Miller Electric Trailblazer Pro 350 D User Manual

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: [phone]
USA FAX: [phone]
Canadian FAX: [phone]
International FAX: [phone]

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.

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

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