Page 1
Low noise operation allows for better
work site communication and safety.
72 db @ 7 m (no load—idle),
78 db @ 7 m (full load—high speed).
Processes
MIG (GMAW)
Flux Cored (FCAW)
Stick (SMAW)
TIG (GTAW)
Air Carbon Arc (CAC-A)
Cutting and Gouging
thru 1/4 in Carbons
Air Plasma Cutting
and Gouging with Optional
Spectrum Models
Output Range CC/DC: 20–350 A
CV/DC: 10–34 V
CC/AC: 35–250 A
Weld Output Rated at 104˚ F (40˚ C)
CC/DC and CV/DC: 300 A at 32 VDC, 100% Duty Cycle
350 A at 28 VDC, 60% Duty Cycle
CC/AC: 200 A at 25 VAC, 60% Duty Cycle
Generator Power Rated at 104˚ F (40˚ C)
12,000 watts continuous
Weight Net: 998 lb (453 kg)
Quick
Specs
Trailblazer®Pro 350 D
Diesel Engine-Driven
Welder/Generator
Issued March 2006 • Index No. ED/4.65
The professional welder’s choice with higher outputs is
designed to deliver the best arc performance with enough
weld power to dominate larger diameter flux cored wires
and air carbon arc gouging thru 1/4 in carbons.
Weld at Idle
™
—lock in idle and weld in
DC up to 180 A.
12,000 watts of generator power is
regulated to provide constant, strong
power and very good motor starting
characteristics. Power is independent
of weld control settings so that the
correct voltage is available at all times.
Even better weld performance
with an arc that dominates the
competition. In Stick mode, you
get a smooth E7018 and a great
E6010 arc with Arc-Drive and
Hot Start
™
standard. Great
MIG/FCAW arc and machine idles
with feeders hooked up. More
stable AC TIG and excellent starts
in DC scratch start TIG.
The Power of Blue®.
Welder/generator is warranted for 3 years, parts and labor.
Engine is warranted separately by the engine manufacturer.
Miller Electric Mfg. Co.
An Illinois Tool Works Company
1635 West Spencer Street
Appleton, WI 54914 USA
Web Site
www.MillerWelds.com
International Headquarters
Phone: 920-735-4505
USA FAX: 920-735-4134
Canadian FAX: 920-735-4169
International FAX: 920-735-4125
Industrial Applications
Mechanical Contractors
Rig Owners
Structural Steel Work
Process Plant Piping
Fabrication
With a compact and lightweight
design at only 998 lb, a smaller
truck can be used, and related
transportation costs will be reduced.
Low height allows the driver to see
over the machine when mounted
on a truck bed and the machine fits
sideways in a standard pickup.
Weld meters now standard.
Automatic Start at Idle
™
idles engine
immediately when started, extending
engine life and reducing
fuel consumption and noise.
Toolless top and side engine access
allows easy and faster maintenance
with little clearance space needed.
Toolless remote oil drain is standard.
Standard 14-pin receptacle easily
connects feeders or remote controls
for enhanced process operation.
Automatic idle in all processes,
including MIG/FCAW with feeders
to save fuel and reduce noise.
26 HP, 3-cylinder Kubota diesel
engine with its durable, proven
liquid-cooled design is the world
standard for small diesel engines.
Engine shutdowns standard.
Cold weather starting aids such as
standard glow plugs and block heater
ensure good starts in cold weather.
Strong 120/240 V power while welding
to run tools and inverter welders. See
page 3 of literature.
Page 2
Welding
Mode
CC/DC
CV/DC
CC/AC
Weld Output Rated at
104˚ F (40˚ C)
300 A, 32 VDC, 100% Duty Cycle
350 A, 28 VDC, 60% Duty Cycle
200 A, 25 VAC, 60% Duty Cycle
Output
Range
20–350 A
10–34 V
35–250 A
Max. Open-Circuit
Voltage DC
80
50
70
CSA approved. *Net weight with 2 gal of fuel. Add 40 lb for shipping weight.
2
Control Panel
Weight*
Net: 998 lb
(453 kg)
Dimensions
H: 30 in (762 mm)
W: 24 in (610 mm)
D: 59-1/2 in (1511 mm)
Single-Phase Generator Power
Output Rated at 104˚ F (40˚ C)
12 kVA/KW, 120/240 VAC,
100/50 A, 60 Hz
Specifications (Subject to change without notice.)
