14 years one-stop China custom CNC machining parts factory
Online Custom CNC Milling Services
We provide high-precision on-demand CNC milling services ideal for milled prototypes and low-volume CNC machined parts. With tolerances up to ±0.008 mm and delivery in as fast as 1 day.
Instant Pricing & DFM Analysis
Parts Manufactured in as Fast as 1 Day
6 Project Engineers with 20+ Years of Experience
Over 40 Certified Materials & Surface Finishes
Strict Tolerances up to ±0.005 mm
15 yearsMachining Experience
2 HoursQuick Quote
0 PcsMinimum Order Qualities
98%Yield
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China Online Custom CNC Milling Parts Services
We offer precision 3-axis to 5-axis CNC milling services, capable of accurately manufacturing everything from simple parts to complex geometries. 3-axis and 3+2-axis machining provide cost-effective solutions for simpler components, while 5-axis machines enable multi-angle precision cutting to meet the demands of high-complexity parts. Whether for prototyping or full-scale production, we ensure outstanding accuracy, quality, and efficiency — helping you bring your design ideas to life, faster.
Custom 3-axis and 3+2-axis CNC Milling Services
3-axis CNC milling is the most cost-effective solution for machining simple parts. It offers low production costs, easy operation, and can achieve a precision of ±0.05 mm. This method is especially suitable for prototype development and low-volume production, effectively controlling machining costs while ensuring high-quality results.
Tolerances as tight as +/- 0.0003 in.
Custom milled parts for prototyping and production.
Quick turn milling services.
Custom 5-axis CNC Milling Services
5-axis CNC milling allows for multi-surface machining of complex parts in a single setup, significantly improving both precision and efficiency. It is the preferred process in high-precision industries such as aerospace and medical, and is especially well-suited for machining complex curves and irregular geometries.
Achieves +/- 0.0002 in. precision.
Custom turned parts for prototyping and production
Quick turn turning services.
Why Choose Us
High-Quality Parts with Tight Tolerances
As an ISO 9001-certified manufacturer, VMT delivers high-quality CNC machining parts, expertly handling complex designs. We follow international best practices, achieving dimensional tolerances as tight as ±0.0004″ (0.01mm), ensuring our products meet your exact specifications and fulfill all your requirements.
Fast Quoting and Delivery
VMT provides rapid production and delivery of CNC machining parts, enabling flexible iterations and helping you stay ahead in the market. Upload your design and receive a CNC quote within 2 hours. Our engineering team offers precise cost calculations, transparent pricing, and reduced lead times, significantly boosting your competitiveness.
Engineering Support
Leveraging cutting-edge technology and equipment, we ensure the highest quality, precision, and performance of automotive parts. To expedite our clients' CNC machining product development and validation, we operate over 100 advanced CNC machines and a specialized rapid prototyping team. From design analysis to mass production, we can deliver within 24 hours, providing full support to ensure client success.
Quality Inspection
We maintain a comprehensive quality control system, including IQC, IPQC, and FQC, overseeing every stage from raw materials to final shipment. We retain inspection reports for two years and are equipped with advanced 3D and 2D measuring instruments, as well as a laboratory for precise dimension checks and material compliance. We offer CMM inspection, material testing, and certification of conformity to ensure exceptional quality.
Surface Finishing
We collaborate with surface finishing factories with over 10 years of experience, offering more than 40 surface finishingprocesses. Two senior engineers work on customizing cost-effective solutions based on your needs, strictly controlling every step to ensure a 98% product yield and outstanding surface finishingquality.
Certifications and Patents
We are certified by ISO9001:2015, IATF16949, and SGS, and hold 12 patents. With state-of-the-art CNC technology, we ensure precise and efficient CNC machining part machining, meeting your highest expectations for size, performance, and strength, and providing exceptional service.
Custom CNC Milling Services Solutions
Rapid Milling Prototypes
We offer rapid CNC prototype milling services capable of producing highly functional samples that closely match the final product. With instant quoting and fast delivery, we help accelerate your design validation process, efficiently test product performance, and shorten the time from concept to mass production. Whether you need visual prototypes or functional test parts, we respond quickly to ensure you receive high-quality machined components on time.
Small and Large Batch CNC Milling Production
We provide professional CNC machining services for quantities ranging from 10 to over 1,000 parts, covering the full process from prototype development to mass production. With advanced equipment and strict quality control, we ensure precise tolerances of ±0.01 mm, helping clients achieve a smooth transition from trial production to full-scale manufacturing. Leveraging intelligent manufacturing systems, we flexibly respond to varying batch sizes, delivering stable, high-quality machining solutions at optimal costs.
