The high power density of hydraulic motors means they can provide power to a generator in much less space than that required of a gas or diesel engine.
Loader-backhoes, skid-steer loaders, mini excavators — you name, it, hydraulics is essential to getting work done. But what if you need electrical power for lighting, welders, hand tools, and other AC powered devices? Turns out, hydraulics can help with that, too.
Dynaset Oy, Ylöjärvi, Finland, offers its Dynaset HG hydraulic generators as a cost-effective electrical power source by tapping into a machine's mobile hydraulic system to drive a hydraulic motor, which, in turn, drives an electrical generator.
Conventional solutions rely on a stand-alone generator driven by a dedicated gas or diesel engine, or else workers must route electrical cables in from a stationary source of electrical power. A portable generator requires refueling, maintenance, spare parts, and transportation to the job site. Routing electrical cables to a remote site requires skilled labor, so either of these scenarios adds substantial cost to a work project.
Because a hydraulic motor is so compact, the Dynaset HG is less than half the size of a traditional generator. This allows it to be installed on a mini excavator or other small machine. For example a Dynaset HG 6.5 kVA’s dimensions are 210 ×85 ×340 mm, and it weighs only 42 kg. A mini excavator equipped with an HG 6.5 can produce enough electrical power for an entire work site. Standard power ratings of Dynaset HGs range from 3.5 to 200 kVa in single and three-phase power options. Automatic frequency control regulates frequency to 50 Hz or 60 Hz, and automatic voltage control maintains steady voltage of 115 Vac, 230 Vac, 400 Vac etc.