Precision 4 Axis CNC Machining Services
GreatLight is a professional & experienced precision CNC machining factory in China, Providing precision 4-axis CNC machining & Lathe services with tolerance of 0.001mm
- Custom manufacturing of metal parts from prototyping to production
- Prototype design and mass production within 3-5 days
- 4 Axis CNC machining and forming of precision metal parts
- GreatLight CNC Machining ISO 9001 Certified Factory
- ±0.001mm and above precision requirements can be processed
Start A New CNC Quote
Free for first product valued at less than $200. (Background check required)
All uploads are secure and confidential (view NDA).
Welcome to GreatLight Metal，Maximum Processing Size 4,000 mm
Precision Machining CNC Quote Online
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Submit your design files (STEP/IGES/DWG) and receive a competitive quote within 1 hour, backed by ISO 9001-certified quality assurance.
📋 How It Works
- Upload & SpecifyShare your 3D model and select materials (Aluminum/Stainless Steel/Titanium/PEEK), tolerances (±0.002mm), and surface treatments.
- AI-Powered AnalysisOur system calculates optimal machining strategy and cost based on 10+ years of automotive/aerospace data.
- Review & ConfirmGet a detailed breakdown including:
- Volume pricing tiers (1-10,000+ units)
- Lead time (3-7 days standard)
- DFM feedback for cost optimization
Unit Price:
Free for first product valued at less than $200. (Background check required)
Rapid With a Delivery Time of 3 Days
Precision CNC Machining
4 Axis CNC Machining
High efficiency, heavy cutting capability, simple operation, high precision and good surface effect.
3 Axis CNC Machining
The high-precision, high-efficiency and high-flexibility processing capabilities can meet the processing requirements of complex shapes and precision.
5 Axis CNC Machining
For complex geometric machining parts, our 5-axis CNC machining service provides unparalleled flexibility and speed.
CNC Milling & Turning
CNC Milling & Turning services that support rapid prototyping design and production needs, High precision, good surface finish and high efficiency.
What is Rapid Prototyping CNC Machining?
CNC prototyping, CNC prototyping refers to the use of CNC machining (computer numerical control machining) to manufacture high-quality prototype parts. During the machining process, the program is written through the CNC machining language, and the tool on the CNC machine moves on the material according to the path set by the program, removing excess material to obtain the approximate shape of the prototype.
1. No minimum order quantity requirement
There is no limit on the order quantity and product value.
2. A wide range of materials to choose from
There are many types of materials for CNC processing. The main metal materials are: aluminum alloy, stainless steel, brass, various steels, titanium alloys, etc., which can meet the performance requirements of different materials.
3. High precision and stable quality
One of the most important advantages of CNC prototypes is that its CNC processing accuracy is higher than other processing, and the maximum tolerance can reach ±0.001mm / 0.001 In, and multi-faceted structural products can be formed in one go.
4. High fidelity and super high surface finish.
CNC prototypes have high fidelity and high surface treatment level. After subsequent processing such as grinding, polishing, sandblasting, painting, silk screen, UV, electroplating, etc., the product effect is completely comparable to the products produced by the mold.
Precision CNC Machining Services Why choose GreatLight?
Try out our precision CNC machining services and become our next satisfied customer.
GreatLight - Leader in CNC Machining
One of the Best Rapid Prototyping Companies from China, GreatLight CNC Machining Center is an ISO 9001:2015 certified manufacturer and is an excellent choice for custom metal and plastic parts. Whether you need a complex part made from a 3D design or a finished product for a high-level conference presentation, we can quickly produce prototypes and parts in a matter of days using 3-, 4- and 5-axis CNC machining.
8 Reasons To Choose GreatLight
1. Advanced CNC machine tools:
We have world-class advanced CNC machine tools with high precision and high efficiency, ensuring that our machines and technologies can meet your specific requirements.
2. Accuracy and Tolerance:
The processing accuracy is plus or minus 0.001mm, the surface roughness is Ra0.2μm, and the product qualification rate is 99.99%. It is confirmed that the required accuracy of your parts can be achieved.
3. Software Technology:
We have advanced software technology that matches CNC machine tools to achieve precise design and processing of complex parts.
4. Technical team:
Our technical team has rich experience and expertise, has an impressive track record in the industry, and can handle a variety of complex processing tasks and provide technical support and solutions.
5. Design for Manufacturing (DFM) Support:
Can provide customers with reasonable feedback to improve design for manufacturability.
