CNC Machining Service
Our comprehensive CNC machining services encompass a diverse array of operations such as milling, turning, drilling, tapping, EDM, and wire EDM for a variety of materials. With our ISO 9001 certification, skilled expertise, and state-of-the-art CNC machines, we guarantee accurate and reliable manufacturing of your components on the initial attempt, without fail.
- CNC Fixture Development and Manufacturing
- CNC Machining Metal parts
- CNC Machining Plastic parts
- 3-5 Axis CNC Machining
- CNC Turning
Comprehensive metal and plastic CNC machining solutions
Our cutting-edge CNC machines accommodate over 100 materials, enabling fast production of specialized intricate machined parts or end-use products without sacrificing quality. We provide the best service for quick turnarounds of prototypes or production parts.
- No Minimum Order Quantity
- One-to-one collaboration and proactive DFM
- Manual metrology, laser and CMM inspection
- Reduce cycle time by up to 50%
Precision Part Manufacturing for Various Industries
Provide you with high quality
CNC machining services
More than 20 years of experience in CNC machined parts
40+ sets of cnc machining equipments
With various measure equipments
CNC Milling
- 3-axis, 4-axis, 5-axis CNC Milling
- CNC milling metal and plastic
- Tolerances of ±0.005mm
CNC Turning
- Facing, Taper Turning & Contour Turning
- Form Turning, Chamfering & Cutoff
- Threading, Boring, Drilling & Knurling
Precision Grinding
(+/-0.0001 in.)
- Centerless Grinding
- Cylindrical Grinding (OD & ID)
- Surface Grinding
Deep Hole Drilling
- For Machine components
- For Mold components
- For Electronic products
Comprehensive Metal And Plastic CNC Machining Solutions
Complex Parts Made Easy.
- No Minimum Order Quantity
- One-To-One Collaboration And Proactive DFM
- Manual Metrology, Laser And CMM Inspection
- Reduce Cycle Time By Up To 50%
Which CNC machining process should I choose?
Improve the efficiency of your CNC machining project by taking into account these important production considerations:
Process selection
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3-Axis Milling
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5-Axis Milling
|
Turning
|
|---|---|---|
|
Effective for simple geometric designs
|
Adds 2 axes of movement to the workpiece for expanded design potential
|
Ideal for parts with simple geometries, or rounded and cylindrical parts
|
|
Useful for creating a wide variety of parts
|
Offers faster production times
|
Offers excellent precision and consistency
|
|
Offers excellent precision and consistency
|
Offers excellent precision and consistency
|
|
General Process Information
|
|
3-Axis Milling
|
5-Axis Milling
|
Turning
|
|---|---|---|---|
|
Max. Part size
|
1800 x 1000 x 500 mm
70.9 x 39.4 x 19.7 in |
1000 x 900 x 600 mm
39.4 x 35.4 x 23.6 in |
Ø 350 x 600 mm
Ø 13.8 x 23.6 in |
|
Min. Part size
|
12.7 x 12.7 x 12.7 mm
0.5 x 0.5 x 0.5 in |
12.7 x 12.7 x 12.7 mm
0.5 x 0.5 x 0.5 in |
6.4 x 6.4 x 6.4 mm
0.25 x 0.25 x 0.25 in |
|
Min. Feature size
|
Ø 1 mm
Ø 0.039 in |
Ø 1 mm
Ø 0.039 in |
Ø 1 mm
Ø 0.039 in |
|
Standard tolerance
|
Metals +/-0.13 mm +/-0.005 in
Plastics +/- 0.20 mm +/- 0.008 in |
Metals +/-0.13 mm +/-0.005 in
Plastics +/- 0.20 mm +/- 0.008 in |
Metals +/-0.13 mm +/-0.005 in
Plastics +/- 0.20 mm +/- 0.008 in |
|
Lead time
|
As low as 8 days for
less than 50 parts |
As low as 10 days for
less than 50 parts |
As low as 8 days for
less than 50 parts |
CNC Milling from 3 to 5 axis
3-Axis CNC Milling
- 3-axis CNC milling makes complex shapes.
- Best for planar profiles, holes in-line.
- T-slot and Dovetail cutters allow undercuts.
4-Axis CNC Milling
- 4-axis machining is cost-effective compared to 3-axis.
- A-axis reduces fixtures and errors.
- Tighter tolerances, no accuracy loss.
5-Axis CNC Milling
- 5-axis machining handles complex shapes, reduces setups.
- Efficiently machine 5 sides in one setup.
- 5-axis used for aerospace and medical parts.
