GL3V Roller Mill Conversion


The GL3V rollermill was manufactured in Padova, Italy, from 1991 until 2001, in various versions. The machine was sold in many countries, and with great success many of these units remain in operation today. It was the first production rollermill to have a “gull-wing” opening top offering easy access to rolls for fast roll changes. It was also the first rollermill to offer variable speed feed rolls.

The rollermill was produced initially as a fully electronic machine, and later as an optional pneumatically controlled machine. Both versions survive today, with the electronic unit being the most popular and prevalent of these. Unfortunately, the electronics were custom designed and produced for the machines, and the various PC boards and components pf the control system are no longer readily available. The pneumatic version was less reliable and hard to set up.

Mechanically these machines have proven to be extremely reliable work horses, and are well appreciated by the millers that use them.

To keep these units in top operating form, CETEC has developed a conversion kit, to update the GL3V to 21st century electronics and on board componentry. This includes a touch screen control interface, variable speed electric gear motors, a load cell based feed sensor, and a PLC panel to replace the old control system.

Why the CETEC conversion kit?

The CETEC developed GL3V conversion kit is designed by millers, for millers. Its components are top quality, reliable and durable.  The kit is simple to install, coming largely pre-wired with rated dust proof quick connect plugs to facilitate installation.

The kit is installable on a rollermill in 4 – 6 hours, depending on experience. CETEC technicians can help in the first (or all) installations, and train mill maintenance staff to perform the kit installation on maintenance days.


  • Feed roll speed sensor for units that did not have this as standard
  • Custom feed sensor location
  • On board or remote VFD’s (inverters)
  • Single or double side control
  • Direct coupled drives
  • VFD


  • Allen Bradley PLC
  • Touch screen user interface
  • SEW feed roll gear motors
  • Custom fabricated control panels
  • Load cell feed sensor
  • On-Boards Variable frequency drives


  • Readily available spare parts
  • Reliable
  • Customizable
  • Extends life of existing capital equipment
  • Durable