Custom Online CNC Machining Services
At Yijin Solution, we provide custom CNC machining services for engineers, product teams, and procurement professionals who need precision parts delivered reliably. Our ISO 9001:2015 and ISO 14001:2015 certified facility in Shenzhen supports projects from prototype through production, serving clients across North America, Europe, and Asia-Pacific.
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Why Choose Our CNC Machining Service?
Whether you need a single prototype or reliable production at scale, Yijin Solution provides CNC milling (3-, 4-, and 5-axis) and CNC turning services to support both product development and ongoing manufacturing.
We machine a wide range of CNC materials, including aluminum, stainless steel, brass, titanium, and engineering plastics. From simple parts to complex geometries with tight tolerances, we deliver consistent quality backed by practical engineering support. Our team can assist with design review, manufacturability improvements, and cost optimization before production begins.
To reduce risk and improve consistency, every order follows a structured quality control process with dimensional inspection and clear documentation. We also support drawing review, DFM feedback, and inspection planning to help streamline production. With scalable capacity and expedited lead time options, we help you source custom CNC parts with stable quality and dependable delivery.
Our CNC Machining Services On Demand
As a qualified and reliable CNC machining company, Yijin Solution is equipped with advanced facilities to provide top- level CNC manufacturing services, including the following.
CNC Milling Services
We produce custom milled parts with complex geometries, tight tolerances, and multi-surface features. Our 3-, 4-, and 5-axis machining centers handle everything from simple pockets to intricate 3D contours across 50+ metals and plastics. Tolerances reach ±0.05 mm, with a range of surface finishes available to meet your exact specifications.
CNC Turning Services
Our CNC lathes and Swiss-type machines deliver custom turned parts with precise cylindrical profiles, threads, and fine surface finishes. We work with a wide selection of metals and engineering plastics, holding tolerances as tight as ±0.05 mm. Whether you need a single prototype or a high-volume production run, each part is machined to your design.
CNC Routing Services
We manufacture custom routed parts from wood, composites, plastics, and soft metals with clean edges and consistent dimensions. Our CNC routers are built for large-format sheet cutting, profiling, and engraving at production speed. Every part is programmed to your CAD files, so complex shapes and repeatable quality come standard.
Tolerances for CNC Machining
At Yijin Solution, we deliver consistent precision across all our CNC machining services:
- Standard tolerance: ±0.05 mm (0.002″)
- Precision tolerance: ±0.01 mm (0.0004″)
- Surface roughness: Ra 0.8-3.2 μm
Our advanced precision CNC machining equipment enables us to meet demanding specifications. For industries requiring ultra-precise components, such as medical devices or aerospace applications, we offer specialized machining services with enhanced quality control protocols.
CNC Machining Materials
There is a wide selection of materials with various specifications to produce your CNC machining parts.
The quotation of the custom CNC parts will differ depending on the different materials used.
Metal
Aluminum (7 types)
It is strong, which makes it ideal for mechanical parts, and its oxidized outer layer is resistant to corrosion from the elements.
- Aluminum A16061
- Aluminum A16063
- Aluminum A16082
- Aluminum A17075
- Aluminum Al2024
- Aluminum A15052
- Aluminum A380
Learn more about Aluminum CNC Machining Services
Stainless Steel (6 types)
Yijin Solution provides precision stainless steel CNC machining for durable custom parts—supporting prototypes to mass production for industries worldwide.
- 55201
- 55301
- 55303
- SS304
- 55316
- 55416
Learn more about Stainless Steel CNC Machining Service
Brass (9 types)
Yijin Solution offers precision brass CNC machining for custom parts and prototypes with excellent surface finish and fast production.
- C35600
- C36000
- C37700
- C37000
- C37100
- C28000
- C26000
- C24000
- C22000
Learn more about Brass CNC Machining Service
Copper (4 types)
Yijin Solution delivers high-precision copper CNC machining for custom parts, ensuring excellent quality, accuracy, and reliability.
