Lingjun Online CNC Machining Services | Fast Prototyping
Enjoy rapid prototype delivery or custom-machined parts from Lingjun — with turnaround times as fast as one day. Contact us for a quote and discover our on-demand online CNC machining services.
- High Precision CNC Machining, Tolerance as tight as ±0.01 mm
- 3, 4 & 5 Axis CNC Machining Services for Precision Components.
- Prototypes, Small Batch CNC Machining, or Mass Production.
- More Than 99+ Types of Certified Materials to Choose From.
- Certifications: ISO 9001:2015 | AS9100D | ITAR
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Our Custom CNC Machining Services
Our 3-axis, 4-axis, and advanced 5-axis—plus multi-axis—CNC machines enable us to easily manufacture high-precision plastic and metal parts with complex geometries. CNC machining has been at the core of what we do for over 12 years, and it remains our strongest expertise. Our CNC machining services cover a variety of machining methods, including milling, turning, engraving, electrical discharge machining, drilling, and precision grinding.
Precision CNC Milling Services
CNC milling is one of the most commonly used and widely applied machining processes. Lingjun's application of milling machines is truly masterful. Contact us to obtain your ideal CNC milling components through our CNC machining milling service.
Precision CNC Turning Services
Our precision CNC turning services are always performed efficiently at our CNC turning center. If you appreciate our CNC machining services, why not contact us? Lingjun – a powerful Chinese CNC machining factory with multiple CNC certifications.
When Speed & Accuracy Are Equally Essential, Choose Lingjun.
At Lingjun Automation, precision isn’t just a promise—it’s our foundation.
Equipped with state-of-the-art CNC machines and world-class inspection tools, we deliver parts engineered for performance, reliability, and lasting value.
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Get Your Online CNC Service Quote – Affordable And High Cost Performance
Bring your concept to life with rapid, high-precision CNC prototyping and full-scale production — engineered for accuracy, speed, and consistency.
Lingjun Automation Technology Co., Ltd., established in 2013, primarily engages in the R&D, production, processing, tooling, and fixture fabrication of precision mechanical parts. Precision is absolutely guaranteed, and the parts boast excellent appearance. The company has a comprehensive production and quality management system and is ISO9001 certified.
Lingjun CNC’s personnel and equipment configuration includes: 40 CNC machining centers, 2 CNC lathes, 2 milling machines, 1 large surface grinder, and 1 hand-operated grinder. Major testing equipment includes: Mitutoyo 2D height gauges, 2D measuring instruments, 3D measuring instruments, Mitutoyo micrometers, calipers, angle gauges, plug gauges, gauge blocks, and other high-precision instruments and equipment. The company has 51 mechanical professionals, 15 quality control personnel, 8 engineering technicians, and 28 machine operators.
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CNC Machining Materials
We offer a wide variety of metals and plastics to satisfy the functional demands of your custom components. Let’s start by exploring aluminum and see which one best suits your needs.
METALS
Aluminium
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Aluminum
Aluminum is light, durable, and highly machinable, making it an excellent choice for everything from aerospace components to automotive parts. Its natural resistance to corrosion also makes it ideal for outdoor use and structural applications.
Color:
Subtypes:
Aluminum 6061, 6061-T6, Aluminum 2024, Aluminum 5052, Aluminum 5083, Aluminum 6063, Aluminum 6082, Aluminum 7075, 7075-T6, Aluminum ADC12 (A380)
Available Finish:
As machined, Anodizing, Powder coating, Electroplating, Painting, Sand blasting, Polishing
Copper
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Copper
Copper offers exceptional conductivity and flexibility, which is why it’s widely used in electrical wiring and plumbing systems. Its inherent antibacterial qualities make it valuable in medical environments, and its warm, attractive appearance also makes it a popular material for decorative pieces and artistic designs.
Color:
Subtypes:
Copper C101(T2), Copper C103(T1), Copper C103(TU2), Copper C110(TU0), Beryllium Copper
Available Finish:
As machined, Polishing, Sand blasting, Tumbling, Electropolish, Alodine, Heat treatment, Black oxidize, Electroless nickel, Chrome plating, Brushed finish
Bronze
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Bronze
Bronze is a copper-tin alloy valued for its exceptional durability and natural corrosion resistance. Its strength and stability make it a popular choice for marine components, artistic sculptures, precision bearings, and other applications that demand reliable performance in tough environments.
