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Fixture Type
Transformers |
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 |
Applications: |
The perfect
choice for multi-spot welding fixtures. |
| Features: |
Single
secondary or two isolated. impedance-balanced secondaries are provided,
with various tap switch mounting positions and primary disconnect plugs
available. |
| Ratings: |
5 to 220 KVA |
|
Machine Type
Transformers |
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 |
Applications: |
Predominantly
used in press, seam, or rocker arm welding machines. |
| Features: |
Secondary
connection pads conform to RWMA standards. Voltage range covers up to
60% of the high tap voltage. Secondary end is potted with epoxy resin to
provide added support to the connections and seal out contaminants. |
| Ratings: |
20 to 600 KVA.
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Inverter Power Supply/MFDC/HFDC |
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Perfect for
robotic applications, RoMan offers a full range of high frequency DC
power sources that deliver high secondary current in a compact,
lightweight package.
RoMan can provide both industry standard
and custom design high frequency DC power sources that evenly distribute
primary current demand across 3-phase systems. Operating ranges up to
850 primary volts, and frequency ranges up to 1,200 hertz. |
|
DC Power
Supplies/Special Power Sources |
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|
 |
 As the world's leading
manufacturer of DC power sources for resistance welding and heating,
RoMan has the engineering expertise to determine the power source most
useful in your situation and take it from design to delivery according
to your demanding production schedules.
We also manufacture special transformers
and DC power supplies for plating and heat treating applications.
Available in single-phase or three-phase
configuration, RoMan DC power sources range in size from 10 to 4,000 KVA.
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RoMan
manufactures tap switches to regulate output voltages for welding
transformers and other devices requiring switching on the primary.
Available in single-, two-, or
three-phase configurations from 100 to 1,000 amps, each tap switch can
be custom configured to meet customer specifications. |
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 |
Grounding
Reactors provide protection from electrical shock when direct grounding
of the secondary circuit is not practical. They are especially effective
on portable guns, and push-pull or series circuits in multi-spot
welders.
Available in several sizes and voltage
ranges, RoMan grounding reactors can be used with any resistance welding
transformer, regardless of make, model, or age.
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RoMan's
portable impedance meter features a variable low-voltage power source
that measures tip-to-tip impedance of:
 | Single phase AC resistance welding
machines |
| Portable Guns |
| Transguns (with or without
transformers) |
| Kickless cables |
|
|
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| |
The Weld
Current Equalizer helps ensure weld quality by balancing secondary weld
currents in multi-spot welding machines.
|
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Transgun/Robot Type
Transformers |
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 |
Applications: |
Resistance
welding transguns for robots or multi-spot fixtures. |
| Features: |
Compact,
lightweight design is suitable for close coupled welding gun mounting.
Available with single secondary voltage, or variable secondary voltage
range with tap switch. |
| Ratings: |
20 to 100 KVA. |
|
Portable Gun Type
Transformers |
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 |
Applications: |
Any welding
installations using portable welding guns, or remote robot guns. |
| Features: |
Secondary
connections designed to accept low reactance dual conductor (kickless)
welding cables. Available in wound and stacked core models. Integral
hanger accommodates overhead mounting. |
| Ratings: |
50 to 400 KVA |
A
World Of Resistance Welding
