Miller Trailblazer 330: Gas Engine-Driven Welder
The Miller Trailblazer 330 offers reliable engine-driven welding with industry-leading arc performance, providing a smooth and stable arc. It is designed for industrial applications, fabrication, maintenance, repair, structural steel work, and sheet metal work.
Quick Specs
| Industrial Applications | Processes | Output Range (gas models) | Auxiliary Power Output |
|---|---|---|---|
| Fabrication, Maintenance, Repair, Structural steel work, Sheet metal, Pipe | Stick (SMAW), MIG (GMAW)*, Flux-cored (FCAW)*, DC TIG (GTAW), Air carbon arc (CAC-A) cutting and gouging (rated: 3/16-inch carbons, capable: 1/4-inch carbons), Air plasma cutting and gouging with optional Spectrum® models. *With wire feeder. | DC stick 20-330 A, MIG/flux-cored 15-40 V, DC TIG 20-330 A | Rated at 104°F (40°C): 12,000 watts peak, 10,500 watts continuous. Electronic Fuel Injection (EFI) (option). Excel™ Power (option): 2,400 watts (120 V, 20 A) 60 Hz pure sine power at all speeds. Battery Charge/Crank Assist (option on EFI models): 12/24 V, 150 A charge; 12/24 V, 300 A crank assist. |
Key Features and Technologies
- Dynamic DIG™ Technology: Ultra-adaptive arc control that automatically adjusts current to clear a short, providing a smoother, more consistent arc tailored to application, material, fit-up, and welder technique.
- ArcReach™ Technology: Allows parameter control at the wire feeder or pendant without a control cord, using the existing weld cable for communication.
- Auto-Set™ Technology: Offers predefined weld settings for ease of use and correct job completion for operators of all skill levels.
- Data Visibility: Predictive maintenance information and productivity screens for monitoring machine use and planning service.
- Direct Spool Gun Connection: Integrated 10-pin connection for easy aluminum welding with Spoolmate™ and Spoolmatic® spool guns.
- Advanced Auto-Speed™ Technology: Matches engine speed to load, reducing fuel consumption and noise levels. Automatically varies engine speed from 1,800-3,600 rpm to match demands.
- Small, Light Design: Over 80 pounds lighter and 13 percent smaller than previous models, offering easier mobility and reduced truck space usage.
- Long Runtimes: 11-gallon fuel capacity for extended operation.
- Easy Maintenance: Intuitive design with front panel maintenance displays, easy oil checks, toolless panels, and single-side fuel fill/oil drain.
- Reversed Air Flow: Optimized cooling design with the engine rotated forward for more efficient airflow, reducing sound and size.
- Wireless Interface Control (Option): Full machine control from a handheld device for changing processes, adjusting parameters, and more.
- Electronic Fuel Injection (EFI) (Option): Improves fuel efficiency (up to 42% more than carbureted models), provides faster starts, and enhances high-altitude performance.
- Excel® Power (Option): Provides 2,400 watts of 120-volt pure sine-wave auxiliary power at idle and while welding, allowing operation of tools at fuel-saving speeds.
- Battery Charge/Crank Assist (Option): Capability to charge dead batteries (12/24 V, 150 A) or jump-start engines (12/24 V, 300 A).
Technical Specifications
| Welding Mode | Process | Amp/Volt Ranges | Rated Weld Output at 104°F (40°C)* | Single-Phase Auxiliary Power | Sound Levels at 7 m (23 ft.) | Dimensions (H x W x D) | Net Weight** |
|---|---|---|---|---|---|---|---|
| CC/DC | Stick/TIG | 20-330 A | 330 A at 30 V, 100% duty cycle; 325 A at 30.25 V, 100% duty cycle | Peak: 12,000 watts; Continuous: 10,500 watts; Excel™ power (optional): 2,400 watts, 20 A at 120 V, 60 Hz pure auxiliary power at idle speed and while welding. | Weld (150 A load): 65 dB (90 Lwa); Weld (330 A load): 73.5 dB (98.5 Lwa); Auxiliary power (Excel power): 65 dB (90 Lwa); Auxiliary power (12 kW standard): 73.5 dB (98.5 Lwa) | H: 26.5 in. (673 mm); H (to top of exhaust): 31.2 in. (792 mm); W: 20.13 in. (511 mm); D: 37.06 in. (941 mm) | 400 lb. (181 kg) |
*Rated at sea level. **Net weight without fuel. Certified by Canadian Standards Association to both Canadian and U.S. Standards.