- Optimizing geometry for 5-axis motion
- Material selection
- Tolerance Considerations
- Support process strength
- Positioning and settings
- Functional accessibility
- Fixture and clamping design
CNC Machining Materials
CNC Metals
Aluminum is lightweight yet strong, with excellent machinability and corrosion resistance. Ideal for aerospace and automotive parts.
Alloys
Aluminum 6061, 6061-T6
Aluminum 2024
Aluminum 5052
Aluminum 5083
Aluminum 6063
Aluminum 6082
Aluminum 7075, 7075-T6
Aluminum ADC12 (A380)
Copper is known for its superior electrical conductivity and thermal properties, making it perfect for electrical components and heat exchangers.
Alloys
Copper C101(T2)
Copper C103(T1)
Copper C103(TU2)
Copper C110(TU0)
Beryllium Copper
Brass is durable and has a low friction coefficient, which makes it suitable for fittings, tools, and musical instruments that require precision.
Alloys
Brass C27400
Brass C28000
Brass C36000
Bronze is highly resistant to corrosion and metal fatigue, favored for bearings, bushings, and marine hardware.
Alloys
Tin Bronze
Steel is an alloy with high tensile strength and durability, commonly used in construction and automotive industries for its robustness.
Alloys
Steel 1018, 1020, 1025, 1045, 1215, 4130, 4140, 4340, 5140, A36
Die steel
Alloy steel
Chisel tool steel
Spring steel
High speed steel
Cold rolled steel
Bearing steel
SPCC
Stainless steel is renowned for its corrosion resistance, making it a prime choice for medical devices and food processing equipment.
Alloys
Stainless Steel SUS201
Stainless Steel SUS303
Stainless Steel SUS 304
Stainless Steel SUS316
Stainless Steel SUS316L
Stainless Steel SUS420
Stainless Steel SUS430
Stainless Steel SUS431
Stainless Steel SUS440C
Stainless Steel SUS630/17-4PH
Stainless Steel AISI 304
Magnesium is the lightest structural metal, offering high strength-to-weight ratios, perfect for automotive and aerospace applications where weight is critical.
Alloys
Magnesium Alloy AZ31B
Magnesium Alloy AZ91D
Titanium boasts the highest strength-to-density ratio among metals, highly resistant to corrosion and fatigue, ideal for aerospace, medical, and marine applications.
Alloys
Titanium Alloy TA1
Titanium Alloy TA2
Titanium Alloy TC4/Ti-6Al 4V
CNC Plastics
ABS is strong, durable, and offers good resistance to heat and impact. It’s preferred for automotive components and consumer goods.
ABS Beige(Natural)
ABS Black
ABS Black Antistatic
ABS Milky White
ABS+PC Black
ABS+PC White
Polycarbonate is extremely durable and has high impact resistance, along with excellent clarity, used for bullet-proof glass and protective gear.
PC Black
PC Transparent
PC White
PC Yellowish White
PC+GF30 Black
PMMA, or acrylic, is known for its crystal clarity and weather resistance, making it ideal for outdoor fixtures and display cases.
PMMA Black
PMMA Transparent
PMMA White
POM is strong, with a low friction surface and good dimensional stability, perfect for precision parts in mechanical applications.
Dark brown (coffee) POM 100AF
POM Black
POM Blue
POM White
Nylon is versatile, strong, and wears well against friction, commonly used for gears, bearings, and other wear-resistant surfaces.
PA(Nylon) Blue
PA6 (Nylon)+GF15 Black
PA6 (Nylon)+GF30 Black
PA66 (Nylon) Beige(Natural)
PA66 (Nylon) Black
Polyethylene is lightweight and has high resistance to impact, widely used in packaging and containers.
PE Black
PE White
PEEK is renowned for its high temperature resistance and strength, often used in aerospace and medical implant manufacturing.
PEEK Beige(Natural)
PEEK Black
Polypropylene is tough, has excellent chemical resistance, and is used for automotive parts, containers, and in packaging.
PP Black
PP White
PP+GF30 Black
HDPE is known for its high strength-to-density ratio, resistance to impacts, and is used in making bottles and corrosion-resistant piping.
HDPE Black
HDPE White
HIPS is easy to machine and offers good dimensional stability and impact resistance, suitable for prototyping and modeling.
HIPS Board White
LDPE is soft, flexible, and used in applications where heat sealing is required, such as in tubing and plastic bags.