Materials for custom CNC machining parts
We provide material certification and ROHS report for each batch of raw materials
aluminum
Aluminum alloys have thermal properties and excellent machinability, making them the material of choice for most manufacturing sectors in a wide range of industries and easy to machine.
Aluminum cnc machining materials:
al 6061, al 2024, al 5052, al 6063, al 7050, al 7075, al MIC-6.
CNC machining precision:
Our CNC machined parts with tolerances as small as +/- .0.01
Surface Finish Colors:
Black, natural, blue, green and different colors according to your requirements with high quality finish.
CNC machining process:
CNC aluminum milling, CNC aluminum turning, CNC aluminum drilling etc.
Copper/Brass
Brass is an alloy made of copper and zinc, characterized by high wear resistance, low coefficient of friction, low melting point, good ductility and high corrosion resistance.
High quality copper:
Brass 360, Brass 308, Copper 101, Copper 110, Copper 11000, Bronze, and more.
CNC Lathe Machining Accuracy:
Our CNC turning centers produce precision turned parts with tolerances as small as +/- .0.01
Competitive Pricing:
Providing advanced CNC brass turning technology currently available to large companies at a profitable price that any user can obtain.
Quality Assurance:
Advanced CNC lathes, competent designers and engineers, and experienced production workers ensure superior quality.
stainless steels
The best and fastest way to machine steel parts is CNC machining, especially CNC milling, which is especially popular in the medical, automotive, aerospace, healthcare and consumer electronics sectors
CNC machining materials:
Stainless Steel, Carbide, Carbon Steel
Surface Finishing Capabilities:
Brushed, polished, anodized, oxidized, sandblasted, laser engraved, electroplated, shot peened, electrophoresed, chromate, powder coated and painted.
CNC machining process:
CNC milling, CNC turning, CNC Drilling, CNC Tapping,EDM,Wire cut
CNC machining tolerances:
± .0002 inches, ± .005 mm.
Titanium
Titanium is a lustrous transition metal with a silvery color, very strong but lightweight, and non-magnetic. It has beneficial properties and characteristics such as good ductility, high melting point and low thermal conductivity, and is resistant to corrosion by seawater, chlorine and many more media.
Titanium CNC machining materials:
Titanium Grade 5 (Ti 6Al-4V), Grade 2, Grade 7, Grade 23 (Ti 6Al-4V Eli), etc.
Surface Finishing Capabilities:
Brushed, polished, anodized, oxidized, sandblasted, laser engraved, electroplated, shot peened, electrophoresed, chromate, powder coated and painted.
CNC machining process:
Drilling, thread milling, broaching, tapping, spline, reaming, cutting/cutting, profiling, facing, turning, threading, internal molding, grooving, knurling, countersinking, boring, countersinking, hobbing.
CNC machining tolerances.
± .0002 inches, ± .005 millimeters
Plastic
We are able to manufacture high quality CNC machined plastic parts from over 30 different materials, creating high performance precision machining of engineering plastics using processes such as 5-axis CNC machining methods.
CNC machining material:
POM, PEEK, HDPE, PET, Nylon, PTFE, PVC, PP, ABS, PC, PMMA
Surface Finishing Capabilities:
Deburring, chrome plating, anodizing, fumigation, grinding, sandblasting, painting, silk-screening, electroplating, etc.
CNC processing customization:
Provide customers with the best design and production solution for CNC milling plastic parts according to drawings and parameters.
CNC machining tolerances.
± .0002 inches, ± .005 millimeters
Our surface finishing method
We offer a wide range of finishing services, including painting, texturing and polishing, and offer a wide selection of colors. In addition to superior quality, we are committed to the environment. We use environmentally friendly paints and coatings and recycle all waste materials.
Deburring
The standard finish for our parts, the “as machined” finish, has a surface roughness of 3.2 μm (126 μin), which removes sharp edges and deburs parts cleanly.
Materials
All materials
Color
n/a
Texture
Stain
Price
$
Bead Blasting
Bead blasting is the process of powerfully propelling, generally with high pressure, a stream of blast media against a surface to remove unwanted coating layers and surface impurities.
Materials
Aluminum, Steel, Stainless Steel, Brass, Copper
Color
n/a
Texture
Matte
Price
$
Anodizing
Anodizing is an electrolytic process that creates a protective layer of oxide on the surface of the die cast component. This improves its corrosion and wear resistance.
Materials
Aluminum
Color
Clear, black, grey, red, blue, gold
Texture
Smooth, matte finish
Price
$$
Electroplating
The process of electroplating deposits a thin layer of metal on the surface of a part. The most commonly used metals for electroplating are nickel, chromium, zinc and gold.
