CNC Milling Services
From Prototyping To Production
Get reliable CNC milling services for your plastic and metal parts, made and delivered when you need them.
Our team is here to help take your product from design and prototyping all the way to full production.
From single prototypes to large-scale production runs of up to 10,000 units, we adapt to your project’s requirements. Parts are ready in as little as 3 days.
Our state-of-the-art in-house machine shop is powered by a team of over 100 experienced professionals dedicated to delivering excellence.
We achieve tight tolerances of ±0.010mm, ensuring your components meet even the most stringent specifications.
As an ISO 9001:2015 certified manufacturer, we guarantee high-quality products and consistent performance every time.
LJ Professional Customization
LangJue CNC Milling Capabilities
At LangJue, we specialize in delivering tailored CNC milling services for both plastic and metal components. Leveraging advanced multi-axis CNC machining centers, we manufacture parts ranging from simple designs to intricate, complex geometries.
Whether you’re looking for prototype development or production-ready parts, our skilled team ensures top-notch quality with cost-effective solutions. Additionally, we offer a wide range of surface finish options to guarantee your machined parts meet both your functional and aesthetic requirements.
LJ Professional Customization
3/4/5 Axis CNC Milling Services
LangJue provides comprehensive CNC milling solutions with 3/4/5 axis machining capabilities. Our 3-axis and 4-axis machines, operating on the X, Y, and Z axes, are widely used for creating parts with straightforward geometries. These processes are ideal for producing high-quality components with efficiency and precision, meeting most standard machining needs.
The 5-axis CNC mill represents a higher standard in advanced manufacturing. This state-of-the-art technology enables us to machine all five sides of a workpiece in a single setup. Compared to 3-axis milling, this method significantly enhances efficiency and allows us to create complex geometries with exceptional accuracy, making it an excellent choice for demanding and intricate designs.
CNC Milling Tolerances
According to IS0 2768-1:1989, Values in millimeters.
| Basic size range | Fine | Medium | Coarse | Very coarse |
|---|---|---|---|---|
| 0.5 up to 3 | ± 0.05 | ± 0.1 | ± 0.2 | - |
| over 3 up to 6 | ± 0.05 | ± 0.1 | ± 0.3 | ± 0.5 |
| over 6 up to 30 | ± 0.1 | ± 0.2 | ± 0.5 | ± 1 |
| over 30 up to 120 | ± 0.15 | ± 0.3 | ± 0.8 | ± 1.5 |
| over 120 up to 400 | ± 0.2 | ± 0.5 | ± 1.2 | ± 2.5 |
| over 400 up to 1000 | ± 0.3 | ± 0.8 | ± 2 | ± 4 |
| over 1000 up to 2000 | ± 0.5 | ± 1.2 | ± 3 | ± 6 |
| over 2000 up to 4000 | - | ± 2 | ± 4 | ± 8 |
LJ Professional Customization
At Langjue, we adhere to standard tolerances based on ISO 2768, with medium tolerances for machined plastics and fine tolerances for machined metals. Typically, our CNC machining can achieve tolerances ranging from ±0.005″ (±0.125mm) to ±0.002″ (±0.05mm). For projects requiring tighter tolerances, a detailed 2D drawing with full specifications will be required. Our experienced engineering team will work closely with you to ensure critical dimensional requirements are met and deliver the highest possible precision for your parts.
CNC Machining Finishes
We offer complete CNC machining surface finishing solutions designed to meet both aesthetic and functional needs for any project. Our services include a variety of finishes such as sanding, sandblasting, mirror polishing, painting, printing, laser engraving, anodizing, electroplating, nickel plating, chrome plating, powder coating, and more. Each finish is tailored to enhance the performance and appearance of your components.
CNC Machining Materials
A16061, A16063, A16082, A17075, Al2024, A15052, A380, etc.
55201, 55301, 55303, SS304, 55316, 55416, etc.
Mild Steel, Carbon Steel, 4140, 4340, Q235, Q34513, 20#, 45#, etc.
C35600, C36000, C37700, C37000, C37100, C28000, C26000, C24000, C22000, etc.
C11000, C12000, C12200, C10100, etc.
20#, 45#, Q235, Q345, Q3458, 1214, 12L14, 1215, etc.
POM, Peek, PMMA, ABS, Del Rin, Nylon, PVC, PP, PC, etc.
LJ Professional Customization
WHY Choose LJ's CNC Milling Services
Rapid Turnaround
Our CNC milling services enable fast production of parts, often within just a few hours. Once you reach out to us, we’ll provide a quote within 24 hours and begin the project promptly, ensuring it aligns with your timeline.
Customized Finishes
At LJ, we offer a wide range of surface finishing options tailored to your CNC machining needs. Our team ensures that each part is crafted with a smooth, high-quality finish, precisely as per your specifications.
Precision Tolerances
We specialize in CNC milling to achieve exceptional dimensional accuracy. Whether you’re working with plastic, metal, or other materials, you can count on us to deliver parts with tight tolerances that meet your exact requirements.
Comprehensive Milling Solutions
Equipped with advanced 3-axis, 4-axis, and 5-axis CNC machines, we have the capabilities to manufacture complex, precision parts for various industries. Our high-quality milling tools ensure custom parts are made to exact specifications.
