Single-Temperiertechnik Alternating Temperature Technology (ATT)
Single-Temperiertechnik Alternating Temperature Technology (ATT) Open

Alternating Temperature Technology (ATT)

Variotherm temperature control used in combination with suitable mould inserts allows variations in temperature of more than 100 °C in critical areas or in complete moulds. In order to achieve this, the SINGLE ATT system operates with two separate circuits that contain thermal fluid with a different temperature. Both ATT circuits contain the same fluid. Water is recommended for temperatures of up to 200 °C, while oil is suitable for applications that operate with temperatures of up to 300 °C.

Areas of application

  • Injection moulding of thermoplastics
  • Production of components made from fibre-reinforced composites
  • Other cyclic processes with temperature profile

Standard equipment


  • Temperature control system with one heating and one cooling circuit and circuit switch
  • Fast alternation between heating and cooling circuit thanks to hydraulic switching
  • Energy-saving temperature-controlled feeding of return fluid into the  corresponding circuit
  • Easy operation with touch screen
  • Connection to standard moulds
  • Rugged, powder-coated steel sheet housing


  • High-quality materials and reliable components
  • Wear-free flow metering and flow monitoring
  • Hose connections between system and valve station

Electric and control equipment

  • Programmable logic controller with touch screen
  • Heating control by solid state relay with fail-safe pilot contractor
  • Electronic safety temperature limiter
  • Switch box to IP54


  • Remote control via remote touch screen or via Ethernet-based PC
  • Connection for 20 mA current loop (TTY)
  • Hose connections between valve station and mould
  • Data logging via integrated USB interface

Data sheet