Engine Specifications
| Model | Engine Brand and Warranty | Horsepower (HP) | Type | Weld Speed | Idle Speed | Fuel Capacity | Oil Capacity | Standard Shutdowns |
|---|---|---|---|---|---|---|---|---|
| Trailblazer 330* | Kohler CH730, 3-year warranty | 23.5 hp at 3,600 rpm | Twin-cylinder, four-cycle overhead valve, air-cooled industrial engine | Auto-Speed™ 2,400, 2,800, 3,200 or 3,600 rpm | 2,400 rpm | 11 gal. (41.6 L) | 1.5 qt. (1.4 L) | Low oil pressure |
*Fuel stabilizer is recommended for gas engines that are used infrequently.
Mounting Specifications
Refer to the following diagram for mounting hole dimensions:
- A: 20 in. (508 mm)
- B: 16.5 in. (419 mm)
- C: 1.75 in. (44.5 mm)
- D: 3.18 in. (81 mm)
- E: 22.3 in. (566 mm)
- F: 37 in. (940 mm)
- G: 0.406 in. (10.3 mm) diameter (4 Holes)
For truck installation information, visit MillerWelds.com/WTdrawings.
Comparison: Bobcat vs. Trailblazer Engine Drives
| Fuel System | Bobcat 230 | UPGRADE | Bobcat 285 | UPGRADE | Trailblazer 330 |
|---|---|---|---|---|---|
| Fuel Type | Gasoline | Gasoline or LP | Gasoline | ||
| Delivery | Carburetor (manual choke) | Carburetor (gas: eChoke™ / LP: manual choke) | Carburetor (eChoke™) or EFI | ||
| Weld Output | DC only, CC/CV | DC only, CC/CV | DC only, CC/CV | ||
| Processes | Stick / MIG / FCAW | Stick / TIG / MIG / FCAW / Gouge | Stick / TIG / MIG / FCAW / Gouge | ||
| Amperage Range | 20-230 A | 20-265 A | 20-330 A | ||
| Voltage Range | 14-25 V | 14-28 V | 15-40 V | ||
| Auxiliary Power (Peak Watts) | 11,000 watts | 11,000 watts | 12,000 watts | ||
| Auxiliary Power (Continuous Watts) | 9,500 watts | 9,500 watts | 10,500 watts | ||
| Sound Levels (Maximum / At Idle) | 73.1 dB / 64 dB | 73.1 dB / 64 dB | 73.5 dB / 65 dB | ||
| Dimensions (H x W x D) | 26.5 x 20.13 x 37.06 in. | 26.5 x 20.13 x 37.06 in. | 26.5 x 20.13 x 37.06 in. | ||
| Weight | 376 lb. | 382 lb. | 400 lb. | ||
| Key Features (Display) | Knob | LCD | LCD | ||
| Key Features (Maintenance) | Fuel / hour / oil | Predictive maintenance | Predictive maintenance | ||
| Key Features (Auto-Set™) | — | Yes | Yes | ||
| Key Features (Battery Charge / Crank Assist) | — | 150 A charge / 300 A crank (option) | 150 A charge / 300 A crank (option) | ||
| Key Features (ArcReach™) | — | Yes (option) | Yes (standard) | ||
| Key Features (Spool Gun) | — | Direct connect | Direct connect | ||
| Key Features (Remote Start/Stop) | — | Yes | Wireless interface control (option) |
Function and Benefit Guide
The Trailblazer 330 features an intuitive digital interface:
- Digital display: Provides weld process and parameters, fuel level, maintenance, and machine use information.
