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Custom CNC Machining Services from China
Deliver your CNC Machining parts as design specifications, on time, and at a cost-effective factory price.
- Over 40 Certified Materials
- Custom Finishes
- No Minimum Order
- Fast Turnaround
Save 30% on average!
10+Years
Manufacturing experience
420+Customers
Over the world
2M+Parts
Custom Machined
99.9%
Satisfaction
Precision CNC Machining Services Supplier in China
Are you looking for a reliable partner to provide CNC machining services?
AT Machining is a leading CNC machining services supplier in China.
Our 3-axis, 4-axis, and 5-axis CNC milling, turning centers and CNC Lathe machine enable to make precise, high-quality CNC parts that fulfill your custom specifications.
With over 50 sets of CNC machines in China, AT Machining can be your ideal choice for outsourcing custom and precision CNC machining services. no matter your industry. Get your quote today.
3 Axis, 4 Axis and 5 Axis CNC Machining Service for simple and complex geometries parts.
CNC turning with live tools combines lathe and milling capabilities to machine parts with cylindrical features.
Finishes Services
Add multiple finishes to your parts, such as Anodizing, Sand Blast, Powder Coat, Plating, etc.
Materials for CNC Machining Parts
AT offers a wide variety of materials for custom CNC machining, plastic, and metal, including but not limited to:
CNC Metals
Aluminum: Aluminum’s strength-to-weight ratio, affordability, and recyclability have made it widely used across industries worldwide.
Alloys: 6061-T6, 7075-T6, 2024, 5052, 6060, 5083, 2017, 6082
Finishing Options: Alodine, Anodizing Types II, III, III + PTFE, ENP, Media Blasting, Nickel Plating, Powder Coating, Tumble Polishing
Stainless steel: Stainless steel’s corrosion resistance and ductility make it ideal for long-term exposure to elements and easy shaping into different forms
Finishing Options: As machined, Bead Blasted, Polishing, Decorative Chrome Plating, Powder Coat, Nickel Plating, Gold Plating, Silver Plating
Alloys: SS303, Stainless Steel 304/304L, Stainless Steel 316/316L, Stainless Steel 17-4, Stainless Steel 416, etc.
Alloy Steel: Alloy steel is steel mixed with elements like manganese, nickel, and chromium to enhance its strength, hardness, corrosion resistance, and durability, tailored to meet specific application needs.
Alloy: AISI 1215, AISI 4140, AISI 4340, AISI 8620, AISI 4130
Finishing Option: Polishing, Plating, Painting, Powder Coating and etc.
Tool Steel: Tool steel is a type of high-carbon and high-alloy steel that is specifically designed to be used in the manufacture of cutting tools, dies, and molds. It is valued for its high hardness, wear resistance, and toughness, which make it suitable for applications where the tool is subjected to repeated impacts or stresses.
Alloy: A2 Tool Steel, D2 Tool Steel, O1 Tool Steel, S7 Tool Steel, M2 Tool Steel
Finishing Option: Bead/Sand Blast, Polishing, Plating, Painting, Powder Coating, Heat Treatment and etc.
Brass: Brass is an alloy of copper and zinc, especially metal material with more than 20% zinc content, which is the most commonly used metal material in cnc machining
Finishing Options: Nickel Plating, Bead Blasted, Gold Plating, Silver Plating
Alloy: C360, C260
Copper: Copper is a soft, malleable metal with excellent thermal and electrical conductivity, making it an essential material in many industries.
Grade: C10100, C11000, C12200, C14500, C17200
Finishing Option: Plating, Polishing
Titanium：Titanium has a low density and high strength, making it ideal for applications that require a strong yet lightweight material, such as aerospace, automotive, and biomedical industries. It is also highly resistant to corrosion and can withstand exposure to many chemicals and environments
Alloy: Ti-6Al-4V, Ti-6Al-2Sn-4Zr-2Mo, Ti-3Al-2.5V
Finishing Option: Polishing, Anodizing, Sandblasting, Chemical etching, Laser engraving and etc.
Titanium: Magnesium is a versatile and lightweight metal with a silvery-white appearance, known for its exceptional strength-to-weight ratio, excellent thermal and electrical conductivity, and widespread use in industries such as aerospace, automotive, and healthcare.
Alloy: AZ31B, AZ91D, We43, AM60B, ZK60A, QE22
Finishing Option: Blasting, Anodizing, Chromate Conversion Coating, Passivation, Powder Coating, Electroplating etc.
