Trusted by engineers, manufacturers, and global brands worldwide, with10000+ customers across 100+ countries and regions.
Precision CNC Turning Services for Complex Parts
Automation | Medical | Aerospace | Electronics | Automotive| Communications
Our CNC turning services deliver precision-manufactured cylindrical and rotational components for applications requiring tight tolerances and consistent dimensional accuracy. Using advanced CNC lathes and skilled machinists, we produce custom-turned parts with excellent surface finishes, structural integrity, and repeatability.
CNC turning is a subtractive manufacturing process that shapes material by rotating the workpiece while cutting tools remove excess material. This method is ideal for producing round or tubular parts such as shafts, bushings, pins, and threaded components that demand precise concentricity and smooth surface quality.
Advanced CNC Turning Capabilities
We support a full range of turning operations for both standard and complex geometries, including:
- OD & ID turning
- Facing, grooving, and parting
- Precision threads and tapers
- Boring and drilling
- Complex profiles and custom contours
Multi-axis CNC turning enables us to machine intricate features in a single setup, improving accuracy while reducing production time.
Efficient Production from Prototype to Mass Manufacturing
Our CNC turning solutions support rapid prototyping, small-batch production, and high-volume manufacturing. Streamlined machining processes and automated equipment ensure consistent quality and fast turnaround for even the most demanding components.
Through optimized tooling and machining strategies, we help reduce material waste and production costs while maintaining strict quality control standards.
CNC Turning Material Options
We support CNC turning across a broad spectrum of material categories to meet diverse functional and performance requirements. Our machining capabilities cover metallic materials, engineering plastics, advanced ceramics, and ultra-hard materials such as tungsten carbide.
This wide material compatibility enables us to manufacture components for applications ranging from lightweight and corrosion-resistant parts to high-strength, wear-resistant, and high-temperature environments.
Material selection is always aligned with the specific demands of the application, including mechanical strength, dimensional stability, thermal performance, and durability. Our team works closely with customers to ensure the chosen material balances performance, manufacturability, and cost-efficiency
| Image | Material | Typical Grades | Surface Finishes | Industries |
|---|---|---|---|---|
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Aluminum Alloys | 6061, 7075, 2024, 5052 | As-machined, Anodizing, Hard anodizing, Chromate conversion, Powder coating, Bead blasting, Polishing | Aerospace, Automotive, Electronics, Enclosures |
 |
Carbon Steel | 1018, 1045, 1060 | As-machined, Black oxide, Phosphate coating, Polishing | Industrial Machinery, Automation Equipment |
 |
Stainless Steel | 303, 304, 316, 17-4 PH | As-machined, Passivation, Electropolishing, Bead blasting, Polishing | Medical Devices, Food Processing Equipment, Marine |
 |
Copper | C101, C110 | As-machined, Polishing, Anti-oxidation treatment | Electrical Components, Thermal Management |
 |
Brass | C360, C385 | As-machined, Polishing, Bead blasting | Valves, Fittings, Precision Instrumentation |
 |
Bronze | C932, C954 | As-machined, Polishing | Bearings, Bushings, Wear Parts |
| Material | Typical | Surface Finishes | Industries |
|---|---|---|---|
| Tool Steel | D2, H13, A2 | As-machined, Heat treatment, Polishing, Nitriding | Mold & Die, Tooling |
| Titanium Alloys | Grade 2, Ti-6Al-4V | As-machined, Bead blasting, Polishing, Anodizing | Aerospace, Medical, Performance parts |
| Nickel Alloys | Inconel 625, 718 | As-machined, Polishing | Aerospace, Energy |
| Image | Material | Typical / Grades | Surface Finishes | Industries / Applications |
|---|---|---|---|---|
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Engineering Plastics | ABS, POM (Acetal), Nylon (PA), PC, PET, PPS | As-machined, Polishing, Vapor smoothing | Prototyping, Consumer products, Electronics housings |
