The Frontier® 500X is the powerful engine-driven welder/generator, delivering top-tier arc performance and the latest welding technology for unmatched jobsite versatility. Its multi-process capabilities support both CC and CV modes, including advanced features for STT®, pulse welding, and mechanized applications. A next-generation 7-inch digital display offers an intuitive, operator-friendly interface with features like weld memory save/recall, maintenance reminders, and optional PIN access. Additional innovations like Auto-Stop/Start reduce fuel use and engine wear, while CrossLinc® Technology enables voltage and current control right at the arc—boosting productivity, safety, and weld quality.cold-weather and high altitude environments. Now better than ever, the machine features CrossLinc Technology to provide welders with greater control at the arc to help improve safety, productivity, and quality.
Features
- Rent-Ready Package – Product comes in one preassembled package from the factory. Ready-Pak® 1 option includes the welder, trailer, fender and light kit, and cable rack.
- Continuous Auxiliary Power – Provides up to 15 kW of steady three-phase power to run heavy-duty tools including plasma cutters, pumps, and inverter welders.
- Built for the Toughest Jobs – Rugged, reliable design backed by industry-leading support and a 3-year warranty
- Next-Gen Display – Bright, rugged 7” digital interface with memory storage, maintenance alerts, and optional PIN security for simplified operation and machine control.
- Ultimate Jobsite Versatility – Delivers up to 525 amps of welding power across six optimized CC and CV modes—plus advanced support for pulsed TIG, MIG, STT®, and mechanized systems.
- Fuel Efficient, Built to Run – A 20-gallon (75.7 L) fuel tank paired with Auto-Stop/Start technology minimizes idling, cuts fuel costs, and extends engine life.
- CrossLinc® + True Voltage Technology™ – Adjust machine output directly at the arc—no control cable required. Enhances safety, reduces jobsite clutter, and compensates for voltage drop automaticall
- Proven Diesel Performance – Powered by a 48.6 hp turbocharged Kubota® diesel engine for smooth, quiet operation that meets EPA Tier 4 Final emissions standards.
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Welding Output: Up to 525 A
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Auxiliary Power: 15 kW steady three-phase
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Open Circuit Voltage: 71 V OCV @ 1800 RPM
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AC Generator Power: Single Phase: 12 kW continuous, 15 kW peak; Three Phase: 20 kW continuous, 21 kW peak
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Engine Power: 48.9 hp Turbocharged Kubota Diesel
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Engine Emissions: EPA Tier 4 Final
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Operating Speed: High Idle 1800 RPM, Low Idle 1500 RPM
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Displacement: 148.5 cu in (2.43 L)
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Bore x Stroke: 3.43 in x 4.031 in (87 mm x 102.4 mm)
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Fuel Tank Capacity: 20 gal (75.7 L)
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Fuel Capacity: 20 gal (75.7 L)
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Oil Capacity: 10 qts (9.5 L)
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Cooling System Capacity: 9 qts (8.5 L)
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Weight: 1462 lb (663 kg)
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Dimensions: 40.4 in x 28.4 in x 65.0 in (1027 mm x 721 mm x 1651 mm)
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Welding Modes: CC, CV, STT , Pulse, Mechanized
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Display: 7 in digital interface with memory, maintenance alerts, optional PIN security
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Technology: CrossLinc , True Voltage TechnologyTM
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Auto-Stop/Start: Yes
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Country of Origin: 99
Downloads
Spec Sheet
