Digital speed control designed for ®Middleby Ovens - Replaces: 64149, 37337 and 60542



We designed the CTI Speed control to be the most robust, bullet proof motor controller available. The design of this oven control was a culmination of:  design requirements,  feedback from oven rebuilders and lessons learned from rebuilding over 500 controls.  The CTI conveyor control cannot be damaged from failures of other oven components or even serious abuse (when wired properly). The control monitors for over current, ambient temperature, speed sensor problems, bad sensor wiring, and failure of the user interface.  The CTI-M-DigSpd motor speed control has been in production for over 12 years. The control was designed and is still built by our staff at Cybernetics Tech Industries. Our lead Engineer has over 30 years experience as an Engineer in both hardware and software.  We feel this is the most robust oven control for pizza ovens in the market. The diagnostic capabilities aid in solving oven conveyor problems; no blind swapping and no guessing of the cause of the conveyor failure.


 ®Middleby Marshall  31020
 ®Middleby Marshall  37337
 ®Middleby Marshall  45133
 ®Middleby Marshall  28074-0004
 ®Middleby Marshall 28074-0012
 ®Middleby Marshall  28074-00180
 ®Middleby Marshall  42810-0133
 ®Middleby Marshall  58323
 ®Middleby Marshall  64149
 ®Dart Micro Drive


  Product ID: CTI-M-DigSpd
  Description: DC Motor Speed control
  Motor Voltage: 90 or 130 V DC
  Motor HP: 1/50 to 1/8HP
  Price: $250


Digital Speed Controller Replacement for 64149

  • Dip switch settings for Middleby ovens
  • Manual adjustment mode for nearly all conveyor ovens   Download the Manual-Mode Instructions (PDF)
  • Smart Control - Indicates current errors and previous errorsl
  • Over current and stall protection.
  • Bullet Proof Design -
    1. Short circuit on motor terminals (bad motor) will not damage control.
    2. Short circuit on speed sensor will not damage control.
    3. Lead reversal on speed sensor will not damage control or sensor.
    4. Short circuit (liquid) in/on display, will not damage control or display.
    5. Temperature monitor - Warns of over temp condition
  • Soft Start & Torque sense circuit greatly reduces damage to conveyor belt and motors (from conveyor jams)
  • Built-in error logging, diagnostics and status display.
  • Additional features:
    1. Over current shutdown
    2. Bad speed sensor diagnostics
    3. Test mode for conveyor & motor health
    4. Display mode for axial fans efficiency & health
    5. Error Logging - allows for remote diagnosis (over the phone). Fix oven on first trip.
    6. Manual adjustment mode allows calibration of the time display for  use in non Middleby conveyor ovens.
  • Engineered and built in the USA by Cybernetics Tech Industries(CTI)
  • In production since 2003 (over 12 years)
  • Call and talk to the design engineer. We can solve any conveyor/motor/speed problem