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Products Temperature Controllers ROH Series Hot Oil Temperature Control Units

Hot Oil Temperature Controllers

Oiltherm ROH Series

Oiltherm ROH Series hot oil temperature control units are designed to work with a wide range of high temperature applications in the 125°F to 575°F (52°C to 302°C) range. The Oiltherm assures high velocity oil flow across heater elements for optimum heat transfer and fluid life. The oil is preheated to reduce viscosity before allowing the pump to run. A PLC controller allows customized settings for daily start/stop times and a temperature deviations alarm and a password lockout protects temperature set point.

Hot Oil Temperature Controllers


  • 12 kW to 96 kW
  • Magnetic driven pump without wear-able mechanical seals
  • 3.5" touchscreen controller
  • Up to 8 ramp programming "recipes" with up to 8 steps each for heating and cooling scheduling
  • Supports various interfaces, including TTY, Ethernet IP, and Profibus
  • Automatic oil preheat to 100°F (38°C)
  • Low watt density stainless steel heater elements provide long life and built-in standby
  • Heat shield and control cabinet fan cooling protects hot oil temperature control systems and pumps
  • Convenient oil fill location allows oil to be added without removing cabinet
  • Oil level safety prevents operation under low oil conditions
  • Stainless steel reservoirs
  • Stainless steel heat exchanger connections for corrosion free operation
  • High temperature safety at 660°F (349°C)
  • Dual reservoir system includes operating and expansion reservoirs
  • Complete insulation of oil circuit and operating reservoir maintains temperature and saves energy
  • Premium quality solenoid valve assures precise temperatures
  • Easy access cabinet with removable top/side panel
  • Four swivel casters make unit easy to move

Available Options

  • Vacuum operation for draining mold at shutdown
  • External temperature sensor
  • 5 or 55 gallon drum of oil

Oiltherm ROH Series temperature control units includes a 3.5" touchscreen and PLC controls.

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ROH series controller