CNC Machining Services
Rapid Prototypes & Production Parts in Plastics. Instant Quotes, Competitive Pricing – Get Your Custom Parts Machined Today!
CNC Machining Manufacturer in China
Custom CNC Machining Services for Plastic Parts
When your project requires accuracy, durability, and flexibility, our CNC plastic machining services provide the perfect solution. Using advanced milling and turning equipment, we specialize in producing custom plastic machining parts that meet tight tolerances and complex design requirements.
Custom CNC Milling Service
With our CNC lathes, turning centers, and mill-turn machines, we can create cylindrical-shaped workpieces, also for square or hexagonal-shaped raw materials. Turned prototypes and production parts delivered in just a few days.
Custom CNC Turning Service
With our CNC lathes, turning centers, and mill-turn machines, we can create cylindrical-shaped workpieces, also for square or hexagonal-shaped raw materials. Turned prototypes and production parts delivered in just a few days.
Because We Can
China-Based Strengthen
Manufacturing Network.
Leland owns factories and works with highly vetted partners in China. This extensive network allows for fast production and scalable capabilities for custom plastic and metal parts, ensuring high quality and reliability for all your projects
Years Experience
We always adhere to the machining industry and serve our customers
Tight Tolerance
Strict production control with tight tolerances ensures that the quality meets the usage requirements
Customers
Reliable customer support keeps us moving forward
Lead Time
Stable delivery schedule to ensure that customer usage is not affected
CNC Machining Material
Our team has years of experience working with engineering plastics such as UHMW, nylon, PTFE, Delrin, and PEEK. Every component is produced under strict quality control to ensure the highest level of consistency and performance. From prototypes to small-batch production, we deliver precision plastic machining that supports industries including medical, aerospace, automotive, and electronics.
CNC Machining Surface Finishes
Plastic parts produced by machining often require surface treatments to improve their appearance, durability, and functionality. In practice, the selection of surface treatment depends on plastic type、requirement properties and application environment.the main categories of treatments include:
| Mechanical Finishing | Polishing / Buffing – smoothens the surface and improves transparency (important for acrylic/PC) Sanding / Abrasive blasting– controls roughness, prepares the surface for coatings or bonding. Vapor polishing – especially for polycarbonate and acrylic to achieve optical clarity. |
| Chemical Treatments | Etching / Chemical texturing – alters surface gloss or adds micro-patterns. Solvent smoothing – melts the outer layer slightly for a glossy, uniform finish. |
| Coatings & Painting | Spray painting – provides color, aesthetics, and limited protection. Powder coating (special plastics only) – less common, requires heat resistance. UV coatings – increase weather and scratch resistance. Electrostatic painting – for uniform surface finish on ABS and similar plastics. |
| Plating & Metallization | Electroless plating (nickel, copper, chrome) – applied to ABS and PC/ABS blends after special surface activation; improves conductivity, shielding, and aesthetics. Vacuum metallization – deposits aluminum or other metals for decorative or reflective purposes. Sputtering / PVD coatings – thin metal or ceramic layers for wear resistance and decorative effect. |
| Thermal Surface Processes | Flame polishing – melts and smooths transparent plastics like acrylic. Laser texturing / engraving – creates permanent patterns, logos, or textures. |
| Functional Treatments | Anti-static / Conductive coatings – reduce static buildup. Hydrophobic / Oleophobic coatings – improve resistance to water and oil. EMI/RFI shielding – achieved by conductive coatings or plating |
CNC Machining Tolerance
Our CNC machining capabilities deliver precision tolerances down to ±0.01mm, adhering to ISO 2768-mK standards for dimensional consistency. This ensures seamless component mating and optimal functional performance across all machined parts.
| Min Wall Thickness | 0.5mm |
| Min End Mill Size | 0.5mm |
| Min Drill Size | 1mm |
| Maximum Part Size | CNC Milling: 4000×1500×600 mm CNC Turning: 200×500 mm |
| Minimum Part Size | CNC Milling: 5×5 ×5 mm CNC Turning: 2×2 mm |
| Lead Time | 15 bussiness days for most projects. Delivery of simple parts can be as fast as 1 day. |
Design Guidelines for CNC Machining
Optimize your designs for CNC manufacturability with our expert guidelines. Our engineering team provides DFM (Design for Manufacturing) feedback to ensure optimal performance, cost efficiency, and precision in custom machined parts.
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Plastic CNC Machining Solutions
Whether you’re creating a small batch of custom parts or scaling up for high-volume production, Lelnad custom CNC machining services offer the flexibility you need.
Rapid Prototyping
CNC rapid prototype machining is perfect for creating engineering or production prototypes that closely resemble the final product in both appearance and functionality. At Leland, we offer instant quotes and fast delivery, providing you with precise, high-quality CNC machined prototypes for your needs.
Low Volume Manufacturing
Low volume CNC machining often acts as a bridge between prototyping and mass production for new and emerging production. With , this process becomes easier, more efficient, and cost-effective, allowing you to scale production quickly while maintaining high-quality standards.
Mass-Volume Production
CNC production machining is the best solution for producing a thousand parts or more efficiently. Leveraging a diverse selection of materials and automation and multi-axis capabilities, Leland delivers high-volume production with tight tolerances, superior dimensional accuracy, high reliability and fast turnaround times.
CNC Machining for Various Industries
Whether you’re creating a small batch of custom parts or scaling up for high-volume production, Lelnad custom CNC machining services offer the flexibility you need.
Aerospace
Medical
Automative
Robotics
Automation
Semiconductor
CNC Machining FAQS
Leland will regularly share some knowledge and information about customized plastics CNC machining, Sheet Metal Fabrication, Injection Molding and how to operate 4-axis and 5-axis CNC machines to get the best-machined precision solutions.
A: CNC machining is a manufacturing process that uses computer-controlled machines to produce high-precision, complex parts with tight tolerances and exceptional surface finishes.
A: Aluminum, steel, high-performance alloys, and Engineering plastics.
A: Aerospace, medical, automotive, and energy, etc.
A: Milling, turning, drilling, and tapping, to meet the unique needs of our clients.
A: Our turnaround time depends on the complexity and volume of the project.
A: Yes, we offer design and engineering support to ensure that the final product meets our clients’ exacting standards.
A: Our rigorous quality control system ensures that every part we produce meets the highest standards of quality and accuracy.
A: Contact us today to learn more about our services and how we can help bring your products to market faster and more cost-effectively.
Put your parts
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