1. Voltmeter
2. Ammeter
3. Process/Contactor Switch
4. Voltage/Amperage Adjustment Control
5. Voltage/Amperage Adjust Switch and
Remote 14 Receptacle
6. DC Polarity/AC Selector Switch
7. Fuel Gauge
8. Hour Meter
9. Engine Speed Switch
10. Glow Plug Switch
11. Engine Control Switch
12. 120/240 V Receptacles
Note: GFCIs are standard
Performance Data
FUEL CONSUMPTION DATA
• 13-gallon fuel capacity.
• Welding at 150 A at 40% duty cycle, uses only
.61 gallon per hour— over 20 hours of operation.
Engine Specifications (Subject to change without notice.)
Engine Brand
Kubota DH905
2-year limited
North American
Manufacturer
Warranty
Horsepower (HP)
26 at 3600 RPM
Weld Speed
3600 RPM
Idle Speed
2525 RPM
Type
3-cylinder,
industrial,
liquid-cooled
diesel
Fuel
Capacity
13 gal (49 L)
Oil
Capacity
5.4 qt (5.1 L)
High Coolant Temp/
Low Oil Pressure Shutdown
Standard
1
2
3
4
5
6
7
8
9
10
11
12
7.57
LITERS/HR.
2.00
1.756.62
1.505.67
1.254.73
1.003.78
0.752.84
0.501.98
0.250.95
IDLE
00
0 50 150100 200 250 300 400350
FUEL CONSUMPTION
DC STICK/AUX POWER
(HIGH SPEED)
DC STICK
(LOW SPEED)
DC POWER AMPS AT 100% DUTY CYCLE
02146810
POWER KVA AT 100% DUTY CYCLE
U.S. GAL/HR.
12
Page 3
3
Performance Data (continued)
All Trailblazers have 2 generators—
a 4-pole, 3-phase weld generator and a
strong power generator.
TRAILBLAZER ADVANTAGE: No interaction
between grinders, power tools, etc. and
the welding arc. Generator power is also
independent of weld control settings.
POWER IS IN THE NUMBERS
• Tested and rated at higher temperatures, 104˚ F (40˚ C), to ensure consistent operation in all climates.
• Patented generator control technology matches the generator’s output to engine horsepower providing maximum efficiency
and more weld output.
• The generator is voltage regulated to provide strong power while keeping the voltage 120/240 volts. This increases
tool/motor performance and tool/motor life.
StatorRotor
MINIMUM AND MAXIMUM - MIG MODE
VOLT/AMP CURVES
80
70
60
50
40
VOLTS
30
20
10
0
0 100 200 300 400 500 600
AMPERES
MINIMUM AND MAXIMUM - STICK MODE
80
70
60
50
40
VOLTS
30
20
10
0
0 100 200 300 400 500 600
VOLT/AMP CURVES
AMPERES
DUTY CYCLE CHART
400
350
DC Weld
300
250
AC Weld
200
WELD AMPERES
150
100
0 102030405060708090100
% DUTY CYCLE
300
GENERATOR POWER CURVE
150
250
125
200
100
150
75
AC VOLTS
100
50
50
25
0
0
0 10203040 506070 8090
0 20 40 60 80 100 120 140 160 180
AC AMPERES IN 240V MODE
AC AMPERES IN 120V MODE
12 kW
SIMULTANEOUS WELDING
AND GENERATOR POWER
Weld
Current
(Amps) Watts
0
100
150
200
300
350
Receptacle
12,000
11,000
9,500
7,500
3,000
1,000
120V 1P
Amps
100
90
80
62
25
10
240V 1P
Receptacle
Amps
50
45
40
31
12
5
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4
Genuine Miller Options
Lockable Flame Arrestor Fuel Cap
#043 947 Field
Spark Arrestor Kit #194 871 Field
Full KVA Plug Kit
#119 172 Field
240/120 VAC singlephase, 50 amp plug
(NEMA 14-50P) to fit
full KVA receptacle.
Protective Cover
#195 125 Blue, with Miller logo
Attractive, waterproof cover resists stains
and mildew, and protects the finish of
your welder.
Multioperator
CST™280 #907 244
The CST 280 CC/DC power source can be
run off the machine’s generator to provide
two arcs with only one engine. At only 41 lb
(18.6 kg), it is portable enough to take
anywhere. See Lit. Index No. DC/29.55.
Plasma Cutters
Spectrum®625 #907 058
Economical plasma cutting system
rated to cut 7/8 in. See Lit. Index
No. PC/9.5.
Spectrum 2050 #903 777-01-2
Portable, easy-to-carry unit is an excellent
choice for cutting jobs up to 3/4 in. See Lit.