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Specialty Engineering Plastics | Acetal (POM-C, POM-H), HDPE, LDPE, PBT | As-machined, Polishing, Vapor smoothing | Industrial parts, Packaging, Consumer goods |
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Nylon & Filled Nylon | PA6, PA66, Glass-filled Nylon, Carbon-filled Nylon | As-machined, Polishing | Gears, Bearings, Mechanical components |
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Food-Grade Plastics | HDPE, UHMW-PE, POM (FDA grade), PP, PC | As-machined, Polishing, Flame polishing | Food processing equipment, Containers, Gears, Valves, Medical device parts |
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Transparent Plastics | PMMA (Acrylic), PC (Polycarbonate), PETG | As-machined, Polishing, Flame polishing, Vapor smoothing | Display panels, Optical components, Protective covers, Lighting |
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Optical / High-Gloss Plastics | PMMA, Optical-grade PC, COC | Polishing, Flame polishing, Vapor smoothing | Lenses, Light guides, Medical optics |
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High-Performance Plastics | PEEK, PTFE, PPS, UHMW, LCP | As-machined, Polishing, Annealing | Medical devices, Chemical equipment, Semiconductor parts, Aerospace |
| Image | Material | Typical / Grades | Surface Finishes | Industries / Applications |
|---|---|---|---|---|
 |
Alumina (Al₂O₃) | 99%, 96%, 95% purity | Fine grinding, Precision polishing | Semiconductor, Insulation, Wear parts, Mechanical components |
|
Zirconia (ZrO₂) | 3Y-TZP, 8Y, Fully stabilized | Precision grinding, Polishing | Medical implants, Valves, Pump components, High-precision parts |
|
Silicon Nitride (Si₃N₄) | SN-101, SN-201, Gas pressure sintered | Precision grinding, Polishing | High-temperature bearings, Aerospace, Cutting tools |
|
Aluminum Nitride (AlN) | High purity, Sintered | Precision grinding, Polishing | Electronics, Heat sinks, Insulation |
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Silicon Carbide (SiC) | Reaction bonded, Sintered, Hot-pressed | Precision grinding, Diamond polishing | Wear-resistant components, High-temperature parts, Industrial tooling |
|
Tungsten Carbide (WC) | Cemented carbide, Cobalt bonded | Precision grinding, Polishing (limited) | Tooling, Mold & Die, Wear-resistant components |
CNC Turning Tolerances
CNC turning tolerances define the allowable dimensional variation of turned parts. Achievable tolerances depend on material type, part geometry, feature complexity, and surface finish requirements. Unless otherwise specified on the customer’s drawing, standard CNC turning tolerances apply. Tighter tolerances can be provided for critical features.
| Feature Type | Standard Tolerance | High-Precision Option |
|---|---|---|
| Outer diameters / shafts | ±0.03 mm (±0.0012 in) | ±0.01 mm (±0.0004 in) |
| Inner diameters / bores | ±0.03 mm (±0.0012 in) | ±0.01 mm (±0.0004 in) |
| Axial lengths / heights | ±0.05 mm (±0.002 in) | ±0.02 mm (±0.0008 in) |
| Roundness / cylindricity | 0.02 mm (0.0008 in) | 0.01 mm (0.0004 in) |
| Concentricity / runout | 0.03 mm (0.0012 in) | 0.01 mm (0.0004 in) |
| Thread tolerances | ISO / UNC / UNF standards | Custom tolerance available |
| Surface finish (Ra) | 1.6–3.2 μm (63–125 μin) | 0.8 μm (32 μin) or better |
These tolerances are suitable for most functional and structural CNC turned parts
Factors Affecting CNC TurningTolerances
Several factors influence achievable tolerances in CNC turning:
- Material stability and machinability
- Part diameter, length, and wall thickness
- Feature complexity and tool access
- Surface finish requirements and secondary operations
Our engineering team will review your design and provide manufacturability feedback if any tolerances may impact cost, lead time, or feasibility.
Precision & Quality You Can Trust
At HUB Machining, we ensure every part meets the highest standards. From material inspection to final measurement, our rigorous quality control process guarantees consistent, reliable results for your custom components.
Material Verification
Inspect raw materials to ensure compliance with specifications and traceability.
In-Process Inspection
Monitor each machining step with advanced measuring equipment to maintain precision.
First Article Inspection (FAI)
Verify the first part against design drawings and specifications to ensure production accuracy before full-scale manufacturing.
