Model 7100 Portable Pin Welder
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DESCRIPTION
The Model 7100 Portable Pin Welder is a solid state resistance welder designed for welding
Power-Point Resistance Weld Pins to galvanized sheet metal ductwork. Exceptionally strong
welds will be obtained with 24 gage or lighter sheet metal. Acceptable results have been ob-
tained on heavier metal. However, tests should be performed to determine the correct weld
time settings and if the weld is acceptable per individual requirements.
The normal, continuous weld rate is 8-12 welds per minute. It is capable of welding at faster
rates, but for short durations only. Care should be exercised not to exceed the continuous rate
for long periods, otherwise component overheating and damage may occur.
The weld gun has a pistol grip style handle with a trigger switch and extra long cables. Weld-
ing current is not available at the gun until the weld pin contacts the sheet metal. The weld
relay and weld timer operations may be tested by activating the trigger without the pin touch-
ing the sheet metal. The “WELD ON” light will turn ON, as well as the weld transformer, for
up to 1.5 seconds, or equal to the weld time control setting.
SPECIFICATIONS
Input voltage — 190-240 volts AC, 60 Hz, 1 Phase, 30 Amps
Electrical connection —7 ft, 12/3 power cord terminating with a 4 prong, 30 amp twist-lock
plug. Connections used are “ground”, “X” and “Y”.
Ground cable — 2.5 feet, # 4/0 weld cable, with a spring loaded, copper alloy clamp
Weld gun cable — 10.5 feet, # 3/0 weld cable and # 18/3 control cable
Dimensions — 16” L x 9-5/8” W x 7-1/4” H
Weight (including gun and cables) - 65 lbs.
Weld rate — 8-12 welds per minute (depending on weld time settings).
Gun type — pistol grip
Gun weight (less cables) — 1.6 lbs.
Gun dimensions— 5-1/4” L x 2” diameter
Shipping weight—80 lbs., crated
