Cummins now offers a 49- to 4,000-hp (37-2,983 kW) engine lineup, from the 2.8-L, 4-cylinder QSF2.8 – ideally suited for compact underground loaders – to the 95-L, 16-cylinder QSK95, designed for ultra-high-class haul trucks and excavators. The QSK95 reaches mining power output previously available only from 20-cylinder engines. High power density is achieved with a hardened power cylinder featuring the strongest single-piece forged-steel piston available in the industry, notes the company. Deep structural strength is provided by an all-new ductile iron-skirted block. This increased strength contributes to higher engine uptime availability, extended life-to-overhaul and more cost-effective rebuilds. The QSF2.8 is the smallest engine to be introduced by Cummins for the off-highway industry, with full-authority electronic controls driving a High Pressure Common Rail (HPCR) fuel system. The design of the QSF2.8 brings premium performance characteristics associated with larger Cummins engines to compact equipment below 75 hp (56 kW) for the first time, ensuring maximum uptime and reliability for mine operations.
Cummins Inc., www.cummins.com