Precision Metal and Plastic Structural Component Machining
Customized CNC Machining Services Tailored To Your Needs Based In China
Are you looking for a reliable CNC machining service provider in China to support your products from concept to production?
SzCrealink offers professional, cost-effective CNC machining solutions to global customers who demand precision, consistency, and on-time delivery.
- With over 19 years of experience, we provide reliable machining you can count on.
- Backed by an ISO 9001-certified system, our team ensures consistent, stable quality.
- Powered by over 50 state-of-the-art machines, we deliver efficient and reliable production.
- Trusted by customers worldwide, with a 99% customer satisfaction rate.
*Send your drawings today and receive a fast, clear quote.
Why Choose SzCrealink as Your CNC Machining Services Partner?
Choosing the right CNC machining partner directly affects product quality, cost, and delivery reliability. At SzCrealink, we focus on long-term partnerships built on trust, transparency, and performance. What sets us apart:
One-Stop CNC Machining
From prototype to mass production, we manage machining, finishing, and delivery under one roof.
Certified Quality Systems
ISO 9001, ISO 13485, IATF 16949, and ISO 14001 ensure consistent and controlled production.
Trusted by Global Customers
99% customer satisfaction with long-term international partners across multiple industries.
Engineering-Driven Support
Dedicated engineers provide DFM feedback to optimize cost, quality, and manufacturability.
Stable & Consistent Quality
Controlled processes and strict inspections ensure reliable quality and repeatable results for every order.
Clear Lead Times
Predictable schedules and timely updates keep your project moving smoothly at every stage.








Our Machining Equipments & Capabilities
Strong machining capability is the foundation of consistent CNC production. Our Shenzhen manufacturing facility operates as a modern, well-equipped machine shop capable of handling both complex parts and high-volume orders. Our equipment and capacity include:

3-Axis, 4-Axis, And 5-Axis CNC Machining Centers

Large CNC Milling Machines for Oversized Parts
Our large CNC milling machines are designed to machine oversized and heavy components while maintaining dimensional accuracy and stability.
Benefits to you:
Support large and long parts in a single setup
Stable machining for heavy or thick components
Reduced rework caused by part repositioning
Ideal for structural, industrial, and equipment parts

CNC Lathes, Grinding & EDM Wire Cutting
We combine CNC lathes, precision grinding machines, and EDM wire cutting to support turning, fine finishing, and complex internal features.
Benefits to you:
High precision for round and rotational parts
Excellent surface finish and dimensional control
Ability to machine hard materials and intricate features
Reliable support for precision and tooling components

Automated CNC Machining for High-Volume Production
Automated CNC setups are used to support stable, repeatable machining for medium-to-high volume CNC production.
Benefits to you:
Consistent quality across large batches
Reduced labor variation and human error
Predictable lead times for production orders
Cost-effective solutions for high-volume CNC machining
Capabilities:
3-axis, 4-axis, and high-precision 5-axis CNC milling
Aluminum, steel, titanium, and engineering plastics
Suitable for prototypes, low‑volume, and production runs
With advanced CNC metal milling equipment and experienced machinists, we deliver excellent dimensional accuracy and surface finish for a wide range of applications.

Typical CNC turning parts include:
Shafts and pins
Housings and bushings
Threaded components
Precision lathe CNC parts in aluminum and steel
CNC turning is highly efficient for batch production, making it a cost‑effective solution for consistent, high‑quality lathe machining parts.

5-Axis & Complex CNC Machining
Benefits of 5‑axis and complex CNC machining:
Machining multiple faces in a single setup
Higher accuracy and tighter tolerances
Reduced lead time and fewer alignment errors
This capability is ideal for aerospace components, medical devices, precision housings, and other applications requiring complex CNC machining.

Metal Machining & Fabrication Services
Our metal services include:
CNC machining for aluminum, steel, stainless steel, titanium, and copper
Manufacturing of metal parts to drawing specifications
CNC metal fabrication and bending
Custom metal brackets and formed components
By integrating machining with fabrication, we provide complete metal solutions with consistent quality and reduced sourcing complexity.