CNC Milling Parts Library
We provide professional CNC machining services for industries such as medical, aerospace, automotive, and electronics, covering everything from prototyping to mass production. All showcased cases are real, customer-authorized parts, including precision components for industrial automation, robotics, and more. Whether it's a startup prototype or large-scale production, we deliver reliable solutions to support our clients' end-to-end manufacturing needs—from design to finished product.
China Custom CNC Milling Parts Materials
VMT offers comprehensive CNC milling material solutions for both plastics and metals, covering traditional and advanced engineering materials. From aluminum alloys to specialty plastics, our extensive material inventory meets a wide range of precision machining needs. If you don’t find the right material, our team of experts will tailor a solution to ensure optimal performance for your product. Whether for standard production or specialized applications, we provide matching material recommendations and technical support.
Metal Materials
We offer a full range of metal CNC machining services, delivering precision-crafted custom parts from prototyping to end-use production. Metal materials are known for their high strength and durability, making them an ideal choice for a wide range of applications. Whether you need a prototype or high-volume production, we are equipped to meet your metal machining needs.
Plastics Materials
We offer a wide range of plastic CNC machining services, from prototypes to finished parts. Plastics are easy to machine and offer diverse performance characteristics, making them an ideal choice for industries such as medical and electronics. Whether you need a trial sample or full-scale production, we can meet your plastic machining needs with precision and reliability.
China Custom CNC Milling Parts Surface Finishing
VMT offers professional surface finishing services, including anodizing, chrome plating, sandblasting, and more, to significantly enhance the appearance and performance of CNC machined parts. Our finishing solutions improve surface hardness and corrosion resistance while also enhancing aesthetics and extending part lifespan. Whether you're aiming to improve visual appeal or boost functionality, we recommend the most suitable surface treatment based on your needs—ensuring your parts achieve both exceptional visual quality and outstanding mechanical performance.
As-Machined Finish
The standard machined finish retains visible CNC tool marks and is the most economical and time-efficient option. Minor burrs may remain and can be removed in secondary processes.
Anodizing
Anodizing enhances the corrosion and wear resistance of aluminum parts and offers a variety of color options. Pre-treatment with sandblasting further improves surface performance and aesthetics.
Powder Coating
Powder coating applies a thick, durable, and corrosion-resistant layer through electrostatic spraying and high-temperature curing. It offers a wide range of color choices and is more durable than traditional paint.
Hard Anodizing
Type III hard anodizing uses 120-grit sandblasting as a pre-treatment to produce a thicker and more durable coating. It combines the corrosion resistance of Type II anodizing with superior wear resistance, making it ideal for high-performance applications.
Chrome Plating
Chrome plating is an electroplating process that forms a chromium layer on metal surfaces, improving wear and corrosion resistance while providing a bright, decorative finish.
Blue Zinc Plated
Blue zinc plating involves passivation of the zinc layer to form a blue-tinted protective film. It offers both rust resistance and decorative appeal.
PVD (Physical Vapor Deposition)
PVD is a vacuum coating process that creates ultra-hard metallic or ceramic coatings on the surface, combining excellent wear resistance with a decorative finish.
Electrophoresis Coating (E-coating)
Electrophoresis uses electric current to evenly deposit a paint layer onto metal surfaces, forming a matte, high-corrosion-resistant coating commonly used in automotive parts.
Nickel Plating
Nickel plating, either electrolytic or chemical, deposits a nickel layer on the surface to enhance corrosion resistance, wear resistance, and appearance. It is widely used in both industrial components and consumer products.
Laser Carving
Laser engraving uses focused laser beams to permanently mark patterns or text on the surface with high precision and no physical contact. It is suitable for metals, plastics, and various other materials.
Brushed
Brushing is a mechanical process that creates fine, linear textures on metal surfaces. It offers scratch resistance and an elegant decorative appearance, often used in electronics and construction products.
Polishing
Polishing removes tool marks and smooths the surface, improving gloss and appearance while reducing surface roughness. It can achieve a range of gloss levels and surface textures.
Custom CNC Machining Ordering Process
Upload Your CAD File
Upload your file directly or send your project information through the quote page. All files support NDA.
Quotation and DFM Analysis
We will send back the design for manufacturability analysis and real-time quotation within 12 hours.
Start Production
Once the order is confirmed, we will start the manufacturing process using your CAD design.
Receive Your Machining Parts
The prototype or part will be produced within a few days and sent directly to you by international courier.