Color:
Subtypes:
Copper C101(T2), Copper C103(T1), Copper C103(TU2), Copper C110(TU0), Beryllium Copper
Available Finish:
As machined, Polishing, Sand blasting, Tumbling, Electropolish, Alodine, Heat treatment, Black oxidize, Electroless nickel, Chrome plating, Brushed finish
Steel
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Steel
Steel is a durable, highly adaptable material used across countless construction and manufacturing applications. Its excellent tensile strength makes it ideal for load-bearing and structural parts, while different steel grades offer enhanced performance for more specialized uses—such as precision tools, heavy-duty machinery, and engineered components.
Color:
Subtypes:
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
Available Finish:
As machined, Electroplating, Passivation, Powder coating
Stainless Steel
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Stainless Steel
Steel is a durable, highly adaptable material used across countless construction and manufacturing applications. Its excellent tensile strength makes it ideal for load-bearing and structural parts, while different steel grades offer enhanced performance for more specialized uses—such as precision tools, heavy-duty machinery, and engineered components.
Color:
Subtypes:
Stainless Steel SUS201, SUS303, SUS 304, SUS316, SUS316L, SUS42, SUS430, SUS431, SUS440C, SUS630/17-4PH, AISI 304
Available Finish:
As machined, Electroplating, Passivation, Powder coating
Magnesium
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Magnesium
Magnesium is an incredibly lightweight yet durable metal, making it a popular choice in aerospace and automotive projects where every gram matters. Thanks to its excellent machinability, it can be shaped into complex, high-precision components with ease. You’ll also find magnesium widely used in electronics, not only because it’s light, but also for its impressive electrical and thermal conductivity.
Color:
Subtypes:
Magnesium Alloy AZ31B, AZ91D
Available Finish:
As machined, Polishing, Sand Blasting, Tumbling, Alodine, Heat treatment, Anodizing, Teflon coating, Electroless nickel, Painting, Powder coating, Electrophoresis
Titanium
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Titanium
Magnesium is an incredibly lightweight yet durable metal, making it a popular choice in aerospace and automotive projects where every gram matters. Thanks to its excellent machinability, it can be shaped into complex, high-precision components with ease. You’ll also find magnesium widely used in electronics, not only because it’s light, but also for its impressive electrical and thermal conductivity.
Color:
Subtypes:
Titanium Alloy TA1, Alloy TA2, Alloy TC4/Ti-6Al 4V
Available Finish:
As machined, Polishing, Sand Blasting, Tumbling, Electropolish, Alodine, Anodizing, Electroless nickel, Painting, Powder coating, Brushed finish
PLASTIC
ABS
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ABS
PET is strong, moisture-resistant, and recyclable. Commonly found in food containers, bottles, and textiles, it resists wear and tear over time.
Color:
Subtypes:
ABS Beige(Natural), ABS Blac, ABS Black Antistati, ABS Milky Whit, ABS+PC Black, ABS+PC White
Available Finish:
As machined, Sand blasting, Tumbling, Teflon coating, Painting, Powder coating, Electrophoresis
PC
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PC
PC is exceptionally strong, clear, and impact-resistant, making it one of the toughest engineering plastics available. Its high heat resistance and excellent dimensional stability make it ideal for lighting components, protective covers, electronic housings, and any application where clarity and durability are equally important.
Color:
Subtypes:
PC Black, PC Transparent, PC White, PC Yellowish White, PC+GF30 Black
Available Finish:
As machined, Sand blasting, Tumbling, Painting, Brushed Finish
PMMA (Acrylic)
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PMMA (Acrylic)
PMMA (acrylic) is clear, weather-resistant, and won’t fade. Ideal for outdoor displays, signage, and lighting, it holds up well in the elements.
Color:
Subtypes:
PMMA Black, PMMA Transparent, PMMA White
Available Finish:
As machined, Sand blasting, Tumbling, Painting
POM
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POM
POM is strong and has a low-friction surface, making it perfect for precision parts like gears and bearings where things need to fit just right and work smoothly.
