Precision CNC Turning Services
Koonze Model offers high-precision CNC turning with fast lead times, tight tolerances, and broad material compatibility—perfect for prototyping and production in automotive, aerospace, and industrial sectors.
- Tolerances as tight as ±0.01 mm (± 0.0004 in)
- Parts ready in as little as 1 day
- 95.4% on-time delivery rate you can count on
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Our CNC Turning Solutions
Speed up product development with our rapid machining services. We deliver high-quality prototypes and mold tooling fast—helping you verify designs and move to production with confidence.
Whether it’s small runs or large-scale production, we’ve got you covered. Our strict tolerance controls and versatile capabilities ensure top quality at any volume.
CNC Turning Factory
CNC Machining Materials
Metal
Aluminum
Aluminum is a versatile, lightweight metal favored in CNC machining for its excellent machinability, strength-to-weight ratio, and corrosion resistance. It provides high precision and smooth finishes, ideal for intricate components in automotive, aerospace, and electronics.
- Aluminum 2024
- Aluminum 5052
- Aluminum 5083
- Aluminum 6061
- Aluminum 6061-T6
- Aluminum 6063
- Aluminum 6082
- Aluminum 7075
- Aluminum 7075-T6
Copper
Excellent thermal and electrical conductivity, corrosion resistance, and ease of machining. Ideal for electrical and heat exchanger components.
- Beryllium Copper
- Copper C101 (T2)
- Copper C103 (T1)
- Copper C103 (TU2)
- Copper C110 (TU0)
Brass
Good machinability, corrosion resistance, and electrical conductivity. Typically used for decorative and electrical components.
- Brass C27400
- Brass C28000
- Brass C36000
Bronze
Highly durable, corrosion-resistant, and resistant to wear. Commonly used for bearings and bushings.
- Tin Bronze
Steel
Strong, durable, and versatile. It’s commonly used for structural components, machinery parts, and tools.
- Steel 1018
- Steel 1020
- Steel 1025
- Steel 1045
- Steel 1215
- Steel 4130
- Steel 4140 / 42CrMo
- Steel 4340
- Steel 5140
- Steel A36
- Steel ST37
- Alloy Steel 4J36
- Die Steel 718H
- Die Steel P20
- Die Steel S136
- Die Steel S7
- Chisel Tool Steel D2 / SKD11
- Chisel Tool Steel SKD61
- Cold Rolled Steel DC-01
- High Speed Steel SKH51
- Spring Steel 1566
- Spring Steel 9260
- Tool Steel A2
- Bearing Steel E51100 / SUJ1
- Bearing Steel E52100 / SUJ2
Stainless Steel
- Stainless Steel AISI 304
- Stainless Steel SUS201
- Stainless Steel SUS303
- Stainless Steel SUS 304
- Stainless Steel SUS316
- Stainless Steel SUS316L
- Stainless Steel SUS420
- Stainless Steel SUS430
- Stainless Steel SUS431
- Stainless Steel SUS440C
- Stainless Steel SUS630 / 17-4PH
Magnesium
Magnesium alloy is a lightweight, high-strength material known for its excellent machinability and corrosion resistance, often used in aerospace, automotive, and electronics applications for its low weight-to-strength ratio.
- Magnesium Alloy AZ31B
- Magnesium Alloy AZ91D
Titanium
Titanium alloy is a high-strength, corrosion-resistant material with excellent fatigue resistance and heat tolerance, commonly used in aerospace, medical, and automotive applications for its durability and lightweight properties.
- Titanium Alloy TA1
- Titanium Alloy TA2
- Titanium Alloy TC4/Ti-6Al 4V
Plastics
ABS
ABS is durable, heat-resistant, and impact-resistant. Lightweight and easy to process, it is an ideal material for automotive parts and consumer goods where both durability and cost-effectiveness are key considerations.
- ABS Beige (Natural)
- ABS Black
- ABS Black Antistatic
- ABS Milky White
PC
High impact resistance, transparent, and excellent for high-stress applications. Often used in protective covers and optical components.
- Flame Retardant Transparent PC
- Food Grade PC-Transparent
- PC Black
- PC Transparent
- PC White
- PC Yellowish White
PC+GF30
PC+GF30 is a composite material made by reinforcing polycarbonate with 30% glass fiber, offering enhanced strength, stiffness, and heat resistance, suitable for high-performance applications requiring durability and stability.
- PC+GF30 Black
PMMA
Transparent, lightweight, and resistant to UV and weathering. Commonly used for visual parts like displays and light covers.
