Kunaver`s mechanical metal workshop, “Berco” peripheral grinding machine

Floor dimensions: 1100 mm x 900 mm
Weight: about 800 kg,
Rotational speed up to 30 m / s

The "Berco" grinding machine was bought by the Kunaver for sale. It was originally intended for elliptical grinding of pistons of internal combustion engines. It was designed for ordinary circumferential grinding of round parts, most commonly axes, up to 50 mm in diameter and up to 200 mm in length. The grinding shaft is clamped into the clamping head rotated by the electric motor. On the other hand, the hobby supports the workpiece. The grinding wheel is rotated by a second electric motor that drives the workbench's shift mechanism via the transmission. The grinding depth can be adjusted manually and the workbench can be manually or automatically fed.

Kunaver's mechanical metalworking workshop has been operating since 1928 in Rožna dolina in Ljubljana. Her machine park, however, has been changing over the decades. In order to be able to operate at all in this family workshop, individual machines were designed and manufactured by themselves, or purchased and reworked to fit the nature and scope of the work. Some machines from the first half of the 20th century have been preserved to this day, others have been sold. After the workshop was closed ing. Janez Kunaver donated some of the machines to the Technical Museum of Slovenia.

Sound recordist: Boštjan Troha
Photographer: Jaka Blasutto
Sound recordist: Boštjan Troha
Photographer: Jaka Blasutto
Video: Jaka Blasutto, Katarina Batagelj