Equipment Familiarization
2-7
Manual extrusion gun
The AD-31 handgun, designed for applications requiring manual
placement of adhesive bead deposits, has been equipped with an RTD
for use with Series 2300 applicators. Like all Nordson handguns, the
AD-31 is operated by a manual trigger which is isolated from the gun to
keep it cool. The trigger is connected by a linkage to a packing
cartridge in the gun body. At the end of the packing cartridge is a
carbide ball tip that seals against a matching seat. Heat is supplied by a
cartridge heater, which is controlled by the RTD.
When the trigger is squeezed, the carbide ball is lifted from its seat by
the linkage mechanism, forcing the pressurized hot melt material
through the opening in the seat and out the nozzle. When the trigger is
released, a spring forces the ball back against its seat, stopping
material flow.
The AD-31 handgun is available in 200 VAC and 230 VAC versions.
0 No&on Corporation 1994
All Rights Reserved
P/N 106 701A
41-23OoSP - Issued II94
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