The pressure cylinder presses the cartridge or granules against the heater elements. After reaching a certain position, the sensor sends a replenishment signal to the control. As long as glue is being applied to a workpiece, charging is delayed until the work is finished. The pressure cylinder retracts automatically, a new cartridge or fresh granulated material drops from the cartridge supply shaft into the heating shaft where it is again pressed against the heating elements.
Purging hole for automatic cleaning system – e.g. cleaning out PUR glue.