LDPE White
1.ISO 9001 certified quality management system:
GreatLight has established a complete quality management system, including raw material inspection, processing monitoring, finished product inspection, etc. Our QA team guarantees high quality – each order has a standardized inspection report.
2.Strong quality assurance system:
CNC machining centers conduct five types of inspections at different stages of a manufacturing project, including raw material inspection, machine operator inspection, process inspection, and quality control (QC) department inspection. 100% inspection before shipment ensures that problems can be discovered and resolved in a timely manner to ensure product quality.
1. Production capacity:
Sufficient equipment can fully meet your production volume requirements and delivery schedule.
2. Delivery cycle:
You can specify the delivery time when you make an inquiry to ensure that it meets your schedule. At the same time, we can ensure that the probability of delayed delivery is less than 2%.
1. Extremely transparent charging standards:
We apply a uniform fee and price structure and ensure transparency. All design-based production costs are included in our quotes.
2. Pricing and cost advantages:
The best CNC processing factory from Dongguan, a famous manufacturing city in China, has both the scale effect of the number of equipment and the low-cost effect of self-built factories.
1. High reputation in the industry:
We have a good reputation and evaluation in the industry, and have a high profile and status in the industry. Choosing to cooperate with us can reduce the risk of cooperation.
2. Worry-free after-sales guarantee:
For products with quality defects, we provide unconditional return and exchange service to reduce the financial burden of customers.
1.ISO 9001 Certification:
Giant Light Technology has obtained ISO 9001 quality management system certification, which means that Giant Light Technology meets international standards in quality management and can provide high-quality processing services.
2. 5 utility model patents:
It demonstrates the significant advantages of Juguang Technology in technological innovation and product research and development, and provides strong technical support for market competition.
3. National high-tech enterprises:
As a national high-tech enterprise, Juguang Technology has significant industry competitive advantages and broad development prospects by virtue of its core technology and continuous innovation capabilities.
CNC Machining Surface Finishes
Whether you require anodizing, plating, or painting, we ensure your parts meet both aesthetic and functional specifications.
CNC Technology & Capacity
- Five-Axis CNC
- Four-Axis CNC
- Three-Axis CNC
- Milling & Turning
CNC Technology | 
5-Axis Five-Axis CNC | 
4-Axis Four-Axis CNC | 
3-Axis Three-Axis CNC | 
CNC Milling Milling & Turning |
Machining Materials Including But Not Limited To： | Aluminium, Brass, Inconel, Tool Steel, Tool Stee, Titanium, Alloy Steel, Stainless steel, Copper, Low Carbon Steel | Aluminium, Brass, Inconel, Tool Steel, Tool Stee, Titanium, Alloy Steel, Stainless steel, Copper, Low Carbon Steel | Aluminium, Brass, Inconel, Tool Steel, Tool Stee, Titanium, Alloy Steel, Stainless steel, Copper, Low Carbon Steel | Aluminium, Brass, Inconel, Tool Steel, Tool Stee, Titanium, Alloy Steel, Stainless steel, Copper, Low Carbon Steel |
Material Abbreviation | AL / SS / Brass / Steel / TC4 | AL / SS / Brass / Steel / TC4 | AL / SS / Brass / Steel / TC4 | AL / SS / Brass / Steel / TC4 |
Specification | Various sizes and thicknesses of plates and round bars | Various sizes and thicknesses of plates and round bars | Various sizes and thicknesses of plates and round bars | Various sizes and thicknesses of plates and round bars |
Common Post-processing | Oil spraying, powder spraying, passivation, oxidation, blackening, electrophoresis, silk screen printing, laser engraving, polishing | Oil spraying, powder spraying, passivation, oxidation, blackening, electrophoresis, silk screen printing, laser engraving, polishing | Oil spraying, powder spraying, passivation, oxidation, blackening, electrophoresis, silk screen printing, laser engraving, polishing | Oil spraying, powder spraying, passivation, oxidation, blackening, electrophoresis, silk screen printing, laser engraving, polishing |
Tolerance Range | ±0.001mm / 0.001 In and above precision requirements can be processed | ±0.001mm / 0.001 In and above precision requirements can be processed | ±0.001mm / 0.001 In and above precision requirements can be processed | ±0.001mm / 0.001 In and above precision requirements can be processed |
Advantage | Multi-faceted structural products can be formed in one go with high precision | High efficiency, re-cutting capability, simple operation, high precision, and good surface effect | High efficiency, re-cutting capability, simple operation, high precision, and good surface effect | High precision, good surface finish, and high efficiency |