Color:
Subtypes:
Dark brown (coffee) POM 100AF, POM Black, POM Blue, POM White
Available Finish:
As machined, Sand blasting, Tumbling, Painting
PA (Nylon)
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PA (Nylon)
Nylon is versatile, tough, and resists wear. Often chosen for gears, bearings, and other parts that handle constant friction and heat without breaking down.
Color:
Subtypes:
PA(Nylon) Blue, PA6 (Nylon)+GF15 Black, PA6 (Nylon)+GF30 Black, PA66 (Nylon) Beige(Natural), PA66 (Nylon) Black
Available Finish:
As machined, Sand blasting, Tumbling, Teflon coating, Painting, Powder coating
PE
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PE
Polyethylene is lightweight and tough, with great impact resistance. It’s a go-to material for packaging, containers, and anything that needs to resist cracking under pressure.
Color:
Subtypes:
HDPE, UHMW-PE, LDPE
Available Finish:
As machined, Sand blasting, Tumbling, Painting, Powder coating
PEEK/p>
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PEEK
Magnesium is an incredibly lightweight yet durable metal, making it a popular choice in aerospace and automotive projects where every gram matters. Thanks to its excellent machinability, it can be shaped into complex, high-precision components with ease. You’ll also find magnesium widely used in electronics, not only because it’s light, but also for its impressive electrical and thermal conductivity.
Color:
Subtypes:
Titanium Alloy TA1, Alloy TA2, Alloy TC4/Ti-6Al 4V
Available Finish:
As machined, Polishing, Sand Blasting, Tumbling, Electropolish, Alodine, Anodizing, Electroless nickel, Painting, Powder coating, Brushed finish
PP
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PP
Polypropylene is tough, chemical-resistant, and handles higher temps. It’s commonly found in car parts, containers, and packaging, especially where exposure to heat or chemicals is common.
Color:
Subtypes:
PP Black, PP White, PP+GF30 Black
Available Finish:
As machined, Sand blasting, Tumbling, Painting, Powder coating
HDPE
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HDPE
Polypropylene is tough, chemical-resistant, and handles higher temps. It’s commonly found in car parts, containers, and packaging, especially where exposure to heat or chemicals is common.
Color:
Subtypes:
HDPE Black, HDPE White
Available Finish:
As machined, Sand blasting, Tumbling, Painting, Powder coating, Teflon coating
HIPS
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HIPS
HIPS is easy to machine and holds up well to impact. This makes it an excellent choice for prototypes, models, and temporary displays where you need something light but sturdy.
Color:
Subtypes:
HIPS Board White
Available Finish:
As machined, Sand blasting, Tumbling, Painting, Powder coating, Brushed finish
LDPE
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LDPE
LDPE is flexible, lightweight, and naturally impact-resistant, making it a great choice for products that need to bend without breaking. It performs well in everyday applications like packaging, tubes, and containers, offering durability while keeping material costs low.
Color:
Subtypes:
LDPE White
Available Finish:
As machined, Painting, Powder coating, Teflon coating
PBT
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PBT
LDPE is flexible, lightweight, and naturally impact-resistant, making it a great choice for products that need to bend without breaking. It performs well in everyday applications like packaging, tubes, and containers, offering durability while keeping material costs low.
Color:
Subtypes:
PBT Black, PBT Milky White (Natural)
Available Finish:
As machined, Sand blasting, Tumbling, Painting, Powder coating
PPA
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PPA
PPA offers heat resistance and stiffness. It’s ideal for automotive and electrical applications where durability at high temperatures is essential.
Color:
Subtypes:
PBT Black, PBT Milky White (Natural)
Available Finish:
As machined, Sand blasting, Tumbling, Painting, Teflon coating, Brushed finish
PPA
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PPA
PAI is known for its amazing thermal and chemical stability. A top choice for aerospace and automotive sectors, it’s used in high-performance parts that withstand extreme conditions.
Color:
Subtypes:
PAI 4203, 4503, 4301, 4501
Available Finish:
As machined, Sand blasting, Tumbling, Painting, Teflon coating, Brushed finish
PET
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PET
PET is strong, moisture-resistant, and recyclable. Commonly found in food containers, bottles, and textiles, it resists wear and tear over time.