Capabilities include:
Precision laser cutting service for metal parts
Aluminum laser cutting and stainless steel laser cutting
CNC sheet metal cutting, bending, and forming
These services are ideal for enclosures, panels, frames, and custom sheet metal components.

From Manufacturing Capabilities to CNC Machining Solutions
Our CNC machining solutions are built around the requirements of your parts – not simply the machines we operate. Based on your drawings, materials, tolerances, part geometry, quantities and application requirements, we determine the most suitable machining process, tooling and production method.
From precision components and custom parts to prototypes, small batches and production runs, we provide a complete CNC machining solution from drawing review and process planning to machining, inspection and delivery.
Precision CNC Machining
We support:
Typical machining tolerances of ±0.01 mm
Tighter tolerances for selected critical features
Precision CNC milling and turning
Complex and close-tolerance components
Dimensional inspection and quality verification
Our engineers review critical dimensions and manufacturing requirements before production to select suitable machining processes and inspection methods. This helps ensure that precision parts meet drawing specifications consistently from batch to batch.
Custom CNC Machining
We support:
Custom CNC machining based on 2D and 3D drawings
CNC milled, turned and multi-axis components
Complex geometries and customized features
DFM feedback for improved manufacturability
Material and machining process recommendations
Before production, we evaluate the part structure, tolerances, tooling requirements and machining sequence. Where appropriate, we provide practical DFM suggestions to improve manufacturability, reduce unnecessary machining costs and achieve a more reliable production process.
We manufacture:
CNC machined metal prototypes
CNC machined plastic prototypes
Functional prototypes for fit and performance testing
Prototype parts for design verification and product development
Using production-grade CNC machining processes allows prototype parts to closely represent the materials, dimensions and functional characteristics of the final product. This helps engineers identify design issues early and move from prototype to production with greater confidence.
High‑Volume & Production CNC Machining
For projects requiring repeat production, our CNC machining solution combines process stability, quality control and production capacity to support ongoing manufacturing programs.
We provide:
Repeat production from small orders to high-volume requirements
CNC milling, turning and multi-axis machining
Consistent machining processes across production batches
In-process and final inspection
Production scheduling and capacity planning
Once the machining process is established, we focus on maintaining consistent quality, dimensions and delivery performance throughout the production cycle. This makes our CNC machining services suitable for customers who need a reliable manufacturing partner for recurring orders.
Small-Batch Production
For product development, market testing and low-volume applications, our small-batch production solution provides a practical alternative to committing to large production quantities.
We support small-batch CNC machining for metal and plastic components, with flexible quantities based on your project requirements. Our team can recommend suitable materials, machining processes, tooling and production methods to balance part quality, cost and lead time.
Small-batch CNC production is suitable for:
New product launches and market testing
Engineering validation and design iterations
Replacement and spare parts
Low-volume commercial products
Projects that require flexible production quantities
By starting with smaller production volumes, you can validate the product and manufacturing process before increasing production. This helps reduce upfront investment while keeping the transition to larger-scale manufacturing flexible.
Our CNC Machining Process: From Drawing Review to Delivery
Every CNC machining project follows a controlled process—from engineering review and production planning to machining, inspection, and shipping. This structured workflow helps us maintain consistent quality, predictable lead times, and reliable delivery.
1. Drawing Review & Quotation
We review your 2D drawings, 3D CAD files, materials, tolerances, surface finishes, and quantities before quoting. Our engineers check manufacturability and identify potential issues early.
What you get: Clear pricing, technical feedback, and a defined production plan.
2. Production Planning
Once the order is confirmed, we arrange materials, production capacity, machining schedules, and required processes based on your project requirements.
What you get: A clear production schedule and better control of lead times.
3. CNC Programming & Setup
Our engineers create machining programs and prepare the appropriate tools, fixtures, and machine setups according to your part geometry and tolerances.
What you get: Stable machining performance, fewer setup errors, and efficient material utilization.
4. CNC Machining & In-Process Control
Parts are machined using 3-axis, 4-axis, or 5-axis CNC equipment, depending on the complexity of the project. Critical dimensions are checked during production to identify deviations before they affect the entire batch.
What you get: Consistent dimensions and better batch-to-batch repeatability.
5. Full Quality Inspection
We inspect critical dimensions, tolerances, surface finish, and material requirements according to the order specifications. CMM and other precision measuring equipment are available for demanding parts.
What you get: Inspection data and confidence that your parts meet the specified requirements.
6. Final Quality Confirmation
Before packaging, finished parts undergo a final inspection to verify quantity, appearance, dimensions, and order requirements.
What you get: A final quality check before your parts leave our facility.
7. Protective Packaging
Parts are packed according to their material, size, surface finish, and fragility. Protective materials are used to reduce the risk of scratches, deformation, or damage during transportation.
What you get: Parts protected from the factory to your receiving location.
8. Shipping & Tracking
We coordinate shipping with your preferred logistics provider or arrange international delivery with tracking information. Shipment status is monitored through delivery.
What you get: Clear shipment visibility from dispatch to delivery.
CNC Machining Quality Control & Inspection
Quality control starts before machining and continues through final inspection. At SzCrealink, we manufacture parts according to your drawings, specifications, tolerances, and agreed quality requirements. Critical requirements are checked at key stages of production using appropriate measurement equipment to help ensure consistent results from the first part to the last.

