The AK-812 utilizes air to perform the task of pushing the stick into the heated chamber; this eliminates the repeated pulling of a standard trigger, which reduces operator fatigue even further. Stroke adjustment and speed control helps make the adhesive output controllable and repeatable, which should help to cut down on excessive adhesive use.
Like conventional hotmelt stick guns, the PT-412 gun requires pulling of the trigger to push in the stick, however that is where the similarities end. The increased wattage (400 V's 100-300 watts) provides an increased melt capacity, making this one of easiest and fastest stick guns available on the market today.
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