Color:
Subtypes:
PET Black, PET White, PET+GF30 Black, PET+GF30 White
Available Finish:
As machined, Sand blasting, Tumbling, Teflon Coating, Painting
PPS
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PPS
PPS is heat- and chemical-resistant, making it a great fit for automotive, aerospace, and industrial parts exposed to harsh environments that need to stay solid under stress.
Color:
Subtypes:
PPS Black, PPS White, PPS+GF30 Black
Available Finish:
As machined, Sand blasting, Tumbling, Teflon Coating, Painting
PS
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PS
Polystyrene is lightweight and easy to shape, making it a popular option for models, prototypes, and disposable packaging where strength isn’t the top concern but shaping is.
Color:
Subtypes:
PS Transparent
Available Finish:
As machined, Sand blasting, Painting
PVC
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PVC
PVC is durable, affordable, and resistant to chemicals. Found in plumbing pipes, medical devices, and electrical cables, it resists corrosion and wear.
Color:
Subtypes:
PVC Grey
Available Finish:
As machined, Sand blasting, Painting, Teflon coating, Powder coating
We provide a quotation of 100+materials so that you can better compare and choose suitable materials.
Check here to custom your cnc parts
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Surface Finishes Options of CNC Machined Part
The inherent surface texture left by CNC machining, while dimensionally accurate, often requires further refinement. We provide a comprehensive portfolio of precision finishing options that elevate your components, ensuring superior durability, tactile quality, and professional visual appeal.
Anodized
This highly durable finish offers a broad spectrum of color dyes and adjustable luster, ranging from uniform matte to brilliant gloss. The achieved oxide film thickness is tightly controlled, typically ranging from 2 µm to 40 µm.
Polishing
Our Polished Finish achieves an exceptionally smooth, high-gloss surface. Engineered for optical reflectivity, it meets a strict surface roughness standard of Ra 0.8μm (Ra 32 micro-inches).
Bead Blasting
Applicable across diverse metallic and plastic substrates, this process yields a uniform satin finish and subdued luster. Crucially, it is non-destructive, guaranteeing dimensional integrity with negligible material removal.
Black Oxide
Black oxide is a chemical conversion coating applied to ferrous metals. It delivers a uniform, non-reflective matte black aesthetic while providing mild corrosion resistance and enhanced lubricity (often requiring a supplementary oil).
Powder Coating
Suitable for metal parts, this finish provides matte, glossy, or textured surface options in fully customizable colors. Typical material removal ranges from 0.05 mm to 0.15 mm, delivering a clean and uniform appearance.
As Machined
As Machined means maintaining the original surface condition after machining, without any additional treatment. At Lingjun, this is an optional surface treatment option for parts, to avoid any misunderstandings regarding surface treatment.
Brushing
Brushing is a fantastic and widely used surface treatment process. Precision brushing imparts a refined satin finish to components, producing a smooth, uniform surface while subtly masking minor surface imperfections.
Electroless Nickel Plating
The electroless nickel plating process deposits a consistent, dense coating on metal surfaces, delivering superior corrosion protection while enhancing hardness and wear resistance for extended service life.
Chromate Conversion Coating
The resulting surface exhibits either a smooth or matte appearance, sometimes displaying a subtle clear or pale yellow hue. During the process, an extremely fine layer—ranging from 0.25 to 1 micrometer—is precisely removed, ensuring a uniform and controlled finish across the part.
E-Coating
Designed specifically for metal components, this surface treatment is available in both matte and glossy options, with black being the predominant choice due to its versatility and aesthetic appeal.
Painting
This surface treatment is suitable for both metal and plastic components, offering a range of finishes including matte, gloss, or textured. Precise color matching can also be achieved to meet specific design requirements or brand standards.
Heat Treatment
Through precisely controlled cycles of heating and cooling, heat treatment significantly improves the mechanical properties of metal components, enhancing hardness, tensile strength, toughness, and wear resistance, while also optimizing microstructural characteristics for superior performance in demanding applications.
