Big Blue 350 PipePro Quick Specs

Big Blue 350 PipePro Quick Specs
Issued Dec. 2015 • Index No. ED/5.4
Big Blue 350 PipePro
Heavy Industrial
Output Range
Stick (SMAW)
Flux-cored (FCAW)
Pulsed MIG (GMAW-P)*
Air carbon arc (CAC-A)
Rated: 1/4-inch (6.4 mm) carbons
Pipe welding
Mechanical contractor
Diesel Engine-Driven
Welder/AC Generator
DC stick 20–400 A
FCAW/MIG 14–40 V
DC TIG 20–400 A
Generator Output Rated at 104°F (40°C)
12,000 watts peak, 10,000 watts continuous
*Available only on Big Blue 350 PipePro SF models
Big Blue 350 PipePro
Designed exclusively for
transmission pipeline work,
the Big Blue 350 PipePro offers
stick as well as MIG/flux-cored
welding capabilities to meet
high-strength steel requirements
and is ideal for the most
demanding pipeline jobs.
NEW! Big Blue® 350 PipePro SF
Improve productivity and
quality with advanced RMD®
and pulsed MIG processes with
the FieldPro Smart Feeder.
Big Blue 350 PipePro
(USA model)
The vault — ultimate control board reliability.
See page 5.
Superior arc performance
• Adjustable arc control
• Adaptive Hot Start ™ (stick)
• FCAW/MIG arc performance
• Lift-Arc™ TIG with Auto-Stop™
Auto Remote Sense™ (ARS) detects if a remote
control is plugged into the 14-pin receptacle and
eliminates confusion of a remote/panel switch.
Low OCV stick (VRD) reduces the open-circuit
voltage to 15 volts when the welding power
source is not in use, increasing operator safety
without compromising arc starts.
Big Blue 350 PipePro SF
(USA model)
Caterpillar C1.5T three-cylinder diesel
Mitsubishi S4L2 four-cylinder diesel
Heavy-duty low-speed industrial engines are
designed to operate over 10,000 hours before
the first basic overhaul. Backed by worldwide
support and service.
Welder/generator is warranted by Miller for three years, parts and labor.
Engine is warranted separately by engine manufacturer.
Miller Electric Mfg. Co.
Equipment Sales US and Canada
An ITW Welding Company
1635 West Spencer Street
P.O. Box 1079
Appleton, WI 54912-1079 USA
Phone: 866-931-9730
FAX: 800-637-2315
International Phone: 920-735-4554
International FAX: 920-735-4125
Models Overview
Base model
LINE-X® cover is workbench tough
and provides superior impact,
corrosion and abrasion protection.
Simple-to-set controls require no
elaborate procedure — just select
process and weld!
Infinite arc control allows the arc
characteristics to be changed for
specific applications in stick and MIG.
HD powder coat with zinc-rich
primer protects sheet metal from
rust and corrosion.
Engine coolant temperature gauge
and meter maintenance displays
• Fuel gauge
• Hour meter function
• Oil change interval
• High coolant temperature and
low oil pressure shutdowns
• Low fuel shutdown — engine shuts
down before system runs out of fuel,
making restarts easy
Standard features include digital
preset weld meters, output contactor
control, automatic idle and 120-volt
block heater.
NEW! SF model additional features
Advanced RMD® and pulsed MIG processes are now available in
an engine driven welder/generator. Discover increased productivity,
quality, and improved efficiency in field welding with the
new Big Blue 350 PipePro SF with FieldPro™ Smart Feeder.
FieldPro Smart Feeder
FieldPro Smart Feeder delivers excellent RMD®
and pulsed MIG welding up to 200 feet away
from the power source with no control cables —
twice the distance previously possible. RMD and
pulsed MIG processes help reduce weld failures
and eliminate backing gas on some stainless and
chrome-moly pipe-welding applications.
Durable design reduces
downtime. Impact-resistant
case and the elimination of
feeder control cables provide
a solid solution to last in
harsh environments.
Full remote control at the
weld joint. Simply connect
standard weld cables in-line
with the FieldPro Smart Feeder
and you’re ready to go!
Simple-to-set controls have integrated
support for Smart Feeder, simply turn
the knob to either MIG VS or FCAW VS
for optimal performance.
Stainless steel appearance package
provides additional exterior protection
to withstand corrosive environments.
