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Custom Online CNC Turning Services

Need precision CNC turning services you can trust? We deliver aerospace-grade custom CNC turning solutions worldwide, Meet stringent industry standards for aerospace, medical, and automotive applications.Get an instant quote today.

Tolerance down to 0.0005 inches(0.01mm)

Tolerance down to 0.0005 inches(0.01mm)

No minimum order quantity

No minimum order quantity

Over 40 Certified Materials

Over 40 Certified Materials

Delivery in as little as 5 days

Delivery in as little as 5 days

All uploads are secure and confidential.
Custom Online CNC Turning Services

Custom Online CNC Turning Services Supplier in China

Take advantage of our on-demand CNC turning service to produce high-quality metal and plastic components tailored to your specific project requirements. Whether you need custom prototypes or end-use production parts, our advanced machining capabilities ensure exceptional accuracy, consistency, and durability.

Our efficient processes and rigorous quality control guarantee cost-effective solutions, helping you bring your designs to life with speed and precision.REKO is your trusted partner for CNC turning.

Custom Online CNC Turning Services Supplier in China

Why Order CNC Milled Parts From REKO

Why Order CNC Milled Parts From REKO
High-Quality Precision Machining
REKO employs advanced CNC milling and stringent QC processes to ensure industry-standard dimensional accuracy and surface finish. Our tolerance configurator enables machining precision up to ±0.005mm.
Assortment of machined materials including stainless steel, aluminum alloys and engineering plastics arranged on white surface, showing REKO's multi-material processing expertise
Wide Range of Material Compatibility
REKO offers CNC Milling services for various materials, including stainless steel, aluminum alloys, brass, and high-performance engineering plastics, catering to diverse industry needs.
Tailored Customization for Specific Needs
Tailored Customization for Specific Needs
We provide both low-volume and high-volume custom production based on customer drawings or specific requirements, ensuring each part meets the exact design specifications.
Positive Services
Positive Services
From order confirmation to final delivery, REKO offers comprehensive technical support and after-sales service, ensuring prompt assistance whenever needed.
Extensive Machining Experience
Extensive Machining Experience
With years of experience in precision machining, our team can handle complex geometries and special materials, serving industries such as optical equipment, aerospace, and medical devices.
Fast Turnaround to Boost Productivity
Fast Turnaround to Boost Productivity
Thanks to an efficient production process and smart scheduling system, REKO ensures quick order completion, helping customers maintain their production timelines.

Tolerances for CNC Tuning

REKO achieves precision manufacturing with CNC milling tolerance standards, ensures product dimensional consistency based on a precision measurement system, and optimized for search visibility. Our standard tolerances for CNC milling metals follow ISO 2768-m, while plastics follow ISO 2768-c.

Type Tolerance
Linear Dimention +/- 0.025 mm
+/- 0.001 inch
Hole Diameters (not reamed) +/- 0.025 mm
+/- 0.001 inch
Shaft Diameters +/- 0.025 mm
+/- 0.001 inch
Part Size Limit 800*500*500 mm
31.5*20*20 inch

CNC Machining Materials

We provide a wide range of certified materials, including metals and plastics, ensuring high precision, durability, and industry compliance for various applications.

Metal
Aluminum
Stainless steel
Steel
Brass
Copper
Plastic
POM (Delrin/Acetal)
PMMA (Acrylic)
PEEK
PA(Nylon)
PTFE(Teflon)
PVC
PE
HDPE
ABS
Aluminum

Aluminum: Aluminum is known for its lightweight, strength, and machinability, making it an ideal choice for a wide range of applications, including aerospace, automotive, and industrial parts. Its excellent corrosion resistance also makes it perfect for outdoor projects and structural components.

Alloys: Aluminum 6061-T6, Aluminum 7075-T6, Aluminum 5052, Aluminum 5083,Aluminum 6060,Aluminum 6063,Aluminum 6082, Aluminum 2017

Available Finish: As machined, Anodizing, Powder coating, Electroplating, Painting, Sand blasting, Polishing

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Aluminum
Aluminum
Aluminum
Stainless steel

Stainless steel: Stainless steel is a widely used metal essential across various industries, including medical and power generation. Its value lies in its strength, heat resistance, and outstanding corrosion resistance.