- C11000
- C12000
- C12200
- C10100
Learn more about Copper CNC Machining Services
Titanium (5 types)
Yijin Solution provides precision titanium CNC machining for aerospace, medical, and automotive industries, ensuring high-accuracy parts to your specifications.
- Grade 2
- Grade 5 (Ti-6Al-4V)
- Grade 7
- Grade 9 (Ti-3Al-2.5V)
- Grade 23 (Ti-6Al-4V ELI)
Learn more about Titanium CNC Machining Services
Steel (6 types)
Mild steel has low carbon content, offering good machinability, weldability, and mechanical strength at a low cost.
- Steel S235JR | 1.0038
- Steel C45 | 1.0503
- Steel S355J2 | 1.0570
- Mild steel 1045
- Mild steel A36
- Mild steel 1018
Learn more about Steel CNC Machining Service
Alloy Steel (5 types)
Yijin Solution produces precision alloy CNC machined parts using advanced technology, delivering consistent, high-quality components for various applications.
- 4140 Steel
- 4340 Steel
- 1215 Steel
- 16MnCr5
- Specialty Alloys
Learn more about Alloy CNC Machining Parts
Tool Steel (6 types)
Copper is a metal with excellent thermal and electrical conductivity, and is often used to make wires, wire connectors, and other electrical applications in a wide range of applications.
- Tool steel A3
- Tool steel H13 | 1.2344
- Tool steel S7
- Tool steel O1
- Tool steel A2 | 1.2363
- Tool steel D2 | 1.2379
Learn more about Tool Steel
Plastic
ABS (1 type)
ABS CNC machining uses computer-controlled tools to produce precise, complex plastic parts. Yijin Solution delivers accurate custom ABS components.
Learn more about ABS CNC Machining Service
Polycarbonate (PC) (1 type)
Polycarbonate CNC machining produces precise, durable parts with high impact strength and clarity. Yijin Solution delivers custom components.
- Generic PC (Polycarbonate)
Learn more about Machining Polycarbonate
Nylon (1 type)
Nylon CNC machining produces precise, durable parts for many industries. Yijin Solution supplies high-quality custom nylon components.
- Nylon 66
Learn more about Nylon CNC Machining
Polypropylene(PP) (1 type)
Polypropylene CNC machining shapes plastic with precision for tight-tolerance parts. Yijin Solution delivers reliable custom components.
Learn more about Polypropylene CNC Machining
POM (2 types)
Delrin CNC machining creates strong, low-friction precision parts. Yijin Solution manufactures accurate custom Delrin components.
- Delrin 150
- Delrin 100 (AF)
Learn more about Machining Delrin (POM)
PTFE (Teflon) (1 type)
PTFE CNC machining produces chemical-resistant, low-friction parts. Yijin Solution delivers precise custom Teflon components.
Learn more about Teflon CNC Machining
PMMA (Acrylic) (4 types)
Acrylic CNC machining cuts and shapes acrylic for clear, precise parts. Yijin Solution provides custom acrylic components with smooth finishes.
Learn more about Acrylic CNC Machining
Polyethylene (PE) (1 type)
UHMW-PE CNC machining produces durable, low-friction components. Yijin Solution manufactures precise custom polyethylene parts.
- Generic UHMW-PE
Learn more about Machining UHMW Polyethylene
PEEK (3 types)
PEEK CNC machining creates high-performance parts for demanding applications. Yijin Solution delivers precise custom PEEK components.
- Generic PEEK
- USP Class VI PEEK
- PEEK GF30
Learn more about PEEK Material Machining
FR4 (1 type)
FR4 is a class of glass fiber epoxy laminate that is flame retardant, with similar properties to G-10.
Rubber (6 types)
Rubber CNC machining produces accurate custom rubber parts for various applications. Yijin Solution provides reliable precision solutions.
- Hydrolysis Resistant PU
- EPDM
- FKM
- Nitrile
- Silicone
- Neoprene
Learn more about Rubber CNC Machining Services
Carbon Fiber (1 type)
Carbon fiber CNC machining cuts lightweight, strong composite parts. Yijin Solution manufactures custom carbon fiber components.
