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Mill City Roasters machine versions

The following article should help you to identify your Mill City Roasters machine version.

Written by Nikolett Takacs

Updated at July 31st, 2025

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Table of Contents

Version 1 | Phidgets only Version 2a | Phidgets/Shihlin controls Version 2b | Phidgets/Delta controls Version 3 | Phidget/Delta Control with Data port Version 4 - MCR Series (with data port)/Digital control panel - Digital Control Roasters Version 5 - Standard control panel (Delta/Fotek controls) - Manual Control Roasters

There are six different connection options for Mill City Roasters.

Version 1 | Phidgets only

  • Roast machines with a capacity from 500g to 20kg, manufactured between 2013 and 2018
  • Roast machines with capacities from 500g to 3kg, manufactured from 2019

Version 2a | Phidgets/Shihlin controls 

  • Manufactured between 2017 and 2018
  • Machines come with Phidget and Shihlin controls
  • USB port on the back

Version 2b | Phidgets/Delta controls

  • Manufactured between 2017 and 2018
  • Machines come with Phidget and Delta controls
  • USB port on the back


Version 3 | Phidget/Delta Control with Data port

  • Roast machines with a capacity from 6kg to 15kg, manufactured between 2013 and 2018
  • Machines come with a Phidget and serial port on the right side of the control box


Version 4 - MCR Series (with data port)/Digital control panel - Digital Control Roasters

  • Roast machines with a capacity from 6kg to 60kg, manufactured as of 2019.
  • Data port left to the controls.
  • DTech DT-5019 serial port converter that comes with the roast machine.
  • Roast machines with a capacity from 1.5kg to 3kg, manufactured as of 2020.
  • Data port on the right side of the control box.

Version 5 - Standard control panel (Delta/Fotek controls) - Manual Control Roasters

 

  • Roast machines with a capacity from 500g to 3kg with a Standard control panel manufactured from 2020 to 2022.

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