Custom CNC Turning Services for Precision Cylindrical Parts
We provide CNC turning services for shafts, bushings, housings, and rotational parts with tight tolerances and consistent quality—from prototypes to production.
- CNC Turning for Shafts & Cylindrical Components
- Tight Tolerances up to ±0.001 inch
- Wide Diameter Range for Medium to Large Turned Parts
- ISO 9001:2015 Certified
- Fast Turnarounds (Within 12-24 Hours)
Our CNC Turning Solutions for Custom Parts
Prototype CNC Turned Parts
Quickly bring your designs to life with our precision CNC turning services. We deliver high-quality metal and plastic prototypes for rapid design validation, functional testing, and product refinement. Ideal for custom parts and prototype development before full-scale production.
Low-Volume & Bridge Production
Whether you need a few custom CNC-turned parts or small-batch production runs, our CNC lathe services provide consistent, tight-tolerance components with fast lead times. Perfect for low-volume manufacturing, bridge production, or custom turning projects requiring flexibility and reliable quality.
High-Volume CNC Turning Production
Our advanced CNC turning process and multi-axis CNC lathes enable high-volume production of metal and plastic parts with strict tolerance control. From thousands of identical components to complex turned parts, we meet your production demands efficiently and at competitive pricing without compromising precision.
Our CNC Turning Materials
We are offering a wide range of CNC turning materials, from metal materials like aluminum, stainless steel, and brass to plastics like PEEK, nylon, and ABS, with 100+ materials options that are perfect for prototypes and production parts.
ABS
A tough, low-cost engineering plastic with excellent machinability, impact resistance, and dimensional stability. Commonly used for prototypes, enclosures, and automotive parts.
Color:
Red
Price:
$ $ $
Lead Time:
<7 Days
Max Part Size:
2000×1500×300 mm
Min Part Size:
/
Tolerances:
±0.001 in
Delrin
Known for high strength, stiffness, and low friction, Delrin is ideal for precision parts like gears, bearings, and rollers requiring wear resistance and stability.
Color:
Red
Price:
$ $ $
Lead Time:
<7 Days
Max Part Size:
2000×1500×300 mm
Min Part Size:
/
Tolerances:
±0.001 in
HDPE
Lightweight and chemically resistant, HDPE is easy to machine and widely used for tanks, piping, and food-grade applications. It resists moisture and offers good impact strength.
Color:
Red
Price:
$ $ $
Lead Time:
<7 Days
Max Part Size:
2000×1500×300 mm
Min Part Size:
/
Tolerances:
±0.001 in
HDPE
More flexible than HDPE, LDPE is valued for its impact resistance and chemical inertness. Suitable for soft components, liners, and lightweight parts.
Color:
Red
Price:
$ $ $
Lead Time:
<7 Days
Max Part Size:
2000×1500×300 mm
Min Part Size:
/
Tolerances:
±0.001 in
Nylon (PA)
A versatile engineering plastic with high mechanical strength, wear resistance, and good machinability. Commonly found in bushings, gears, and structural parts.
Color:
Red
Price:
$ $ $
Lead Time:
<7 Days
Max Part Size:
2000×1500×300 mm
Min Part Size:
/
Tolerances:
±0.001 in
PEEK
A high-performance, heat-resistant polymer with outstanding strength, chemical resistance, and dimensional stability. Ideal for aerospace, medical, and high-heat applications.
Color:
Red
Price:
$ $ $
Lead Time:
<7 Days
Max Part Size:
2000×1500×300 mm
Min Part Size:
/
Tolerances:
±0.001 in
PEI
An amber, high-strength plastic offering excellent heat resistance, flame retardancy, and electrical insulation. Often used in medical devices, aerospace, and electronics.
Color:
Red
Price:
$ $ $
Lead Time:
<7 Days
Max Part Size:
2000×1500×300 mm
Min Part Size:
/
Tolerances:
±0.001 in
PET
Offers excellent wear resistance, low moisture absorption, and good dimensional stability. Ideal for mechanical parts, food-safe applications, and precision components.
