Project Description

280℃ Thermal Oil Temperature Control Unit

— LEOT Series

About the unit

The oil temperature controller LEOT series is designed to work with a wide range of high temperature application up to 280 ºC, which are used for controlled heating of products, mechanisms and factory machinery in a wide range of industries, including chemical reaction and casting industry etc.

High temperature oil from the mould is returned to the cooling tank and cooled by indirect cooling. It is the pressurized by the high-pressure pump, sent to the heating tank and finally to the mould with a constant temperature.

LEOT Series oil temperature control unit
Agitator tank temp. control

Main specification

Temperature rage: Inlet water temp +45℃~280℃
Heat transfer medium: Thermal oil
Heater power: 18~500 kw
Pump power: 1~30 HP
Main application: Casting | Chemical reaction | Hot pressing


  • High precision ±1°C controlled
  • Return oil temperature display
  • Omron, Fuji, LG, Siemens, Schneider brand electrical equipment
  • Microcomputer control system
  • Automatic exhaust function for start-up
  • Heating power switching function
  • Improved safe protection and fault indication, easy operation for maintenance
  • Isolated type electric control box prolong the service life of electric appliance
  • By-pass pressure relief loop

Available option

  • Power supply : 220~480V, 50/60Hz
  • Air blowing and return oil function
  • Instant cooling and shut-down function
  • Multi-point temperature control unit can be customized
  • RS 485 communication function for remote control
  • PLC control system and touch screen
  • Explosion-proof equipment

Function security

  • Abnormal temperature protection
  • Reverse phase protection of power supply
  • Short circuit protection
  • Pump overload protection
  • Oil shortage protection
  • Abnormal heating protection
  • Pipe clogging protection
  • Abnormal pressure stops heating protection
  • Automatic exhaust protection


  • Casting mould
  • Rubber vulcanization
  • Wheel temperature control
  • Hot press technology
  • Carbon fibre product
  • Chemical reaction


Temp. control rangeInlet water temperature+45 ℃~ 300 ℃
Temp. control accuracyPID±1 ℃
Power supplyAC3Ф380V 50HZ (220~480V, 50/60Hz for option)
Heat transfer mediumThermal oil
Cooling methodIndirect cooling
Heating powerKW12/1818/2418/2418/2430/40 50/60 80/100120/150
Pump powerHP123457.51015
Flow rateL/min35110165210265300500750
Pump pressureBar1.51.822.22.62.834
Max power consumptionKW13/1920/2621/2721/2734/4456/6688/108132/162
Expansion tank capacityL353535509090200200
Cooling water pipe Inch1/21/21/21/21111
Circulation oil pipe Inch111-1/21-1/21-1/2222-1/2

Note: The specification is subject to change due to product improvement without prior notice.

Application showcase