EC International Group

CNC machining

Prototypes & Pre-series • 1 to 100 parts

3 to 7-axis CNC machining • Metal & Plastic

Fast lead times: 6 to 16 working days (shipping included)

CNC machining for rapid prototyping and precision parts

Precise, reliable and fast CNC prototypes

Thanks to our production facility and our network of qualified industrial partners, EC International Group offers CNC machining services for rapid prototyping and low-volume production, designed to meet your requirements for precision, lead time and reliability.

Reduce your product development time, secure your technical validations and accelerate your time to market.

Our 3- to 5-axis CNC machining capabilities enable the production of functional prototype parts in metal and plastic, with tight tolerances, perfectly suited for:

  • Testing
  • Technical validation
  • Pre-industrialization

Benefit from custom CNC machined prototypes, delivered quickly, with industrial-grade quality from the very first part.

Get fully compliant parts from the first production run, without costly iterations.

What is CNC machining?

CNC machining (Computer Numerical Control) is a manufacturing process that consists of removing material with extreme precision from a solid block using computer-controlled cutting tools.

This technology enables the production of high-precision parts with excellent repeatability, making it an ideal solution for rapid prototyping and low-volume production.

Our CNC machining technologies

The main CNC machining processes include:

  • 3- to 5-axis CNC milling: ideal technology for complex parts and intricate geometries
  • 2- to 7-axis CNC turning: a fast and reliable solution for precision cylindrical parts
  • Wire EDM (WEDM): perfect technology for complex and hard-to-reach geometries

Thanks to these processes, it is possible to manufacture functional prototypes that are fully accurate to the 3D model and ready for real-world use.

These manufacturing processes are tailored to meet every technical and industrial requirement.

Parts dimensions

  • Parts up to 1200 x 700 x 650 mm

Tolerances

  • Standard: ISO 2768-mK
  • High precision → Metal: ± 0.005 mm & Plastic: ± 0.05 mm

Types of parts manufactured

  • Complex technical parts
  • Custom mechanical components based on drawings
  • Shafts (grinding machine), bores (reamer), functional parts

Materials:

  • ABS
  • PMMA (opaque or high polished transparent)
  • PC (opaque or high polished transparent)
  • PC 30% glass-fiber-filled
  • POM
  • POM 30% glass-fiber-filled
  • PP
  • PP 30% glass-fiber-filled
  • ABS/PC
  • PA6
  • PA66
  • PA6 30% glass-fiber-filled
  • PBT
  • PBT 30% glass-fiber-filled
  • PPS
  • PEEK
  • ULTEM 1000
  • ULTEM 2300
  • PEI
  • PPSU
  • PTFE (TEFLON)
  • … (non-exhaustive list)
  • Steel S235
  • Steel S275
  • Steel S355
  • Steel C45
  • Steel C55
  • Steel C35
  • Steel 25CD4
  • Steel 35CD4
  • Steel 42CD4
  • Steel 45CD4
  • Steel 40CMD8
  • Steel 45NCD16
  • Steel Z140 CDV12
  • Steel Z160 CDV12
  • Steel Z35 CD17
  • Steel 110 kg
  • Steel XC45
  • Steel XC48
  • … (non-exhaustive list)
  • Standard brass
  • Brass Cu Zn 15
  • Brass Cw 614N
  • Brass Cu Zn 39 Pb2
  • Brass Cu Zn 40 Pb2
  • ... (non-exhaustive list)

Bronze machining

Magnesium machining

  • Aluminum 6061
  • Aluminum 6060
  • Aluminum 6082
  • Aluminum 7075
  • Aluminum 2017A
  • Aluminum 2024
  • Aluminum 5060
  • Aluminum 5050
  • Aluminum 2027
  • Aluminum 6063
  • Aluminum 5083
  • Aluminum 1060
  • Aluminum XXXX T1 to T6
  • … (non-exhaustive list)
  • Stainless steel 303
  • Stainless steel 304
  • Stainless steel 304L
  • Stainless steel 316
  • Stainless steel 316L
  • Stainless steel 301 (spring-tempered stainless steel)
  • Stainless steel 17-4 PH
  • Stainless steel 430 (magnetic)
  • … (non-exhaustive list)
  • Standard copper
  • Copper Beryllium
  • Copper ETP
  • … (non-exhaustive list)

Titanium machining

Zamak machining

Custom material sourcing on request according to your technical requirements.

Why choose EC International Group for your CNC machining?

End-to-end expert support

A dedicated expert supports you at every stage:

  • Needs analysis
  • DFM optimization (Design for Manufacturing)
  • Material selection
  • Production monitoring
Gain performance, reliability, and peace of mind from the prototyping phase.

Fast lead times & quotation within 24h

Accelerate your development cycles and product launches.

