Established in 1946, Prosino S.r.l. has been
producing spinning and twisting rings from its
very beginning. The company started its
industrial activity in the town of Borgosesia,
that has been successfully used for the trade
name "BORGOSESIA RINGS". The production
of rings is increased step by step every year
and the reliability of the products has made
possible to become the most important ring
producer world-wide.

Prosino S.r.l. is now an OEM producer for
the most important spinning frames makers
such as RIETER (Switzerland), ZINSER
(Germany), MARZOLI (Italy), COGNETEX
(Italy), KTTM-KIRLOSKAR (Japan-India),
GAUDINO (Italy) and DELPIANO (Italy).

Our "Borgosesia Rings" are also supplied
to more that 200 spinning mills world-wide,
that have found Prosino S.r.l. a reliable
company with high quality products at very
reasonable prices.

The company has also succesfully started a
division of contracted third party customers
order for high precision turnery products
(mainly internal and external rings for ball
bearing manufacturers).

This family owned business, now at its third
generation, is now producing up to 6'000'000
rings per year. These results have been
achieved by endless efforts to increase the
productivity adopting the most innovative
production technologies. The complete
production cycle from the raw material (steel
tubes) to the final products it is done internally
with a special care for the working details that
have been proved to be the key of the
consistency of our products quality.