CNC Turning Service
Xtproto is a professional CNC turning manufacturer. We specialize in rapid prototyping of metal and plastic parts, as well as small-to-large volume production, with delivery times as short as one day.
Custom CNC Turning Services
XTPROTO provides precision CNC turning services for metal and plastic parts, supporting everything from rapid prototyping to high-volume production.Our advanced CNC lathes and turning centers produce high-precision cylindrical parts with tight tolerances and excellent surface finishes. With live tooling and multi-axis capabilities, we can machine complex features such as axial and radial holes, grooves, slots, threads, and flats in a single setup—reducing machining time and cost.From simple shafts to complex turned components, Xtproto delivers reliable CNC turned parts with fast lead times, competitive pricing, and scalable production capacity, serving industries including aerospace, automotive, medical, robotics, and industrial equipment.
Our Factory
At XTPROTO, our CNC turning parts are produced in-house using the latest lathes and modern automation. From metals to plastics, we deliver high-precision components with tight tolerances and smooth finishes.
We follow strict quality standards (ISO9001:2000), inspecting every part from raw material to final product. With advanced equipment, skilled engineers, and robust process control, we provide reliable prototypes and production runs. Our automated production lines ensure fast, accurate, and consistent results, bringing your designs to life efficiently.
CNC Turning Capabilities
Achieving perfect concentricity and superior surface finishes on complex cylindrical parts remains a persistent challenge, as traditional turning often suffers from dimensional drift and the inefficiencies of multiple setups. To resolve these manufacturing bottlenecks, Xtproto leverages advanced CNC lathes and multi-axis turn-mill centers capable of handling diameters from under 10 mm to over 400 mm. Our integration of live tooling and sub-spindles allows us to execute internal/external threading, grooving, and axial/radial drilling in a single synchronized operation, eliminating the cumulative errors of manual handling. By providing a seamless transition from rapid prototyping to high-volume production, we empower our customers to bypass long lead times and high scrap rates, delivering precision-turned components with tight tolerances and assembly-ready finishes that meet the most rigorous industrial standards.
CNC Turning For Prototypes To Production
XTPROTO provides precision CNC turning services from rapid prototyping to low- and high-volume production, delivering tight tolerances, consistent quality, and fast lead times for metal and plastic parts.
CNC Turning Rapid Machining
Low-Volume CNC Turning
High-Volume CNC Turning
Advanced Material Capabilities & Global Sourcing
Sourcing specialized materials or balancing performance with cost often becomes a bottleneck in project development. At XTPROTO, we eliminate these constraints by providing an extensive inventory of over 50+ industrial-grade metals and plastics. We understand that each material—from aerospace-grade titanium to high-performance engineering polymers—requires specific feed rates and tooling geometries to avoid internal stress and surface defects. Our engineering team ensures that whether you require high-strength alloys for structural integrity or low-friction plastics for mechanical wear, your parts are machined from the optimal grade. If a specific material is not listed, our global sourcing network allows us to procure custom substrates tailored to your unique technical specifications.
Expert Engineering
Poorly optimized toolpaths and overlooked Design for Manufacturing (DFM) flaws often lead to excessive tool wear, unstable tolerances, and inflated production costs in precision turning. Our engineering team bridges this gap by providing comprehensive DFM feedback at the quoting stage, utilizing advanced CAM programming to refine geometries for maximum machining efficiency. We specialize in developing custom workholding and specialized jigging for thin-walled or complex cylindrical components, ensuring stability where standard fixtures fail. By meticulously calculating chip loads and cutting speeds for high-performance alloys and engineering plastics, our engineers translate your complex schematics into a stable, repeatable manufacturing process. This technical oversight ensures higher yield rates, reduced scrap, and significant cost savings, transforming your most challenging turning projects into streamlined production realities.
CNC Turning Quality
At XTPROTO, every CNC turned part is manufactured with precision and care, following strict international standards such as IATF 16949:2016, ISO 9001:2015, AS 9100D, ISO 14001:2015, and OHSAS 18001:2007 / ISO 45001:2018. Our commitment to quality is integrated into every step of the process, from material inspection to final part verification.
We combine advanced CNC lathes and turn-mill centers with skilled machinists who understand both the design intent and optimal machine use. Coupled with rigorous quality assurance practices and ongoing machine maintenance, this ensures every part meets specifications and delivers reliable performance for demanding applications.
Whether you are producing prototypes, small batches, or high-volume CNC turned parts, Xtproto’s focus on precision, process control, and continuous improvement guarantees components you can trust.
