Industrial subcontracting

Industrial subcontracting

CNIM Systèmes Industriels is an expert in the industrialization and manufacture of large-scale, high added-value equipment for cutting-edge industries. It offers subcontracting services including large-scale machining (milling, turning, boring), electron beam welding and clean room integration.

In addition to this know-how, CNIM Systèmes Industriels also offers large-scale metrology services, achieving accuracy of a few microns for parts several metres long, as well as special processes such as large-scale flow-turning or the shaping of high-performance composites and polyurethane.


years of electron beam welding


machining centers


3D controls machines for large-size parts

Advanced Mechanics

For almost 20 years, CSI has manufactured, controlled and has integrated large mechanical systems for demanding applications in the semiconductor and military nuclear industries.

Our solutions

Product and process engineering

From systems design to on-site delivery, CNIM Systèmes Industriels accompanies its customers throughout the whole project life cycle. It defines and develops the appropriate technologies and processes that will guarantee performance, best cost solutions and operational safety.
Our projects are characterized by a high level of complexity.

Our solutions

Clean room integration

Cleaning at the particulate level, assembling in ultra-cleanliness, washing large parts, mass-manufacturing and integrating... all this know-how is key in CNIM Industrial Systems' subcontracting offer. Our clean and gray rooms cover an area of more than 2,800 sqm and are ISO 5 to ISO 8 certified.

Our solutions

Large dimension metrology

CNIM Systèmes Industriels' challenge is to guarantee perfect manufacturing of large parts. In industrial subcontracting as well as for our own products, our highly qualified teams (up to COFFMET 3) ensure very demanding quality controls and reach unique levels of precision thanks to the latest generation three-dimensional measuring machines.

Our solutions

Electron beam welding

Thanks to its 230m3 welding enclosure and more than 30 years of expertise in the field, CNIM Industrial Systems offers subcontracting electron beam welding of large parts intended for cutting-edge sectors.

All of our welds are subject to demanding quality control, our team is certified to the highest COFREND levels.

Our solutions

Large dimension machining

Manufacturing according to the most demanding standards and codes in the industry (RCCM, ASME, CODAP, ESPN, etc.), CNIM Systèmes Industriels offers large dimension machining subcontracting for parts with high added value / complex / exposed to harsh environment.
Discover our offer for large dimension parts in high speed milling / milling, turning and boring.

Our solutions


CNIM Systèmes Industriels offers co-design and manufacturing for large composite components. They meet very high requirements: resistance to high mechanical stresses, weight gain, resistance to corrosion or to radioactive / neutron fluxes, etc.

Our solutions