Big Blue 350 PipePro SF (#907 478 002 with CAT Turbo) or
(#907 428 002 with Mitsubishi) shown with FieldPro Smart Feeder
(#300 935) and Bernard™ PipeWorx 300 MIG gun (#195 400).
Items sold separately.
Specifications (Subject to change without notice.)
Weld Output Rated
at 100% Duty Cycle
at 104°F (40°C)
Max. OpenCircuit
Generator Power Output
Rated at 104°F (40°C)
20–400 A
85 VDC
15 VDC*
12,000 watts peak,
10,000 watts continuous
20–400 A
300 A at 32 VDC
350 A at 27 VDC
400 A at 24 VDC
14–40 V
Weld Mode/
1-phase, 84/42 A,
120/240 VAC, 60 Hz
Sound Levels
at Rated Output,
23 ft. (7 m)
(without fuel)**
Idle: 65 dB (90 Lwa)
Weld: 71.2 dB (96 Lwa)
Idle: 68.7 dB (93 Lwa)
Weld: 72.1 dB (97 Lwa)
H: 32 in.
(813 mm)
W: 26.25 in.
(667 mm)
D: 56 in.
(1,422 mm)
Net: 1,063 lb. (482 kg)
Ship: 1,113 lb. (505 kg)
Net: 1,018 lb. (462 kg)
Ship: 1,068 lb. (484 kg)
*Sense voltage for stick and Lift-Arc™ TIG. **Additional 82 lb. (37 kg) when fuel tank is full.
Certified by Canadian Standards Association to both the Canadian and U.S. Standards. Meets NEMA and IEC output ratings.
CAT powered International model is
Engine Specifications (Engines warranted separately by the engine manufacturer.)
Engine Brand
Engine Speeds
Automatic Engine Shutdown
Caterpillar C1.5T
EPA Tier 4 Final compliant
industrial diesel
Weld: 1,800 rpm
Idle: 1,500 rpm
Fuel: 11.5 gal. (43.5 L)
Oil: 5.9 qt. (5.6 L)
Coolant: 7.2 qt. (6.8 L)
Low oil pressure,
high coolant temperature,
low fuel level
Mitsubishi S4L2
EPA Tier 4 Final compliant
industrial diesel
Weld: 1,800 rpm
Idle: 1,500 rpm
Fuel: 11.5 gal. (43.5 L)
Oil: 5.8 qt. (5.5 L)
Coolant: 10 qt. (9.5 L)
Performance Data
Simultaneous Welding And Power
Total Aux. Power
Available (Watts)
120 V
240 V
25 A
75 A
125 A
175 A
225 A
300 A
350 A
Us Gal./Hr.
Fuel Consumption Curve
DC Weld Amperes at 100% Duty Cycle
Function Guide
1. Self-calibrating digital weld meters with
fault code indication display preset or
actual weld parameters.
2. Weatherproof Lexan® nameplate is super
durable and resists cracking and fading.
Color coded for ease of operation.
3. Hot Start ™ provides positive stick electrode
starts making it easy to start all types
of electrodes and it also works great for
bead tie-ins.
4. Smart Feeder setting (SF model only).
Recommended for optimal Smart Feeder
120/240 V, 50 A
120 V, 20 A GFCI receptacles
5. Great FCAW/MIG performance and
arc starts make the Big Blue® 350 PipePro
arc the best in its class. Easy to run all wires
from .023-inch solid wires to large-diameter
5/64-inch flux-cored wires.
6. Lift-Arc ™ TIG with Auto-Stop™
USA model
7. Adjustable arc control adjusts DIG when
process control is in stick mode and adjusts
inductance when process control is in
FCAW or MIG mode. The amount of DIG
determines how much amperage (heat)
varies with stick arc length. Inductance
determines the “wetness” of the weld puddle.
8. Standard 14-pin receptacle for simple
connection of remote controls and wire
feeders. It features Auto Remote Sense™
which automatically switches from panel to
remote amperage/voltage (A/V) control with
remote connected. Eliminates confusion of
a panel/remote switch.
9. Engine coolant temperature gauge
displays coolant temperature. Engine stops
if temperature exceeds 230°F (110°C).
