Monzesi, today, is one the main manufacturers in the world of high precision grinding machines, specifically for:

  • Centerless grinders – Monza division;
  • Double disc grinders – Viotto division;

Monzesi’s mission is to achieve the perfection in grinding, continuing a long tradition of innovation in engineering and customized solutions supplied to a large number of customers worlwide.

A century of experience. A piece of history in the machine tool industry. Much more than a plain machine tool builder.

This is what today Monzesi represents, in its continuous production of centerless grinders and double disc grinders. This is what Monzes has been in the past, and what it will be for the future generations.

The MONZA models Line 20 are built upon the foundation of main characteristics which have been distinguishing the Monzesi centerless grinding machines for almost a century: strength, ergonomics and reliability. The main technological innovations of the Line 20 models:

  • The INFEED slide system has been modified allowing it to arrive closer to the Grinding Wheel Housing. The design improvement offers added strength, as well as full support under the workrest when grinding very small diameters and also when the grinding wheel is running at its smallest useable diameter.
  • The dressing process, in the versions where the translation is not controlled by full CNC, is controlled by an electric motor. All hydraulics have been removed from the dressing functions.
  • The FULL CNC Dressing versions have the option of designing and controlling complex wheel profiles directly on the machine using our latest CAD/CAM graphical software.
  • All the machine axis motors use DIGITAL DRIVES (transducers). The Grinding wheel motor is availble with Constantant Peripheral (Surface) Speed (CSS), as well as Automatic Wheel Balancing (AWB).


Monza 320 Monza 420  Monza 520/250 Monza 620/350 Monza 620/500
Grinding Diameter Range (with standard accessories) 3 ÷ 50 mm 3 ÷ 100 mm 3 ÷ 150 mm 3 ÷ 200 mm 3 ÷ 200 mm
Maximum infeed lenght 100 mm 200 mm 250 mm 355 mm 500 mm
Grinding wheel size (ODxWxBORE) 305x102x127 mm 406x204x152 mm 508x250x254 mm 610x355x305 mm 610x500x305 mm
Grinding wheel speed (standard) 25 – 50 m/sec 25 – 50 m/sec 25 – 50 m/sec 25 – 50 m/sec 25 – 50 m/sec
Grinding wheel motor 7,5 kW 15 kW 22 kW 37/45 kW 45 kW
Regulating wheel size (ODxWxBORE) 204x102x80 mm 254x204x115 mm 305x250x127 mm 355x355x140 mm 355x500x140 mm
Regulating wheel variable speed 0 ÷ 265 rpm 0 ÷ 265 rpm 0 ÷ 265 rpm 0 ÷ 265 rpm 0 ÷ 265 rpm
Regulating wheel brushless motor 8 Nm 8 Nm 8 Nm 18 Nm 18 Nm