New CAT Equipment

308 CR Mini Hydraulic Excavator

The Cat® 308 CR Mini Excavator delivers maximum power and performance in a mini size to help you work in a wide range of applications.

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    Product Specs

    Engine

    Net Power 69.5 HP
    Engine Model Cat C3.3B
    Stroke 4.7 in
    Bore 3.7 in
    Gross Power - SAE J1995 74.3 HP
    Displacement 203 in³
    Rated Net Power - 2,200 rpm - U.S. EPA Tier 4 Final/EU Stage V - ISO 9249/EEC 80/1269 69.5 HP

    Weights

    Operating Weight 20077 lb
    Note (1) *Minimum Weight is based on rubber tracks, no counterweight, operator, full fuel tank, standard stick, blade and no bucket.
    Note (2) **Maximum Weight is based on steel tracks with rubber pads, counterweight, operator, full fuel tank, long stick, blade and no bucket.
    Maximum Operating Weight with Cab** 20077 lb
    Minimum Operating Weight with Cab* 18610 lb

    Weight Increase from Minimum Configuration

    Steel Tracks with Pads 752 lb
    Counterweight 552 lb
    Long Stick 146 lb

    Travel System

    Maximum Traction Force - High Speed 6250 lb
    Ground Pressure - Maximum Weight 5.8 psi
    Ground Pressure - Minimum Weight 5.4 psi
    Travel Speed - High 3.2 mile/h
    Travel Speed - Low 1.9 mile/h
    Maximum Traction Force - Low Speed 15175 lb
    Gradeability - Maximum 30 degrees

    Service Refill Capacities

    Fuel Tank 39 gal (US)
    Hydraulic System 29 gal (US)
    Hydraulic Tank 14 gal (US)
    Cooling System 2.6 gal (US)
    Engine Oil 3 gal (US)

    Hydraulic System

    Digging Force - Bucket 13946 lb
    Operating Pressure - Travel 4134 psi
    Operating Pressure - Swing 3626 psi
    Operating Pressure - Equipment 4134 psi
    Digging Force - Stick - Long 8032 lb
    Type Load Sensing Hydraulics with Variable Displacement Piston Pump
    Note Flow and pressure are not combinable. Under load, as flow rises pressure goes down.
    Pump Flow at 2,400 rpm 44 gal/min
    Digging Force - Stick - Standard 9509 lb
    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 - Standard 90.6 in
    Width - Wide 96.5 in

    Certification - Cab

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

    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)

    Dimensions - Standard Stick

    Cab Height 100 in
    Vertical Wall 117.8 in
    Boom In Reach 120.4 in
    Tail Swing with Counterweight 62.4 in
    Boom Swing - Right 36.8 in
    Track Belt/Shoe Width 17.7 in
    Maximum Reach 281.1 in
    Stick Length 71.7 in
    Maximum Blade Height 14.6 in
    Boom Swing - Left 23.8 in
    Maximum Blade Depth 16 in
    O/A Track Width 90.6 in
    Maximum Dig Height 265.2 in
    Maximum Dump Clearance 187.4 in
    Maximum Reach - Ground Level 273.6 in
    Tail Swing without Counterweight 57.1 in
    O/A Undercarriage Length 113.4 in
    Swing Bearing - Height 29.7 in
    Ground Clearance 13.8 in
    Dig Depth 161.7 in
    Note *Boom Height when stick is pinned in transport position with no attachments.
    Overall Shipping Length - with Counterweight 264 in
    Note (1) **Boom Height when stick is pinned in working position with attachments. Standard Stick offers only one pin position.
    Overall Shipping Length - without Counterweight 258.8 in
    Note (2) ***With blade positioned at the rear of the machine.
    Height - Boom Working - With Tools** 104.7 in
    Height - Boom Transport - No Tools* 95.7 in

    Dimensions - Long Stick

    Dig Depth 182.8 in
    Boom Swing - Left 23.8 in
    Maximum Dig Height 277.1 in
    Maximum Blade Height 14.6 in
    Track Belt/Shoe Width 17.7 in
    Cab Height 100 in
    Tail Swing with Counterweight 62.4 in
    O/A Undercarriage Length 113.4 in
    Maximum Dump Clearance 199.7 in
    Boom Swing - Right 36.8 in
    Maximum Blade Depth 16 in
    Ground Clearance 13.8 in
    Stick Length 92.8 in
    Maximum Reach 300.7 in
    Maximum Reach - Ground Level 293.7 in
    Boom In Reach 126.6 in
    Swing Bearing - Height 29.7 in
    O/A Track Width 90.6 in
    Tail Swing without Counterweight 57.1 in
    Vertical Wall 134 in
    Note *Boom Height when stick is pinned in transport position with no attachments.
    Note (2) ***With blade positioned at the rear of the machine.
    Note (1) **Boom Height when stick is pinned in working position with attachments. Standard Stick offers only one pin position.
    Height - Boom Transport - No Tools* 89 in
    Height - Boom Working - With Tools** 120.1 in
    Overall Shipping Length - without Counterweight 6872 mm (270.6 in)***
    Overall Shipping Length - with Counterweight 6872 mm (270.6 in)***

    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.