- PMMA Black
- PMMA Transparent
- PMMA White
POM
POM is durable and features a low-friction surface, making it ideal for precision components such as gears and bearings, where precise fit and smooth operation are essential.
- Dark brown (coffee) POM 100AF
- POM Black
- POM Blue
- POM White
PA (Nylon)
Nylon is highly versatile, durable, and resistant to wear, making it a popular choice for gears, bearings, and other components that endure continuous friction and heat without degrading.
- PA (Nylon) Blue
- PA6 (Nylon) + GF15 Black
- PA6 (Nylon) + GF30 Black
- PA66 (Nylon) Beige (Natural)
- PA66 (Nylon) Black
PE
Lightweight, chemical-resistant, and low-friction. Ideal for fluid handling parts and food-grade applications.
- PE Black
- PE White
PP
Chemical resistance, low moisture absorption, and high fatigue resistance. Often used in packaging, automotive, and medical applications.
- PP Black
- PP White
PP+GF30
PP+GF30 (Polypropylene with 30% Glass Fiber) combines lightweight, excellent chemical resistance, and improved strength, making it ideal for CNC machining in automotive, industrial, and electrical components requiring durability and performance.
- PP+GF30 Black
PEEK
PEEK is a high-strength material that maintains its durability even at elevated temperatures. Commonly used in high-performance industries such as aerospace and medical implants, it is designed to withstand extreme conditions.
- PEEK Beige (Natural)
- PEEK Black
PTFE
PTFE is chemically resistant, has low friction, and remains stable at high temperatures. It is commonly used in non-stick coatings, gaskets, and seals, where reliable performance under harsh conditions is essential.
- Teflon (PTFE) Black,
- Teflon (PTFE) White
PVC
Durable, chemical-resistant, and versatile. Used for piping, fittings, and electrical insulation.
- PVC Grey
PPS
PPS is resistant to heat and chemicals, making it ideal for automotive, aerospace, and industrial components that must maintain strength and stability in harsh environments.
- PPS Black
- PPS White
PPS+GF30
PPS+GF30 is a high-performance material with excellent chemical resistance, high temperature stability, and improved strength due to the addition of 30% glass fiber, making it ideal for demanding CNC applications.
- PPS+GF30 Black
PPS+GF31
PPS+GF31 is a high-performance material offering excellent thermal stability, chemical resistance, and mechanical strength, enhanced with 31% glass fiber reinforcement for increased durability and rigidity in demanding CNC applications.
- PPS+GF30 White
HDPE
HDPE is exceptionally strong and impact-resistant, offering a high strength-to-density ratio. It is perfect for products like bottles, containers, and pipes that must endure outdoor exposure and rough handling.
- HDPE Black
- HDPE White
PET
PET is durable, moisture-resistant, and recyclable. It is commonly used in food containers, bottles, and textiles, offering long-lasting resistance to wear and tear.
- PEI Amber
- PEI Amber(ULTEM1000)
- PEI Black(ULTEM1000)
PET+GF30
PET+GF30 (Polyethylene Terephthalate with 30% Glass Fiber) combines the durability and strength of PET with improved stiffness and heat resistance, ideal for precision CNC machining in automotive, electrical, and industrial applications.
- PET+GF30 Black
PET+GF31
PET+GF31 (Polyethylene Terephthalate with 31% Glass Fiber) offers enhanced strength, rigidity, and thermal stability, making it suitable for high-performance CNC applications in automotive, industrial, and electronic sectors.
- PET+GF30 White
ABS+PC
ABS+PC is a durable, impact-resistant material combining the strength of ABS with the heat resistance and transparency of polycarbonate, ideal for automotive, electronics, and consumer product applications.
- ABS+PC Black
- ABS+PC White
Bakelite
Bakelite is a durable, heat-resistant thermosetting plastic, ideal for electrical insulators, tool handles, and industrial applications requiring strong mechanical and thermal properties.
- Bakelite Black
- Bakelite Orange
Epoxy plate
Epoxy plate offers excellent strength, heat resistance, and electrical insulation, making it ideal for aerospace, electronics, and industrial applications requiring durability and stability.
- FR-4 Aqua Green
- FR-4 Yellow
HIPS
HIPS (High Impact Polystyrene) is a durable, impact-resistant plastic used in CNC machining, offering excellent dimensional stability and ease of processing, suitable for applications requiring strength and flexibility.
- HIPS Board White
LDPE
LDPE (Low-Density Polyethylene) is a flexible, low-density plastic commonly used in CNC machining for applications requiring low strength, high chemical resistance, and ease of fabrication, ideal for packaging and insulation.
