Cummins QSF2.8 Engines by Machine Application

Oscillatory compaction on the Sakai SV414ND lets the operator switch between oscillation and vertical vibration in the same drum, useful in no-vibe zones near structures. The eight ton class, 67 inch roller draws on a Cummins QSF2.8 producing 74 hp. Sakai drives oscillation through gears rather than belts, so the engine sees a direct mechanical load with no belt slip absorbing shock.

Erosion control and hydroseeding crews running the FINN T170 work behind a Cummins QSF 2.8 rated 65 hp and 48 kW to EPA Tier 4 Final. The engine drives a centrifugal pump through an over-center clutch on a single shaft, moving 320 gallons per minute at 115 psi from a 1,500 gallon working tank. Highway, mine reclamation and large commercial sites all load this unit hard.

Geotechnical drilling contractors running the CME-45B rely on a Cummins QSF 2.8 producing 65 hp from 171 cubic inches to Tier 4 Final. The four-cylinder turbo diesel feeds a heavy-duty clutch and four-speed transmission delivering up to 4,858 lb-ft of rotary torque. Mounted under 26,000 lb GVWR so no CDL is needed, these rigs run auger and coring work continuously.

Soil boring and environmental drilling on the CME-45C is powered by a Cummins QSF 2.8L rated 65 horsepower at 48.5 kW under EPA Tier 4 Final. Twin 68 inch stroke hydraulic feed cylinders sit in line with the rotary drive coupling, putting force straight onto the tooling. The same drill is configured on truck, trailer, skid, ATV, tracked carrier and helicopter-portable mounts.

Rubber track carrier versions of the CME-45C, cataloged as the CME-45C/300, carry the same Cummins QSF 2.8 turbocharged four-cylinder at 65 hp and Tier 4 Final. Steel core reinforced tracks with embedded grousers carry the rig onto ground a truck cannot reach, and each track runs its own hydraulic motor and planetary drive off engine power. Rotary speeds reach 760 rpm.

Pavement marking removal crews running the MRL Mini GrinderPro work behind a Cummins QSF 2.8 rated 74 hp, a four-cylinder Tier 4 Final turbo diesel. The engine carries an eight inch cutting head up to 13 inches wide plus a 1,500 CFM vacuum system and 60 CFM air supply on a 7,700 lb machine. Grinding, grooving and slot cutting load the unit continuously through a shift.

Carrydeck cranes working inside plants and refineries use the Cummins QSF 2.8L diesel, rated 55 kW with no DEF requirement, in the Grove GCD09. The crane lifts 8.1 tonnes on a 33.2 foot three-section boom and carries 14,000 lb on the deck. Confined-space industrial lifting means long idle and duty hours on the engine rather than road miles.

Compact track loaders take on hours faster than almost anything else on a jobsite, and the ASV Posi-Track RT-75 runs a Cummins QSF2.8 turbocharged 2.8-liter making 74 hp and 221 lb-ft. Tier 4 Final compliance comes through a diesel oxidation catalyst alone, with no regeneration, no sensors and no DEF to manage. Rated operating capacity is 2,650 lb at 3.6 psi ground pressure.

Heavy-duty forestry and mulching work on the ASV Posi-Track RT-75 HD is carried by a Cummins QSF2.8 at 74 hp, delivering 221 lb-ft of torque through direct-drive hydraulic motors with no planetary drives to service. The 2.8-liter meets Tier 4 Final with a diesel oxidation catalyst that needs no regeneration or exhaust fluid. Three-panel hood and tilting cooler open the engine bay for service.

MAX-Series cab versions of the ASV Posi-Track RT-75 keep the same Cummins QSF2.8 turbo diesel at 74 hp and 221 lb-ft, paired with high-flow auxiliary hydraulics up to 35.7 GPM at 3,300 psi. Attachment-heavy work loads the 2.8-liter continuously rather than in bursts. Operating weight runs 9,060 lb with rated capacity up to 2,800 lb depending on configuration.

Trailer-mounted dewatering pumps built by Cummins under the QSF4X4 and QSF6X6 names run on the QSF2.8 at 74 hp with 221 lb-ft of peak torque. The 4x4 moves up to 1,350 gpm against 150 feet of head; the 6x6 reaches 2,600 gpm at 104 feet. Heavy cast iron construction and continuous pumping duty in construction, mining and wastewater work load the 2.8-liter around the clock

Twin-engine configuration of the Schwarze A4 Storm regenerative air sweeper is driven by a Cummins QSF 2.8L auxiliary engine rated 74 HP to Tier IV Final. That unit turns a 30 inch closed-face turbine moving 12,000 CFM behind an 80 inch pickup head, feeding a 4.5 cubic yard hopper. Non-CDL municipal routes run daily, so the QSF 2.8 accumulates hours far faster than chassis mileage suggests.