The Maan Drum Melter 200 is a high-quality pre-melting system for (PUR) hot melt. Ideally suited for processing PUR hot melt, due to the melt-on-demand principle. The heated glue stamp melts and pumps only the top layer of the hot melt. The remaining glue in the barrel remains stable and cannot degrade in quality. The stamp is equipped as standard with one automatic vent and aeration valve, so that the chance of air in the glue during barrel changes is reduced to a minimum. The Maan Engineering Drum Melters are equipped with a glue pressure sensor. The pump switches itself off automatically at underpressure and overpressure. As a result, a traditional by-pass is not necessary and aging of the glue or blockage of the system is prevented.