Color:
Red
Price:
$ $ $
Lead Time:
<7 Days
Max Part Size:
2000×1500×300 mm
Min Part Size:
/
Tolerances:
±0.001 in
PMMA
A lightweight, transparent plastic with good UV resistance and optical clarity. Frequently used for display cases, light covers, and optical components.
Color:
Red
Price:
$ $ $
Lead Time:
<7 Days
Max Part Size:
2000×1500×300 mm
Min Part Size:
/
Tolerances:
±0.001 in
Polycarbonate
Exceptionally tough and transparent, polycarbonate offers high impact resistance and heat tolerance. Perfect for safety enclosures, protective covers, and medical equipment.
Color:
Red
Price:
$ $ $
Lead Time:
<7 Days
Max Part Size:
2000×1500×300 mm
Min Part Size:
/
Tolerances:
±0.001 in
Polypropylene (PP)
Lightweight, chemically resistant, and cost-effective. Suitable for tanks, lab equipment, and applications requiring good chemical inertness.
Color:
Red
Price:
$ $ $
Lead Time:
<7 Days
Max Part Size:
2000×1500×300 mm
Min Part Size:
/
Tolerances:
±0.001 in
Polystyrene
A rigid, lightweight plastic with good machinability and electrical insulation properties. Used for models, enclosures, and light-duty applications.
Color:
Red
Price:
$ $ $
Lead Time:
<7 Days
Max Part Size:
2000×1500×300 mm
Min Part Size:
/
Tolerances:
±0.001 in
PPSU
A tough, high-temperature plastic offering excellent hydrolysis resistance, ideal for medical, aerospace, and plumbing components requiring repeated sterilization.
Color:
Red
Price:
$ $ $
Lead Time:
<7 Days
Max Part Size:
2000×1500×300 mm
Min Part Size:
/
Tolerances:
±0.001 in
PSU
High heat resistance, good dimensional stability, and excellent chemical resistance make PSU suitable for fluid handling, medical, and electrical components.
Color:
Red
Price:
$ $ $
Lead Time:
<7 Days
Max Part Size:
2000×1500×300 mm
Min Part Size:
/
Tolerances:
±0.001 in
PTFE (Teflon)
Renowned for its non-stick surface, chemical resistance, and wide operating temperature range. Used for seals, gaskets, and parts needing low friction and high purity.
Color:
Red
Price:
$ $ $
Lead Time:
<7 Days
Max Part Size:
2000×1500×300 mm
Min Part Size:
/
Tolerances:
±0.001 in
PVC
A versatile, rigid plastic with good chemical resistance, flame retardancy, and cost-efficiency. Commonly used for piping, fittings, and industrial enclosures.
Color:
Red
Price:
$ $ $
Lead Time:
<7 Days
Max Part Size:
2000×1500×300 mm
Min Part Size:
/
Tolerances:
±0.001 in
PC
A durable, transparent thermoplastic with outstanding impact resistance, heat tolerance, and dimensional stability. Ideal for machine guards, housings, and optical covers.
Color:
Red
Price:
$ $ $
Lead Time:
<7 Days
Max Part Size:
2000×1500×300 mm
Min Part Size:
/
Tolerances:
±0.001 in
POM
A durable, transparent thermoplastic with outstanding impact resistance, heat tolerance, and dimensional stability. Ideal for machine guards, housings, and optical covers.
Color:
Red
Price:
$ $ $
Lead Time:
<7 Days
Max Part Size:
2000×1500×300 mm
Min Part Size:
/
Tolerances:
±0.001 in
PBT
An engineering thermoplastic with good dimensional stability, electrical insulation, and chemical resistance. Common in automotive connectors and electrical components.
Color:
Red
Price:
$ $ $
Lead Time:
<7 Days
Max Part Size:
2000×1500×300 mm
Min Part Size:
/
Tolerances:
±0.001 in
PPA
A high-performance nylon with elevated heat and chemical resistance, making it suitable for automotive, aerospace, and industrial fluid system parts.