10. Meter maintenance display shows fuel
level, engine hours, oil change interval and
high temp/low pressure/low fuel shutdown
Low fuel shutdown shuts engine off prior to
running out of fuel to prevent loss of fuel in
the system, and make restarts easy. Display
will read noFUEL. Turn the machine off, add
fuel, and restart.
11. Glow plugs assist in cold weather starting.
240 V, 16 A
AC receptacle
120 V, 16 A
AC receptacle
ARC START with Lift-Arc
Touch or scratch
Lift at any angle
• Reduces or eliminates sticking
• Reduces or eliminates electrode/
work contamination
• Low open-circuit voltage
ARC END with Auto-Stop
For Auto-Stop, lift up to terminate arc
While welding
14. Weld output terminals
120 V, 20 A
AC receptacle with
ground fault
International model receptacles
12. Engine control switch is used to start the
engine and then select between auto idle
and high speed lock.
13. Amperage/voltage adjust control
Earth leakage
circuit breaker
Lift up
until arc
Arc ends
Move back
down to
maintain gas
• Eliminates need for
a remote control
• Maintains shielding
gas coverage
• Eliminates tungsten
and workpiece
• Eliminates
unwanted arc
strikes outside the
weld area
What Makes Miller Industrial Engine Drives So
Superior circuit board design
Our critical circuit boards are engineered to carry low power and low
heat to reduce thermal stress and minimize expansion and contraction.
In contrast, our competitor’s boards carry high power and high heat,
making them more vulnerable to failure.
Rigorous testing for
tough, real-world
To prove our machines go to the
limit, Miller industrial engine drives
are put to the test in very extreme
environmental conditions.
• Airborne dust and sand. Critical
components are exposed to
abusive airborne particles in a
special testing chamber for weeks,
helping make sure they’ll operate
while facing extreme levels of dirt,
dust or sand on the jobsite.
“The vault” makes upgrading to Miller CC/CV
units worry-free
Concerns with circuit board reliability have resulted in some operators
steering clear of CC/CV welder/generators — even though they offer
a superior arc and multiple welding processes. Miller circuit board
reliability isn’t a concern since all Big Blue multiprocess industrial
engine drives feature the vault.
Created out of two aluminum halves sealed with silicone, as well as
watertight harness connections, the vault provides a clean circuit
board environment, protecting the electronics — and controlling
output — in heavy industrial applications. No other competitor
protects their electronics with a sealed vault, leaving critical circuit
boards exposed to harsh elements that can disrupt the machine’s
electronics, and therefore, its operation.
• Humidity and corrosion. Inside
our Houston testing room, critical
components are subjected to
extended moisture and corrosive
salt exposure to ensure they’ll run
even when exposed to humid
climates, corrosive coastal
environments, and driving rain.
• Temperature extremes. Miller industrial engine drives are tested
to ensure performance in scorching heat. All Miller engine-driven
machines are weld rated at 104 degrees Fahrenheit, but actual tests are
conducted up to 122 degrees Fahrenheit to assure peak performance.
• Jobsite/over-the-road abuse. Miller industrial engine drives are
shaken for hours on transportation bed simulators, subjected to severe
vibration, and test-dropped and jerked to ensure they’ll withstand the
stresses that can shut down competitive machines.
• Continuous operation. Miller industrial engine drives run day and
night, in all weather conditions, to assure they’ll perform without
interruption in the field.
Why industrial engine
drive customers
choose Miller
The ultimate test of Miller reliability
is how it performs in the field. The
quote on the left provides a glimpse
of how Miller industrial engine
drives perform for customers.
Read the full story, and many
others demonstrating our superior
reliability, at
“The Miller 350 PipePro makes my job easier every day. It runs a
3/16 electrode downhill smoother and keeps it lit better than any
machine I’ve used.”
Jerry Morley, Gas Field Specialists Inc,
Plumbers and Steamfitters #267
Genuine Miller Accessories
MIG (GMAW) or Flux-Cored (FCAW)
Full KVA Adapter Cord #300 517 Field
NEMA 14-50P to NEMA 6-50R. Adapts engine
drive 120/240 V plug to common Millermatic®
and Spectrum® 240 V plug.
Full KVA Plug Kit
#119 172 Field
120/240 V, 50 A plug
(NEMA 14-50P) to fit full
KVA receptacle.