Materials
Aluminum, steel, stainless steel
Color
Gold, silver, nickel, copper, brass
Texture
Smooth, glossy finish
Price
$$$
Polishing
Ranging from Ra 0.8~Ra0.1, polishing processes use an abrasive material to rub the part’s surface to make the shine more less shiny, depending on your requirements.
Materials
All materials
Color
n/a
Texture
Smooth, glossy finish
Price
$$$$
Powder Coating
Using corona discharge, we make the powder coating adsorbed to the part, creating a more wear-resistant layer with a typical thickness ranging from 50 μm up to 150 μm.
Materials
All metal materials
Color
Custom
Texture
Glossy
Price
$$$
Brushing
Brushing can be used for aesthetic purposes, to improve the durability of the material, or to make the material more resistant to corrosion.
Materials
ABS, Aluminum, Brass, Stainless Steel, Steel
Color
n/a
Texture
Satin
Price
$$
Painting
Painting involves spraying a layer of paint onto the surface of the part. Colors can be matched to a Pantone color number of the customer’s choosing, while finishes range from matte to gloss to metallic.
Materials
Aluminum, Stainless Steel, Steel
Color
Custom
Texture
Gloss, semi-gloss, flat, metallic, textured
Price
$$$
Pad Printing
Pad printing is a process of transferring a 2D image onto a 3D object using a silicone pad. It is also a durable process that can withstand wear and tear.
Materials
All materials
Color
Custom
Texture
flat
Price
$$
Laser
Laser etching and engraving are two processes that use a laser to create permanent marks on a surface. Laser etching uses a laser to vaporize the surface of the material, while laser engraving uses a laser to remove material from the surface.
Materials
All materials
Color
Custom
Texture
flat
Price
$$$
Train with the best
Get worry-free CNC machining services for any project size. Contact us today.
CNC Machining Tolerances
Precision is our top priority. With our state-of-the-art CNC machines, you can trust that every cut and every piece will be accurate to the smallest detail.
Metal
The equipment and tools required for the compression molding are much simpler, which means less capital investment. The form of molding is suitable for mass and rapid production of products with simple design, product tolerance of ±0.05mm, and low budget.
How it Word
| Dimension | Tolerances |
| 0.5 – 6.00 mm | ± 0.05 mm |
| 6.00 – 30.00 mm | ± 0.10 mm |
| 30.00 – 120.00 mm | ± 0.15 mm |
| 120.00 – 400.00 mm | ± 0.20 mm |
| 400.00 – 1000.00 mm | ± 0.30 mm |
| Angular: ±0.5° | |
| Surface Roughness 3.2μm Ra | |
With drawing: Tolerance quality equivalent to IT7 can be achieved.
Without drawing: ISO 2768 fine
Plastic
The equipment and tools required for the compression molding are much simpler, which means less capital investment. The form of molding is suitable for mass and rapid production of products with simple design, product tolerance of ±0.05mm, and low budget.
How it Word
| Dimension | Tolerances |
| 0.5 – 6.00 mm | ± 0.10 mm |
| 6.00 – 30.00 mm | ± 0.20 mm |
| 30.00 – 120.00 mm | ± 0.30 mm |
| 120.00 – 400.00 mm | ± 0.50 mm |
| 400.00 – 1000.00 mm | ± 0.80 mm |
| Angular: ±0.5° | |
| Surface Roughness 3.2μm Ra | |
With drawing: Tolerance quality equivalent to IT11 can be achieved.
Without drawing: ISO 2768 medium
2000+ engineers choose GPMFG
20 years of experience in the industry, 25,800+ CNC machining parts delivery samples machining experience
20 years of industry experience, mature quotation system and technical support
- 20 years of CNC machining experience, 12 engineering masters with more than 15 years of experience
- Provide technical consultation, pre-review drawing files, structural analysis, risk assessment, constructive design suggestions, cost analysis and other services
- Mature quotation system, 5 sales engineers provide online quotations within 30 minutes – 2 hours.
- Processed 500 kinds of materials, spectrum analyzer to test the authenticity of materials
- 21 kinds of surface treatment process, 8 jigs and fixtures patents
High-precision production equipment, high-quality workers, delivery guarantee
- 43 sets of CNC and other machining equipment, 24-hour shifts, 3000 square meters of independent plants
- 6 sets of 5-axis CNC machines, 8 sets of CNC with tool changer, maximum stroke 1300mm.
- Dynamic milling technology, roughing efficiency increased by 50%.
- Stable staff, the company employs 100+ people, more than 5 years old staff accounted for 90%.
