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D-RU | D-SCU
Retraction unit

Pneumatic retraction unit for safe retraction and extension of the furnace camera as required and automatically in the event of a cooling failure. Used in conjunction with the sensor control unit, the D-RU offers maximum protection of the furnace camera.


Functionality: Pneumatic retraction unit

  • Integrated air tank for safe extension in the event of air supply failure
  • Linear cylinders for long traverse distances
  • Air and water-cooled versions
  • Can be used at an ambient temperature of up to 80 °C
  • Control and monitoring via D-SCU
  • Protection of the furnace camera by automatic extension in the event of cooling failure
  • Easy cleaning of the furnace camera and sapphire window
  • Cement industry: Monitoring of the sintering zone and main burner flame
  • Visualization of the combustion process in rotary kilns (e.g. hazardous waste incineration, sintering plants)
  • Visualization of combustion in power plant boilers with coal, oil or gas combustion
  • Retraction unit
  • Sensor control unit
Brief product descriptionInsert and retract of furnace camera
Traverse distance700 mm (D-RU … 700)1,100 mm (D-RU … 1100)
Compressed air5 … 10 bar
Ambient temperature-30 … +60 °C+80 °C to combustion chamber
MaterialProtection flap: Stainless steel 1.4571
Brief product descriptionControl of the D-RU by PLCConversion: Ethernet/FOC
Electrical data100 … 240 V~50 … 60 Hz200 VA
Ambient conditions-20 … +55 °C
Degree of protectionIP65/IP66
ConnectionsFOC: 2 x LC 1x M12-NW + 1x M12 PowerD-RU: 1x Harting 16 pin
DimensionsD-SCU IP: 380 x 600 x 230 mmD-SCU 50: 380 x 380 x 230 mm
WeightD-SCU IP: Approx. 20 kgD-SCU 50: Approx. 15 kg
  • Recommended
D-RU cable
Welding plate