Net power for the 272D and 299D is up 5 percent, from 90 to 95 hp (67 to 71 kW), and peak torque is increased by 14 percent, providing a significant power increase for these models.
The new Cat 272D skid-steer loader and 299D compact track loader, replacing their C Series predecessors, are now joined by a pair of high-performance counterparts, the 272D XHP and 299D XHP, which are the largest, most powerful skid-steer and compact track loaders Caterpillar has ever built. The new D Series models build on the features of the C Series by adding a more powerful engine, the Cat C3.8, which meets Stage IIIB and Tier IV Interim emissions standards, and by incorporating design features that further enhance lifting, digging and work-tool performance, according to the manufacturer.
The electronically controlled Cat C3.8 engine, designed with a high-pressure common-rail fuel system for operating efficiency, is equipped with the Cat NOx reduction system and a diesel particulate filter for emissions control. Net-horsepower increases for the new D Series models range from 5 to 18 percent and flywheel torque is increased from 13 to 27 percent. The new engine uses a redesigned air-intake flow path for added efficiency, and a dealer-installed pre-cleaner kit is available for dusty, dirty applications.
Larger lift cylinders on all four new D Series models provide a 19-percent boost in lifting force, compared with C Series models. An available electrically activated quick coupler replaces the previously used hydraulically actuated coupler, allowing a simpler design that eliminates hydraulic lines, connectors and valves. Self-relieving quick disconnects allow work tool changes to be made quickly and easily.
Caterpillar’s “Intelligent Leveling” system (ILEV) enables three industry exclusive features: electronic dual self level, work tool return to dig and work tool positioner. The electronic dual self level levels the load both when raising and lowering. This new electronic system also is a plus for reliability, using no hydraulic valves, lines or connectors.
The work tool return-to-dig feature automatically lowers the lift arms and returns the work tool to a preset angle, increasing productivity and decreasing cycle times. The work tool positioner feature automatically returns the work tool to a preset angle, increasing productivity and quality by allowing the work tool (cold planer, forks, trencher, wheel saw, etc) to be returned to a preset angle, even after the machine has been repositioned. In the cab of D Series models is a new dial-type hand throttle, and electronic throttle pedal that provides a “decel” feature when at high idle.
Net power for the 272D and 299D is up 5 percent, from 90 to 95 hp (67 to 71 kW), and peak torque is increased by 14 percent, providing a significant power increase for these models. A robust, 23-gpm (86.4 Lpm) auxiliary hydraulic system allows efficient use of a broad range of work tools on these models, the optional 32-gpm (120 Lpm ) High Flow XPS system, operating at 4,061 psi (28,000 kPa), yields heavy-duty performance and increased productivity.
Rated operating capacity for the 272D is 3,200 lbs. (1,450 kg), and for the 299D, 2,975 lbs. (1,350 kg ) at 35-percent of tipping load. Capacity for the 299D rated at 50-percent of tipping load is 4,250 lbs. (1,928 kg). An optional counterweight kit increases rated operating capacity of these machines to 3,450 lbs. (1,565 kg) and 4,500 lbs. (2,041 kg), respectively. Operating weights are 8,404 lbs. (3,812 kg ) and 10,866 lbs. (4,942 kg), respectively.
272D XHP/29D XHP
Net power for the 272D XHP and 299D XHP is 106 hp (79 kW) and peak torque is 277 lb./ft. (375 Nm). Rated operating capacity is 3,600 lbs. (1,633 kg) for the 272D XHP and 3,185 lbs. (1,445 kg) for the 299D XHP at 35 percent of tipping load. At 50 percent of tipping load, the rated operating capacity of the new Compact Track loader increases to 4,550 lbs. (2,064 kg). Operating weight for the 272D XHP is 9,304 lbs. (4,220 kg ) and 11,647 lbs. (5,283 kg ) for the 299D XHP.
These two new high-performance models are equipped with a 40-gpm (150 Lpm), high-flow hydraulic system operating at 4,061 psi (28,000 kPa) and producing 94 hydraulic hp (71 kW), providing the capability to efficiently handle the largest of hydraulically powered work tools. Both the 272D XHP and 299D XHP models include many features as standard such as enclosed cab with air conditioning, air-ride seat, AMICS system and speed sensitive ride control.
For more information, visit www.Cat.com.