Color:
Red
Price:
$ $ $
Lead Time:
<7 Days
Max Part Size:
2000×1500×300 mm
Min Part Size:
/
Tolerances:
±0.001 in
PAI
Offers exceptional strength, wear resistance, and high-temperature stability. PAI is used in demanding aerospace, semiconductor, and medical applications.
Color:
Red
Price:
$ $ $
Lead Time:
<7 Days
Max Part Size:
2000×1500×300 mm
Min Part Size:
/
Tolerances:
±0.001 in
PPS
A high-temperature, chemical-resistant plastic with excellent dimensional stability. Often used in automotive, electronics, and fluid handling systems.
Color:
Red
Price:
$ $ $
Lead Time:
<7 Days
Max Part Size:
2000×1500×300 mm
Min Part Size:
/
Tolerances:
±0.001 in
UPE
Extremely tough with outstanding wear and impact resistance. UPE is ideal for liners, wear strips, and parts exposed to abrasion and chemical exposure.
Color:
Red
Price:
$ $ $
Lead Time:
<7 Days
Max Part Size:
2000×1500×300 mm
Min Part Size:
/
Tolerances:
±0.001 in
Bakelite
One of the first industrial plastics, Bakelite offers excellent electrical insulation, heat resistance, and rigidity. Common in electrical panels, switches, and legacy components.
Color:
Red
Price:
$ $ $
Lead Time:
<7 Days
Max Part Size:
2000×1500×300 mm
Min Part Size:
/
Tolerances:
±0.001 in
FR-4
A glass-reinforced epoxy material prized for its excellent mechanical strength, electrical insulation, and flame resistance. Widely used in PCB substrates and insulating applications.
Color:
Red
Price:
$ $ $
Lead Time:
<7 Days
Max Part Size:
2000×1500×300 mm
Min Part Size:
/
Tolerances:
±0.001 in
Aluminum
Lightweight yet strong, aluminum offers excellent machinability, corrosion resistance, and thermal/electrical conductivity. Common grades like 6061 and 7075 balance cost and performance, while anodizing enhances surface durability, making aluminum ideal for aerospace, automotive, and electronic housings
Color:
Red
Price:
$ $ $
Lead Time:
<7 Days
Max Part Size:
2000×1500×300 mm
Min Part Size:
/
Tolerances:
±0.001 in
Brass
An easy‑machining copper–zinc alloy, brass provides good corrosion resistance, electrical and thermal conductivity, and a premium gold‑tone finish. Frequently used for decorative hardware, valves, gears, and fittings
Color:
Red
Price:
$ $ $
Lead Time:
<7 Days
Max Part Size:
2000×1500×300 mm
Min Part Size:
/
Tolerances:
±0.001 in
Copper
Pure, soft, and highly conductive, copper is favored for heat sinks, electrical contacts, and plumbing components. Its excellent machinability and thermal performance come at a higher cost due to raw material prices.
Color:
Red
Price:
$ $ $
Lead Time:
<7 Days
Max Part Size:
2000×1500×300 mm
Min Part Size:
/
Tolerances:
±0.001 in
Stainless Steel
Stainless steels (types 303, 304, 316) offer superior strength, corrosion resistance, and aesthetic finish. Though harder to machine than aluminum or brass, it’s ideal for medical, marine, food‑grade, and architectural parts
Color:
Red
Price:
$ $ $
Lead Time:
<7 Days
Max Part Size:
2000×1500×300 mm
Min Part Size:
/
Tolerances:
±0.001 in
Steel Alloy
Alloy steels (e.g., 4140, 4340) are engineered for enhanced toughness, wear resistance, and load‑bearing capacity. Common in shafts, gears, and structural parts, they deliver strength but may require tougher tooling.
Color:
Red
Price:
$ $ $
Lead Time:
<7 Days
Max Part Size:
2000×1500×300 mm
Min Part Size:
/
Tolerances:
±0.001 in
metal Steel Mild (Low Carbon)
An economical and weldable choice, mild carbon steel offers reliable strength and toughness. It’s popular in general‑purpose parts and industrial applications, often surface‑treated to prevent rust.
