Introduction
2‐15
P/N 397189E
E 2006 Nordson Corporation
BM200_EASY_GEAR
Melting Process and Material Flow
The material is melted only directly below the melting plate (4). A pump (1)
(gear pump) feeds the melted material to the hose connection (3). From
there it flows through a heated hose to an application head or an assembly
handgun, possibly to a melter, to fill that unit.
A safety valve (2) limits the material pressure generated by the pump and
keeps it constant.
3
4
1
2
Fig. 2‐9 Principle drawing
Drive
An electronically controlled electrical motor drives a gear pump. It standardly
runs in manual mode. Automatic mode is also possible.
S Manual mode: In manual mode the motor/pump speed is held steady at
the manually set value.
S Automatic mode: In automatic mode (key‐to‐line mode) the motor/pump
speed is regulated synchronously to the speed of the parent machine.
For this to occur, the system must receive pilot voltage from the parent
machine.
NOTE: With the option Pressure control, the speed is regulated such that
the material pressure behind the pump is kept steady.
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