Caterpillar debuted the 308CR fixed-boom mini excavator at this yr’s International of Concrete in Las Vegas, changing its 307.5 with extra hydraulic energy and potency.
As the most recent addition to Cat’s 8-metric-class lineup, the 308CR brings a brand new compact-radius design with 67% much less overhang when the use of the 550-pound counterweight and 61% much less with the 1,100-pound counterweight.
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Beneath the hood, a 69-horsepower Cat C2.8 Turbo (very similar to Cat’s higher mini excavators) is provided with auto idle, auto engine shutdown and a variable displacement pump for hydraulics. The 308CR’s running weight is available in at 18,659 kilos.
Caterpillar greater digging intensity to fifteen ft 5 inches and most succeed in to 22 ft 8 inch within the long-stick configuration. Minimal-maximum configuration elevate capacities have additionally greater when running over the entrance with blade down and over the aspect.
Greg Worley, marketplace skilled at Caterpillar, says the 308CR meshes neatly with the rising pattern of city redevelopment.
“We are doing increasingly more brownfield building,” Worley says. “Mainly, we are going again in redeveloping or filling within the areas in urbanized spaces; [there’s] much less inexperienced development happening at the present time.”
“So while you move into those urbanized spaces, you wish to have as a lot energy efficiency and capacity within the gadget’s smallest package deal imaginable,” he continues. “In order that’s why shifting from a regular tail swing gadget within the 8-ton platform with a set growth to that compact radius is essential as we get extra achieved in those smaller, tighter environments.”
Excavator Highlights
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In comparison to the 307.5, different upgrades at the 308CR come with greater monitor width of seven ft 7 inches and greater undercarriage period of 9 ft 5 inches.
Within the sealed and pressurized cab, operators will in finding:
- Subsequent-gen observe with customizable personal tastes.
- Same old Cat stick steer with button activated switching from lever and paddle to joystick regulate.
- Fluorescent seatbelt. (A seatbelt reminder device is non-compulsory.)
- Cruise regulate choices.
- Stepped forward air-con.
- Adjustable wrist rests.
- Suspension seat.
The 308CR options ground-level regimen test issues with grouped carrier issues, a back-up digital camera, aspect digital camera and paintings lighting fixtures.
To be had monitor choices at the 308CR come with rubber belt, metal monitor and metal monitor with rubber pad.
Operators gained’t must replace their paintings software lineup, because the 308CR provides the similar pin sizing because the 307.5. The excavator’s load sensing hydraulics, with the variable displacement piston pump, be offering 44 gallons in step with minute of oil glide. The principle auxiliary circuit pumps 35 gallons in step with minute, and the second one auxiliary circuit’s most glide is available in at 9 gallons in step with minute.
More than one Tech Choices
Contractors can choose from two instrument applications from the manufacturing unit, which may also be added as a box improve equipment:
- Cat Point out — Provides visible and audible signs for figuring out bucket placement relative to focus on grade and will also be programed to a flat grade or slope. It is best fitted to duties like footings, septic techniques, foundations and slope paintings.
- Cat E-Fence — Restrains the 308CR’s movement to preset E-Ceiling and E-Ground limitations when operating in tight areas, together with underneath energy strains, ceilings and timber and above fiberoptic cables and utilities. An E-Wall surroundings too can confine vary of movement in entrance of the 308CR.
Further generation choices for the 308CR come with the Laser Catcher for making a constant reference level around the jobsite, the aftermarket Cat Grade automatics for surroundings digging and leveling parameters for easy and sophisticated designs, and Cat Grade 3-d for reaching real-time kinematic positioning steering on advanced jobs.
Caterpillar 308CR Mini Excavator Specifications:
- Running weight: 18,659 kilos
- Engine: Cat C2.8 Turbo
- Horsepower: 69
- Tail swing: 56 inches (551-pound counterweight), 58 inches (1,103-pound counterweight), or 51 inches (no counterweight)
- General width: 91 inches
- Elevate capability: 3,186 kilos (14.8-feet elevate level peak, lengthy stick, over entrance)
- Max succeed in: 22 ft 8 inch
- Max dig intensity: 13 ft 7 inches (same old stick), 15 ft 5 inches (lengthy stick)
- Digging pressure: 9,285 pound-feet (same old stick), 8,250 pound-feet (lengthy stick)