Color:
Red
Price:
$ $ $
Lead Time:
<7 Days
Max Part Size:
2000×1500×300 mm
Min Part Size:
/
Tolerances:
±0.001 in
Titanium
Known for its exceptional strength‑to‑weight ratio, toughness, and corrosion resistance, titanium excels in aerospace, medical, and high‑performance applications. Machinability is more challenging, requiring specialized tooling despite its premium benefits
Color:
Red
Price:
$ $ $
Lead Time:
<7 Days
Max Part Size:
2000×1500×300 mm
Min Part Size:
/
Tolerances:
±0.001 in
Bronze
Copper‑tin‑based bronze—especially aluminum or phosphor variants—is prized for wear resistance, strength, and corrosion resistance. Commonly used in bushings, bearings, gears, and marine components
Color:
Red
Price:
$ $ $
Lead Time:
<7 Days
Max Part Size:
2000×1500×300 mm
Min Part Size:
/
Tolerances:
±0.001 in
Zinc
Zinc and its alloys are easy to cast and machine, offering good corrosion resistance and dimensional accuracy. Ideal for die‑cast parts, fittings, and corrosion‑resistant components with fine detail.
Color:
Red
Price:
$ $ $
Lead Time:
<7 Days
Max Part Size:
2000×1500×300 mm
Min Part Size:
/
Tolerances:
±0.001 in
Iron
Including grey and ductile iron, iron is valued for its strength, rigidity, wear resistance, and vibration damping. Commonly used in machinery frames, engine blocks, and heavy‑duty components.
Color:
Red
Price:
$ $ $
Lead Time:
<7 Days
Max Part Size:
2000×1500×300 mm
Min Part Size:
/
Tolerances:
±0.001 in
Why Choose ProleanMFG for CNC Turning Services
Precision & Consistent CNC Turning Quality
Our CNC turning services focus on producing high-precision cylindrical parts with excellent concentricity, roundness, and surface finishes.
With ISO 9001–certified quality control, CMM inspection, and dimensional reports available upon request, we ensure consistent quality across prototypes and production runs.
Efficient Lead Times for Turned Parts
CNC turning is an efficient process for producing rotational parts with stable quality and repeatability.
By minimizing setups and secondary operations, we help shorten lead times while maintaining tight dimensional control from prototype to production.
Engineering Support for CNC Turning
Our engineers review your drawings and CAD models to optimize designs for CNC turning.
We provide practical DFM feedback on tolerances, feature geometry, and material selection to improve machinability, reduce cost, and ensure reliable production.
Prototype to Production CNC Turning
We support CNC turning from single prototypes to low- and high-volume production.
Whether for design validation, pilot runs, or long-term manufacturing, our turning processes deliver stable quality and repeatability across different order volumes.
Turning-Compatible Materials & Finishes
We machine a wide range of metals and engineering plastics suitable for CNC turning, including aluminum, carbon steel, stainless steel, brass, and selected plastics.
Surface finishes are available based on part function and application requirements.
Excellent Concentricity & Surface Finish
CNC turning delivers superior concentricity, roundness, and surface finishes for cylindrical components.
This makes it ideal for shafts, bushings, sleeves, and housings where rotational accuracy and smooth surfaces are critical.
CNC Turning Tolerances & Standards
We offer CNC turning services with standard tolerances of ±0.1mm and tight tolerances up to ±0.005mm. All CNC-turned parts meet ISO 2768-m for metals and ISO 2768-c for plastics, ensuring precise, reliable results for prototypes and production parts.”
| Feature | CNC Turning Capability |
|---|---|
| Max Turning Diameter | Ø300 mm |
| Max Turning Length | 1000 mm |
| Min Turning Diameter | Ø5 mm |
| General Tolerance | ISO 2768-m (metals), ISO 2768-c (plastics) |
| Achievable Tolerance | ±0.025 mm (±0.001 in), per drawing & geometry |
| Typical Concentricity | ≤ 0.02 mm |
| Min Wall Thickness | 0.5 mm (material dependent) |
| Surface Finish (As Machined) | Ra 3.2 µm (125 µin) or better |
| Secondary Operations | Drilling, tapping, grooving, simple milling |
| Inspection | CMM inspection & dimensional reports available |
Get More Tips With Our Complete Design Guide
Our CNC Turning Surface Finishing
We offer a range of surface finishes to enhance the look, durability, and performance of your CNC turned parts. From improving corrosion resistance to reducing surface roughness and removing tool marks, our finishing options ensure your parts meet both functional and aesthetic needs.