Learn more about Carbon Fiber CNC Services
CNC Machining Surface Finishes
We offer a comprehensive range of surface finishing options to meet your aesthetic, functional, and protective requirements.
Surface Finish
SPECIFICATION
As-Machined
Ra 3.2 µm (125 µin), standard mill finish for non-cosmetic parts
Bead Blasting
Uniform matte/satin texture, Ra 1.6–6.3 µm
Anodizing Type II
10–25 µm oxide layer on aluminum, multiple colors available
Anodizing Type III (Hard Anodize)
25–75 µm dense coating, up to 70 HRC, for aerospace/military
Powder Coating
50–100 µm, wide color range, corrosion protection
Brushed Finish
Unidirectional satin grain, Ra 0.8–1.6 µm
Polishing (Mirror Finish)
High-gloss reflective, Ra 0.1–0.4 µm, for optical/medical parts
Yijin Solution Factory
Based in Shenzhen, China, Yijin Solution operates a full-scale CNC machining facility equipped with over 100 CNC machines. We serve clients across North America, Europe, and Asia-Pacific with reliable shipping and quality assurance on every order.
Industries We Serve
Our custom CNC machining services support a wide range of industries with precision parts tailored to specific application requirements. We deliver components for automotive, aerospace, medical devices, electronics, and consumer goods.
Our case studies highlight real projects and the machining approaches used to meet client specifications. Each example covers material selection, tolerances achieved, and production timelines—offering practical insights for engineers planning similar applications.
Free Design Support
Our engineering team provides free design consultation and manufacturability analysis for your components, helping you optimize your CNC machining project before production begins.
This collaborative approach reduces production costs and ensures your parts perform as expected. Our Design for Manufacturing (DFM) analysis includes:
- Material selection optimization
- Feature evaluation for manufacturability
- Tolerance analysis
- Cost reduction recommendations
- Assembly validation
Have a specific design and application in mind? Our professional sales team is ready to assist you with rapid CNC machining solutions.
Flexible Turnaround Times
We understand that project timelines are crucial. Our flexible turnaround options are designed to meet various production needs:
| Project Type | Turnaround Time |
|---|---|
| Urgent High-Precision Sample | Within 24 hours |
| New Mold Requirement | Mold production in 3 weeks, sample delivery within 5 days |
| Standard Prototyping | Typically 3-5 days |
| High-Volume Production | Based on project complexity, often between 2-4 weeks |
Whether it’s a rapid prototype or a high-volume production run, our service is designed to accommodate your deadlines.
CNC Machined Parts Made by Yijin Solution
From precision aerospace components to medical device housings, our CNC machining produces parts across a wide range of industries. Each part is machined to specification using metals and engineering plastics, with full dimensional inspection before shipping.
Advantages of Outsourcing CNC Machining to China
FAQs About CNC Machining Services
Find answers to common questions about CNC machining services, costs, materials, and production timelines.
1. What is CNC machining?
CNC (Computer Numerical Control) services, also known as CNC machining, are widely used in the manufacturing process across different industries.
An experienced operator usually uses a specialized machine tool to program a set of operations according to your part design.
The control system of the CNC machine allows the tool to perform the set operations and movements so that the final parts can meet your specific requirements.
2. How much does the CNC machining service cost?
The CNC machining cost depends on many factors and varies among different situations.
The material is a big factor. The machining difficulties can vary greatly depending on the materials you choose, which will affect the CNC machining cost.
The design complexity also makes a difference in the CNC machining cost.
It’s easy to understand that the more complex the design is, the more machining process is required and the higher the price will be.
Other factors such as market fluctuation and the order quantity can also affect the final quotation.
If you want to know the CNC machining cost for your project, send us a message and you will receive a quotation with manufacturing advice within 24 hours.
3. What are the major types of CNC machining?
There is a wide range of CNC machining services. Yijin Solution covers the most popular types that can support most of your CNC machining designs and projects, including the following:
- CNC Turning Services
- CNC Milling Services
- CNC Boring Services
- CNC Drilling Services
Other precision CNC machining services are also available on demand. Contact us to discuss details and get an instant quote.
