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B-3
OPERATION
B-3
WIRE FEEDER FEATURES:
Drop-in Wire Loading - The innovative spindle snaps
into the Readi-Reel adapter (optional) or most any 2"
(51mm) I.D. wire spool. The wire spindle drops into the
top-loading WIRE-MATIC 250 case design.
Accommodating standard 12" (305mm) and 8"
(203mm) diameter coils, the unique spindle and sup-
port design automatically provides appropriate de-reel-
ing drag to prevent wire reel overrun and loop-offs
without manual brake adjustment.
Tachometer Controlled Wire Drive - Precision con-
trol of permanent magnet motor provides proper wire
feed acceleration and speed accuracy, independent of
fluctuations in line voltage and wire loading. This gives
reliable arc starting and weld consistency.
Low Speed Start - When the trigger is pulled, the wire
feeder feeds wire at low speed regardless of the set
wire feed speed until welding current is drawn or 2 sec-
onds has expired. This feature enhances starting and
makes setting stickout easy. The 2 second limit per-
mits high speed loading of the gun and cable. In later
versions of the WIRE-MATIC 250, a user selectable
feature allows the wire feeder to feed wire directly at
the set speed, thus bypassing the 2 second slow start.
Solid State Overload Protection - No circuit breaker
to reset. Simply pull the trigger to resume welding
once the overload condition has been cleared.
Unique Drive Roll and Guide Tube Design -
Precisely aligned guide tubes and drive rolls provide
long life. The design also permits quick reload by sim-
ply starting wire into ingoing guide tube. Adjustable
tension setting minimizes 'birdnesting', eliminates
milling through the wire, and gives positive feeding.
The double groove, reversible drive roll included with
the WIRE-MATIC 250 allows use of .030" (0.8mm)
through .045" (1.2mm) diameter wire. Drive roll kits for
other sizes and types of wire are also available.
Quick-Connect Welding Gun - Gun connector has
integrated welding power and gas connection with sep-
arate front-panel twist-lock trigger connection mount.
Gun and Cable - A 12 ft. (3.6m) GMAW gun and cable
assembly, rated 200 amps 60% duty, or 250 amps 35%
duty, is provided with the WIRE-MATIC 250. A liner,
diffuser and contact tips for .035" (0.9mm) and .045"
(1.2mm) electrodes are included.
MACHINE CAPABILITY
The WIRE-MATIC 250 is rated on the following duty
cycles based on a 10-minute time period (i.e., for 60%
duty cycle, it is 6 minutes on and 4 minutes off).
LIMITATIONS
The WIRE-MATIC 250 may not operate satisfactorily if
powered with a portable or in-plant generating system.
WIRE-MATIC 250
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Duty Cycle
100%
60%
35%
Amps.
145
200
250
Volts
26
28
26