1. Drawing Requirements & Quality Standards

2. Inspection Throughout Production

3. Measurement & Inspection Equipment
Different part features require different inspection methods. Our quality team selects measurement equipment according to the geometry, tolerance requirements, and inspection criteria of each project.
| Inspection Area | Equipment & Tools |
|---|---|
| Dimensional Inspection | Calipers, Micrometers, Height Gauges |
| Hole & Thread Inspection | Plug Gauges, Ring Gauges, Thread Gauges |
| Precision Measurement | CMM, Optical Projectors, Image Measuring Systems |
| Form & Geometry | Roundness and Cylindricity Gauges |
| Surface Inspection | Surface Roughness Testers |
This combination of standard measuring tools and precision inspection equipment allows us to verify both general dimensions and critical features on CNC machined parts.

4. Inspection Documentation
Wide Range Materials of CNC Machining Services
We offer many metal and plastic materials to meet different design and performance needs.
Metal Materials
List of metal materials:
| Processing metal materials | Common types |
|---|---|
| Aluminum | AL6061-T6,AL5052,AL6082,AL7075-T6,AL2024-T3,AL7050,AL5083,AL5251 |
| Stainless Steel | AISI 301,AISI 303,AISI 304,AISI 304L,AISI 316L,AISI 440C,AISI 420,AISI 2205 |
| Carbon Steel | ASTM A36,AISI 1045 |
| Alloy steel | Alloy steel |
| Tool steel | O series,D series |
| Brass | Brass ASTM C260, C360 / Brass GB H59, H62, H65, H68, H70 |
| Copper | Copper alloy |
| Titanium | Titanium grade F1-F5 |
| Zinc | Zinc alloy |
Plastic Materials
List of plastic materials:
| Quantity | Precision | Delivery time | Material |
|---|---|---|---|
| MOQ:1PCS | Standard Tolerance: ISO 2768 - Plastic Parts | 1-15 days (depending on quantity and requirements) |
ABS - (Natural/Black/Flame Retardant) PVC - (Black/White) PC/Polycarbonate - (Transparent/Black) PMMA/Acrylic - (Transparent/Black) PA/Nylon - (Natural/Black/30%GF) HDPE - (Black/White) PP/Polypropylene - (Natural/Black/20%GF) POM (Delrin) PVC - (Black/White) PEEK - (Natural/Beige/White) PPS HDPE PU |
Optical Materials
Optical materials & transparent components:
* Material selection support is available to optimize performance, cost, and machinability.
Post-Processing in CNC Machining Services
We provide a full range of post-processing options to improve the appearance, accuracy, and performance of your CNC machined parts, with solutions tailored to your specific requirements.
| Project | Description | Materials | Remarks | Pictures |
|---|---|---|---|---|
| Manual processing | Removal of burrs and sharp edges from CNC machined products | Metal and plastic | Ra3.2-1.6μm |
|
| Grinding | Parts are manually ground or machine ground and polished | Metal and plastic | Ra1.6-0.8μm |
|
| Polishing | Polishing is a process that gives parts a professional-grade gloss | Metal and plastic | Ra0.8-0.4μm |
|
| Manual polishing | Helps bring out the best clarity and light transmission. Clear parts | PMMA or PC | PC is second only to PMMA in terms of transparency, but it is very strong and more powerful than PMMA |
|
