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CNC (Computerized Numerical Control) machining is a state-of-the-art, subtractive manufacturing process for the production of precise CNC parts. Computer-controlled machine tools are used to selectively remove material from a solid blank until the exact, customer-specific shape is created. In contrast to additive manufacturing (e.g. 3D printing), where material is applied layer by layer, CNC manufacturing forms the component from a solid block.

Since its beginnings, CNC machining technology has developed rapidly through the integration of digital systems. Today, modern CNC machines enable the production of extremely complex geometries. They deliver components with maximum precision and excellent repeat accuracy, making CNC machining an indispensable process in prototype construction and series production.

CNC machining is suitable for a wide range of engineering materials, including metals, plastics and composites. The choice of material depends largely on its properties and characteristics, such as mechanical strength (tensile yield strength), machinability (affecting price), cost, hardness (mainly for metals) and temperature resistance (mainly for plastics). Take a look at our material list here.

The CNC machining department uses a wide range of machinery, from CNC lathes and milling machines with up to 5 axes to band saws and specialized electrical discharge machining (EDM) and grinding machines.

These systems are equipped with precision components such as ball screws and are operated by control systems from market leaders Fanuc, Siemens or Heidenhain, while the machines themselves come from manufacturers such as DMG Mori or Hermle. Quality assurance of the finished parts is carried out using calibrated measuring equipment, supplemented by modern 3D and contour measuring machines to guarantee maximum precision.

Precision is a core feature of CNC manufacturing, which is ensured by compliance with international tolerance standards. In industry, the ISO 2768 standard is decisive for this. CNC parts made of metal are usually manufactured according to the tolerance classes "medium" (m) or "fine" (f), while the "medium" (m) class is usually used for plastic parts.

Significantly tighter tolerances can also be realized for particularly demanding applications. Geometric tolerances of up to ±0.010 mm or special fit tolerances such as H7 for shafts are feasible, but must be explicitly specified in the technical drawings. This high (repeat) accuracy is the decisive advantage of CNC machining: it enables the economical production of complex components, reduces rejects and, with modern machines, even allows fully automatic quality control directly in the production process.

The main difference between CNC milling and CNC turning lies in the movement of the workpiece and the cutting tool:

• In CNC milling, material is removed from a workpiece using a rotating cutting tool. The CNC machine feeds the workpiece to the rotating cutting tool in the same direction. This enables the machining of flat surfaces (face milling) and the cutting of recesses such as grooves and threads (peripheral milling). The workpiece is usually held on a table while the CNC machining head removes the material.
• In CNC turning, the workpiece rotates while a cutting tool is moved linearly along the surface of the workpiece. This removes material around the circumference to achieve the desired diameter. This technique is mainly used to produce cylindrical elements with external and internal structures such as grooves, cones and threads. Turning processes include drilling, facing, grooving and threading.

Both processes are computer-controlled (CNC) and offer high precision and repeat accuracy.

CNC machining is used in numerous industries as it enables the precise and automatic production of complex parts. Areas of application include the automotive, aerospace and defense industries. Other important sectors include medicine, transportation, oil and gas, the electronics industry and the maritime industry. It is also used in mechanical and plant engineering, measurement technology and biotechnology. The technology is also relevant in the graphics industry, advertising, packaging technology and textile processing, particularly for "CNC digital cutting systems".

CNC machining is suitable for a wide range of products, from simple, high-precision workpieces to complex organic geometries with tight tolerances. Typical products include cylindrical elements such as grooves, tapers and threads (CNC turning), as well as flat surfaces, cavities and recesses (CNC milling).

CNC machining offers significant advantages: it enables very high precision and accuracy, as the movements are computer-controlled. This leads to a reduction in scrap and material losses. Automation shortens production times and minimizes human error.

CNC manufacturing is suitable for both prototypes and series production. It is ideal for one-offs and small to medium batch production thanks to its automation and high repeatability. Companies like FACTUREE can deliver from single prototypes to millions of production parts as their service is scalable. The market share for CNC machining is growing steadily as mass production companies increasingly adopt CNC solutions for the manufacture of high-precision parts. The technology makes it possible to meet high-volume requirements, such as in the medical industry.

