02 mm
+/- 0.001 in. |
|
|
Hole Diameters
(Not Reamed) |
+/- 0.025 mm
+/- 0.001 in. |
|
| Shaft Diameters |
+/- 0.025 mm
+/- 0.001 in. |
|
| Threads and Tapped Holes |
Diameter: Φ 1.5-5 mm, depth: 3×diameter
Diameter: Φ 5 mm or more, depth: 4-6×diameter |
|
| Text | Minimum width of 0.5 mm, depth of 0.1 mm MachMaster can use CNC engraving or laser carving to create standard text based on customers’ requirements. | |
| Edge Condition | Sharp corners will be removed in the form of a chamfer or radius. The size of the chamfer, or resulting radii, must be indicated on the drawing. | |
Real-World CNC Milling Samples
See examples of CNC machined parts we’ve produced for aerospace, medical, electronics, and other demanding industries.
Speed Meets Precision at MachMaster
See our team, process, and precision in action at Xiamen MachMaster Co., Ltd—where every part is backed by expertise, systems, and measurable results.
CNC Milling Highlights
Tight Tolerance Accuracy
Parts machined to ±0.01 mm for functional fit, surface finish, and critical dimensions.
Low-Volume Friendly
From one-off prototypes to short runs—no MOQ, fast response, flexible output.
Precision for Complex Parts
Equipped with 60+ CNC machines for multi-surface and complex contour machining.
Material Versatility
Supports aluminum, stainless steel, brass, POM, PC, and other engineering plastics.
ISO 9001 Certified Workflow
Triple-stage inspection ensures every part meets your spec before shipment.
Rapid Lead Times
Prototypes delivered in as fast as 1 day, with full tracking and schedule control.
Advantages of CNC Milling
CNC milling provides a range of benefits that make it a preferred manufacturing method across industries such as aerospace, medical, and automotive.
Versatile for Complex Designs
CNC milling supports both simple parts and intricate geometries. It adapts to a wide range of materials and shapes, enabling fast customization without major tooling changes.
High Precision & Accuracy
Computer-controlled systems ensure precise tool paths, delivering consistent results and tight tolerances for complex or high-spec applications.
Ideal for Angled & Detailed Features
This process excels at producing angled surfaces, grooves, holes, chamfers, and other fine details—delivering clean results with minimal secondary finishing.
Improved Efficiency & Cost Control
Automation reduces material waste and rework. The ability to perform multi-step processes on a single machine helps lower overall production costs.
CNC Milling Overview
What’s the Difference Between CNC Milling and CNC Turning?
The key difference lies in how material is removed. In CNC milling, a rotating cutting tool moves across a stationary block or bar of material to create the desired shape. In contrast, CNC turning (using a lathe) involves spinning the material while a stationary tool shapes it.
CNC milling is ideal for complex geometries, flat surfaces, and irregular profiles. CNC lathes are better suited for cylindrical or conical parts like shafts or bushings.
How does CNC Milling Work?
CNC milling begins with a digital 3D model designed in CAD software. This model is converted into G-code, which instructs the CNC milling machine how to shape the material.
Unlike CNC turning, where the material spins, CNC milling uses a high-speed rotating cutting tool to remove material from a fixed block or bar. The tool path is computer-controlled, ensuring high accuracy and repeatability in producing CNC milled parts.
Why Choose CNC Milling Services?
CNC milling offers exceptional flexibility for creating custom components with complex features and tight tolerances. It supports both prototyping and production with high repeatability.
At MachMaster, our multi-axis milling centers and automatic tool changers handle operations like drilling, cutting, threading, and surface finishing—all in a single setup. This reduces handling time and ensures dimensional accuracy for parts with intricate geometry.
To optimize your quote, upload a detailed 3D CAD file with tolerance, material, surface finish, and size info. We’ll provide fast, reliable feedback on your CNC milling project.
What are the Types of CNC Milling Operations?
CNC milling services include various operations suited for different part designs and functions. Common types include:
Gear Milling
Thread Milling
Plain Milling
Form Milling
Face Milling
Angular Milling
Profile Milling
Straddle Milling
Each method allows different material removal strategies and is chosen based on geometry, tooling, and performance needs.
Dive Deeper Into Our Resources
CNC Milling Basics & Guides:
- What Is CNC Milling?
- How CNC Milling Machine Works?
- CNC Milling Precision: What It Really Means
- Basic CNC Milling Programming Examples to Try
- Visual Guide to CNC Milling Examples
Comparisons & Applications:
Still haven’t found what you’re looking for? Don’t hesitate to contact us. We’re available around the clock to assist you.
Tell Us What You Need
At MachMaster, our engineers review every request and respond with tailored solutions.
Your files are kept strictly confidential and will only be used for quoting and manufacturing purposes.
- info@machcncmaster.com
- +86 139 5006 6486