- 1-10 pieces of CNC machining 1-5 days, 100-1000 pieces of low-volume production 7-15 days
Engineers review drawings to eliminate problems, advanced testing equipment to ensure quality
- Engineer pre-examination of the drawing file, focusing on the audit of precision and assembly, the development of processing programs
- Original imported CNC machining equipment, BT spindle, finish Ra1.6, tolerance ±0.005mm
- Specialized in complex workpieces, can customize special jigs and fixtures for the project
- 21 kinds of testing equipments, such as automatic three-coordinate tester, two-element, height meter and so on.
- At least 4 full inspection procedures for each product.
- Passed ISO9001:2015 quality system certification.
Diversified customized processing saves time and effort, and after-sales actively respond to customer needs.
- Diversified customized processing: 500 kinds of materials + 28 kinds of processing technology + 21 kinds of surface treatment + customized packaging
- Free policy: no process consultation fee + no modification fee + no sampling fee
- Fast after-sales response: 30-minute response, solution within 2 hours, solution within 1 day.
- Return visit to new customers within 3 days, collect customer satisfaction questionnaire once a quarter, continuous improvement
what make us different
Functional CNC Prototyping
- Get real precision parts through Prototype CNC machining.
- Choose from a variety of production grade materials to meet your prototyping needs.
- 100% functional component mechanical testing is possible.
Rapid Development
- Professional CNC milling and machining processes allow for fast turnaround times.
- Drawings are uploaded directly to the machine network for efficient production.
- Use advanced 5-axis CNC machines to speed up production and reduce manual labor in machining.
Tight Tolerances
- Precision Parts: Achieving Accuracy
- Parts with typical tolerances of +/-.005
- Specially requested tighter tolerances can be accommodated
Value
- Get workable prototypes and low-volume CNC machining without breaking the bank.
- Choose a less expensive option compared to injection molding.
- CNC offers greater functionality and precision than 3D printing.
Materials
- Available in a variety of metal/plastic materials, the options are endless.
- Commercial and engineering grade materials can be easily processed.
- From stainless and alloy steels to aluminum, copper, and iron as well as high-strength, high-temperature metals such as inconel and molybdenum.
quality
- Check dimensions, surface roughness, and mechanical properties for each section and review inspection reports.
- Inspect part geometry and surface finish for compliance using CMM and vision technology.
- Functional testing ensures machined parts meet performance requirements in real-world applications.
Design CNC Machined Parts Considerations
01.
The Importance of Inside Diameter in CNC Machining
A larger internal radius reduces machining time in CNC processes. It’s recommended to maintain a radius greater than 1/3 of the depth of machining, or use an as large internal radius as possible. Consistent radii on all internal edges allows for tool uniformity.
02.
Tips for Optimal Cavity and Groove Design
To ensure efficient manufacturing, limit cavity and groove depth to 4 times the tool diameter or feature width. Holes should be a minimum of 1mm diameter and designed to standard sizes for fast and precise machining with a standard drill. Non-standard holes increase machining costs when an end mill is required.
03.
Avoid thin walls
Thin walls can increase vibrations during CNC machining. Minimum thickness for metal parts: 0.5-0.8 mm. Minimum thickness for plastic parts: 1.0-1.5 mm. Increase wall thickness to avoid vibrations in taller features. Careful consideration of wall thickness is crucial for optimal machining results.
04.
Avoid small or raised text
For efficient and effective text marking in CNC machining, opt for electrochemical etching or laser marking. When cutting text, use recessed rather than raised text whenever possible. Keep text simple, large, and with a font depth of no more than 0.3mm.
05.
Stick to the standards for threads
Adhere to standard sizes and lengths when creating threads. Add an extra length of half the hole diameter when tapping blind holes. Use threaded coils or brass nuts for longer service life, especially in soft materials. These guidelines improve thread performance and reliability.
Facilitate On-Demand Manufacturing for Quicker and Simpler Results.
Once you are prepared to commence your upcoming venture, you can effortlessly upload your 2D/3D CAD design files and our team of engineers will promptly provide you with a quotation within 24 hours.
- 10 to 500,000 parts available
- Save 50-70% costs
- 40% reduction in delivery time
Jacob Deng
- jacob@gainpower-mfg.com
- +86 137 1306 1055
Address
-
NO 1，HengZeng road,XinAn community,ChangAn town,
DongGuan City,GuangDong,China(Post code:523882)
- What is CNC machining service?
- What are the advantages and disadvantages of CNC Machining
- What are the Disadvantages of CNC Machining？
- What kind of CNC machining services do you offer?
- What is your CNC machining capability?
- What is the typical cost of a CNC machined part?
- What are the maximum size ranges of your machine travel?
- How do you ensure the quality of my parts?