- USB port: Allows software updates and saving of recorded data to a USB drive.
- Standard 14-pin receptacle: For connecting remote controls and wire feeders. Includes Auto Remote Sense™ for automatic amperage/voltage control switching.
- Optional battery charge/crank assist receptacle.
- Pushbutton main control knob: Used for adjusting amperage/voltage and accessing the service menu.
- Standard 10-pin receptacle: For connecting spool guns.
- Pushbuttons: Used for selection of weld process, menu, and other machine features.
- Engine control switch: Starts the engine and selects between auto idle and high speed lock positions.
- Auto-Set™ button: Provides process-specific pre-defined parameters.
- 120/120/240 V receptacle: With circuit breaker.
- 240 V receptacle: With circuit breaker.
- Optional Excel™ power: Provides pure auxiliary power at idle speed and while welding.
Note: If Trailblazer is ordered without Excel power option, unit is shipped with two 20 A, 120 V duplex receptacles with circuit breakers and ground fault protection.
Genuine Miller Options and Accessories
Enhance your Trailblazer 330 with a range of factory-installed and field-installable options and accessories:
Factory Installed Options (on EFI models)
- Electric Fuel Pump (301741): Recommended for gas engine operations above 5,000 feet for improved starting and high-output performance.
- Spark Arrestor (300924): Mandatory in certain areas; check state and local laws.
- Full KVA Adapter Cord (300517): Adapts 120/240 V plug to common Millermatic® and Spectrum® 240 V plugs.
Genuine Miller Accessories
- Running Gear: Available in Off-Road (301706), Off-Road with Protective Cage (301707), and Multi-Terrain (301708) options, featuring Never Flat® tires for reduced downtime and enhanced maneuverability.
- Protective Cage with Cable Holders (301709): Protects the investment and provides cable management.
- Gas Cylinder Mounting Assembly (301711): For use with running gear or by itself.
- 25-foot Battery Charge/Jump Cables with Plug (300422).
- Protective Covers (301712, 301713): Water- and mildew-resistant covers to protect the welder's finish.
- Wireless Interface Control Replacement Kit (288137): For machines equipped with wireless interface control.
- Wireless Interface Control Protective Covers (287594): Screen protectors for the remote.
MIG/Flux-cored Welding Accessories
- Millermatic® Series MIG Welders: Portable and easy-to-use power source, wire feeder, and gun packages.
- ArcReach® SuitCase® 8 & 12 Wire Feeders: Portable feeders designed to run off arc voltage.
- SuitCase® 12 RC Wire Feeder: Lightweight feeder with remote voltage control.
- Spoolmatic® 30A and Spoolmate™ 200 Spool Guns: For aluminum and other soft alloy wires.
XR™ Wire Feeder and Guns
Push-pull system designed for feeding difficult wires like aluminum. Refer to literature DC/34.0 and M/1.71 through M/1.74.
Stick (SMAW) Welding Accessories
- 2/0 Stick Cable Sets: Available in 50 ft. (15 m) (173851) and 100/50 ft. (30.5/15 m) (043952) lengths.
TIG (GTAW) Welding
Dynasty® 210 Series: For portable AC/DC TIG welding. See literature AD/4.81.
Multiprocess Welding
Multimatic® 215: Portable, all-in-one multiprocess welder for MIG, TIG, and Stick welding. Features multi-voltage plug (MVP™) for 120- or 240-volt power.
Remote Solutions
- ArcReach® Stick/TIG Remote (301325): Provides remote control without a control cord.
- Wireless Remote Hand Control (301582): For remote current, voltage, and contactor control with up to a 300-foot operating range.
- RHC-14 Hand Control (242211020): Miniature hand control for remote current and contactor control.
- PRHC-14 Hand Control (195511): Provides current or voltage control with 120 volts GFCI power.
- Extension Cables for 14-Pin Remote Controls: Available in 25 ft. (242208025), 50 ft. (242208050), and 80 ft. (242208080).