Alloys: SUS201, SUS303, SUS 304/304L, SUS316/316L, SUS416, SUS420,SUS430,etc

Available Finish: As machined, Electroplating, Polishing,Passivation, Powder coating

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Stainless steel
Stainless steel
Stainless steel
Steel

Steel:Steel, known for its outstanding mechanical properties and dimensional stability, is essential in modern engineering. Its high tensile strength allows for the creation of strong structural components vital for infrastructure, and advancements in metallurgy through alloying and heat treatment have broadened its use across various industries.

Alloys: Steel 1018,1020,1025,1045,1215, 4130, 4140, 4340, 5140

Available Finish: As machined, Electroplating, Polishing,Passivation, Powder coating

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Steel
Steel
Steel
Brass

Brass:Brass constitutes a broad family of copper-zinc alloys, with compositions varying primarily in zinc content and frequently incorporating alloying elements such as lead, aluminum, and iron. This material inherits high thermal and electrical conductivity from its copper base, while exhibiting exceptional wear resistance. Notably, the addition of lead significantly enhances its machinability - a property that establishes brass as the most workable copper alloy class.

Alloys: C360, C260

Available Finish: As machined, Polishing, Nickel Plating,Chrome plating, Bead Blasted, Gold Plating, Silver Plating

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Brass
Brass
Brass
Copper

Copper:Copper, also known as red copper or pure copper, is an alloy that is nearly entirely made up of copper, typically with over 99% copper content. Due to its near-purity, copper retains all the essential properties of the metal, making it one of the oldest and most widely used copper-based materials.

Alloys: C10100, C11000, C12200, C14500, C17200

Available Finish:As machined, Polishing, Nickel Plating,Chrome plating, Bead Blasted, Gold Plating, Silver Plating

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Copper
Copper
Copper
POM (Delrin/Acetal)

POM (Delrin/Acetal):Exhibits high stiffness, good moisture resistance, and superior wear resistance, featuring a low-friction surface. This makes it ideal for precision components such as gears and bearings, ensuring they fit perfectly and operate smoothly.

Color: POM Black, POM White,POM Blue, POM Red

Available Finish:As machined, Bead Blast

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POM (Delrin/Acetal)
POM (Delrin/Acetal)
POM (Delrin/Acetal)
PMMA (Acrylic)

PMMA (Acrylic):PMMA, commonly known as acrylic, is clear, weather-resistant, and does not fade. It is ideal for outdoor displays, signage, and lighting, due to its durability in various weather conditions.

Color: Transparency

Available Finish:As machined, Sand blasting, Tumbling, Painting

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PMMA (Acrylic)
PMMA (Acrylic)
PMMA (Acrylic)
PEEK

PEEK:PEEK is robust and maintains its strength at high temperatures. It is used in demanding sectors such as aerospace and medical implants due to its ability to withstand extreme conditions.

Color: Beige with no transparency

Available Finish:As machined, Bead Blast

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PEEK
PEEK
PEEK
PA (Nylon)

PA (Nylon):Nylon is versatile, tough, and resistant to wear. Common applications include wear pads, guide wheels, and slide bearings.

Types: PA6,PA6+GF15,PA6+GF30,PA66,PA66+GF15,PA66+GF30

Available Finish:As machined, Bead Blast

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PA (Nylon)
PA (Nylon)
PA (Nylon)
PTFE (Teflon)

PTFE (Teflon):PTFE, commonly known as Teflon, stands out among most engineering plastics due to its exceptionally high melting point., low friction, and chemical inertness. These properties make it essential in non-stick cookware and widely used in food, petrochemical, medical, and electrical industries.

Color: White,Black

Available Finish:As machined, Bead Blast

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PTFE (Teflon)
PTFE (Teflon)
PTFE (Teflon)
PVC

PVC:Polyvinyl chloride (PVC) offers durability, affordability, and chemical resistance. Widely used in plumbing pipes, medical devices, and electrical cables, PVC effectively withstands corrosion and wear.

Color: Grey

Available Finish:As machined, Painting

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PVC
PE

PE:Polyethylene is lightweight, durable, and highly impact-resistant. It is widely used for packaging, containers, and applications needing materials that can endure pressure without cracking.

Color: White,Black

Available Finish:As machined, Painting

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PE
HDPE

HDPE:HDPE is strong, impact-resistant, and offers a high strength-to-density ratio. With excellent chemical and moisture resistance, it’s widely used in packaging,construction, electrical, and automotive industries.