International Plugs
#255 419 Field
1-phase,120 V, 16 A plug
#255 416 Field
1-phase, 240 V, 16 A plug
Engine Filter Kits
#246 987 Field. For CAT
#252 782 Field. For Mitsubishi
Includes all filters required for proper engine
maintenance. Oil filter, primary and secondary
fuel filter, and primary air filter.
Spark Arrestor (Muffler) Kit #300 585 Field
Prevents particles from leaving the muffler that
could potentially start a fire. Mandatory when
operating on California grasslands, brush, or
forest-covered land, and all national forests.
For other areas, check your state and local laws.
Meets U.S. Forest Service Standard 5100-1B.
FA-1D Lockable Flame
Arrestor Fuel Cap
#043 947 Field
Fuel cap can be padlocked to
prevent vandalism. A built-in
flame arrestor prevents flames
or sparks from entering the
fuel tank.
PipeWorx Memory Cards
For use with FieldPro Smart Feeder only.
SuitCase® X-TREME™ 8VS Wire Feeder
#951 583 With Bernard™ BTB Gun 300 A
SuitCase® X-TREME™ 12VS Wire Feeder
#951 544 With Bernard™ Dura-Flux™ gun
Lightweight, voltage-sensing wire feeders
include secondary contactor, gas valve, drive roll
kit and gun. See Lit. Index No. M/6.42.
SuitCase® 12RC Wire
Feeder #951 580
Lightweight and
flexible enough to run
a variety of wires up
to .062-inch diameter.
Includes remote
voltage control, drive
roll kit and Bernard™
BTB Gun 300 A. See
Lit. Index No. M/6.5.
#301 230 System Software
For free download, visit
#300 557 Calibration
Used to calibrate the PipeWorx System. For free
download, visit
#300 744 Inconel
Pulsed MIG, .045-inch diameter wire, 100% argon
#300 460 Range Locks
Provides ability to set nominal parameter values
and ranges for wire feed processes.
#300 667 Accu-Power™
Displays instantaneous power during welding to
meet the new ASME requirement for calculating
heat input on complex waveform processes
(RMD® and pulsed MIG).
#301 035 Trigger Select/Hold Option
Enables trigger select while welding to change
processes and parameters without stopping.
TIG (GTAW) Welding
FieldPro™ Smart
Feeder #300 935
For use with Big Blue
350 PipePro SF model
only. See page 2 for
more information.
Dynasty® 210 Series #907 685, #907 686
For premium portable AC/DC TIG arc quality.
See Lit. Index No. AD/4.81.
HF-251D-1 #042 388
115 V. High-frequency arc
starter and stabilizer. See
Accessory Lit. Index No.
Protective Cover #195 301 Field
Blue water-resistant cover with Miller logo
resists stains and mildew, and protects the
finish of your welder.
Genuine Miller Accessories (Continued)
Plasma Cutting
Remote Controls
Wireless Remote Hand
Control #300 430
For remote current, voltage
and contactor control.
Receiver plugs directly into
the 14-pin receptacle of Miller
machine. 300-foot (91.4 m) operating range.
Requires Wireless Antenna Kit #300 749.
Spectrum 375 X-TREME and 625 X-TREME shown.
Wireless Antenna Kit #300 749
Required for Pro Series engine drives. Optional
on other compatible Miller products where
improved reception is desired.
Spectrum 375 X-TREME #907 529
See Lit. Index No. PC/9.2.
Spectrum® 625 X-TREME™ #907 579
See Lit. Index No. PC/9.6.
Spectrum® 875 #907 583
See Lit. Index No. PC/9.8.
PRHC-14 Hand Control
#195 511
Complete current or
voltage control brings
120 V GFCI power to work
area in a single cord.
Housed in durable
aluminum case and
includes 125-foot (38 m) cord with plugs.
Extension Cables for 14-Pin Remote Controls
or 24 VAC Wire Feeders
#242 208 025 25 ft. (7.6 m)
#242 208 050 50 ft. (15.2 m)
#242 208 080 80 ft. (24.4 m)
The Spectrum 375 X-TREME and 625 X-TREME
come complete with protective X-CASE™
(not shown).
Trailers and Hitches (Note: Trailers are shipped unassembled.)
Mounting Specifications
Cable Tree #043 826
Provides an area to conveniently wrap weld
cables and extension cords.