CNC production is one of FACTUREE's core competencies. Go to our quotation page and upload your CAD file. The process is easy and intuitive. You can of course also send us an e-mail to quote@facturee.de or get in touch with our contact persons directly.

Online manufacturing has become indispensable these days. Online procurement offers numerous advantages for CNC parts:

• Fast production of made-to-measure CNC parts: Order CNC milling and turning online - often with delivery in 9-12 working days.
• High precision for complex geometries: Ideal for technical CNC parts with the tightest tolerances.
• Cost efficiency for prototypes and series: Favorable unit prices thanks to our smart choice of manufacturers and efficient processes.
• A variety of materials for every requirement: steel, stainless steel, aluminum, titanium or technical plastics - everything can be ordered digitally.
• Flexibility with quantities and variants: Individual parts, variant production or large series - without long lead times.
• Perfect for recurring components: Framework agreements and price stability for series parts or maintenance components.
• Seamless integration into digital processes: Simple upload of STEP files, automatic checking and fast quotation generation.
• Quality control and ISO certification: We work exclusively with manufacturing partners with proven quality and reliable delivery.

Yes, at FACTUREE you can also have individual parts manufactured - quickly, precisely and with no minimum order quantity.

Typical advantages for individual parts:

• Ideal for prototypes, sample parts or small maintenance requirements.
• Fast delivery times - often within 9-12 working days.
• Manufactured from a variety of materials (e.g. steel, stainless steel, aluminum, plastic).
• Simple online procurement: upload your STEP file and receive a quote.

Whether you need a single CNC turned part or a complex CNC milled part - FACTUREE offers flexible online production for one-offs as well as series production.

FACTUREE ensures compliance with shape and position tolerances through a multi-stage, data-supported quality assurance process that is certified to ISO 9001. The process typically includes:

1. Technical inspection: Each inquiry is subjected to a detailed technical feasibility check before production. This involves analyzing the shape and position tolerances required in the technical drawing (in accordance with DIN EN ISO 1101).
2. Qualified manufacturing partners: FACTUREE works with a network of over 2,000 verified manufacturing partners. The selection of the right partner is AI-supported and takes into account their specific technological capabilities and proven experience with the required tolerances.
3. Modern measuring technology: The production partners use modern measuring equipment to check tolerances. Tactile 3D coordinate measuring machines (CMM) or optical measuring systems such as laser scanners are used for complex geometric checks.
4. Documentation and test reports: On request, the measurement results can be made available in the form of detailed measurement protocols or initial sample test reports (EMPB) in order to fully document compliance with the specifications.

This combination of digital process control, careful partner selection and consistent quality control ensures that the CNC parts supplied meet the precise geometric requirements.

Yes, FACTUREE has extensive experience in the machining of difficult-to-machine materials. Thanks to its large and diversified production network, FACTUREE has access to specialists who have the necessary expertise and machinery for demanding materials.

• Titanium: The machining of titanium alloys (e.g. Ti-6Al-4V) is a standard requirement for customers in the aerospace and medical technology sectors, which FACTUREE serves.
• High-strength steels: The machining of high-strength and hardened steels is also part of our range of services, which is essential for toolmaking and mechanical engineering.

The AI-supported selection of the manufacturer ensures that the order is placed with a partner who has proven experience with the specific challenges of these materials (e.g. low cutting speeds, heat development, tool wear).

Yes, FACTUREE can provide material certificates for the components supplied. An acceptance test certificate in accordance with EN 10204 3.1 is a common requirement in professional mechanical engineering and regulated industries.

This certificate is issued by the material manufacturer and confirms the specific test results of the material batch (e.g. chemical composition, mechanical properties). It ensures full traceability and conformity of the material. Customers must specify this requirement when making an inquiry so that the corresponding documentation can be passed on seamlessly from the material supplier to the manufacturing partner and on to the end customer.