CNC Plastics
POM (Delrin/Acetal): High stiffness, good moisture resistance, high wear-resistance, and low friction, easy to machine
Color: White, black, brown
Grade: POM-C, POM-H, UV stabilized POM, Food-Grade POM
PMMA: PMMA is commonly known by the trade name “acrylic” or “plexiglass”. It is a lightweight and shatter-resistant material that is often used as a glass substitute in applications such as skylights, displays, signage, and lenses
Color: Transparency
Grade: Extruded PMMA, Cast PMMA, Impact-Modified PMMA, UV-Stabilized PMMA, Heat-Resistant PMMA
PEEK: PEEK is a high-performance engineering thermoplastic with excellent mechanical, chemical, and thermal properties, short for Polyether Ether Ketone
Color: Beige with no transparency
Grade: Unfilled PEEK, 30% glass-fiber reinforced PEEK, 30% carbon-fiber-reinforced PEEK, Bearing Grade PEEK
ABS: ABS is tough, rigid, and lightweight, making it an excellent material for use in applications such as automotive parts, toys, electronic housings, and consumer goods. It is also resistant to impact, chemicals, and heat, making it a popular choice for use in harsh environments
Color: ABS is naturally opaque and comes in a range of colors including black, white, and gray
Grade: General purpose ABS, Flame retardant ABS, High impact ABS, Heat-resistant ABS
Nylon: Nylon is a strong, durable, and elastic material that is commonly used in textiles like clothing and ropes. Its resistance to abrasion, chemicals, and moisture makes it popular for industrial applications, such as gears, bearings, and automotive components
Color: Nylon is often used in its natural off-white or slightly yellowish color
Grade: Nylon 6, Nylon 6/6, Nylon 11, Nylon 12
PTFE: PTFE(Teflon) is a high-performance plastic material known for its exceptional chemical resistance, low friction coefficient, and high-temperature resistance
Color: The color of PTFE is typically white or off-white
Grade:
PVC: PVC stands for polyvinyl chloride, which is a synthetic thermoplastic polymer that is widely used in various applications. PVC is a versatile material that can be rigid or flexible
Color: clear or opaque
Grade: UPVC, PPVC, CPVC
PEI: PEI has excellent mechanical, thermal, and electrical properties, as well as good chemical resistance
Color: Amber or brownish color
Grade: Unfilled PEI, Glass-Filled PEI, Carbon-Filled PEI, Ultem PEI
PAI: or Torlon Polyamide-imide, is a type of thermoplastic polymer that is known for its excellent mechanical properties that it maintains over a wide range of temperatures.
Color: Yellow
Grade: Torlon4203, Torlon4503, Torlon4301,Torlon4501
Gallery of Our CNC machining parts
We machine rapid prototypes and low & large volume production orders for customers in multiple industries: medical devices, aerospace, automotive, defense, electronics, hardware startups, industrial automation, machinery, marine and robotics, and many more.
Surface Finishes for CNC Machined Parts
Apart from custom CNC machining services, we also provide complete surface finishing options for precision machined parts. If you require custom finish not on this list, please do get in touch as it is likely we can source it for you.
As machined (Ra 3.2μm / Ra 126μin)
This finishing option with the shortest turnaround time. Parts have visible tool marks and potentially sharp edges and burrs, which can be removed upon request.
Smooth machining (Ra 1.6μm / Ra 63μin)
Smooth machining is similar to a ‘As machined’ finish, but with less visible machine marks. Parts are machined at a lower feed rate, with no hand polishing.
Polishing (Ra 0.8μm / Ra 32μin or better)
Polishing is the process of creating a smooth and shiny surface by rubbing it or by applying a chemical treatment.
Bead Blasting
Machined parts are bead blasted with glass beads which results in a uniform grainy texture and reduced machining marks.
Tumbled
It is a process that tumbles vibrating media on machined parts to remove sharp edges and burrs.
Tumbling can be used to remove machine marks from exterior surfaces.
Bead blasted + Anodizing type II
The parts are bead blasted to #120 grit before being anodized type II—ideal for increasing the aluminum part’s corrosion resistance and cosmetic effects.
Bead blasted + Anodized type III (Hardcoat)
The parts are bead blasted to #120 grit before being anodized type III. Type III (Hard Coat) is thicker and adds a wear-resistant layer to Type II’s corrosion resistance, suitable for functional applications.
Black Oxide
Black oxide is a conversion coating that is used on steels to improve corrosion resistance and minimize light reflection.
Powder Coated
This is a finish of applying powdered paint to the components and then baking it in an oven, which results in a stronger, more wear- and corrosion-resistant layer that is more durable than traditional painting methods.
Chromate Conversion Coating
Chromate conversion coating is used to improve the corrosion resistance of aluminum and aluminum alloys while keeping their conductive properties. It is also applied as a base layer prior to priming and painting parts.
