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STM-W series water heaters have both standard and high temperature models, which are used to heat up the mould and maintain temperature, although they can be used in other similar applications. High temperature water from the mould is returned to the cooling tank and cooled by either indirect cooling (For high temperature and high temperature plus pressure models) or direct cooling (For standard models). It is then pressurised by the high-pressure pump, sent to the heating tank and finally to the mould with a constant temperature. The OMRON temperature controller can maintain an accuracy of ±0.5℃.

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Additional information





  • Controller adopts 3.2 ” LCD for easy operation.
  • Equipped with the design of 7-day automatic start/stop timer. LCD screen can be converted between Chinese and English. The unit of temperature can be converted between oF and ℃.
  • P.I.D. multi-stage temperature control system can maintain a mould temperature with an accuracy of ±0.5℃.
  • Adopts high efficiency water cycle pump, which can meet the demands of temperature control for precise moulds and mould loop with minor diameter to achieve precise temperature control and high efficiency heat exchange. Pump inside adopts stainless steel to avoid explosion.
  • Multiple safety devices including power reverse phase protection, pump overload protection, overheat protection and low level protection that can automatically detect abnormal performance and indicate this via visible alarm.
  • For standard STM-W, the heating temperature can reach 120℃, while for STM-PW, it can reach 160℃.Equipped with high pressure protection, safety pressure relieving, automatic water supplying and air exhausting.
  • STM-PW adopts indirect cooling, which makes temperature control more precise. The low viscosity of water realizes fast heat exchange.
  • STM-PW series adopts magnetic pump with stable performance and no leakage, suitable for applications which need long time heating and temperature maintaining.
  • Water manifolds and Teflon hose are optional.
  • Water-removing function of air blowing is optional for STM-W standard machine.
  • All models can opt for magnetic pump except for STM-3650W series.
  • RS485 communication function is optional. Display of mould temperature and mould return water temperature is optional.

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