Index No. PC/7.0.
MIG/Flux Cored Welding
SuitCase™8VS Wire Feeder #194 890
SuitCase™X-TREME™12VS Wire Feeder
#195 500
Lightweight, portable, voltage-sensing
wire feeders include secondary contactor
and gas valve. Require drive roll kit.
See Lit. Index No. M/6.4, M/6.41.
SuitCase
™
8RC Wire Feeder #194 938
SuitCase™12RC Wire Feeder #194 940
Lightweight, modular design and flexible
enough to run a variety of wires up to
.062 in diameter. Comes standard with
remote voltage control. See Lit. Index
No. M/6.5.
Genuine Miller Accessories
Page 5
5
Genuine Miller Accessories
(Continued)
MIG/Flux Cored Welding (Continued)
Spoolmatic
®
30A #130 831
A 1-lb, air-cooled spool gun that extends
the weld process range by adding a handy
portable system for small wire MIG. Rated
200 A at 100% duty cycle. Includes 30 ft
(9.1 m) cable assembly. WC Control
required. See Lit. Index No. M/1.5.
WC-24 Control #137 549
To be used with Spoolmatic 30A.
XR Wire Feeders and Guns
Push-pull system designed to handle
difficult-to-feed soft alloy wires such as
aluminum. See Lit. Index No. M/1.7.
MIG (GMAW)/Flux Cored (FCAW) Guns
Miller produces a complete line of
dependable MIG guns. Check literature
for complete details. See Lit. Index Nos.
AY/16.0 and AY/17.0.
Stick (SMAW) Welding
Weld Leads
#173 851 2/0, 350 A, 100% duty cycle,
50 ft (15.2 m) stinger, 50 ft (15.2 m)
work cable.
#043 952 2/0, 300 A, 100% duty cycle,
100 ft (30.5 m) stinger, 50 ft (15.2 m)
work cable.
TIG (GTAW) Welding
HF-251 Series
#042 388 HF-251D-1, 115 VAC
High-frequency arc starter and stabilizer.
See Accessory Literature, Index No. AY/5.0.
Remote Controls and Switches
RFCS-14 HD Foot Control #194 744
For all Miller solid-state power sources
after serial number JK674521. This new
design increases stability with a larger
base, and durability with a heavier cord.
Maximum flexibility is accomplished with a
reconfigurable cord that can exit the front,
back or either side of the pedal. Foot pedal
provides remote current and contactor
control. Includes 20 ft (6 m) cord and
14-pin plug.
RHC-14 Hand Control #129 340
Miniature hand control for remote current
and contactor control. Dimensions: 4 x 4 x
3-1/4 in (102 x 102 x 82 mm). Includes
20 ft (6 m) cord and 14-pin plug.
RCC-14 Remote Contactor and Current
Control #151 086
Rotary-motion fingertip control. Fastens to
TIG torch using two Velcro strips. Allows
complete current and contactor control at
operator’s fingertips. Includes 28 ft (8.5 m)
cord and plug.
Extension Cords for 14-Pin
Remote Controls
#122 973 25 ft (7.6 m)
#122 974 50 ft (15.2 m)
#122 975 75 ft (22.9 m)
PRHC-14 Hand Control #195 511
For all solid-state power sources after
serial number JK674521. Complete current
or voltage control brings 120 volts GFCI
power to work area in a single cord.
Housed in a durable light aluminum case
and includes 125 ft (38 m) cord with plugs.
Page 6
Trailer Specifications (Subject to change without notice.)
Net
Payload
2650 lb
(1202 kg)
Gross Vehicle
Weight Rating
2960 lb
(1343 kg)
Gross Axle
Weight
Rating
3500 lb
(1588 kg)
Model
HWY-224
Height
of Bed
18-1/2 in
(470 mm)
Road
Clearance
7-1/2 in
(191 mm)
Net
Weight
355 lb
(161 kg)
Track
(Center to
center of tires)
52 in
(1321 mm)
Standard Tires
(Standard rating
or P-size rating)
B-78-13C
Dimensions
Length: 105-1/2 in (2680 mm)
Width: 61 in (1549 mm)*
*
Width at outside of fenders.
6
HWY-224 Trailer #043 805
A 2650 lb (1202 kg) capacity highway
trailer. Welded steel tubing frame, heavyduty axle with roller bearing hubs and leafspring suspension. The HWY-224 comes
with jack stand, 2 in (50 mm) ball hitch,
fenders and lights.
Note: Trailer is shipped unassembled.
Lunette Eye 2-1/2 in (64 mm) #043 824
For use with 224 trailer.