Shortcoming | The size of the processed products is limited, the processing speed is slow, and the cutting is light | |||
Main Fields | Prototype, automobile, medical, digital electronics, toys, mechanical equipment, aerospace, etc. | Prototype, automobile, medical, digital electronics, toys, mechanical equipment, aerospace, etc. | Prototype, automobile, medical, digital electronics, toys, mechanical equipment, aerospace, etc. | Prototype, automobile, medical, digital electronics, toys, mechanical equipment, aerospace, etc. |
Maximum Processing Size Of The Equipment | 4000*400*150mm 750x1150x550mm 600*600*600mm 500*500*450mm 500*310*200mm 1575*157*60In 295x452x216In 236*236*236In 200*200*177In 200*122*78.7In | 1500*800*300mm 800*500*400mm 600*400*300mm 590*315*118In 315*200*157In 236*157*118In | 1500*800*300mm 800*500*400mm 600*400*300mm 590*315*118In 315*200*157In 236*157*118In | Diameter 500mm / 200 In |
Processing Capabilities | 16 Units | 12 Units | 27 Units | 16 Units |
Standard Lead Time | 3 Business Days | 3 Business Days | 3 Business Days | 3 Business Days |
| Starting Price: $11/H | Starting Price: $11/H | Starting Price: $9/H | Starting Price: $9/H |
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CNC Machining Parts
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How Great Light Works
We've boiled down the innovation process to just three simple, effective steps.
Get Instant Quote
Simply upload your design to our email, and within 12 hours, get an instant quote and a free design analysis for your prototypes and production parts. Easy-peasy!
Start Production
Once you have approved the quote and design, we will start production on your CNC prototype or CNC machined parts products.
Receive Your Custom Parts
CNC machined parts or products will be produced within a few days. We ship to you by international express. Please feel free to give us feedback to ensure that they meet your expectations.
CNC Machining FAQs
CNC Machining, or Computer Numerical Control Machining, is a manufacturing technique where computer-controlled devices are used to remove layers from a material, creating detailed parts or components. Through a combination of tooling and precise machine movement, it produces parts to exact specifications.
Our own internal processing capabilities: Five-Axis CNC 16 Units, Four-Axis CNC 12 Units, Three-Axis CNC 27 Units, CNC Milling & Turning 16 Units. If you have larger processing needs, we can also meet them.
CNC Machining offers unparalleled precision and repeatability, making it a top choice for industries requiring intricate parts. Its ability to handle a variety of materials, from metals to plastics, combined with fast production times and consistent quality, makes it an essential method in modern manufacturing.
The CNC machining process begins by designing a part in CAD software. This design is then converted into a set of machine commands using CAM software. The CNC machine reads these commands to precisely cut and shape the material, producing a finished part that matches the digital design.
3D printing is an additive manufacturing method, building parts by depositing material layer by layer. In contrast, CNC machining is a subtractive method, starting with a solid block of material and removing sections until the desired part is achieved. While 3D printing is often favored for complex geometries and rapid prototyping, CNC machining excels in durability, precision, and material versatility.
Our engineering and sales teams will provide one-on-one quote support for your project. Typically, for similar parts, CNC lathes cost 15% less to machine than standard 3-axis CNC milling. In contrast, the cost of 5-axis machining increases, continuous 5-axis CNC milling typically costs over 20% higher than an indexed 5-axis machine (also referred to as 3+2 milling), and about double that of a standard 3-axis mill. To achieve the most cost-effective CNC machined parts, larger production runs are recommended to spread the cost of machine setup.
Maximum Dimensions (3-axis milling): 1500*800*300mm, 1270×508×635 (mm).
Maximum Dimensions (5-axis milling): 4000*400*150mm, 750x1150x550mm,
600*600*600mm, 500*500*450mm, 500*310*200mm,
Worktable Diameter Φ400 mm. All can be processed, and larger sizes can also be consulted by engineers
Once the machining process is complete, the CNC parts surface will have slight visible tool marks, called “as-machined” or “as-milled” surface finish. Machined surface roughness (Ra) is standardized at 1.6-3.2 μm, and surface finish requirements can be increased to 0.8-1.6 μm or higher at 0.2-0.8 μm, however, this will require more operating time and higher costs.
Get The Best Price
- Manual Response Within 12 Hours
- Production Can Be Started Within 24 Hours
- Production Can Be Completed In As Tast As 3 Days
- Air Freight Delivery To Your Home Within 3 Days
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