Instruction Manual
Page 5
CHAPTER 3
ELECTRICAL AND AIR REQUIREMENTS
3.0
Electrical and Air Requirements
Warning! Only a qualified electrician may connect the electrical power.
Preparation - World Power
1. Make sure the Power Supply is at 230v, 25amp.
2. Make sure the voltage and current is dedicated to the machine and to the above
specification.
3.
Before operation of the machine be sure the surrounding area of the machine is
free of flammable debris. Only authorized persons should be in the area of the
machine while in use.
Electrical Supply
The Miller Weldmaster Seamrover DD requires the following electrical requirements:
•25 Amp - Single phase - 230 Volts
•Recommend a 10k+ generator
4.0
Principals of Heat Sealing
Heat
Hot Air Heating System
The Heat required for the welding operation is created electrically by one heating element locat-
ed inside the Heat Element Housing. The Internal Air Compressor pumps air over the heating
element and carries the heat through the Hot Air Nozzle, applying the heat to the material to
be welded. The hot air temperature ranges from 100 to 1350 Degrees Fahrenheit (25 to 730
Degrees Celsius).
Speed
The Speed of the Weld Rollers determines the amount of time the heat is applied to the material
being welded. The slower the speed setting, the more the material will be heated. The faster the
speed setting, the less the material will be heated. To achieve the best weld, a minimal amount
of heat should be applied to the material while still achieving a full weld. Too much heat will
cause distortion of the material; while not enough heat will prevent the material from welding.
Pressure
The pressure of the weld roller is determined by the weight of the machine on the surface and
is the final step when creating a weld. The pressure of the weld roller compresses the heated
material together completing the welding process.
Summary
When heat sealing, the correct combination of heat, speed, and pressure will allow you to
achieve a properly welded seam.
ALWAYS PERFORM A TEST WELD!