Cable Tree #043 826
Provides an area to conveniently wrap weld
cables and extension cords. For use with
224 trailer.
Trailers and Hitches
(For both models.)
Mounting Specifications
4 Holes
G
A
B
C
D
E
F
Front Panel End
A. 23-5/8 in (600 mm)
B. 21-1/2 in (546 mm)
C. 1 in (25 mm)
D. 15-5/8 in (397 mm)
E. 26-3/8 in (679 mm)
F. 58-3/4 in (1492 mm)
G. 13/32 in (10 mm) Dia.
Overall Dimensions
Height: 30 in (762 mm)
36 in (914 mm)
to top of exhaust
Width: 24 in (610 mm)
Depth: 59-1/2 in (1511 mm)
Page 7
7
Applications
MIG (GMAW) Basic Equipment
SuitCase 8RC #194 938
SuitCase 12RC #194 940
MIG (GMAW) Basic Equipment
Spoolmatic 30A #130 831
WC-24 #137 549
Stick (SMAW) Basic Equipment
MIG Gun
SuitCase
8RC or 12RC
Work
Aluminum MIG with
Spoolmatic 30A Gun
WC-24
Work
Stick Electrode
Work
TIG Torch
TIG (GTAW) Basic Equipment
HF-251D-1 #042 388
Flux-Cored (FCAW) Basic Equipment
Suitcase 8VS #194 890
SuitCase X-TREME 12VS #195 500
Plasma Basic Equipment
HF-251D-1
Work
FCAW Gun
SuitCase
8VS or 12VS
Work
Cutting Torch
Spectrum
Work
Stick Electrode
Multiple Operator Basic Equipment
CST 280 #907 244
CST 280
Work
Any Weld Process
Page 8
Litho in USA
Distributed by:
Equipment and Options Stock No. Description Qty. Price
Trailblazer®Pro 350 D #907 068 Base machine, CC/CV, AC/DC, 12,000 Watts
Options
Spark Arrestor Kit #194 871 Field
Lockable Flame Arrestor Fuel Cap #043 947 Field
Full KVA Plug Kit #119 172 Field
Accessories
Protective Cover #195 125 Blue, with Miller logo
Remote Controls
RFCS-14 HD #194 744 Foot control
RHC-14 #129 340 Hand control
RMLS-14 #129 337 Momentary- and maintained-contact switch
RCC-14 #151 086 Fingertip control
PRHC-14 #195 511 Current/voltage hand control and 120 VAC power
Extension Cords #122 973 25 ft (7.6 m)
#122 974 50 ft (15.2 m)
#122 975 75 ft (22.9 m)
Stick Accessories
Weld Leads #173 851 2/0, 350 A, 100% duty cycle, 50 ft (15.2 m) stinger, 50 ft (15.2 m) work cable
#043 952 2/0, 300 A, 100% duty cycle, 100 ft (30.5 m) stinger, 50 ft (15.2 m) work cable
Stick Electrodes
Flux Cored/MIG Accessories
SuitCase™8VS #194 890 Includes contactor and gas valve. See Lit. Index No. M/6.4
SuitCase™X-TREME™12VS #195 500 Includes contactor and gas valve. See Lit. Index No. M/6.41
SuitCase™8RC #194 938 Includes contactor and gas valve. See Lit. Index No. M/6.5
SuitCase™12RC #194 940 Includes contactor and gas valve. See Lit. Index No. M/6.5
MIG (GMAW)/Flux Cored (FCAW) Guns See Lit. Index No. AY/16.0 and AY/17.0
Gun Consumables
Aluminum MIG Accessories
Spoolmatic®30A/WC-24 Control #130 831/#137 549 See Lit. Index No. M/1.5
XR Wire Feeder and Guns See Lit. Index No. M/1.7
Gun Consumables
TIG Accessories
HF-251D-1 #042 388 See Lit. Index No. AY/5.0
Water Coolant Systems See Lit. Index No. AY/7.2
TIG Torch
Consumables
Tungsten
Multiple Operator Accessories
CST™280 #907 244 See Lit. Index No. DC/29.55
Plasma Cutting Accessories
Spectrum®625 #907 058 See Lit. Index No. PC/9.5
Spectrum®2050 #903 777-01-2 See Lit. Index No. PC/7.0
Trailers and Hitches
HWY-224 Trailer #043 805
Lunette Eye #043 824 For use with 224 trailer
Cable Tree #043 826 For use with 224 trailer
Date: Total Quoted Price:
Ordering Information
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