 | As-Machined | The default finish with visible tool marks. Cost-effective for functional parts or prototypes where appearance is secondary. |
 | Fine Machining (Ra 0.8μm) | Offers a smoother, more refined finish than standard as-machined. Needed for parts with tighter tolerance & better aesthetics. |
 | Bead Blasting / Sand Blasting | Matte, uniform texture for improved surface look. Ideal for visual parts or preparation before painting/anodizing. |
 | Brushed Finish | Satin surface texture. Looks premium and hides fingerprints. |
 | Polishing | High-gloss mirror finish. Used where aesthetics or friction reduction matters. |
 | Anodizing (Type II & III) | Durable, corrosion-resistant oxide layer. Offers color and improved surface hardness. Type III provides harder coatings. |
 | Powder Coating | Thick, durable decorative coating. Offered in various gloss levels. |
 | Black Oxide | Provides a matte black corrosion-resistant finish. Low-cost and non-dimensional. |
 | Electroless Nickel Plating | Uniform coating even on complex geometries. Enhances corrosion resistance and wear protection. |
 | Electroplating (Nickel, Zinc, Silver, Gold) | Decorative + functional coatings. Enhances corrosion resistance and conductivity (e.g., silver/gold). |
 | Alodine (Chromate Conversion) | Prepares aluminum for painting, improves corrosion resistance without affecting electrical conductivity. |
 | Chem Film / Chromate Conversion Coating | Like Alodine, but a broader term. Preps surfaces for painting or adds light corrosion protection. |
Our Ordering Process
1
Upload Your CAD File
Securely upload your part design to our online system.
2
Select Specs & Lead Time
Choose your materials, finishes, and preferred delivery time to match your project needs.
3
Get a Fast CNC Quote
Without too much waiting, receive a fast, accurate quote for custom parts manufacturing.
4
Manufacturing/Production Begins Immediately
We assign the best-fit CNC milling centers and start rapid production of your parts.
5
Strict Quality Control
Every part passes through product quality checks to meet the International ISO standards.
6
Fast & Reliable Delivery
We make sure to deliver your precision CNC parts safely packaged and shipped on time.
What is CNC Turning and How Does It Work?
CNC turning is a subtractive manufacturing process that creates precise cylindrical parts by rotating a workpiece against computer-controlled cutting tools. Using a CNC lathe, the process begins with a CAD design, converted into a machining program that controls tool movement and cutting speed.
As the material spins in the chuck, cutting tools perform operations like facing, threading, drilling, and boring to shape the part. CNC turning is ideal for producing prototypes, custom parts, and high-volume components with tight tolerances and consistent quality across industries like automotive, aerospace, and medical.
Types of CNC Lathes
CNC lathes come in several types, with the most widely used being 2-axis CNC lathes and Swiss-type CNC lathes. Standard 2-axis lathes rotate a workpiece while stationary cutting tools shape it along two axes, ideal for producing simple cylindrical and threaded parts.
Swiss-type CNC lathes are designed for high-precision, slender, and complex parts. They hold the material with a guide bushing, allowing cutting tools to work very close to the point of support, reducing deflection. This setup makes them perfect for long, narrow parts and micromachining applications. Many Swiss lathes also feature live tooling, enabling additional operations like milling and drilling in a single setup, improving accuracy and reducing production time for complex CNC-turned components.
Advantages of CNC Turning
CNC turning services offer several valuable advantages for producing high-precision cylindrical and custom machined parts. Here’s why it’s a preferred choice across industries:
⦁ Exceptional Precision: CNC turning machines consistently achieve tight tolerances essential for components that demand flawless fit and function in complex assemblies.
⦁ High Efficiency & Speed: Once programmed, CNC lathes produce parts rapidly with reliable, repeatable quality, reducing production time and increasing throughput.