- LDPE White
PAI
PAI (Polyamide-imide) is a high-performance engineering plastic known for its excellent thermal stability, wear resistance, and chemical resistance, commonly used in demanding CNC applications requiring durability and strength.
- PAI Brown
PBT
PBT (Polybutylene Terephthalate) is a strong, durable thermoplastic known for its excellent electrical insulation, chemical resistance, and dimensional stability, often used in automotive and electronic components for CNC machining.
- PBT Black
- PBT Milky White（Natural）
PEI
PEI (Polyetherimide) is a high-performance thermoplastic known for its excellent mechanical strength, heat resistance, and electrical properties, making it ideal for demanding applications in aerospace, automotive, and electronics industries.
- PEI Amber
- PEI Amber(ULTEM1000)
- PEI Black(ULTEM1000)
PPA
PPA (Polyphthalamide) is a high-performance engineering plastic known for its excellent heat resistance, chemical stability, and mechanical strength, making it ideal for CNC machining in demanding automotive and industrial applications.
- PPA Beige
PS
PS (Polystyrene) is a lightweight, rigid plastic known for its ease of machining and cost-effectiveness. It is commonly used in CNC applications for prototypes and low-stress parts requiring moderate impact resistance.
- PS Transparent
UPE
UPE (Ultra-High Molecular Weight Polyethylene) offers excellent wear resistance, low friction, high chemical resistance, and is ideal for heavy-duty CNC applications that require durability and impact resistance.
- UPE Black
- UPE White
Note: The materials listed above are for reference only. We offer over 100 different materials – please contact us now to find the best option for your needs.
Various Surface Finishes Available
Anodizing
Anodizing enhances corrosion resistance and wear properties, while also enabling color dyeing, making it perfect for aluminum parts.
Bead Blasting
Uses fine beads to produce a consistent matte finish, improving the part’s texture and visual appeal. This process is ideal for parts that require enhanced aesthetics or a better grip.
Brushed Finish
A surface treatment process that involves polishing the material with fine abrasive brushes to achieve a uniform, satin-like finish. This technique is commonly applied to stainless steel and aluminum.
Chrome Plating
A thin layer of chromium is deposited on the surface to improve corrosion resistance, increase hardness, and enhance visual appeal. This treatment is frequently utilized in automotive and industrial components.
Electropolishing
A process that employs electrochemical techniques to polish metal surfaces, resulting in reduced surface roughness, enhanced corrosion resistance, and a bright, reflective finish.
Hard Anodizing
An advanced type of anodizing that produces a thicker and more resilient oxide layer, significantly enhancing wear and corrosion resistance. This process is commonly applied to military and aerospace components.
Powder Coating
A dry finishing technique that involves applying and curing a powder to achieve a durable and visually appealing surface. This process provides exceptional resistance to corrosion, scratching, and fading.
Polishing
A mechanical process that utilizes abrasives to refine a surface, resulting in a smooth, shiny, and reflective finish. This technique is commonly employed on metals such as aluminum, stainless steel, and brass.
Sandblasting
Utilizes a high-pressure stream of abrasive particles to clean or texture a surface, resulting in a well-prepared area for coating or a consistent finish. This method is commonly employed for achieving uniform surface characteristics.
Textured Finish
A range of techniques designed to produce a textured surface, enhancing grip, visual appeal, or friction resistance. This approach is frequently applied to handles and exterior components.
Clear Coating
A transparent protective coating applied to surfaces that safeguards against corrosion, wear, and environmental damage while preserving the original appearance of the part.
Black Oxide
A conversion coating that imparts a black finish to metal parts, primarily enhancing corrosion resistance and providing an attractive appearance, commonly utilized for steel components.
Heat Treatment
A process involving the heating and cooling of metals to modify their physical and mechanical properties, resulting in enhanced hardness, increased strength, and improved wear resistance.
Nickel Plating
A nickel coating applied to metal parts that enhances corrosion resistance, increases hardness, and improves wear resistance, commonly utilized in automotive and industrial applications.
Zinc Plating
A protective zinc coating applied to steel parts that effectively prevents rusting, providing enhanced durability and longevity. This treatment is commonly used for fasteners, hardware, and automotive components.
Titanium Coating
A thin titanium layer applied to components that significantly enhances wear resistance, corrosion resistance, and surface hardness, making it ideal for high-performance applications.
Request a CNC Turning Quote Today
Upload your drawings to get a fast, accurate quote. No minimum order—just precision parts delivered on time.