Industrial quality & guaranteed compliance

Each part is inspected by a qualified team to ensure:
  • Compliance with specifications
  • Reliability in real-world conditions
  • Ready for testing and industrialization
Secure your projects from the very first production run.

Recognized expertise in CNC machining for demanding industrial projects

EC International Group supports its clients in CNC machining projects, from rapid prototyping to low-volume production, with proven industrial expertise and an organization tailored to the most demanding environments.

  • 17,000+ industrial projects completed in CNC machining and custom manufacturing
  • Experience across high-demand industries: aerospace, space & telecommunications, defense & military, automotive, robotics, energy, medical, consumer goods
  • Advanced technical expertise in precision mechanical parts, DFM optimization, and international project management

A solid, multi-industry experience to secure your developments from prototype to production.

CNC Finishing Options & Surface Treatments

  • From a RAL or PANTONE reference, or a sample
  • All kinds of finishing: Satin, matte, glossy, soft touch, textured and chrome-style paint
  • Chrome bath (glossy, matte or satin appearance)
  • Chrome bath with electrical conductivity
  • Smooth or shiny appearance
  • Transparent for PMMA and PC parts
  • Manual polishing or steam polishing for details on optical parts
  • Standard zinc plating
  • White zinc plating
  • Yellow zinc plating
  • Tin plating
  • Nickel plating
  • Galvanization
  • AG5 silver plating
  • Oxidizing
  • Burnishing
  • Nitriding
  • Quenching and tempering (HRC)
  • ... non-exhaustive list
  • Ra 6,3 to Ra 0,1 µm


  • Glossy or matte appearance in various colors
  • Granular appearance (similar to your chosen VDI 3400 reference)
  • Brushed appearance

Printing / Tampography / Silk printing

Metallization

Laser engraving

High-precision CNC machining centers for prototyping

High-performance CNC machine park

  • 150+ 3- to 7-axis machining centers: DMG MORI, high-speed machining, AI optimization
  • 20+ turning centers: TSUGAMI, high precision
  • EDM machines: wire cutting & die-sinking
High industrial capacity to ensure precision, responsiveness, and flexibility.
Chargement...
Machining centers

Use cases: CNC machining for prototyping

• Product validation: accurate prototypes to validate your technical and mechanical choices

• Functional prototypes: real-world testing with end-use materials

• Preseries before industrialization: secure production before scaling to mass production or injection molding

Reduce risks, accelerate your development cycles, and optimize your industrial costs.

Possible validations with CNC machining

  • Material
  • Mechanical
  • Aesthetic
  • Thermal
  • Functional

FAQ: CNC machining for prototyping

What is the lead time for a CNC machined prototype?

The lead time for a CNC machined prototype depends on complexity, materials, and finishing requirements. Typically, it ranges from 6 to 16 working days (including shipping).

Thanks to our production facility and industrial organization, we can shorten lead times for urgent projects.

What is the cost of CNC machining for a prototype?

The cost of a CNC prototype depends on several factors:

  • Part complexity
  • Material: metal or plastic
  • Required tolerances
  • Quantities: single part or low-volume production
  • We provide fast quotations within 24 hours (48h depending on complexity), with technical optimization to reduce your costs.

Why choose CNC machining for prototyping?

CNC machining is ideal for prototyping because it allows the production of functional parts using the same materials as final production.

Unlike other technologies, you get reliable, precise prototypes that can be tested in real-world conditions.

What tolerances can be achieved with CNC machining?

CNC machining enables very tight tolerances:

  • Metals: up to ± 0.005 mm
  • Plastics: up to ± 0.05 mm

This ensures high-precision parts suitable for demanding industrial applications.

What materials can be used in CNC machining?

We machine a wide range of industrial materials:

  • Metals: aluminum, steel, stainless steel, titanium, copper, brass, bronze...
  • Plastics: ABS, POM, PEEK, PC, PMMA, nylon, etc.

We advise you on the best material based on your mechanical, thermal, and budget constraints.

What is the difference between CNC machining and 3D printing?

  • 3D printing: suitable for visual or quick prototypes
  • CNC machining: ideal for strong, precise, and functional parts

CNC is recommended for mechanical testing, technical validation, and pre-industrialization.

Can you move from CNC prototyping to mass production?

Yes. CNC machining allows you to produce:

  • Single prototypes
  • Pre-series
  • Low-volume production (1 to 100+ parts)

This helps secure your product development before industrialization.

What types of parts can be manufactured with CNC machining?

CNC machining enables the production of:

  • Complex technical parts
  • Custom mechanical components based on drawings
  • Functional parts: shafts, bores, assemblies, etc.

Suitable for many industries: industrial manufacturing, automotive, aerospace, electronics, etc.

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