Plating
Include Nickel Plating, Silver Plating, Gold Plating, Zinc Plating, Chrome Plating, Tin Plating and etc, it is ideal to reduce corrosion, improve the appearance and function of solderability and electrical conductivity.
DLC (Diamond-Like Carbon) Coating
DLC (Diamond-Like Carbon) coating is a hard, wear-resistant coating made of a carbon-rich material that exhibits some of the properties of diamonds.
*Other surface finishes are also available. Learn more about our metal and plastic surface finishing capabilities here.
What is CNC Machining?
CNC machining is a widely used manufacturing process that automates the creation of designs from metal or plastic stock using high-speed cutting tools. Standard CNC machines include 3-, 4-, and 5-axis milling machines, lathes, and routers, with variations in how parts are cut. Workpieces may be stationary while the tool moves, the tool may stay put while the workpiece is rotated and moved, or both the tool and workpiece may move in unison.
Skilled machinists program CNC machines based on CAD models to cut precise and repeatable tool paths for custom parts. CNC machining works with almost any metal or rigid plastic, making it suitable for industries from aerospace to electronics. AT-Machining provides custom CNC services for over 50 materials, from commodity aluminum to advanced titanium and engineered plastics like PEEK and Ultem 2300.
Advantages and Challenges of CNC Machining?
Accuracy and precision: CNC machines are highly accurate and can consistently produce parts with tight tolerances. This level of precision is difficult to achieve with manual machining processes.
Repeatability: CNC machines can produce identical parts over and over again with the same high level of accuracy and precision. This makes CNC machining ideal for large-scale production runs.
Speed: CNC machines can produce parts quickly and efficiently, especially when compared to manual machining processes. This allows for faster turnaround times and shorter production cycles.
Flexibility: CNC machines can be programmed to produce a wide range of parts and can handle a variety of materials, including metals, plastics, and composites.
Reduced labor costs: Because CNC machines are automated, they require less human intervention than manual machines. This means that fewer workers are needed to operate and monitor the machines, which can result in lower labor costs.
Complexity: The programming and operation of CNC machines require specialized training and technical knowledge. This can be a challenge for companies that don’t have experienced CNC operators on staff.
Limited flexibility: While CNC machines can produce a wide range of parts, they are limited by the size and capabilities of the machine. This means that some parts may be too large or too complex to be produced by a particular CNC machine.
Material limitations: While CNC machines can handle a wide range of materials, certain materials may be more difficult to machine than others. This can result in longer machining times, increased tool wear, and other challenges.
Why Choose AT for Custom CNC Machining?
Saving Your Cost
You will save 30-50% of the cost because of our efficient production capacity and cost control.
Quality Assurance
As an ISO 9001:2015 certificated manufacturing company, we offer SGS, RoHS, material certifications, and inspection report for our customers.
On-demand Production
Our CNC milling services will support you from 1 pcs to 10k+ pcs, no matter prototype, low volume manufacture, or mass production.
High Precision Tolerances
Offering tolerances range from +/-0.001′′ to 0.005′′, depending on client specifications. We are experts in producing custom components.
Material Selection
Choose from 50+ engineering-grade plastics and metals, including ABS, polycarbonate, nylon, PEEK, aluminum, stainless steel, platinum, and copper for diverse part applications and industries.
Fast and Reliably Delivery
Experience dependable and punctual delivery of your products from our CNC facility strategically located in Shenzhen, China, near major shipping ports for seamless transportation and peace of mind.
CNC Machining FAQs
Do you have a minimum order quantity?
NO! – No minimum quantity! AT Machining provides rapid prototypes and short to medium-run production machining services.
What type of design files does AT Machining accept for quoting?
For the 3D drawing, we would prefer STEP, IGES, or X_T format. For the 2D drawing, we would prefer PDF format there are tolerances with the dimensions if possible.
How can I pay AT Machining?
AT Machining accepts payment in two ways: 1. Bank to bank wire transfer 2. PayPal
What general tolerances can AT Machining achieve?
General CNC Machining Tolerances on metal to +/- 0.005" (+/- 0.127 mm) following ISO 2768 unless otherwise specified. CNC Plastics and composites will be +/- 0.010”(+/- 0.254 mm).
What precision tolerances can AT Machining achieve?
CNC Precision Machining Tolerances down to ±.0002" (0.005mm). AT can manufacture and inspect to tight tolerances per your drawing specifications.
How quickly can I get my parts?
Lead times are 2 to 3 weeks for prototypes and 4 weeks for production runs. Emergency and rush services are available.
Get your parts into production today!
Meeting Your Needs, Solving Your Problems – We’re Here to Make CNC Machining Hassle-Free!