Final Testing & Certification
Conduct thorough dimensional checks, surface inspections, and testing before delivery, ensuring every part meets your expectations.
Multi-Industry Manufacturing Solutions for Global Customers
We serve customers worldwide with reliable manufacturing solutions across multiple industries, including aerospace, automotive, medical, and industrial automation. With efficient production and global logistics, parts can be delivered in as little as 5–10 days.
WHY HUB MACHINING?
Your Reliable Manufacturing Partner
Your Reliable Manufacturing Partner
NPI prototyping bridges early concepts to full-scale production.
Based on customer-provided designs, our team evaluates feasibility,
identifies risks, and validates performance.
Concept & Design Review
Your design, we review feasibility and manufacturability.
DFM feedback optimizes structure, tolerance, and lead time.
Rapid Prototyping & EVT
Fast prototypes validate function, fit, and assembly.
Design iterations are refined through EVT testing.
Pilot Run
Small-batch production verifies process stability and yield.
Quality and consistency are evaluated before scale-up.
Mass Production Launch
Validated processes enable stable, scalable manufacturing.
Consistent quality and reliable delivery are ensured.
Customer Success Case
HUB partners with companies across the automotive, aerospace, medical, electronics, and robotics industries, supporting projects at every stage—from early-stage prototyping to full-scale production. From individual innovators to Fortune 500 enterprises, we deliver trusted CNC machining solutions with precision, quality, and reliability worldwide.
Customer Reviews
“Excellent machining quality and tight tolerances. Parts fit perfectly right out of the box.”
Eric Thompson
“The surface finish exceeded our expectations — looks production-ready.”
Lukas Weber
“They helped us validate our design quickly with prototypes, and the transition to mass production was seamless.”
Julien Moreau
How To Work With US
01
Upload Files
Upload your 2D/3D design files and share key project details.
02
DFM Review
Our engineers optimize your design for manufacturability, quality, and cost efficiency.
03
Confirm & Produce
Approve the quote and start precision machining with our experienced team.
04
Receive Parts
Get high-quality custom parts delivered straight to your door, ready to use.
FAQS
Yes. We can provide various inspection documents upon request, including First Article Inspection (FAI) reports, dimensional inspection reports, material certificates, Certificates of Conformance (CoC), and other quality documentation to support your project and compliance requirements.
We use a wide range of precision inspection equipment, including Coordinate Measuring Machines (CMM), digital calipers, micrometers, height gauges, thread gauges, pin gauges, bore gauges, and other measuring instruments. Our inspection process ensures that every component meets the required dimensional and quality standards.
Yes. We provide hardware installation services as part of our assembly process. We can install screws, nuts, bolts, threaded inserts, rivets, PEM fasteners, standoffs, pins, and other standard hardware according to your drawings and assembly specifications, ensuring secure and accurate installation.
Anodizing is an electrochemical process that creates a durable oxide layer on the surface of aluminum, improving corrosion resistance, wear resistance, and hardness while maintaining a metallic appearance. Powder coating applies a protective polymer coating that provides excellent durability, impact resistance, and a wide range of color options. Anodizing is suitable only for aluminum, while powder coating can be applied to aluminum, steel, and other metals. The best choice depends on your application, performance requirements, and desired appearance.
Yes. We offer anodizing in a variety of standard colors, including clear (natural), black, red, blue, gold, and other custom colors, depending on the material and project requirements. Anodizing not only enhances the appearance of aluminum parts but also improves corrosion resistance, wear resistance, and surface hardness. If you have specific color requirements, we can match them as closely as possible.
The best surface finish depends on your application, material, operating environment, and appearance requirements. For example, anodizing improves corrosion resistance for aluminum, powder coating provides a durable decorative finish, while plating enhances wear resistance and electrical conductivity. Our engineering team can recommend the most suitable finishing process based on your functional and aesthetic requirements.
Yes. We offer a variety of RoHS-compliant surface finishing options, including anodizing, powder coating, passivation, zinc plating, electroless nickel plating, and other environmentally compliant treatments. If your project requires RoHS, REACH, or other regulatory compliance, please let us know during the quotation stage.