| Spraying | We offer different screen printing spraying colors, UV gloss, etc | Metal and plastic | We use the Pantone matching system and Ral Classic system |
|
| Surface texture | We can create different textures, such as mold technology, VDI, SPI, etc | Plastic | Professional and critical link |
|
| Sandblasting Brushing | The surface is sandblasted with different grades of sand | All metals | Glass bead blasting, in different sizes, from #80 to #220 |
|
| Anodizing | It helps resist corrosion, increases surface hardness, and improves wear resistance | Aluminum alloy | Clear, black, red, and blue anodizing are available |
|
| Metalization | It protects parts from corrosion and oxidation | Al, steel, copper, etc | Tin, nickel, zinc (galvanized), and chrome are available |
|
| Vacuum Plating | It has strong adhesion, and the coating is unlikely to peel off, typically used for lighting reflectors | ABS, PC, ABS + PC, PC + GF, PET, PA, Al, and zinc parts | High-end, environmentally friendly, and highly decorative |
|
| Screen printing Laser engraving | Precise and permanent marks | Metal and plastic | Used for serial numbers, model numbers, logos, etc. |
|
| Electroplating coating | It adds a thin layer of protective polymer | Metal and plastic | Typical thickness varies from approximately 50μm to 150μm |
|
| Heat treatment | Makes parts harder and stronger, improving their mechanical properties | Steel | Quenching, tempering, nitriding process; hardness reaches 40–70 HRC |
|
Inside Our CNC Machining Facility

Our Shenzhen facility is equipped with 50+ CNC machines, including 3-axis, 4-axis and 5-axis machining centers, CNC turning machines, EDM, drilling, tapping and surface grinding equipment.
We manufacture custom metal and plastic parts for prototypes, small-batch production and repeat orders. Our engineers review drawings, materials, tolerances and production requirements before machining, while inspection is carried out throughout the production process.
Our ISO 9001-certified quality system covers material inspection, in-process control and final inspection. CMM and other inspection equipment are used to verify critical dimensions and finished parts.
See Our Machines and Production in Action

Take a look inside our workshop through real footage of CNC machining, production and inspection. The videos show our equipment, engineers and day-to-day manufacturing processes as they are carried out in our facility.
CNC Machining in Operation
See our 3-axis, 4-axis and 5-axis machines producing precision components.
Production & Inspection
Follow the process from machining and setup to dimensional inspection and final checks.
Our Team at Work
See our engineers and production staff managing machining, inspection and daily operations.
Precision Manufacturing Case Studies: Expertise in Machining Both Metal and Plastic
Take a look at our high-precision machining achievements across various industries. From custom-made non-standard parts to mass production, these real-world project case studies showcase our technical depth and flexibility in handling complex geometries and special materials.

