The next generation 349 and 352 excavators from Cat offer contractors up to 45 percent more operating efficiency, up to 10 percent more fuel efficiency, and up to 15 percent less maintenance costs compared to previous models, the 349F and 352F, respectively.
Technology boosts efficiency
The 349 and 352 have the industry’s highest level of standard factory-installed technology to enable the improved operating efficiency, including Cat Grade with 2D. The system gives operators visual guidance to grade via the standard touchscreen monitor so they can make more accurate cuts. The system is readily upgradable to Cat Grade with Advanced 2D or Cat Grade with 3D for enhanced accuracy.
Grade Assist automates boom and bucket movements to help operators of all skill levels improve their results.
Cat Payload helps operators increase loading efficiency with on-the-go weighing; real-time payload estimates can be calculated without swinging to help prevent overloading and underloading trucks.
Lift Assist quickly calculates the weight of the actual load being lifted and compares the result to the rated capability of the excavator. Visual and auditory alerts indicate whether the machine is within a safe working range.
E-Fence prevents the excavator from moving outside operator-defined points. This helps protect the machine, underground utilities, and other objects from damage.
Cat Product Link provides a constant stream of wireless information available via the online VisionLink interface, allowing machine managers in the office to quickly evaluate critical operating information.
Fuel efficiency is work per unit of fuel, and the 349 and 352 do more work per unit than previous models.
The new Smart Mode system automatically matches engine and hydraulic power to digging conditions, reducing fuel consumption and optimizing performance. Engine speed automatically lowers when hydraulic demand diminishes, further reducing fuel usage.
The cooling system features a new on-demand fan that’s designed to operate only when required, saving fuel and ensuring maximum efficiency. An available reverse function assists with cleaning debris from the cooling cores — another plus for enhanced efficiency.
The new electrohydraulic control system is built for responsiveness and efficiency; its main control valve eliminates the need for pilot lines, reduces pressure losses, and lowers fuel consumption. Fewer hydraulic lines result in less required oil and lower long-term operating costs.
Extended and synchronized maintenance intervals contribute to lower long-term costs of the 349 and 352.
The new Cat air filter with an integrated pre-cleaner and primary and secondary filters provides double the dust-holding capacity of the previous design.
The new Cat hydraulic return filter has a 3,000-hour service life — a 50 percent increase over previous filters.
Fuel system filters are synchronized for service at 1,000 hours — a 100 percent increase over the previous filters.
The fuel system’s water and sediment drains and hydraulic system’s oil level check are positioned close together at ground level, making routine daily maintenance faster, easier, and safer.
With a Deluxe cab, the 349 and 352 are designed to provide operators with maximum comfort and safety. Performance-enhancing features like keyless pushbutton start, large touchscreen monitor with jog dial keys for control, and a sound-suppressed rollover protective structure (ROPS) come standard.
- Following are other cab amenities that are sure to please operators:
- Tilt-up console that allows easy cab entry and exit
- Advanced viscous cab mounts that reduce vibration as much as 50 percent compared with previous models
- Bluetooth integrated radio with USB ports for connecting and charging phones
- Automatic climate control that maintains temperature settings regardless of ambient temperatures
- Programmable joystick buttons that allow setting control patterns and hydraulic response rates, permitting machine operation to be tailored to individual preferences.
- Large front, rear, and side windows along with standard rearview and right-hand-side cameras to enhance visibility
- An optional 360-degree-visibility package combines images from multiple cameras to enhance the operator’s sight lines in all directions
For more information about the 349 and other Next Generation Cat hydraulic excavators, contact the local Cat dealer or visit the Caterpillar website.