CNC Machining Services Guide - Frequently Asked Questions
1.What is CNC machining service?
CNC machining is a manufacturing process that uses computer-controlled machines to produce precise and complex parts from raw materials such as metals, plastics, and woods. The process involves designing a 3D model of the part, which is then translated into machine code and used to control the cutting tools of the CNC machine. This results in a highly accurate and repeatable process that can produce parts with tight tolerances and intricate geometries. CNC machining services are commonly used in industries such as aerospace, automotive, and medical device manufacturing. Key advantages of CNC machining include fast production times, high precision, and the ability to produce complex shapes with ease.
2. What are the advantages of CNC machining services?
Precision: CNC machines are highly accurate, capable of producing parts with tolerances as small as a few microns. This level of precision is essential for applications that require exacting specifications.
Automation: CNC machines are computer-controlled, which means they can operate continuously without the need for constant manual intervention. This results in faster production times and higher output rates.
Versatility: CNC machines can produce a wide variety of parts, from simple to highly complex shapes, using a range of materials such as metals, plastics, and composites.
Efficiency: CNC machines are highly efficient, with the ability to produce parts quickly and with minimal waste. This makes them a cost-effective solution for many manufacturing applications.
Consistency: Because CNC machines are computer-controlled, they can produce identical parts with consistent quality and accuracy, which is critical for large-scale manufacturing operations.
3. What are the Disadvantages of CNC Machining?
- High initial cost: CNC machines can be expensive to purchase and install, making it difficult for small businesses or individuals to invest in this technology.
- Skilled operator requirements: CNC machines require skilled operators who are proficient in programming and operating the equipment. This can increase production costs, especially if there is a lack of skilled labor.
- Limited flexibility: While CNC machines are great for producing large numbers of identical parts, they may not be the best choice for producing one-off or custom parts due to the high set-up time and cost.
Despite these disadvantages, CNC machining is still a popular manufacturing process, and GPMFG’s 20 years of experience in high-precision manufacturing and its large production plant allow you to overlook these disadvantages to achieve accuracy, speed and ease of production of complex parts.
4. What kind of CNC machining services do you offer?
Our CNC machining services include milling, turning, drilling, threading, tapping, electrical discharge machining (EDM), EDM wire cutting, custom surface finishing, prototype machining, small lot or one-off part machine runs, modification of existing parts, material procurement assistance, limited material warehousing and part scheduling. Whether you need a single prototype or 10,000 pieces, we offer fast turnaround times and can deliver custom metal and plastic parts in as little as 7 days. From design to production, we work closely with our customers to ensure that your exact specifications are met, providing quality parts that meet your needs.
5. What is your CNC machining capability?
At our CNC machining center, we pride ourselves on our extensive capabilities and commitment to quality. With a team of over 80 highly skilled employees and 43 state-of-the-art CNC machines, we are capable of handling a wide range of machining projects with precision and speed. Our facility operates 24/7 to ensure fast turnaround times, and we have the capacity to produce over 100,000 machined parts each month for our clients.
6. What is the typical cost of a CNC machined part?
At our CNC machining company, we provide personalized quoting support for every project. We understand that different machining processes have varying costs and can impact the final price of your part. CNC lathes are typically 15% less expensive to machine than standard 3-axis CNC milling for similar parts.
On the other hand, 5-axis machining can be more costly, with continuous 5-axis CNC milling often costing over 20% more than a scaled 5-axis machine, also known as 3+2 milling. Additionally, 5-axis machining can cost double the price of standard 3-axis milling.
To reduce costs, we recommend larger production runs to spread the machine setup costs across more parts, resulting in more cost-effective CNC machined parts.
7. What are the maximum size ranges of your machine travel?
Maximum Dimensions (3-axis milling): 1800 x 1000 x 500 mm / 70.9 x 39.4 x 19.7 in
Maximum Dimensions (5-axis milling): 1000 x 900 x 600 mm /39.4 x 35.4 x 23.6 in, Worktable Diameter Φ400 mm.
8. How do you ensure the quality of my parts?
We understand the importance of quality assurance, especially when it comes to international orders. That’s why we’re proud to be an ISO-9001-certified factory, ensuring that our manufacturing processes meet the highest quality standards.
Our team of skilled QC/QA staff is equipped with dedicated inspection equipment and can provide detailed 2D reports, CMM reports, and 3D scan reports to guarantee the quality of your parts. We adhere to a strict MIL-STD-105E-based statistical sampling plan, which ensures that 100% of all dimensional tolerances, geometric tolerances, and print notes are documented with zero rejects.
You can trust that all dimensional inspection reports will be shipped with your parts, so you can rest assured that your order meets your specifications.
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