- Remote Output Panel Kit (951850): For locating auxiliary power and weld outputs at the point of use.
Plasma Cutting
Spectrum® 375 X-TREME™, 625 X-TREME™, and 875: Plasma cutters for various cutting needs. The 375 and 625 X-TREME models include a protective X-CASE™.
Trailers and Hitches
- HWY-Mid Frame Trailer (301438): Highway trailer with a 1,424-pound capacity, featuring a welded steel frame, leafspring suspension, and dual hitch.
- Cable Tree (043826): Conveniently wraps weld cables and extension cords.
- 2-In-1 Document/Fire Extinguisher Holder (301236): Stores documents and holds a fire extinguisher.
Ordering Information
Contact Miller Electric Mfg. LLC for specific product configurations and pricing.
| Equipment and Options | Stock No. | Description |
|---|---|---|
| Trailblazer® 330 (Kohler engine) | 907831 907831001 |
Base model With Excel™ power |
| Trailblazer® 330 EFI (Kohler engine) | 907832 907832001 907832002 907832003 907832004 907832005 907832006 |
Base model With Excel™ power With Excel™ power and wireless interface control With Excel™ power and battery charge/crank assist With Excel™ power, battery charge/crank assist and wireless interface control With Excel™ power and polarity reversing With Excel™ power, polarity reversing and wireless remote control |
| Field Options (Installation required) | ||
| Electric Fuel Pump | 301741 | Recommended for gas engine operations at altitudes above 5,000 feet |
| Spark Arrestor | 300924 | |
| Full KVA Adapter Cord | 300517 | |
| Full KVA Plug | 119172 | |
| Engine Tune-Up Kits | 284083 246115 |
For Kohler CH730 (carb). Includes air and fuel filters, and two spark plugs For Kohler ECH730 (EFI). Includes air and fuel filters, and two spark plugs |
| Accessories | ||
| Off-Road Running Gear | 301706 | With Never Flat™ tires |
| Off-Road Running Gear with Protective Cage | 301707 | With Never Flat™ tires |
| Multi-Terrain Running Gear | 301708 | With Never Flat™ tires |
| Protective Cage with Cable Holders | 301709 | |
| Gas Cylinder Mounting Assembly | 301711 | Not recommended for use with protective cover |
| 25-foot Battery Charge/Jump Cables w/Plug | 300422 | |
| Protective Covers | 301712 301713 |
For use without protective cage or running gear For use with protective cage and/or running gear |
| Wireless Interface Control Replacement Kit | 288137 | Includes replacement remote, magnetic lanyard, USB charger, 110-volt adapter, and two screen protectors |
| Wireless Interface Control Protective Covers | 287594 | Five-pack of screen protectors for wireless interface control remote |
| MIG/Flux-cored Welding | ||
| Millermatic® Series MIG Welders | See page 6 | |
| Wire Feeders | See page 7 | |
| Spool Guns | See page 7 | |
| XR™ Wire Feeder and Guns | See literature DC/34.0 and M/1.71 through M/1.74 | |
| Stick Welding | See page 7 | |
| TIG Welding | See page 7 | |
| Multiprocess Welding | See page 7 | |
| Remote Solutions/Extension Cables | See page 7 | |
| Plasma Cutting | See page 7 | |
| Trailers and Hitches | ||
| HWY-Mid Frame Trailer | 301438 | Trailer with lights, fenders and dual hitch. For highway use |
| Cable Tree | 043826 | Trailer-mounted cable holder |
| 2-In-1 Document/Fire Extinguisher Holder | 301236 | Stores documents and holds a five-pound fire extinguisher |
Contact Information
Miller Electric Mfg. LLC
An ITW Welding Company
1635 West Spencer Street
P.O. Box 1079
Equipment Sales US and Canada Phone: 866-931-9730
FAX: 800-637-2315
International Phone: 920-735-4554
International FAX: 920-735-4125
Website: MillerWelds.com
