Heating of hot runner nozzles in plastic injection molding

hotslot Nozzle Heating Elements

The hot­slot is a heat­ing el­e­ment for heat­ing hot run­ner noz­zles for plas­tic in­jec­tion mold­ing. It is based on the proven tech­nol­o­gy of the “hot­spring Mi­ni” and “hot­spring Mi­cro” coiled tub­ing car­tridges, which are pressed in­to a brass car­ri­er tube.

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hotslot Nozzle Heating Elements

Due to its low wall thick­ness, start­ing at 1.5 mm for the hot­slot Mi­cro, the hot­slot al­lows min­i­mum nest dis­tances. In ad­di­tion to the con­nec­tion de­signs, anal­o­gous to the hot­spring coiled tub­ing car­tridge, the course of the groove for the heater to be pressed in can al­so be in­di­vid­u­al­ly se­lect­ed for the hot­slot. The pow­er dis­tri­b­u­tion is thus ab­solute­ly pre­cise and re­pro­ducible to en­sure tar­get­ed and ho­mo­ge­neous tem­per­a­ture con­trol in the man­u­fac­tur­ing process.

The com­bi­na­tion of brass car­ri­er and he­li­cal tubu­lar car­tridge al­lows low-pow­er zones to be pro­vid­ed that would be in­con­ceiv­able with a sim­ple he­li­cal tubu­lar car­tridge. Even me­an­der wind­ings, re­cess­es, open­ings and drillings as well as de­signs as a flat plate heat­ing el­e­ment are pos­si­ble. To fa­cil­i­tate sub­se­quent dis­as­sem­bly, the car­ri­er tube can be nickel-plated.

 

Ther­mo­cou­ples are in­te­grat­ed with an ad­di­tion­al slot and can al­so be placed in­di­vid­u­al­ly. On re­quest, hotset pro­duces the hot­slot with a slot­ted or par­tial­ly slot­ted car­ri­er tube with me­an­der wind­ing. This of­fers the ad­van­tage that the ther­mo­cou­ple can be changed eas­i­ly if re­quired. In ad­di­tion to the cus­tomized op­tions, hotset al­so of­fers sev­er­al vari­ants of the hot­slot with ther­mo­cou­ple as stan­dard items from stock.

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hot­slot noz­zle heat­ing el­e­ments with pow­er distribution



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