Tolerances for CNC Turning
As an ISO 9001 certified manufacturer, we produce CNC turned parts with tight tolerances—up to ±0.005” based on your design. For CNC milled parts, we follow ISO 2768-m standards for metals and ISO 2768-c for plastics.
| Description | |
|---|---|
| Maximum Part Size | We typically handle parts up to 500 mm in diameter and 1500 mm in length, with larger sizes possible using specialized equipment. |
| Minimum Part Size | Diameters as small as 1 mm, depending on the material and machining configuration. |
| General Tolerances | Standard tolerances are ±0.01 mm, with tighter tolerances down to ±0.005 mm possible depending on material and part complexity. |
| Lead Time | Standard lead times are 3–7 days for small batches, with expedited options available—delivering in as little as 24–48 hours based on part complexity and material availability. |
| Description | |
|---|---|
| Maximum Part Size | We typically handle parts up to 500 mm in diameter and 1500 mm in length, with larger sizes possible using specialized equipment. |
| Minimum Part Size | Diameters as small as 1 mm, depending on the material and machining configuration. |
| General Tolerances | Standard tolerances are ±0.01 mm, with tighter tolerances down to ±0.005 mm possible depending on material and part complexity. |
| Lead Time | Standard lead times are 3-7 days for small batches, with expedited options available-delivering in as little as 24-48 hours based on part complexity and material availability. |
CNC Turning Design Guidelines
| Recommended Size | ||
|---|---|---|
| Radii | We recommend a minimum internal radius of 0.5 mm. Using larger radii—3 mm or more—can improve tool access and help reduce stress concentrations in the part. | |
| Threads and Tapped Holes | Both internal and external threads can be accurately machined. Standard sizes from M1.6 and up are supported. For optimal stability, thread length should be at least 1.5 times the diameter. | |
| Minumum Wall Thickness | To ensure structural integrity and smooth machining, maintain a minimum wall thickness of 0.8 mm for metals and 1.5 mm for plastics. | |
| Text | or clear legibility after machining, engraved characters should be at least 2 mm high and 0.5 mm deep. | |
| Holes | The minimum hole diameter is 0.5 mm. For deep holes, a diameter-to-depth ratio of 1:10 is recommended to prevent tool deflection and maintain hole quality. |
| Recommended Size | ||
|---|---|---|
| Radii | We recommend a minimum internal radius of 0.5 mm. Using larger radii-3 mm or more-can improve tool access and help reduce stress concentrations in the part. | |
| Threads and Tapped Holes | Both internal and external threads can be accurately machined. Standard sizes from M1.6 and up are supported. For optimal stability, thread length should be at least 1.5 times the diameter. | |
| Minumum Wall Thickness | To ensure structural integrity and smooth machining, maintain a minimum wall thickness of 0.8 mm for metals and 1.5 mm for plastics. | |
| Text | or clear legibility after machining, engraved characters should be at least 2 mm high and 0.5 mm deep. | |
| Holes | The minimum hole diameter is 0.5 mm. For deep holes, a diameter-to-depth ratio of 1:10 is recommended to prevent tool deflection and maintain hole quality. |
What Set Koonze Model’s CNC Turning Services Apart?
CNC turning is a core process in precision manufacturing, using computer-controlled lathes to shape rotating workpieces with exceptional accuracy.
At Koonze Model, we leverage advanced CNC turning technology to deliver high-precision parts for industries like automotive, aerospace, medical, and electronics. Our process ensures that each part is shaped to exact specifications through controlled, consistent cutting.
With cutting-edge equipment and tight quality control, we offer reliable, fast-turnaround solutions for complex, custom components.
Industries That Rely on Koonze Model’s CNC Turning Solutions
Koonze Model’s CNC turning services are trusted across a wide range of industries that demand precision, reliability, and speed. From mission-critical components to high-volume production parts, our advanced machining capabilities meet the exacting standards of each sector we serve.
We produce tight-tolerance shafts, bushings, and engine components that meet the durability and precision demands of modern automotive systems.
CNC-turned aerospace parts require extreme precision. We deliver lightweight, high-strength components ready for flight-critical applications.
From surgical instruments to implant-grade parts, we machine medical components with tight controls and certified materials.
We support manufacturers with custom-turned parts for pumps, valves, and mechanical systems that must perform reliably under heavy loads and harsh conditions.
Our CNC turning process produces compact connectors, pins, and housings used in consumer electronics and communication devices.
We supply key turned parts for robotic arms, joints, and drive systems—where motion accuracy and repeatability are critical.
Case Studies
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Need Help with Complex Turned Parts?
Our engineers are ready to assist with material selection, tolerance guidance, and design optimization—get expert support now.
FAQs About Our CNC Turning Services
CNC Turning Resources