⦁ Versatile for Prototypes and Production: Ideal for everything from rapid prototyping to low and high-volume production runs, with fast reprogramming for different part designs.
⦁ Cost-Effective Production: Automation minimizes labor, reduces human error, and cuts manufacturing costs, making it a smart choice for both custom parts and large-scale orders.
⦁ Supports a Wide Range of Materials: CNC turning works with various materials, including aluminum, stainless steel, brass, titanium, and plastics, offering flexibility for diverse applications.
⦁ Excellent Repeatability: Perfect for producing large quantities of identical CNC-turned parts without compromising on accuracy.
⦁ Safer Manufacturing Process: Fully enclosed, automated machining enhances workplace safety by limiting operator interaction.
Applications of CNC Turning
CNC turning services are widely used across industries to manufacture precision components where accuracy, durability, and tight tolerances are crucial. Common applications include:
⦁ Shafts: Critical components in motors, gear systems, and machines requiring precise diameters and smooth finishes.
⦁ Flanges: Used to securely connect pipes, valves, and pumps, demanding perfect alignment and sealing surfaces.
⦁ Bushings & Sleeves: Provide low-friction, durable surfaces for shafts and other moving parts, requiring accurate internal dimensions.
⦁ Pins: Essential for aligning and securing mechanical components, often produced with fine tolerances.
⦁ Knobs & Dials: Functional and aesthetic elements in electronic devices and equipment, where precision and visual finish matter.
⦁ Wheels & Rollers: Integral to conveyor systems and machinery, demanding consistent shape, balance, and surface finish.
⦁ Custom Turned Parts: For industries like automotive, aerospace, medical devices, and industrial automation, where high-performance, reliable parts are non-negotiable.
CNC Turning Design Guidelines & Capabilities
Enhance part quality, reduce production time, and design smarter with our CNC turning guidelines. Download the PDF now!
Industries We Are Serving
We deliver high-precision CNC-turned parts for every industry, from prototypes to production parts. We are trusted for automotive, aerospace, medical, and custom applications.
Precision-machined parts for vehicle systems, EV components, and performance upgrades — built to meet industry safety and reliability standards.
High-performance, tight-tolerance parts for aircraft, drones, defense systems, and satellites, manufactured to aerospace-grade specifications.
Custom CNC components for surgical tools, diagnostic devices, and healthcare equipment, produced with medical-grade materials and ISO-certified processes.
Machined parts for robotic systems, end-effectors, and automation equipment — helping engineers bring next-gen technology to life.
Custom CNC parts for household products, lifestyle gadgets, and new product launches — combining quality, functionality, and cost-efficiency.
Electronics Industry
Precision housings, brackets, and electronic enclosures are machined to tight tolerances for consumer electronics and industrial devices.
Automation Industry
Reliable, high-precision components for assembly lines, automation systems, and industrial machinery — keeping production smooth and efficient.
New Energy
Machined parts for robotic systems, end-effectors, and automation equipment — helping engineers bring next-gen technology to life.
CNC Machining FAQs
How much does your CNC machining service cost?
Costs vary by part design, material, quantity, and delivery speed. Upload your CAD file for a quick quote (Get a quote page link) with our dedicated engineers’ support. Contact Us today.
What is the maximum part size for CNC machining?
We can machine parts up to 2000×1500×300 mm (or equivalent in inches), contact us for larger or custom setups.
Do you offer Quick-Turn CNC Machining?
Yes, we offer fast CNC machining options, with parts ready in as little as 1–3 business days, depending on complexity.
What are your CNC machining & turning capabilities?
We provide 3-axis, 4-axis, and 5-axis CNC milling, along with precision CNC turning for complex round and cylindrical parts.
What are your tolerances for CNC-machined parts?
We offer tighter tolerances available upon request based on material and part geometry up to ±0.001
What are your inspection options for CNC machining?
We offer dimensional inspections, full quality reports, and material certifications on request to ensure every part meets your exact specifications.
How does CNC machining differ from traditional machining?
CNC machining uses computer-controlled tools for higher precision, faster production, and consistent repeatability compared to manual machining.
