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The
Workhorse Robotic TIGweld 300ST-R
300
Amp GTAW/SMAW Inverter Power Source
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This
product is primarily designed for TIG welding (GTAW) with an
industrial robot using a time-proven SCR-inverter type power
supply. The Workhorse power sources weigh 80 pounds, feature
built-in circuit breaker, and provide 5-zones of thermal protection
to make this machine ideal for integration with an industrial
robot using 240, 480, or 575 Volts AC for primary power.
- TIG
and Stick welding current from 10 - 400 Amperes in 2
ranges.
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- Available
in dual primary voltage, 240V (single or three phase)
and 480V. Also available in single voltage 240V, 480V,
575V and 400V.
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- Easy
to strike the arc. The spark jumps a 1/2" in argon
gas and stops when the TIG arc is established. The Workhorse
300ST even has an inside adjustable pre flow and post
flow.
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- Carbon
arc gouging protection. (Circuit design that eliminates
the harmful currents caused during arc gouging has been
added)
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- Constant-arc-power
characteristic means less dependence on a steady hand
to achieve a good weld and reduces risk for electrode
“sticking”. The constant arc power characteristic
is, if possible, even more advantageous when TIG welding
than when stick welding. The TIG arc remains the same
cylindrical shape without flaring out when increasing
the arc length. The constant power arc characteristic
makes burn-through almost impossible when increasing
the arc length. This means that you can forget about
holding a constant arc length, which makes TIG welding
much easier.
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- Corrosion
Resistance: All welders shipped after June 15, 2005
include Seahorse
protection to withstand corrosion in natural environments
such as those found in shipyards, power plants, offshore
oil rigs and in mines. Our process is based on experiences
of 1,000+ welders used on the oil rigs in the North
Sea. Arcon guarantees all models against corrosion-related
failures for five-years.
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- Smart
surge control reduces weld puddle agitation caused by
big drops from low hydrogen electrodes, eliminating
a major cause of slag inclusions in the weld.
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- Inverter
circuitry allows for low weight (80lbs/36Kg) and rugged
design.
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- Outputs
and Inputs have 1500 Volt RMS isolation and provide
1% maximum non-linearity
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- Superior
Capacitive Discharge TIG arc starter ignition without
annoying high- frequency radio interference
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- Isolated
Output Current that is independently measured by
a Hall Sensor
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- Internal
Gas Valve for automatic gas control
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- Current/Time
controlled cooling fan protects Duty Cycle, reduces
the chance of
electrical arc-overs, and reduces dust accumulation
inside the welder
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- Bright,
easy to read panel mounted digital display
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- 240V
single or three phase, 400V, 480V or 575V dedicated
primary Voltage .
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- Fiberglass
enclosure allows for rough handling in demanding,
tough environments.
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- The
case has extra thick “skids” on the bottom
case as part of the design allowing for the welder
to be easily dragged on almost any surface.
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- Foldable
handles with built-in grooves, as well as ridges
in the case, makes nesting of units easy and practical.
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MECHANICAL DESIGN
The Workhorse 300ST provides exceptional ruggedness and durability
in tough and demanding environments such as construction, shipbuilding,
nuclear power plants, and offshore welding. The case is made
out of solid fiberglass, which provides sturdier resistance
to dents and forces than a sheet metal case.
ELECTRICAL DESIGN
The Workhorse 300ST uses an SCR inverter design for its power
supply. The inverter design allows for an industrial welding
machine weighing only 79lbs/36kgs. We have chosen the proven
SCR component instead of the IGBT because of reliability. We
have strong indications from the market that SCRs are up to
100 times more reliable in welding applications.
TIG Welding
The Arc Start feature allows no contact between material and
torch. The Arc Start feature is therefore the best solution
for critical TIG welding.
Smart Hot Start
Brings the puddle temperature up quickly for good initial penetration.
The amount of Hot Start is dependent on the weld puddle temperature.
The Workhorse 300ST measures the time in between welds. The
longer the period between stopping and starting, the greater
the Hot Start current. If the arc is broken for less than a
second, the Hot Start is eliminated. This prevents the puddle
from overheating and burning through.
Thermostat-controlled Cooling Fan
The cooling fan starts automatically when welding current exceeds
100 A. If the current drops below 100 A, the fan will stop after
approximately 6 minutes. If the fan is operating when the work
is discontinued, the fan will continue to run and stop after
approximately six minutes.
Option – The Warhorse
The Warhorse 300ST is a 400V or 480V welder designed to protect
the machine from voltage spikes and over voltage surges commonly
found in environments with very “dirty” power distribution
system, such as power plants and shipyards and some generators.This
high resistance to surges and spikes has been achieved by vastly
increasing the capacity of existing surge protection circuits,
adding new surge protectors and by using high voltage rated
components in critical parts of the inverter circuits.
Safety, Warranty and Service
The welding units are designed to meet UL551 and CE requirements.
The units come with a factory warranty and user manual.
Service will be taken care of by the factory or can in many
cases be performed locally by your service authorized Distributor.
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