When tolerances are measured in microns, CNC machining is the definitive answer. At Exella, we transform your 3D project into reliable, ready-to-assemble components, ensuring maximum mechanical reliability on miniaturized parts where even the slightest deviation makes a difference.

What is CNC machining (Milling and Turning)?

TheCNC machining(Computer Numerical Control) is a manufacturing process for chip removal in which automated, computer-controlled machinery carves a solid block of metal to achieve the desired geometry. Through advanced turning centers (for cylindrical parts) and milling (for complex shapes), this technology allows for the production of three-dimensional components with hundredths or thousandths tolerances and extremely high-quality surface finishes.

The advantages of our CNC micromechanics

We manage every phase of the process internally, ensuring rigorous quality control on the most demanding mechanisms:

• Ultra High Precision:Extremely tight dimensional and geometric tolerances to ensure perfect mechanical fits.

• Specialization in Miniaturization:We are experts in the production of complex small parts such as micro-screws, micro-gears, pins, and bushings.

• Superior Finishes:Advanced tooling allows us to achieve smooth and shiny surfaces, minimizing the need for additional polishing operations.

• Absolute Repeatability:CNC programs ensure that the first piece and the ten-thousandth are absolutely identical.
  
  

Main application sectors

Our technology is the benchmark for sectors where mechanical reliability is critical:

• Micromechanics and Electronics:Heat sinks, special connectors, shafts, and micro-fastening screws.

• Railway and Dynamic Modeling:Drive shafts, precision gears, rims, and wheels (such as for theFS 207 Sogliola Kit), hinge pins.

• Watchmaking and Eyewear:Tiny structural components, custom screws, hinges, and buttons.

• Musical Instruments:Adjustment keys, bushings, and fluid mechanisms for wind instruments.
  
  

CNC Machinable Materials

Request a quote for CNC machining

The cost of CNC milling and turning mainly depends on themachine timerequired, and thecomplexity of the component.(number of axes required for processing) and frommaterialchosen.

Send us your 3D CAD file (STEP, IGES) or your quoted 2D technical drawing. Our technical department will analyze the project to calculate the necessary tooling and provide you with the best quote.

👉 Upload your files and calculate the price

Frequently Asked Questions (FAQ)

What is the difference between CNC turning and milling?

Inturning, the metal piece rotates on itself at high speed while a fixed tool shapes it (ideal for cylindrical parts like pins, bushings, or wheels). Inmilling, the metal piece remains stationary while the tool rotates and moves along various axes (ideal for carving and shaping complex three-dimensional geometries). Often our machining centers combine both functions.

When should I choose CNC instead of micro-casting?

CNC is essential when the project requires threaded holes, extremely tight tolerances (precise fits between two parts), mirror-like surface finishes without further treatments, or when using alloys (like some aluminum variants) that are not suitable for casting.

Do you produce single pieces or only in large series?

CNC technology requires an initial setup time (machine programming and tool preparation) that affects costs. However, we are structured to competitively handle both rapid prototyping (small batches) and large-scale industrial production.