CNC Turning Tolerances
XTPROTO delivers high-precision CNC turning parts with standard tolerances of ±0.1 mm and precision tolerances up to ±0.005 mm, balancing cost efficiency and accuracy for both general and high-performance applications.
Feature | Capability |
Maximum part size | 200 × 500 mm (7.9 × 19.7 in) |
Minimum part size | 2 × 2 mm (0.079 × 0.079 in) |
Minimum feature size | Ø 0.5 mm |
Linear tolerance | ±0.025 mm (±0.001 in) |
Hole diameter (reamed) | ±0.025 mm |
Shaft diameter | ±0.025 mm |
Standard general tolerance | ±0.1 mm |
Angular tolerance | ±0.5° |
Additional Machining Capabilities
- Threading & tapping:Ø1.5–5 mm depth up to 3× diameter; Ø5 mm+ depth up to 4–6× diameter
- Edge condition:Sharp edges are removed by default with chamfers or radii
- Marking:Laser marking available for text or part identification
Tolerance requirements may vary depending on material, geometry, and machining process, and tighter tolerances can be achieved upon request.
CNC Turning Materials
XTPROTO offers a wide selection of metals and plastics for CNC turning, ensuring the right material for prototypes, small batches, or full production.
Metals & Alloys | Engineering Plastics | Specialty & Custom |
Aluminum: 2000, 5000, 6000, 7000 Series | High-Performance: POM (Delrin), PEEK, PTFE | Titanium: Gr 2, Gr 5 (Ti-6Al-4V) |
Stainless Steel: 303, 304, 316, 17-4 PH | General: ABS, PC, Nylon, Polyethylene | Tool Steels: D2, O1, A2, H13 |
Copper & Brass: C360, Pure Copper, Bronze | Transparent: Acrylic (PMMA), Clear PC | Carbon Fiber & Composites |
Alloy Steel: 4140, 4340, Low-Carbon Steel | Thermosets: FR4, Bakelite, G10 | Custom Material Sourcing |
CNC Turning Surface Finishes
| Finish & Description | Typical Use |
| As machined – Raw lathe finish | Functional parts where appearance is not critical |
| Bead blasting – Uniform matte texture, reduces tool marks | Aesthetic & functional consistency |
| Brushed finish – Fine linear texture | Scratch resistance and premium look |
| Polishing – Smooths surface, enhances shine | Decorative or high-gloss parts |
| Electropolishing – Chemically smooths surface, improves corrosion resistance | Stainless steel and functional parts |
| Anodizing – Improves corrosion resistance, can be colored | Aluminum parts |
| Alodine / Chromate – Enhances corrosion resistance & paint adhesion | Aluminum alloys |
| Black oxide – Rust protection, reduces glare | Ferrous materials |
| Electroplating – Adds wear resistance, corrosion protection, or conductivity | Metal parts requiring durability |
| Heat treatment – Adjusts hardness and strength | Functional performance |
| Custom coatings – Powder coating, specialty colors, or functional surface treatments | Specialized applications |
Surface finish options may vary depending on material, part geometry, and application requirements. Consult our engineers when requesting a quote to select the most suitable finish for your CNC turned parts.
CNC Turned Parts
Precision You Can Trust
With CNC turning, every part is machined to tight tolerances and consistent quality, ensuring your components perform reliably in demanding applications.
Why Choose XTPROTO for CNC Turning?
What Is Turning And How It Works
Turning is a CNC machining process that shapes parts by rotating a workpiece while a cutting tool removes material. It’s ideal for cylindrical parts from round, square, or hex bars, producing precise outer (OD) and inner diameters (ID).
Modern CNC lathes can add features like grooves, threads, and holes, making turning versatile for everything from simple shafts to complex geometries. In short, turning spins the material and cuts it to shape, forming a core method in CNC machining for high-precision parts.
Advantages of CNC Turning
- High Precision – Tight tolerances and consistent quality for round parts.
- Fast Production – Automated lathes enable rapid turnaround and repeatable results.
- Design Flexibility – Easy to reprogram, allowing quick design changes.
- Material & Cost Efficiency – Works with metals and plastics, minimizes waste, and reduces labor costs.
FAQs:CNC Turning
Why is material selection critical for turning?
How do you achieve precision threads on turning centers?
What causes chatter in CNC turning and how is it prevented?
Request Your Free CNC Machining Quote Today
After receiving your drawings, our engineers will analyze your custom CNC machining parts right away. We actively work with you to clarify all details before providing a quote that is both economical and accurate.