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Custom Online CNC Milling Services

Seeking reliable precision CNC milling services? We offer high-quality custom CNC milling solutions for global clients, with a variety of materials to suit diverse industry needs.Get an instant CNC 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 Milling Services

Custom Online CNC Milling Services Supplier in China

REKO is the leading provider of CNC-milled parts, focusing on providing high-quality plastic and metal parts. With advanced CNC equipment and strict quality control, we are able to meet a variety of needs from rapid prototyping to mass production. Our team of engineers, designers and procurement experts work closely together to ensure that every project can be delivered smoothly under the premise of efficiency, reliability and cost-effectiveness. Whether it is complex custom parts or high-standard mass production, we can provide professional support to help customers optimize product design, improve manufacturing efficiency, and accelerate product launch. REKO, your preferred partner for precision machining!

Custom Online CNC Milling Services Supplier in China

Our capabilities for CNC Milling

From basic 3-axis operations to complex 5-axis machining, our CNC milling services transform your designs into precise parts. Achieve tight tolerances and superior surface finishes with our advanced multi-axis systems.

3Axis_CNC_Milling_X800Y500Z500_001mmTolerance

3-axis is the most widely used type of CNC milling machine. Utilizing the X, Y, and Z axes, it offers versatility for various applications.With 3-axis CNC milling, precision meets affordability. it provides an economical option for creating parts with simpler geometries.

Processing size Tolerance
X800*Y500*Z500mm +/-0.01 mm
5Axis_CNC_Machining_ComplexCavities_170x270x100mm

5-axis CNC milling centers deliver high-quality parts with increased efficiency. These machines combine three traditional axes with two rotary axes, allowing A 5-axis CNC router to machine all five sides of a workpiece in a single setup without the need for removal or resetting. they offer a cost-effective solution for achieving complex geometries parts.

Processing size X170*Y270*Z100mm
X800*Y500*Z500mm +/-0.01 mm

Tolerances for CNC Milling

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.

Why Order CNC Milled Parts From REKO

REKO_CNC_Milling_RedLight_001mmTolerance
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.
REKO_Material_Compatibility_Steel_Aluminum_Plastics
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.
REKO_Custom_CNC_Design_Blueprint_HandSketch
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.
REKO_Technical_Support_Team_Workstation
Positive Services
From order confirmation to final delivery, REKO offers comprehensive technical support and after-sales service, ensuring prompt assistance whenever needed.
REKO_Showroom_Orange_Display_Precision_Parts
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.
REKO_Factory_Floor_MultiCNC_Rapid_Production
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.

How Does CNC Milling Work?

1. CAD Design Development
Our process begins with the development of a detailed 3D model using advanced computer-aided design (CAD) software. This model defines all geometric features, dimensional tolerances, hole placements, threads, and surface finishes. We ensure that the design is optimized for machinability and functionality based on the intended application.
2. CAM Programming & G-Code Generation
Once the CAD model is finalized, it is imported into CAM (Computer-Aided Manufacturing) software to create the machining strategy. Tool paths are generated based on material type, cutting tool specifications, and machining operations (e.g., roughing, finishing, drilling, contouring). The CAM software then converts these instructions into G-code — the standardized machine language used by CNC systems — detailing tool movements, spindle speeds, feed rates, and coordinates.
3. Machine Configuration & Setup
Our CNC operators prepare the machine according to the G-code instructions: · Selection and installation of suitable cutting tools (e.g., end mills, face mills, drills) · Securing the raw material (workpiece) on the machine bed using precision vises, fixtures, or vacuum systems · Loading the G-code into the CNC controller · Setting zero points (work offsets) and performing dry runs to verify paths
4. Precision Milling Execution
The CNC machine executes the programmed instructions, moving the cutting tool with micron-level accuracy along multiple axes (typically 3, 4, or 5 axes depending on part complexity). Material is progressively removed through a series of operations, including: · Rough milling for bulk material removal · Semi-finishing to refine geometry · Finishing cuts to achieve final dimensions and surface finish Advanced sensors and control systems maintain stability, compensate for tool wear, and ensure thermal consistency throughout the process.
5. Quality Inspection & Finishing
After machining, each component undergoes rigorous quality inspection using precision measuring tools such as calipers, micrometers, CMM (Coordinate Measuring Machines), and surface roughness testers. Depending on customer requirements.Additional processes like deburring, polishing, or surface treatments may be applied to meet final product specifications.
REKO_CNC_Workflow_Step1_CAD_Design_Engineer REKO_CNC_Workflow_Step3_Machine_Setup_Metallic REKO_CNC_Workflow_Step5_Quality_Control_Micrometer

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.