Skilled Engineering Team
Our engineering team brings years of hands-on experience in CNC milling, ensuring that every custom part is created with the highest standards of precision and quality.
ISO 9001 Certified Quality
LJ is committed to delivering top-quality results. Our ISO 9001 certified quality management system, combined with a dedicated QC and QA team, ensures all CNC machining processes meet rigorous standards for accuracy and reliability.
Upload Your CAD File
To begin, provide your contact details and upload the CAD file of your design. This allows us to create a detailed 3D model of the part or prototype you're looking to produce.
Receive a Quote & Design Review
Within 12 hours, we’ll send you a detailed quote along with Design for Manufacturability (DFM) feedback. This ensures the feasibility of your project and gives you a clear idea of the costs involved.
Confirm Your Order & Begin Production
Once you approve the quote and design, we’ll proceed with the production of your CNC prototype or machined parts.
Shipping & Delivery
Your CNC machined parts will be completed within a few days and shipped via international express. We encourage you to share feedback to ensure your order meets your expectations.
Just 4 Steps
The CNC Machining Quotation
From detailed consultation to final delivery, we make custom parts orders simple and easy. We pride ourselves on providing exceptional customer service by anticipating your needs, offering customized solutions and on-time delivery.
CNC Milling Case
Applications of CNC Milled Parts
Common applications include the following:
- Medical: CNC milling produces precision parts for healthcare, including orthopedic implants, surgical instruments, and components for medical devices.
- Electronics: Milling machines create housings, panels, engraved parts, and intricate electronic components with precision, meeting the diverse needs of the electronics industry.
- Automotive: CNC milling produces specialized automotive components like gearboxes, turbochargers, and interior panels, ensuring superior functionality and fit.
- Aerospace: Aerospace components like engine parts, transmissions, landing gear, and housings are crafted using CNC milling for unmatched precision and durability.
- Food Industry: CNC milling designs components for food machines, including blenders, grinders, and processing devices, ensuring efficiency and high performance.
- Machine Tooling: CNC milling fabricates high-accuracy parts like fasteners, shafts, hydraulic components, and other essential mechanical elements for tooling needs.
To offer an accurate and detailed quote, we require the following details:
1.CAD files in 2D or 3D formats, including STP, IGES, X_T, DWG, PDF, or STL.
2.The desired quantities, machining processes, and the type of raw materials.
3.Any secondary operations required, such as finishing, heat treatments, anodizing, or plating.
4.Specific customer requirements, including First Article Inspection (FAI), PPAP, or external certification needs.
5.Additional helpful information, like target pricing or expected lead times.
As a contract manufacturer, we don’t typically handle part design, but we can assist with Design for Manufacturability (DFM). Through DFM guidance, we help optimize your design for efficiency and cost reduction while maintaining its intended functionality.
We strive to respond to quote requests within one business day. To expedite the process, please provide complete and accurate project information, which helps us deliver faster and more precise feedback.
Our lead times vary depending on our current workload, the part’s complexity, and the order size. After your purchase order is confirmed, documentation completed, and materials secured, we’ll provide an exact delivery timeframe. This can range from as little as three business days to several weeks.
For international orders, quality assurance is key, and our ISO-9001-certified facility ensures consistent, reliable results. Equipped with advanced inspection tools and a skilled QC/QA team, we deliver:
1.2D inspection reports, CMM reports, or 3D scanning reports.
2.Full documentation of all dimensional tolerances, geometric tolerances, and specifications.
3.Statistical sampling based on MIL-STD-105E standards, guaranteeing zero defects.
All inspection reports are packaged and sent along with your completed parts for transparency and peace of mind.
CNC Machining Quotes FAQs
We provide precision parts made from engineering-grade materials, perfect for functional tests or final use. Explore our FAQs to learn more about CNC machining services and related technical support.
CNC Machining FAQs
We provide precision parts made from engineering-grade materials, perfect for functional tests or final use. Explore our FAQs to learn more about CNC machining services and related technical support.
CNC machining, or computer numerical control machining, encompasses a variety of processes we specialize in, such as: Precision milling, Turning, Drilling, Threading and tapping, EDM and wire EDM, Custom surface finishing, Prototype manufacturing, Small-batch and one-off runs, Modifying existing parts, Assistance with material sourcing, Limited warehousing and organized part dispatching, We handle projects from prototypes to full-scale production, delivering anywhere from 1 to 10,000 pieces. Quick turnarounds are a priority, with deliveries available in as few as three days.
Our dedicated engineering and sales teams provide tailored quotes based on your project needs. For similar components, CNC lathe machining typically costs 15% less than standard 3-axis milling. However, continuous 5-axis milling is approximately 20% more expensive than indexed 5-axis (or 3+2 milling) and can cost twice as much as 3-axis milling. For cost efficiency, consider larger production runs to offset setup expenses.
3-Axis Milling: Maximum dimensions of 1270×508×635 mm
5-Axis Milling: Maximum dimensions of 450×700×400 mm, with a worktable diameter of Φ400 mm
The standard finish, known as “as-machined” or “as-milled,” displays minimal tool marks. Surface roughness (Ra) typically falls between 1.6-3.2 μm. Enhanced finishes, ranging from 0.8-1.6 μm to 0.2-0.8 μm, are available for projects requiring a finer texture, though additional costs and machining time may apply.