Get precision CNC turning for metal and plastic components, from simple cylindrical parts to complex multi-featured designs. We deliver high-quality parts with tolerances of ±0.01 mm, offering a wide range of materials, surface finishes, and fast lead times with delivery in as little as 3 days.
CNC turning is a precision manufacturing process where a workpiece rotates on a lathe while a cutting tool removes material to create cylindrical, conical, or complex rotational shapes. Controlled by computer programs, the lathe adjusts cutting speed, tool position, and feed rates to achieve high accuracy and repeatable dimensions. CNC turning is ideal for producing shafts, bushings, threaded components, and other parts requiring precise diameters, smooth surfaces, and tight tolerances.
BIE CNC turning services provide custom metal and plastic turned parts with consistent quality and controlled precision. As an ISO 9001:2015 certified manufacturer, we support both prototyping and production for global customers. Our CNC turning capabilities cover simple to complex cylindrical components. With advanced CNC lathes and live tooling, features such as holes, grooves, slots, and flats can be completed in one setup, ensuring stable accuracy and repeatability.
Our CNC turning services support a broad range of metals and plastics, allowing you to choose materials that best match your part’s performance, durability, and application needs.
Surface finishes are available to enhance part performance, durability, and appearance. Depending on material and functional needs, finishes can improve corrosion resistance, wear resistance, surface smoothness, or visual consistency.
| Surface Finish | Description |
|---|---|
| As Machined | Parts are delivered directly after turning, retaining fine tool marks. Suitable for functional components where surface appearance is not a primary concern. |
| Anodizing | An electrochemical treatment mainly for aluminum parts to improve corrosion resistance, surface hardness, and color uniformity. |
| Polishing | Refines turned surfaces to reduce roughness, improving smoothness, appearance, and friction performance. |
| Sand Blasting | Creates a uniform matte surface texture, enhancing visual consistency or preparing parts for secondary coatings. |
| Brushing | Produces controlled linear surface textures, commonly used for visible cylindrical or rotational components. |
| Powder Coating | Applies a durable protective coating, offering enhanced corrosion resistance and a wide selection of color options. |
| Electroplating | Adds a thin metal layer to improve corrosion resistance, wear resistance, or electrical conductivity. |
| Black Oxide | A chemical conversion coating primarily used on steel parts to provide light corrosion protection and a uniform black finish. |
| Passivation | Enhances corrosion resistance of stainless steel parts by removing surface contaminants and free iron. |
| Heat Treatment | Modifies material properties to improve hardness, strength, or wear resistance based on functional requirements. |
CNC turning tolerances are tightly controlled to ensure repeatable accuracy for critical dimensions.
| Parameter | Specification |
|---|---|
| General Standards | ISO 2768-mk |
| Precision Tolerances | ±0.01 mm (critical features up to ±0.005 mm) |
| Maximum Part Size | Length up to 1000 mm, diameter up to 700 mm |
| Minimum Feature Size | 0.5 mm |
| Surface Finish (As Machined) | Ra 1.6–3.2 µm |
For global clients demanding accuracy, consistency and reliable export solutions, our CNC turning service delivers more than just parts—it delivers peace of mind.
We review your CAD files and provide practical feedback to improve manufacturability and reduce defect risks.
Critical features can be machined to ±0.005 mm, providing exceptional accuracy for mission-critical components.
Wide selection of metals, plastics, and finishing options to meet functional and aesthetic requirements.
Multi-stage inspections verify dimensions, appearance, and consistency for reliable, defect-free parts.
From single prototypes to large production runs, we adapt to your volume requirements while maintaining consistent quality.
We serve clients worldwide, offering engineering guidance and dependable shipping to ensure your project stays on track.
From design upload to delivery, get your precision CNC-turned parts through a smooth, reliable process.
Submit your 2D drawings or 3D CAD files along with material, tolerance, and surface finish requirements. Clear design input ensures accurate turning and faster evaluation.
Our engineers review your design and provide a detailed quotation and estimated lead time, usually within 24 hours.
Parts are machined to your specifications, with in-process inspections and final checks to ensure tight tolerances and consistent quality.
Finished components are carefully packed and shipped worldwide, ready for assembly or integration into your products.
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