G9512 Gas engine

The Liebherr gas engine G9512 with 12 cylinders in V-arrangement and a displacement of 25 liters has a maximum power of 516kW at 50Hz and of 600kW at 60Hz, respectively. With a mechanical efficiency rating of over 41%, gas engines from Liebherr offer the best efficiency values of their perfomance category. A "plug & play" solution guarantees an easy integration into every application.
Gallery loading.
Power rating at 50Hz / 60Hz 516 kW / 600 kW
Rated speed at 50Hz / 60Hz 1,500 min¯¹ / 1,800 min¯¹
Mechanical efficiency 42.5 %
Fuel Biogas / Natural gas
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Technical data

Full equipment availability Yes
Configuration V-engine
Number of cylinders 12
Displacement 25.0 dm³
Bore 130 mm
Stroke 157 mm
Dry weight 2,150 kg
Dimensions (L/W/H) 1,550 / 1,200 / 1,550 mm
Rated speed at 50Hz / 60Hz 1,500 min¯¹ / 1,800 min¯¹
Power rating at 50Hz / 60Hz 516 kW / 600 kW
Max. effect. mean pressure at 50Hz / 60Hz 16,5 bar / 16,0 bar
Air ratio λ 1.60
Flywheel housing SAE 0
Mass moment of inertia 3.86 kg*m²
Mechanical efficiency 42.5 %
Fuel Biogas / Natural gas
Emission standards TA Luft / TA Luft ½
Areas of application Decentral energy systems

Bulle production site

Liebherr develops and produces diesel and gas engines, injection systems, hydraulic components and splitter boxes in Bulle (Switzerland). Liebherr Machines Bulle SA

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