Surface finish quality is inspected through visual examination, dimensional verification, and process-specific quality checks. We evaluate appearance, coating uniformity, color consistency, adhesion, and surface defects. When required, we also verify surface roughness and coating thickness using professional inspection equipment to ensure compliance with customer specifications.
Some surface finishing processes can slightly affect part dimensions by adding or removing a thin layer of material. Processes such as anodizing, plating, and powder coating may change surface thickness, while polishing can remove a small amount of material. If your project has critical tolerances, our engineering team will consider the finishing process during manufacturing to ensure the final part meets your specifications.
Yes. We understand the importance of protecting your intellectual property. We are happy to sign a Non-Disclosure Agreement (NDA) before reviewing your drawings or project information. All customer data is handled with strict confidentiality throughout the entire manufacturing process.
All parts are carefully inspected and securely packaged before shipment. Depending on the product type, we use protective wrapping, foam inserts, individual bags, custom cartons, and export-grade wooden crates to ensure the parts arrive safely and in excellent condition.
We accept secure payment methods, including bank transfer (T/T) and PayPal for eligible orders. Payment terms may vary depending on the project scope and order value. Please contact our sales team for specific payment arrangements.
Lead times depend on the manufacturing process, material, quantity, and part complexity. Prototype orders are typically completed within 3–10 business days, while production orders generally require 2–6 weeks. A confirmed lead time will be provided with every quotation.
Yes. We regularly ship CNC machined parts to customers in North America, Europe, Australia, and other global markets. Parts are carefully packaged to prevent damage during transportation, and we support express, air, and sea freight options.
Quality is controlled throughout the manufacturing process, from incoming material inspection to in-process checks and final inspection. We use precision measuring equipment such as CMMs, calipers, micrometers, and height gauges to verify critical dimensions before shipment.
We provide a full range of surface finishing services, including anodizing, powder coating, plating, polishing, sandblasting, brushing, painting, passivation, black oxide, and laser marking to meet both functional and cosmetic requirements.
Yes. Our engineers review every project and provide DFM recommendations to improve manufacturability, reduce machining time, optimize material usage, and lower production costs without compromising product performance.
Most quotations are provided within 24 hours after receiving your drawings and project requirements. Complex assemblies or high-volume projects may require additional engineering review.
We accept most standard CAD formats, including STEP (.stp), IGES (.igs), X_T, Parasolid, SolidWorks, DWG, DXF, STL, and PDF drawings. If you are unsure about your file format, simply send it to our engineering team for review.
Yes. We specialize in both rapid prototyping and full-scale production. Whether you need a single prototype, low-volume batches, or mass production, we can provide flexible manufacturing solutions with consistent quality.
Standard machining tolerance is typically ±0.01 mm. For precision components, tighter tolerances can be achieved depending on the material, geometry, and manufacturing process. Our engineering team reviews each project to ensure the required accuracy is met.
We machine a wide variety of materials, including aluminum, stainless steel, carbon steel, brass, copper, titanium, magnesium, POM, ABS, Nylon, PEEK, PTFE, acrylic, and other engineering plastics. Material recommendations are also available based on your application.
HUB Machining provides comprehensive CNC machining services, including CNC milling, CNC turning, 5-axis machining, Swiss machining, EDM, and precision grinding. We support both rapid prototyping and high-volume production for a wide range of industries.
Yes. We are capable of assembling multi-component and complex sub-assemblies, ensuring correct alignment and proper assembly, followed by quality inspection.
We use professional packaging and secure fixation methods. All shipped assemblies come with a quality inspection report so you can perform final testing upon receipt.
Yes. We offer protective packaging, labeling, and ready-for-shipment solutions to ensure your parts arrive safely.
Yes. We are capable of assembling multi-component and complex sub-assemblies, ensuring correct alignment and proper assembly, followed by quality inspection.
We provide assembly services and ensure every component is assembled according to design specifications. All assembled parts undergo quality inspection before shipment, but final functional testing is performed by you.
Our inspection process covers:
- Dimensional and tolerance checks
- Assembly correctness verification
- Visual defect inspection
- Component integrity confirmation
Yes. We provide quality-approved assemblies, but final functional testing is performed by the customer to ensure the product works as intended.
Any non-conforming parts are reported immediately. We work with the customer to resolve the issue or rework the components to meet specifications before shipping.