4. What is a CNC machining center?
CNC machining center is basically an automated machine tool with a programmed control system.
Based on the position of the spindle, CNC machining centers can be divided into vertical, horizontal, gantry, and universal types.
Vertical CNC Machining Center:
The vertical CNC machining center usually adopts the column structure in fixed positions and a rectangular worktable.
There are usually three linear motion coordinates (X, Y, and Z axes) on the worktable although a fourth axis (A) can also be installed.
The vertical CNC machining center has a compact and simple structure with a lower price tag.
It’s easy to operate, observe the operations during the machining process, and debug the program if anything goes wrong.
This type of machining center is suitable for creating plates, sleeves, and plate parts.
However, the large parts with tall height can not be handled with a vertical CNC machining center due to the column’s height restrictions and its tool change mechanism.
Horizontal CNC Machining Center:
The horizontal CNC machining center adopts movable columns and the headstock between the two columns moves up and down along the guide rail during the manufacturing process.
There are usually three motion directions: Axis X moves between the left and right sides, axis Z moves between front and back, and axis Z moves between the up and down.
A fourth axis A can also be installed on the worktable just like the vertical CNC machining center.
The horizontal CNC machining center is often used for manufacturing spiral wires and cylindrical cams.
It’s not that easy to observe the debug program, test the pin cutting, monitor the manufacturing process, and clamp and measure parts.
However, it’s easy to discharge pins during the process.
Compared with the vertical CNC machining center, the horizontal types feature a more complicated structure that takes up larger space and leads to a higher price.
Gantry CNC Machining Center:
In most cases, the gantry CNC machining center features a vertical spindle, an ATC system and replaceable spindle head accessories.
The system is very functional and can be used for multiple purposes with a single machine.
This type of CNC machining center is suitable for parts of large sizes.
Universal CNC Machining Center:
The universal CNC machining center is a five-sided machining center. It features the functions of both the vertical and horizontal CNC machining center types.
When a workpiece is clamped, all sides, excluding the mounting surface, can be completed at one time.
There are basically two types of universal CNC machining centers:
1) The one that can work as a vertical or horizontal CNC machining center with the spindle being able to rotate 90°
2) The worktable rotates 90° with the workpiece and the spindle remains in the same direction
5. How to choose a reliable CNC machining service provider?
Choosing a reliable CNC machining manufacturer is crucial to get high-quality parts as desired.
There are several things you need to take into consideration when searching for the best CNC machining service provider:
1. Reputation
A good reputation means the CNC machining company is striving for customer satisfaction with quality products and after-sales service.
Always check out the comments from its previous customers to decide whether to work with the CNC machining service provider.
2. Product Quality
The quality of CNC machining parts is the top consideration for your purchase.
A reliable CNC machining manufacturer should listen to customers’ voices and produce the parts strictly according to the client’s requirements.
At Yijin Solution, you can even configure the models and the guide rails to meet your specific accuracy requirements.
3. After-Sales Service
Good after-sales service doesn’t mean the products are problematic. It shows that the CNC machining manufacturer is reliable, so you can always find support if anything goes wrong.
Yijin Solution has a very efficient and professional after-sales team that handles your issues in a timely manner.
Besides that, a follow-up is carried out after purchase and service to make sure you are satisfied with the CNC machining parts.
4. Qualitifications & Certifications
There are a lot of CNC machining manufacturers on the Internet and the information can be dazzling.
Be sure to check out their qualifications and certifications (preferably revealed by third parties) before you place the order.
If you are shopping online, pay attention to the store’s rate, customer reviews, and the age of the store, which greatly reflects whether the CNC machining supplier can be trusted or not.
Choosing a satisfying CNC machining service provider requires extensive research and comparison.
If it’s possible, you can make a field trip to select the best company for your project.
We offer fast and cost-effective CNC machining solutions.
Get high-quality parts for your CNC machining projects with fast turnaround times, following your design specifications.
CNC Resources
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