Manufacturer special parts for various sectors

Manufacturer of special parts

BONIONI is a specialist in hollow and asymmetrical parts, which are used daily all over the world for automotive, electrical, mechanical and hydraulic equipment.
Every day, we push the limits of our processes to provide you with optimized components.
Cold heading is not just a technique, it is a way to optimize your parts: more economical and more resistant than machined or turned parts.


Steel, brass, copper, aluminum, stainless steel, bronze, nickel silver. We also offer green steel special parts.

Stamping on double-stamping presses and on transfer presses up to 6 stations

Compliant with the European Directive 2002/95/EC (RoHS)


Diameter 1 to 36 mm, maximum length : 180mm – Ø wire 1 to 24 mm



Hollow parts, groove, square, flat, shape cutting, eccentric


Secondary operations

Rolling, machining (turning, milling, drilling, tapping, grinding…), assembly


All heat treatments

hardening, carbonitriding, carbo-hardening, induction hardening, etc.


All surface treatments

galvanization; zinc-nickel; zinc-iron; phosphating, lamellar coatings