The new Cat 815K soil compactor, weighing 49,353 pounds and equipped with a Cat C7.1 ACERT U.S. EPA Tier 4 Final/EU Stage IV engine, is designed for heavy-duty compaction and dozing operations.
This durable design, which lasts through multiple life cycles, provides optimum customer value with high production and low-cost operation. The Caterpillar built power train ensures reliability in this difficult application, and the 815K’s wheel design delivers high ground pressures. In addition, the available Cat Compaction Control system and Cat COMPACT technologies provide compaction measurement and mapping capabilities that enhance the overall efficiency of the compaction process.
Structures and wheels
The 815K’s full-box-section rear frame resists torsional shock, twisting forces, and heavy-duty steering-cylinder mounts that dissipate steering loads into the frame. Axle mounting is designed to provide increased structural integrity. This robust design combines with high-strength materials and robotic welding to ensure durability and overall machine strength.
Available for the 815K is the Cat Compaction Control system, which uses Machine Drive Power technology to measure rolling resistance and to correlate resistance with soil stiffness. The MDP system works in both cohesive and granular soils. An optional 3D mapping system correlates compaction measurements with the machine’s location, providing a graphic, real-time view of compaction progress and a record of compaction results.
The 815K’s Cat C7.1 ACERT engine, developing 248 net horsepower (185kW), features innovative Cat electronics, fuel injection process, air-management system, and emissions controls, including the Cat NOx (nitrogen oxide) reduction system and selective-catalytic-reduction and diesel- particulate-filter (DPF) after-treatment systems. The DPF regenerates (eliminates accumulated soot) without interrupting the work cycle. The high-pressure, common-rail fuel system contributes to fuel efficiency, as does the 815K’s automatic idle-shutdown system.
Operator amenities and safety
The 815K’s comfortable, well-appointed cab is isolation-mounted to reduce vibration and sound, and a Cat Comfort Series III air-suspension seat adds to operator comfort. Temperature control is automatic, and a cab-pressurization system uses filtered air to keep the cab environment clean and fresh. Expansive glass areas ensure all-around visibility, enhanced by a rearview camera.