Color: White,Black

Available Finish:As machined

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HDPE
ABS

ABS:ABS offers excellent impact, heat, and chemical resistance, making it ideal for harsh environments. Its low cost and durability make it a popular choice, especially for CNC machining, which allows cost-effective production of custom parts.Commonly used in automotive parts, toys, electronic housings, and consumer goods.

Color: Natural,Black White,Grey

Available Finish:As machined, Bead Blast,Sand blasting,Painting, Powder coating, Electrophoresis

Learn more
ABS

CNC Machining Surface Finishes

In addition to our precision CNC machining services, we offer a comprehensive array of surface finishing solutions tailored for machined components.

As Machined As Machined

This finishing option offers significant cost savings with natural machine marks, making it ideal for prototype validation, functional testing, or applications where residual machining texture is acceptable per engineering specifications.

Bead Blast Bead Blast

Machined parts are bead blasted with glass beads to achieve a uniform, grainy texture and eliminate machining marks.

Polishing Polishing

Polishing delivers a high-luster finish, reducing surface roughness (Ra < 0.8μm) and enhancing metal aesthetics. It utilizes mechanical abrasion or chemical treatmentto create a smooth, reflective surface.

Anodizing Anodizing

Anodizing improves corrosion resistance and wear properties, and enables color dyeing, making it perfect for aluminum parts.
Black Oxide Black Oxide

Black oxide is a conversion coating applied to ferrous materials to provide mild corrosion resistance, enhance appearance, and to minimize light reflection.

Heat Treatment Heat Treatment

Heat treatment modifies metals via controlled heating/cooling to alter crystalline structure, enhancing hardness, temperature resistance, ductility, and strength.

Brushed Finish Brushed Finish

A brushed finish is achieved using a wire brush or abrasive pad, creating attractive lines called 'grain'. This finish is visually appealing and resistant to scratches and fingerprints, minimizing visible marks.

Powder Coating Powder Coating

Powder coating applies powdered paint to surfaces, which are baked in ovens to form wear-resistant and corrosion-proof layers with vibrant colors and textures for enhanced durability.

Plating Plating

Plating is a type of coating in which a metal is deposited on a conductive surface. corrosion-resistant properties, enhanced solderability, hardness, and reduced friction, including Nickel Plating, Silver Plating, Gold Plating, Chrome Plating, Zinc Plating, and Tin Plating.

Painting Painting

Painting is a versatile and widely used metal finishing technique that provides both protection and aesthetic enhancement for metal surfaces. Appearance ideal for automotive, aerospace, and industrial applications

Passivation Passivation

Passivation is a common metal finishing . For stainless steel, this process involves using nitric acid or citric acid to eliminate free iron from the surface. This chemical treatment creates a protective oxide layer, or passivation film. Significantly enhancing its resistance to rust

Laser Engraving/CNC engraving Laser Engraving/CNC engraving

Laser engraving uses focused beamo of light to quickly and accurately create permanent designs on materials, It is commonly used to add part numbers, or logos. CNC engraving involves creating intricate designs and shapes on surfaces using a CNC machine.

What is CNC Turning?

CNC turning is a precision subtractive manufacturing process used to create cylindrical, conical, or spherical components by rotating the workpiece against a stationary cutting tool.
Controlled by pre-programmed G-code, CNC lathes automate the turning process to achieve high accuracy, repeatability, and efficiency. CNC turning is widely utilized across industries such as aerospace, automotive, medical devices, and industrial equipment manufacturing.

Close-up of a CNC lathe performing high-speed turning on a rotating metal workpiece, with visible sparks flying as the cutting tool engages. The blurred factory background emphasizes the precision machining action, demonstrating industrial manufacturing processes for aerospace and automotive applications.

How CNC Turning Works

The process begins with loading a bar of raw material (stock) into the lathe’s chuck or collet, which securely clamps the workpiece. The spindle then rotates the material at a controlled speed. As the spindle spins, a series of stationary or moving cutting tools are precisely positioned against the material to remove layers and shape the part according to the programmed design.

During the turning process, various machining operations can be performed, including:
· Facing: Flattening the end of the workpiece.
· External and Internal Turning: Reducing the diameter of the outside or creating bores inside.
· Threading: Cutting internal or external threads.
· Knurling: Creating textured surfaces for better grip.
· Drilling, Boring, and Reaming: Producing and finishing holes with precise dimensions.
· Taper Turning: Forming angled surfaces.

