New CAT Equipment

308 CR VAB Mini Hydraulic Excavator

The Cat® 308 CR Variable Angle Boom (VAB) Mini Excavator delivers maximum power and performance in a mini size to help you work in a wide range of applications. The Variable Angle Boom provides the maximum in linkage flexibility in tight applications.

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    Learn more about the 308 CR VAB Mini Hydraulic Excavator

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    Product Specs

    Engine

    Displacement 203 in³
    Note Net power advertised is the power available at the flywheel when the engine is equipped with air cleaner, exhaust system and fan.
    Bore 3.7 in
    Stroke 4.7 in
    Net Power - 2,200 rpm - ISO 9249:2007, 80/1269/EEC 69.5 HP
    Engine Model - U.S. EPA Tier 4 Final/EU Stage V Cat® C3.3B

    Weights

    Operating Weight 20385 lb
    Note (1) *Minimum Weight is based on rubber tracks, no counterweight, operator, full fuel tank, blade, and no bucket.
    Note (2) **Maximum Weight is based on steel tracks with rubber pads, counterweight, operator, full fuel tank, blade, and no bucket.
    Maximum Operating Weight with Standard Stick** 20385 lb
    Minimum Operating Weight with Standard Stick* 19084 lb

    Weight Increase from Minimum Configuration

    Counterweight 552 lb
    Steel Tracks with Pads 752 lb

    Travel System

    Maximum Traction Force - High Speed 6250 lbf
    Travel Speed - Low 1.9 mile/h
    Ground Pressure - Maximum Weight 5.9 psi
    Travel Speed - High 3.2 mile/h
    Gradeability - Maximum 30 degrees
    Ground Pressure - Minimum Weight 5.5 psi
    Maximum Traction Force - Low Speed 15175 lbf

    Service Refill Capacities

    Engine Oil 3 gal (US)
    Cooling System 2.6 gal (US)
    Hydraulic System 29 gal (US)
    Hydraulic Tank 14 gal (US)

    Hydraulic System

    Digging Force - Bucket 13946 lbf
    Operating Pressure - Equipment 4134 psi
    Pump Flow at 2,400 rpm 44 gal/min
    Operating Pressure - Travel 4134 psi
    Digging Force - Stick - Standard 9509 lbf
    Type Load Sensing Hydraulics with Variable Displacement Piston Pump
    Operating Pressure - Swing 3626 psi
    Note Flow and pressure are not combinable. Under load, as flow rises pressure goes down.
    Maximum Auxiliary Circuit - Primary - Pressure at Pump 4134 psi
    Maximum Auxiliary Circuit - Secondary - Pressure at Pump 4134 psi
    Maximum Auxiliary Circuit - Primary - Flow at Pump 35 gal/min
    Maximum Auxiliary Circuit - Secondary - Flow at Pump 9 gal/min

    Swing System

    Machine Swing Speed 10.6 r/min
    Boom Swing - Right 50 degrees
    Boom Swing - Left 60 degrees

    Blade

    Height 17 in
    Width - Wide 96.5 in
    Width - Standard 90.6 in

    Certification - Cab and Canopy

    Roll Over Protective Structure (ROPS) ISO 12117-2:2008
    Tip Over Protective Structure (TOPS) ISO 12117:1997
    Top Guard ISO 10262:1998 (Level II)

    Sound

    Operator Sound Pressure (ISO 6396:2008) 72 dB(A)
    Note European Union Directive "2000/14/EC"
    Average Exterior Sound Pressure (ISO 6395:2008) 99 dB(A)

    Air Conditioning System

    Air Conditioning The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a (Global Warming Potential = 1430). The system contains 1.0 kg of refrigerant which has a CO2 equivalent of 1.430 metric tonnes.

    Dimensions - VAB In

    Dig Depth 150.2 in
    Tail Swing with Counterweight 62.4 in
    Maximum Blade Height 14.6 in
    Track Belt/Shoe Width 17.7 in
    Maximum Dump Clearance 135.8 in
    Vertical Wall 99.2 in
    Boom in Reach 122.8 in
    Ground Clearance 13.8 in
    Swing Bearing Height 29.8 in
    Boom Swing Right 37 in
    Overall Track Width 90.6 in
    Overall Shipping Length 253.9 in
    Transport Height 97.4 in
    Cab Height 100 in
    Overall Undercarriage Length 113.4 in
    Maximum Reach 256.5 in
    Tail Swing without Counterweight 57.1 in
    Maximum Reach at Ground Level 248 in
    Stick Length 71.7 in
    Maximum Blade Depth 16 in
    Boom Swing Left 24 in
    Maximum Dig Height 205.5 in

    Dimensions - VAB Out

    Dig Depth 136.2 in
    Overall Shipping Length 253.9 in
    Stick Length 71.7 in
    Track Belt/Shoe Width 17.7 in
    Swing Bearing Height 29.8 in
    Maximum Blade Depth 16 in
    Maximum Reach at Ground Level 303.7 in
    Transport Height 97.4 in
    Boom in Reach 106.7 in
    Overall Undercarriage Length 113.4 in
    Maximum Reach 310.4 in
    Maximum Dump Clearance 247.4 in
    Ground Clearance 13.8 in
    Vertical Wall 146.7 in
    Tail Swing with Counterweight 62.4 in
    Tail Swing without Counterweight 57.1 in
    Boom Swing Left 24 in
    Maximum Blade Height 14.6 in
    Cab Height 100 in
    Maximum Dig Height 322 in
    Boom Swing Right 37 in
    Overall Track Width 90.6 in
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