The SURTEC NTGR6500H2 is a gas engine generator for the jobs where mid-range power has to hold all day: construction sites, small workshops and serious household backup. Rated at 5.5kW with a 6.0kW maximum, it powers multiple tools and equipment at once — at 110-127V or 220-240V, 50Hz or 60Hz, in single-phase or three-phase configuration. Where smaller units force crews to trade turns on a circuit, this one lets the whole shift run together.
The generator engine is the 188F OHV: a single-cylinder, air-cooled, four-stroke unit displacing 389cc, producing 13.0hp and 24.5N·m of torque, with an 88x64mm bore and stroke and an 8.2:1 compression ratio. Its crankshaft and camshaft are forged 42CrMo steel for long-term durability in demanding environments, and SURTEC's patented cylinder design lifts thermal efficiency — holding fuel consumption at or below 370 g/kW·h without compromising output. Electric starting takes the effort out of every cold morning, and the 25L enlarged fuel tank stretches continuous operation across long work shifts, turning refueling from a routine interruption into a rare one.
Power quality is carried by a high-quality SENCI copper-winding alternator — synchronization type with brush design — delivering clean voltage with strong overload capability, so output stays stable even when loads vary. A DC 12V 8.3A output rounds out the package for charging and 12V equipment. For contractors and property managers, that combination means tools start cleanly, lights stay steady and connected equipment stays protected — refrigeration, power tools, lighting and charging gear all drawing from the same stable supply.
The rigid full-frame structure carries upgraded vibration isolation, minimizing operational shaking and prolonging component life during extended shifts. Safety systems complete the picture: a low-oil alert guards the engine against damage, and short-circuit protection watches over both the generator and whatever is plugged into it.
Trusted by contractors, property managers and outdoor power equipment users, the NTGR6500H2 is a reliable, cost-effective inventory choice for hardware retailers, equipment dealers and distributors serving residential, commercial and light-industrial markets. As a generator factory with wholesale-ready capacity, SURTEC supplies stable volumes at competitive pricing, backed by full spare parts support through authorized distributors and dealers. For portable generator suppliers building a portable generator engine line for Latin America, Africa, Eastern Europe and Southeast Asia, the 5.5kW NTGR6500H2 is the heavy-duty anchor that gives the range its backbone.
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