For more advanced capabilities, live tooling lathes are equipped with powered tools that can perform milling, drilling, and tapping operations without removing the workpiece from the machine, reducing setup time and increasing efficiency.

CNC-turned metal drill bit with precision spiral flutes, showcasing thread-cutting capabilities in turning operations. The helical grooves facilitate chip evacuation during drilling processes.
Machined metal cylindrical part with standardized external threads, demonstrating CNC turning's threading capability. The uniform pitch threads suggest use in mechanical fastening systems.
Machined metal cylindrical part with standardized external threads, demonstrating CNC turning's threading capability. The uniform pitch threads suggest use in mechanical fastening systems.

Applications Of CNC Turning

Silver sedan against sunset ocean backdrop, representing CNC turning applications for automotive parts like crankshafts and brake rotors requiring ±0.005mm tolerances.
Automotive
Used for manufacturing engine crankshafts, drive shafts, brake rotors，gear blanks, bushings, fasteners, piston pins, and steering components where tight tolerances and strength are essential.
Commercial aircraft flying through orange sunset sky, symbolizing CNC-turned titanium landing gear and aluminum rotor shafts with weight-optimized designs.
Aerospace
Applied to produce aircraft fittings, hydraulic components, landing gear parts, and rotor shafts, where both lightweight materials and precision are crucial for safety and performance.
Microscopic view of surgical tool production, highlighting CNC-machined orthopedic implants with Ra 0.2μm surface finish for biocompatibility.
Medical equipment
Essential for crafting orthopedic implants, surgical instruments, dental components, and prosthetic devices, which require high precision, biocompatibility, and flawless surface finishes.
Factory worker in red helmet operating CNC lathe producing durable bearing housings and hydraulic valves for 24/7 industrial use.
Industrial machinery
Used for making rollers, couplings, bearing housings, valves, and hydraulic system parts that must withstand heavy loads and continuous operation.
Gold-plated smartphone case exemplifying CNC-turned copper contact pins and aluminum enclosures with 0.01mm positional accuracy.
Electronics
Creates connectors, contact pins, and enclosures for various electronic devices requiring fine precision and small-scale production.
Automated warehouse with green-lit robotic arms, featuring CNC-machined harmonic drive components achieving 0.001° rotational precision.
Robotics & Automation
Turns parts like actuator shafts, motor housings, and precision linkages, which are vital for motion control and system reliability.

CNC Machining FAQs

How can I get the quotation?

Please provide us the following information together with your inquiry.

  • Detailed drawings ( CAD/DWG/IGS/STEP/ file ).
  • Material requirement.
  • Surface treatment.
  • Quantity (per order/per month/annual).
  • Any special demands or requirements, such as packing, labels,delivery,etc.
    • How can you ensure the quality?
  • Will double confirm with client for drawing before production.
  • Serious control and management for drawing.
  • Cooperated with quality material supplier.
  • Experienced programmers and machinists.
  • Self-checking during production and checking record.
  • QC checked the size and surface, and made dimension inspection report.
  • Packaga department will double check surface before packing.
  • The dimension report will be sent together with the shipment.
    • How to proceed order?
  • Payment.
  • Production drawing confirmed with you.
  • REKO engineer will re-evaluate drawing before production.
  • Evaluate delivery time and get back to you.
  • Confirm shipping details.
  • Arrange shipment.
    • How do you guarantee the deliver time?
  • We have independent PMC department to arrange the production plan.
  • We have production meeting every Monday morning to report the production process and discuss the problems.
  • We will make production progress report in our system to ensure the related department will follow the next step process.
    • How to pay for the order?
  • Telegraphic Transfer (TT).
  • Letter of Credit (L/C).
  • Alibaba Trade Assurance.
  • Paypal.
    • What tolerances can we achieve?

    The tolerance complies with the international ISO 2768 standard. High-precision metal processing can achieve ±0.005mm. General metal processing accuracy is ±0.01mm. Plastic and other composite materials are ±0.02mm.

    Where is your factory?

    We are in Baoan of Shenzhen China, Near ShenZhen airport.

    Can the order be expedited if it is urgent?

    Yes, we provide expedited service. We have two devices specially prepared for expedited items.

    Start production now and get your parts faster.