FOR SALE: used Centroid CNC controls

We have 3 used model M400 Centroid CNC control packages for sale. These are the controls with Centroid industrial PCs, electrical cabinets, servo drives, servo motors, spindle drives, and accessories like cabling and MPGs. Ready for you to install to upgrade CNC controls on your knee mill, VMC, HMC, HBM, or lathe!

FOR SALE used Centroid M400 CNC control package for small mill, DC servosFOR SALE used Centroid M400 CNC control console for small mill, DC servos FOR SALE used Centroid M400 CNC control package for large mill, AC servos

Read more about these M400 CNC systems at Centroid CNC

We acquired these in 2021. Since Centroid CNC controls rarely shows up on the used equipment market, this is a pretty unique opportunity.

Two are from knee-mills like a Bridgeport or small VMC. One is a much larger system with serious AC servos for a big VMC, HMC, HBM, etc. These could also be changed to use on lathes, but they have 3 axes right now.

More details are below. Contact us to discuss!


These Centroid control packages were purchased and retrofit around 2015-2016 and used in a clean mold shop, mostly cutting graphite. There were installed by a very experienced Centroid tech rep out of the Pittsburgh area. We were told the three systems cost $65,000 to retrofit then.

All components are in clean, dry, temperature-controlled storage with forklift access. CNC control consoles can be demonstrated under power, but entire systems are not assembled.

Large Centroid CNC Mill Control Kit

The large Centroid CNC control package has:

  • Large arm system with Centroid PC and LCD control console
  • Centroid CNC control package, model M400
  • Set up for CNC mill use, but could be converted for lathe, plasma cutter, CNC router, or other application with software change
  • Centroid Intercon conversational programming with graphics
  • Centroid electrical cabinet, factory wired
  • three Centroid/SEM AC servomotors, 11.5 N-m stall torque (UK made)
  • three Centroid AC/DC-30 servo drives
  • Yaskawa F7 spindle drive VFD (31 amps output)
  • Includes all salvaged Centroid cabling, timing belt pulleys, belts?
  • Control units are powered periodically to protect SSDs
  • Include unlimited program size option for profiling
  • Note: no ATC installed, but Centroid rep says no problem adding it
  • Removed, packed, transported, stored by experienced techs!
FOR SALE Centroid (SEM) AC servo motors
Centroid (SEM) AC servo motor example

Small Centroid CNC Mill Control kits (2x)

The small Centroid CNC control packages have:

  • Arm system with Centroid PC and LCD control console
  • One system has inoperable Centroid touchscreen (PC/LCD works)
  • One system has operable Centroid touchscreen
  • Centroid CNC control model M400 (All-In-One boards)
  • Set up for CNC mill use, but could be converted for lathe, plasma cutter, CNC router, or other application with software change
  • Centroid Intercon conversational programming with graphics
  • Centroid electrical cabinets, factory wired
  • three Centroid DC servomotors, ? N-m stall torque
  • Centroid DC servo drives (built in to control boards)
  • DURApulse Spindle VFDs (AutomationDirect.com)
  • Handheld MPG included
  • Includes all salvaged Centroid cabling, timing belt pulleys, belts?
  • Control units are powered periodically to protect SSDs
  • Unlimited program size option for profiling
  • Note: no ATC installed, but Centroid rep says no problem adding it
  • Removed, packed, transported, stored by experienced techs!
  • Packages like this now list on ebay for over $18000 new~!
FOR SALE used Centroid M400 CNC control console for small mill, DC servos
Centroid CNC control for small mill or lathe, with touchscreen

Bostomatic Tooling

Some tooling and the large spindle from these Bostomatic CNC mills is available. Drop us a line for details.