The following article should help to identify your Mill City version.
There are five different connection options for Mill City Roasters.
Version 1- Phidgets only
- Roast machines with capacity from 500g to 20kg, manufactured between 2013 and 2018
- Roast machines with capacity 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 controls (with data port)
- Roast machines with capacity from 6kg to 15kg, manufactured between 2013 and 2018
- Machines come with Phidget and and serial port at the right side of the control box
Version 4 - MCR Series (with data port)/ Digital control panel
MCR series as from 2019
- Roast machines with capacity from 6kg to 60kg, manufactured as from 2019
- Data port left to the controls
- DTech DT-5019 serial port converter that comes with roast machine
Digital control panel as from 2020
- Roast machines with capacity from 1.5kg to 3kg, manufactured as from 2020
- Data port at the right side of the control box
Check out the Mill City setup manual for more information on how to connect your Mill City with Cropster.
Version 5 - Standard control panel (Delta/Fotek controls)
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Roast machines with capacity from 500g to 3kg with a Standard control panel, manufactured as from 2020 to 2021.
If you have a Version 5 Mill City roast machine, visit the following setup manual: Mill City with Delta/Fotek controls - Roasting Intelligence (RI) Setup (beta)