If you have more complex surface finishing requirements
Please contact the info@lingjunth.com
CNC Machining for Various Industries
Aerospace CNC Machining
Auto CNC Machining
Shipping CNC Machining
Rapid Prototyping
Mold Making
Energy CNC Machining
Consumer Products CNC Machining
Semiconductor CNC Machining
CNC Machining for Medical Devices
Design Guidelines for CNC Machining Services
Elevate your project from blueprint to perfection with our engineering mastery. We provide a comprehensive Design for Manufacturability (DFM) consultation, where our CNC experts collaborate with you to refine critical component geometry. Leverage our specialized insight to streamline production, ensure flawless execution, and achieve predictable, high-yield CNC results.
| Guideline | Description | Notes |
|---|---|---|
| Radii | Sharp internal corners will naturally form radii Drill depth≤ 12× diameter Drill depth≤ 12× diameter | Ensures smooth corner transitions for CNC parts. |
| Threads and Tapped Holes | Thread depth specifications Φ 1.5–5 mm 3× diameter Φ ≥ 5 mm 4–6× diameter | RapidDirect can produce threads of any specification. |
| Undercuts | Thread depth specifications: Square profiles Full radius Dovetail profiles | Customizable for specific part geometries. |
| Text | CNC Milling: Min width 0.5 mm Max width 0.1 mm CNC Turning: Uses laser marking technology | Standard text via CNC or laser engraving, customizable per requirements. |
Get Your Custom Online CNC Machining Services Solution
Don’t hesitate any longer. Hesitation counts High-Volume CNC Machining – You Design It, We Bring It to Life
Leveraging years of hands-on experience in both production and project management, our team of technical specialists is ready to support your custom CNC machining requirements. We provide fast, reliable online CNC machining quotes 24/7, ensuring your project planning is seamless and efficient.
For every application, we offer expert guidance on optimal manufacturing strategies, material selection, and precision surface treatments, drawing on our extensive knowledge of high-precision CNC processes.as time. As long as you don’t take action, your ideas will remain just ideas forever.
End-to-End 1-Stop Solution Starting From New Product Development
Lingjun offers more than just manufacturing services. We provide a one-stop solution for the entire product development lifecycle, from design and prototyping to production and packaging. We help innovative companies worldwide bring their products to market more easily and quickly.
Project Initiation & Design
From concept to manufacturable design, our team helps global brands turn ideas into ready-for-prototyping solutions.
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Industrial Design
Concept sketches, high-quality product renders, and appearance specification documents. -
Mechanical Design
Detailed structural 2D/3D drawings and engineering documentation, optimized for manufacturing feasibility. - CMF Design Color, material and finish planning to align aesthetics with functionality and durability.
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Cost Estimation
Design-stage cost forecasting and customized cost-reduction plans for your target market.
Prototyping & Low Volume Production
Our extensive network supports prototyping and low-volume production needs, enabling rapid delivery of accurate testing and manufacturability feedback.
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Manufacturing Advisory
Material selection, DFM analysis, structural optimization, and process optimization recommendations. -
Assembly & Testing Support
Assembly guidance, process sequencing, EVT testing plan, EVT&DVT phase summary reports. - Low Volume Production Conduct small-batch manufacturing validation using final inspection reports and production summaries. Quality control plans with standards and methods.
Mass Production
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Supply Chain Integration
Conduct supplier evaluation and comprehensive reports. -
Raw Material Procurement & Management
Assist in developing procurement plans; inspect raw material quality. - Technical Support Offer technical solutions to facilitate mass production, optimize processes, and enhance quality control.
- Cost Control & Delivery Management Assist in controlling costs and timelines, with estimates to support project goals.
Packing
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Packaging Design
Includes 2D and 3D drawings. -
Packaging Supplier Management
Evaluate packaging suppliers and provide assessment reports. - Sample Testing Provide sample inspection reports.
- Packaging Execution Offer packaging production plans, raw material lists, and final production summaries.
FAQ's About CNC Machining Service
How can I determine if my ideas are suitable for CNC machining?
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Does your company have a minimum order quantity for CNC machining orders or other machining orders?
Can you provide quality inspection reports?
How much does your CNC machining service cost?
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CNC Machining Resources
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Don’t hesitate any longer. Hesitation counts as time. As long as you don’t take action, your ideas will remain just ideas forever.