Custom CNC Milling Tolerances
VMT strictly adheres to ISO 2768 and ASME Y14.5 standards to provide professional CNC machining tolerance services. For metal parts, we apply ISO 2768-m (±0.05mm) by default, and for plastic parts, ISO 2768-c (±0.1mm). Upon request, we can achieve high-precision tolerances down to ±0.025mm. We also support GD&T (Geometric Dimensioning and Tolerancing) to ensure precise geometric control. Our team optimizes machining strategies based on material properties and part geometry, ensuring all components—from cost-effective parts to high-end precision assemblies—meet your technical specifications. If no drawing is provided, we can assist in establishing appropriate tolerance standards.
| 3-Axis | 4-Axis | 5-Axis | |
| Maximum Part Size | 1000 x 500 x 500 mm | 1000 x 500 x 500 mm | 4000×1500×600 mm |
| Minimum Part Size | 5 x 5 x 5 mm | 5 x 5 x 5 mm | 5 x 5 x 5 mm |
| General Tolerances | ±0.1 mm | ±0.1 mm | ±0.1 |
| Lead Time | Delivery of simple parts can be as fast as 1 day. | 5 bussiness days for most projects. | 5 bussiness days for most projects. |
Custom CNC Milling Design Guide
VMT strictly adheres to ISO 2768 and ASME Y14.5 standards to provide professional CNC machining tolerance services. For metal parts, we apply ISO 2768-m (±0.05mm) by default, and for plastic parts, ISO 2768-c (±0.1mm). Upon request, we can achieve high-precision tolerances down to ±0.025mm. We also support GD&T (Geometric Dimensioning and Tolerancing) to ensure precise geometric control. Our team optimizes machining strategies based on material properties and part geometry, ensuring all components—from cost-effective parts to high-end precision assemblies—meet your technical specifications. If no drawing is provided, we can assist in establishing appropriate tolerance standards.
| Recommended Size | |
| Radii | Internal radii should be at least 1/3 of the cavity depth. Use larger radii whenever possible. |
| Threads and Tapped Holes |
Diameter Φ 1.5-5 mm, depth: 3 times the diameter. Diameter Φ 5 mm or larger, depth: 4-6 times the diameter. VMT can produce threads of any specification and size as required by the customer. |
| Minumum Wall Thickness | For metals: 0.8 mm; For plastics: 1.5 mm. Thicker walls ensure better structural integrity. |
| Text | CNC Milling: Minimum width of 0.5 mm and depth of 0.1 mm. VMT can create standard text via CNC engraving or laser engraving as per customer requirements. |
| Holes | Minimum diameter of 1 mm. Hole depth should not exceed 4 times the diameter for best results. |
| Min. feature size | Ø 2.5 mm |
| Internal edges | R 8 mm |
12 Quality Inspection Process
Learn how VMT's quality control team maintains strict quality standards by conducting dimensional and cosmetic inspections of each order during production. If there is any problem, we will communicate and solve it as soon as possible, or solve it in your way.
DFM Analysis
Before CNC machining, engineers conduct a DFM analysis to identify and resolve potential issues in advance. This ensures optimized designs for efficient manufacturing, minimizes defects, and reduces machining costs.
Dimensional Tolerance Determination
Check whether the parts meet the specified dimensional tolerances, ensure the technical feasibility of the tolerance design, and optimize the production process to meet your quality requirements and cost-effectiveness.
Material Testing
We have long-term stable partnerships with material suppliers for decades and can provide third-party inspection reports from organizations such as SGS, CTI, and TUV.
CNC Machining Production
We have a dedicated team to track order progress, maintaining detailed records for each production run. Photos and videos are transparently shared with customers, keeping you informed about the machining process.
FQC Detection
During the machining production process, dimensional tolerance inspections are conducted every two hours, and the first article is inspected to ensure it meets design and quality standards. This guarantees process stability, product consistency, and improved production efficiency.
SPC / CKP
Implement statistical analysis to monitor and control the manufacturing process and provide inspection reports.
Problem Found
If any deviations, defects, or non-compliance issues are discovered during the machining process, an immediate meeting is held to address the problem.
Problem Solving
Respond within 30 minutes, provide solutions within 2 hours, and resolve within 1 day.
OQC Detection
Before CNC parts leave the factory, 100% dimensional inspection is conducted according to customer drawings. Inspection reports are provided before proceeding to the next processing step.
Surface Finishing
In addition to conventional surface treatments, there are a variety of special surface treatments. We have a full-time SQE to follow up and control each process in the surface treatment factory. After returning to our workshop, the product appearance will be 100% inspected.
Full Inspection
QC specilists will check the parts at every step with testing equipments accordingly,like 3D / 2D project, height/thread /roughness gauge. Offering inspection report with full dimensions for each part.
