CHAPTER 2: GETTING STARTED
DUAL PULSE 125
STORED ENERGY RESISTANCE WELDING POWER SUPPLY
2-4 990-270
Installing Air Actuated Weld Heads
Solenoid valve/regulator assemblies which are not mounted on the weld head should be located as close
as possible to the weld head. Use the shortest air lines possible to obtain the fastest mechanical
response. All Thinline weld heads are capable of cycling at a rate of 1 weld per second, provided that
the tubing between pressure regulator(s) and the air cylinder is kept as short as possible. Increasing the
length of tubing produces very sluggish mechanical motion.
Connect the inlet port on the Air Valve (Solenoid) to a PROPERLY FILTERED AIR SUPPLY (100
psig maximum). Use 0.25" O.D. I.D. plastic hose with a rated burst pressure of 250 psi to connect the
outlet ports of the solenoid/regulator assembly to the flow controls on the air cylinders. See figure 2-4.
Turn the regulator(s) fully counter-clockwise to insure minimum air pressure. Turn on the air supply.
Repair leaks if necessary.
Figure 2-4. Solenoid Air Valve Assembly for Thinline Model 80A
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