Yokes
simple, ring, double and shank
The work that made Silfas a reference for cardan and constant-velocity joints, above all in the agricultural sector.

From Rivara, in Canavese, we forge yokes for cardan and constant-velocity joints, and gears and shafts for gearboxes.
Rivara (TO) · Silfas Group · Cisar S.r.l.
From steel bar to shipping: the path of a Silfas part through the plant. Scroll to follow it.
Steel bars are cut to size in the shearing department.

The steel reaches forging temperature and turns orange.

Six forging lines, from 1000 to 2500 tonnes. Hot forging has been Silfas’s craft since 1950.

On the 2000 and 2500 tonne automatic lines, robots handle the glowing part.

Drilling, deburring, part cooling and final blasting.

Machining with Biglia, Okuma, Mazak, Farmar and Hyundai machines.

Parts leave the Rivara plant.

From the 1000 tonne press to the 2500: the length of each bar is proportional to the force.
3D modelling with SolidWorks, Hexagon CMM measuring systems with PC-DMIS, portable measuring arms and laser tracker, QForm simulation of hot forging processes.
Two vertical machining centers, two horizontal lathes, two Rovella EDM machines and a TIG welder.
Three Valdarno CESUS 80, 100 and 130 shears.
simple, ring, double and shank
The work that made Silfas a reference for cardan and constant-velocity joints, above all in the agricultural sector.

for gearboxes and mechanical components
In recent years the range has extended to gears and shafts for gearboxes, bevel-wheel rings, flanges, hubs and planet carriers.





Parts from 0.5 to 18 kg, in iron, stainless steel, quenched-and-tempered and case-hardening steel. For agriculture, earthmoving, heavy vehicles and hydraulics.
Presses, robots and numerically controlled machines work alongside the people who run them: about 51 people, 14 white collars and 37 blue collars.





Silfas has forged hot steel since 1950. Hot forging is one of the excellences of Canavese, recognised around the world.
For over seventy years this family-run company worked mainly for the agricultural sector, making yokes for cardan and constant-velocity joints. Today it has widened its range while keeping the specialisation that made it a leader: gears and shafts for gearboxes.
Silfas 1, the historic plant, covers 7,500 m² (2,800 m² covered). Silfas 2, the new plant, covers 25,000 m² (7,000 m² covered).
Silfas is part of the Silfas Group, together with Cisar S.r.l.


DNV certifications for hot forging of steel parts: ISO 9001:2015, ISO 14001:2015 and ISO 45001:2018.
Integrated policy for quality, safety, environment and energy (PDF, Italian) All certificationsFor enquiries and information, write or call us.