Package
Many different ways to pack the goods,avoid the damage, easy to carry and enviornmentally，Accept customer customization, commonly used pearl cotton, bubble bag.
CNC Machining Workshop
Established in 2010 and is located in Guangming District, Shenzhen, Guangdong Province, China,has own factory cover an area of 5000 m2. We are customized machining parts manufacturer with 100 employees,can provide items within 24 hours.
100 sets machines including 4 & 5 axis imported CNC centers,turning & milling machines for fast delivery, 6 engineers who have been working for more than 20 years to provide you with free design service to ensure that parts can reach the appearance of iPhone, the accuracy of Atomic Clock, tolerance per 0.01 mm, the key procedure controlled by CPK1.68 or more. At the same time,2 engineers specialized in surface finishingcontrol the finish procedures. Passed ISO 9001:2005 & IATF 16949 & SGS in 2015.
Devoted to helping 10,000 enterprises to break through the difficulty of processing, and strive for becoming a leader in high-efficiency, high-yield, and precise parts. In the past 15 years, our business has spread to 62 countries around the world,covered military, medical, semiconductor, Telecommunication, automotive and other fields.No matter how complicated part is, or any technical problems faced with,we can find the solution and offer you with professional service.
100+
Sets of Machine
120+
Countries Shipped
100,000+
Parts Manufactured
How Does Custom CNC Milling Work?
CNC Milling (Computer Numerical Control Milling) is a precision machining process that uses computer-controlled milling tools to cut materials into desired shapes. Here's a breakdown of how it works and its key features:
Key Features
Typical Applications: Mold making、Aerospace components、Precision mechanical parts
Advantages of Custom CNC Milling
CNC milling offers many advantages to the manufacturing industry:
Custom CNC Milling Applications
CNC milling is one of the most versatile and widely applied machining processes in modern manufacturing. Its ability to produce precise, complex, and repeatable parts makes it essential across numerous industries.
Other Industry Applications
Our business has grown to now cover 62 countries worldwide. We have done products in the electronics industry, industrial industry, automotive industry, and medical industry. If you need custom CNC Machining Components parts service, we have rich manufacturing experience and can turn your ideas into products.
VMT : 5-axis CNC Machining Petrochemical Connectors Parts Project
How to process difficult 5-axis CNC machining petrochemical connectors by dismantling the process, saving materials and combining 2+3 methods, and reduce the cost to 20%?
Our engineers conduct a process review according to the customer's drawings. During the review, it is found that it is an irregular eccentric shaped part. According to the traditional processing method, it can only be produced by a 5-axis machine, and the material that needs to be purchased must be twice the outer diameter of the part. . The processing area is large, the time is long, and materials are wasted.
CNC Machining FAQs
What is CNC milling service?
CNC milling service involves using computer-controlled machines to cut, drill, and shape materials with extreme precision. It's ideal for producing complex parts from metal, plastic, or composite materials—whether you need a prototype or high-volume production.
How much does CNC milling cost per hour?
CNC milling typically costs between $60 to $150 per hour, depending on factors such as machine type (3-axis vs. 5-axis), material used, part complexity, and required tolerances. For large or recurring projects, we offer custom pricing.
How much does CNC service cost overall?
The total cost depends on part design, quantity, material, and surface finish. A small batch of simple aluminum parts may cost a few hundred dollars, while complex or high-precision components can run higher. Contact us for a fast, free quote tailored to your project.
What is CNC milling?
CNC milling is a subtractive manufacturing process where rotating cutting tools remove material from a solid workpiece based on a programmed design (G-code). It’s known for producing high-precision parts efficiently and repeatedly.
What are your CNC milling capabilities?
We offer:
What is the difference between CNC milling and CNC turning?
Milling is best for complex, prismatic parts. Turning is ideal for cylindrical components.
What is 5-axis CNC machining?
5-axis machining allows the cutting tool to move in five directions, enabling more complex part geometries and reducing the need for multiple setups. This results in better precision, smoother surfaces, and faster turnaround.
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2024-08-02
The manufacturer is strongly recommended. In the past few years of cooperation we have ordered several machined products from aluminum and stainless steel. These products are manufactured in compliance with tolerance requirements and require product finish. Now I have ordered another one. The service is excellent and any questions can be answered and resolved in time.
2021-05-13
The dimensions are all customized according to my drawings no tolerance issues and the parts are delivered on time. I am very satisfied with it.
2021-04-06
I pay much attention to the surface treatment aspect of this product. I was a little worried about the cooperation at the beginning. I am very satisfied with the product now and hope to cooperate for a long time.
2022-09-22
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