TEMPERATURE CONTROL | TECHNOLOGY


Industry 4.0 capability and a ‘heater-break’ alarm output which will sense if the heater is damaged and alerts the operator.” According to the company, the MC5 series of mould temperature controllers is also a smaller design, making it 27% lighter with a 23% smaller footprint than previous models. With castors in the base, it can easily move from one machine to the next. A new solenoid cooling valve is now located outside the cabinet so it is easier to maintain. With solid state relays in the heater control and all critical internal components constructed from stainless steel, Matsui says that the entire unit is virtually maintenance-free. The new MC5 comes in three sizes with both standard (G1) and advanced (G3) designs for use with low temperature (up to 95°C/203°F) or high temperature (up to 120°C/248°F) water. G3 units offer more programming features as standard. The control panel features a large LCD character display that is visible even in bright lighting conditions. It allows up to 64 different temperature settings to be stored and can detect heating and cooling errors. The heater and pump sizes are optimised for performance, minimising energy consumption. The unit’s control software and circuitry reduce heater ‘on’ time by up to 8%, increasing energy savings.


Compact units German company GWK Gesellschaft Wärme Kältetechnik has introduced new compact water temperature control units Teco CS and CD for temperatures up to 225°C, as well as the cold water temperature control unit Teco CW from 0-25°C. The company says that the series offers high quality technology in a modern design with high availabil- ity, simple operation, ease of servicing and potential individualisation, as well as the adapta- tion of expansion stages for comprehensive process monitoring and the requirements of Industry 4.0. The new series is available as E- and T-devices. The E-devices, including the models Teco CS 90e.1 and Teco CS 180e.1, are cost-effec- tive basic devices. Their basic equipment includes the GWK BasicControl microprocessor controller with a display of the set and actual temperatures, an automatic refill system, automatic mould draining and an energy-saving continuous heater


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control. For individualisation, GWK offers different interfaces, customised colours and lettering, mounting on castors, rubber buffers or rails and other options. The T-devices are fitted with the new GWK


CompactControl controller with a fast 32 bit processor. It has the proprietary GWK Logotherm display and control unit with a 7-inch touch screen. It is separated from the processor board, as well as the inputs and outputs, for improved safety and reliability. The top end controller is the GWK ModulControl where the inputs and outputs can be chosen freely by way of circuit boards with different equipment. All units include a flow measurement system and the values are displayed together with the set and actual temperature values on the colour screen. Temperature development is represented


graphically following selection of the


corresponding menu function. The symbols on the start screen can be


tapped to select other useful features, such as limit monitoring function and leak stop mode. In order to ensure optimum operational safety and reliabil- ity, a service screen provides information about maintenance intervals and tips. With the Teco CW system, GWK offers patented


cold water temperature control units that can be operated without glycol in a temperature range of 0-25°C. The user can choose between two models that differ in terms of their cooling and recircula- tion capacity. Precise microprocessor control with simultaneous indication of set-points and actual values, easy single-button operation, optional inter- faces on the front panel of the unit, a port for external sensors, a splash-proof electrical system and the supply cable with a CEE plug for direct connection ensure that the unit is immediately ready for operation. Standard features include a leak stop mode, mould draining function, audible alarm, automatic filling and refilling, an additional manual filling option for conditioned water, a dirt trap in the cooling water connection and wetted parts made of corrosion-resistant materials. The circulation water is cooled down to the


required low temperature directly inside the unit near the mould. The heat of the mould is trans- ferred to the cooling water of the hydraulic cooling system of the injection moulding machine. The series of units cover a wide power range so that, apart from the cooling of individual mould zones, it


June 2019 | INJECTION WORLD 43


Left: Matsui MC5 G1 controller


PHOTO: MATSUI


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