Moldmaking Technology Magazine
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Temperature Control Unit, Hot Runner Heating Enhance Injection Molding Reliability

Günther debuts a slimmer, more efficient BlueFlow hot runner nozzle and the blueMaster check device to verify operations, now offered with an integrated display for users.  

Grace Nehls, Former MMT Editor

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Günther’s newest blueMaster compact temperature control features an integrated display. Photo Credit: Günther 

Günther Hot Runner Systems Inc. presents its BlueFlow hot runner heating technology, which it describes as significantly slimmer, more powerful and more energy-efficient than predecessors. The company says the BlueFlow hot runner nozzle has faster thermal reactions and is well suited for processing high-temperature resins.

To support molders with process reliability when changing tools, Günther also debuts the blueMaster check device to electronically verify wiring, sensors and more during changeovers. Günther says the device’s measuring electronics are installed in an industrial plug housing, with Bluetooth communications and a battery. The blueMaster check uses a low measuring voltage to determine if a thermocouple is functioning, measure the heating load and give a reading on the polarity of the thermocouples.

Günther says the device checks all contacts against each other, with the diagnostic results displayed on any device, including Android and iOS. These readings can then be saved, exported and archived for documentation purposes. Günther says the blueMaster check’s battery is long lasting and when depleted is chargeable via a standard USB power supply. The transmission power is sufficient to transmit the measurement results to a device over a distance of more than 30'.

Günther has also expanded on the blueMaster compact temperature control device presented at K 2022, offering a new version with an integrated display for users that didn’t want to use a smart device to access the device. The company also introduces 8/10/12 SMT and NMT hot runner nozzles from 50-200 mm (2-8") with conventional heating. Günther says the position-safe fixed heating enables precise temperature control in a space-saving design.

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