Laser Baffle Reinforcement Plate Part

High-Performance Alloy Component

Hexagon Socket Bright Surface Parts

AL6061 Reinforcement Plate

Cavity 6061 Aluminum Alloy Parts

White POM Parts

Round Aluminum Tapping Parts

Aluminum Alloy Shaped Parts
From Raw Material to Shipment - How Our CNC Machining Factory Gets It Done
At our CNC machining factory, every project follows a clear, step-by-step process to ensure quality and consistency from start to finish.
It all starts with your quote request. Once the order is confirmed, we source raw materials and run them through strict Incoming Quality Control (IQC) before storage. Then, machining begins – with a First Article Inspection (FAI) to confirm everything is on track.
Next comes mass production, supported by ongoing In-Process Quality Checks (IPQC). For complex parts, we repeat the inspection and machining cycle to ensure accuracy at every stage. Once finished, the parts are stored, carefully packed, and shipped to your door.
Every step is controlled, documented, and handled with care – so you get reliable results, every time.

Material Matters. And We Prove It.
Q: What happens if the material quality isn’t guaranteed in CNC machining? How do you handle this?


Worried About Part Quality?
Q: What if the parts I receive don’t meet the quality I expected?
Clear. Fair. Explained. How We Handle CNC Pricing
Q: CNC machining prices are often unclear. How do you make it more transparent?


Trust Through Security: How We Handle Your CNC Files
Q: Is data and protection a concern in CNC machining? How do you handle it?
What Our Customers Say ?
Trusted by companies across industries, our CNC machining services have earned praise for quality, reliability, and responsive support. Here’s what some of our long-term partners have to say about working with us.
Amazing work from these guys! My contact Eason has been particularly outstanding regarding communication and service, l definitely recommend them. The received products were also very well-made and beautiful.
Excellent serviee. I have used this supplier several times and am impressed everytime l receive my ordes, Top quality service and support. You won’t go wrong with them.
Great CNC machining,impressive laser engraving best. l’ve ever seen so far good quality overall and all the pieces were packed carefully.
The seller was very quick to respond and was quick to fix and make things right. l would recommend working with him again! Thanks!
Frequently Asked Questions of CNC Machining Services
Wondering if our CNC machining services are the right fit for your project? Below are answers to the most common questions about custom parts, materials, tolerances, lead times, and production support. Still need clarification? Contact our engineers for project-specific guidance.
We are a manufacturer, which means we produce goods ourselves rather than just facilitating transactions between buyers and sellers as a trading company would do.
Certainly! To receive a quotation, kindly send us your 3D drawings via email in any of the following formats: PDF, STP, IGS, or STL. Additionally, please specify the material you prefer, the required surface treatment, and the quantities needed. Upon receiving this information, we will promptly provide you with a quotation within 24 hours.
Yes, absolutely. We understand the importance of testing and evaluation before committing to a larger order, so we are more than happy to accommodate small order quantities, including just one or two pieces, for your convenience.
Absolutely - we can create parts based on your sample, ensuring the final product matches the original in both form and function.
Our delivery time usually ranges from 7 to 15 days, depending on the order quantities and the specific production process involved.
Yes, we ensure a 100% testing process for all our products before they are delivered to our customers.
To cultivate enduring business ties and maintain a harmonious relationship with your company, we adopt the following strategies:
We prioritize maintaining high-quality standards and offer competitive pricing to guarantee our customers’ satisfaction and benefit.
We treat every client with the utmost respect, considering them as valued friends. We conduct business with sincerity and aim to establish friendships, regardless of their geographical origin.
Sure! Our process includes acquiring raw materials, precision CNC machining, quality inspection, and safe transportation to the customer.
Regarding product packaging, we ensure that each item is securely packed to prevent any damage during transit. As for transportation, we maintain close cooperation with major logistics companies such as DHL, FedEx, UPS, and EMS. We offer shipping options by sea and air to destinations worldwide, ensuring efficient and reliable delivery of our products to our customers.
You can send an inquiry about our products, and our sales team will promptly respond to you within 1 hour.