HWY-224 Trailer #043 805
A 2,650-pound (1,202 kg) capacity trailer for
highway use. Welded steel tubing frame,
heavy-duty axle with roller bearing hubs and
leaf-spring suspension. Includes jack stand,
2-inch (50 mm) ball hitch, fenders and lights.
4 holes
Front Panel
Dual Hitch #300 831
2-inch (50 mm) ball hitch and 3-inch (76 mm)
lunette eye in one reversible assembly.
A. 27.75 in. (705 mm)
B. 26.25 in. (667 mm)
C. 52 in. (1,321 mm)
D. 2 in. (51 mm)
E. 56 in. (1,422 mm)
F. .562 in. (14 mm) diameter
Height: 32 in. (813 mm)
Width: 26.25 in. (667 mm)
Depth: 56 in. (1,422 mm)
Trailer Specifications (Subject to change without notice.)
Gross Axle
Weight Rating
Gross Vehicle
Weight Rating
of Bed
Track (Center
to center of
Standard Tires
(Standard rating
or P-size rating)
3,500 lb.
(1,588 kg)
2,960 lb.
(1,343 kg)
2,650 lb.
(1,202 kg)
18.5 in.
(470 mm)
7.25 in.
(184 mm)
52 in.
(1,321 mm)
Length: 105 in. (2,667 mm)
Width: 59.5 in. (1,511 mm)*
320 lb.
(145 kg)
*Width at outside of fenders.
Ordering Information
Equipment and Options
Stock No.
Big Blue 350 PipePro
#907 478
#907 428
Base USA model with CAT Turbo
Base USA model with Mitsubishi
Big Blue® 350 PipePro® SF
#907 478 002
#907 428 002
Smart Feeder compatible model with CAT Turbo and stainless steel package
Smart Feeder compatible model with Mitsubishi and stainless steel package
Big Blue® 350X PipePro®
#907 530
International model with CAT Turbo (CE)
USA Model Full KVA Adapter Cord
#300 517
See page 6
USA Model Full KVA Plug Kit
#119 172
1-phase, 120/240 V, 50 A
International Plugs
#255 419
#255 416
1-phase, 120 V, 16 A
1-phase, 240 V, 16 A
Engine Filter Kits
#246 987
#252 782
For CAT. Includes air, oil and fuel filters
For Mitsubishi. Includes air, oil and fuel filters
Spark Arrestor (Muffler) Kit
#300 585
See page 6
FA-1D Lockable Flame Arrestor Fuel Cap
#043 947
See page 6
Protective Cover
#195 301
See page 6
SuitCase® X-TREME™ 8VS
#951 583
With Bernard BTB Gun 300 A. See Lit. Index No. M/6.42
SuitCase® X-TREME™ 12VS
#951 544
With Bernard Dura-Flux gun. See Lit. Index No. M/6.42
SuitCase® 12RC
#951 188
With Bernard BTB Gun 300 A. See Lit. Index No. M/6.5
FieldPro™ Smart Feeder
#300 935
See Lit. Index No. PWS/6.0
Bernard™ PipeWorx 300 MIG Gun
#195 400
See Lit. Index No. PWS/6.0
Dynasty® 210
#907 685
Basic controls for AC/DC TIG/stick, 120 – 480 V. See Lit. Index No. AD/4.81
Dynasty® 210 DX
#907 686
Full feature controls for AC/DC TIG/stick, 120–480 V. See Lit. Index No. AD/4.81
#042 388
115 V. See Lit. Index No. AY/5.0
#907 529
Includes X-CASE™. See Lit. Index No. PC/9.2
Field Accessories
MIG/Flux-Cored Welding
TIG Welding
Plasma Cutting
Spectrum® 375 X-TREME™
Spectrum® 625 X-TREME™
#907 579
Includes X-CASE™. See Lit. Index No. PC/9.6
Spectrum® 875
#907 583
See Lit. Index No. PC/9.8
Remote Controls
See page 7
Trailers and Hitches
HWY-224 Trailer
#043 805
Trailer with lights, fenders and 2-inch (50 mm) ball hitch. For highway use
Cable Tree
#043 826
Trailer-mounted cable holder for HWY-224
Dual Hitch
#300 831
Combination 2-inch (50 mm) ball hitch and 3-inch (76 mm) lunette eye in one
reversible assembly for HWY-224
Distributed by:
© 2015 Miller Electric Mfg. Co.
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