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Caterpillar

308 CR Mini Hydraulic Excavator

Net Power

69.5 HP

Operating Weight

20077 lb

Dig Depth

182.8 in

Overview

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.

Photos

Videos

  • See the new Cat 7-10 Ton Mini Excavators in action.
  • Learn about the features and benefits of the new Cat 7-10 Ton Mini Excavators.
  • Easy to read monitor lets you adjust machine settings to your operating preference.
  • Easily switch from traditional travel controls with levers and pedals to joystick controls with a push of a button.
  • Hear how Savage Excavation in Colorado uses their Cat 308 CR Mini Excavator to help their business succeed.
  • Hear how James Langton of JA Langton in the United Kingdom uses the Cat 308 CR Mini Excavator to help his business succeed.
  • Learn about the recommended Daily Maintenance and Inspection for the Cat 7 to 10 Ton Mini Excavators in this quick video.
  • Learn about the Safety Features on the Cat 7 to 10 Ton Mini Excavators in this quick video.

360° View

Exterior

Model shown represents features on all Cat® Mini Excavators except where indicated.

Interior

Model shown represents features on all Cat® Mini Excavators except where indicated.

Showroom

Virtual Product Tour

Features

Specifications

  • Engine
    Spec Value
    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
    Spec Value
    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
    Spec Value
    Steel Tracks with Pads 752 lb
    Counterweight 552 lb
    Long Stick 146 lb
  • Travel System
    Spec Value
    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
    Spec Value
    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
    Spec Value
    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
    Spec Value
    Machine Swing Speed 10.6 r/min
    Boom Swing - Right 50 degrees
    Boom Swing - Left 60 degrees
  • Blade
    Spec Value
    Height 17 in
    Width - Standard 90.6 in
    Width - Wide 96.5 in
  • Certification - Cab
    Spec Value
    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
    Spec Value
    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
    Spec Value
    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
    Spec Value
    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
    Spec Value
    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.
  • Sustainability
    Spec Value
    Recyclability 96%

Standard Equipment

ENGINE

  • Cat C3.3B Diesel Engine (U.S. EPA Tier 4 Final/EU Stage V) – Electronic Engine, Turbo, Diesel Particulate Filter (DPF)
  • Automatic Engine Idle
  • Automatic Engine Shutdown
  • Automatic Swing Brake
  • Automatic Two Speed Travel
  • Fuel Water Separator with Indicator
  • Radial Seal – Double Element Air Filter
  • Extended Life Coolant, –37° C (–35° F)

HYDRAULICS

  • Electronic Variable Displacement Piston Pump
  • Load Sensing/Flow Sharing Hydraulics
  • Power On Demand
  • Hydraulic Temperature Monitoring
  • Certified Accumulator
  • HYDO Advanced Hydraulic Oil

OPERATOR ENVIRONMENT

  • Top Guard ISO 10262 1998 Level I
  • ROPS ISO 12117-2:2008
  • Stick Steer Mode
  • Travel Cruise Control
  • Control Pattern Changer
  • Adjustable Wrist Rests
  • Molded Footrests
  • Removable, Washable Floor Mat
  • Travel Pedals and Hand Levers
  • Cat Key with Passcode Option
  • HVAC with Automatic Temperature Control
  • Hydraulic Lockout Controls
  • Integrated Lower Front Window
  • Assisted Front Window Overhead Storage
  • Rear Window Emergency Exit
  • Fabric, High Back, Suspension Seat
  • Retractable Seat Belt (75 mm/3 in)
  • Coat Hook
  • Cup Holder
  • LED Interior Light
  • Literature Holder
  • Mounting Bosses for Top and Front Guards
  • 12V Power Socket
  • Radio – Bluetooth, Auxiliary, Microphone, USB (charging only)
  • Skylight
  • Signaling/Warning Horn
  • Cab and (left side) Boom Work Lights
  • Utility Space for Mobile Phone
  • Next Generation Color LCD Monitor (IP66)
    – Jog Dial Interface
    – Fuel Level and Coolant Temperature Gauges
    – Maintenance and Machine Monitoring
    – Performance and Machine Adjustments
    – Numeric Security Code
    – Multiple Languages
    – Camera Ready (IP68 & IP69K)
    – Hour Meter with Wake Up Switch

UNDERCARRIAGE

  • Greased and Lubricated Track
  • Tie Down Eyes on Track Frame
  • Dozer Blade
  • Dozer Float
  • Bolt-on, Reversible Wear Edge

BOOM, STICK AND LINKAGES

  • One Piece Boom (3400 mm/133.9 in)
  • Standard Stick (1820 mm/71.7 in)
  • Front Shovel Capable – Pin-on/Manual Coupler/Hydraulic Coupler (not available in all regions)
  • Thumb Ready (not available in all regions)

ELECTRICAL

  • 12 Volt Electrical System
  • 60 Ampere Alternator
  • Circuit Breaker
  • 900 CCA Maintenance Free Battery
  • Battery Disconnect
  • Ignition Key Stop Switch

OTHER

  • Locks on External Enclosure Doors
  • Lockable Fuel Cap
  • Beacon Socket
  • Rear Reflectors

Optional Equipment

OPERATOR ENVIRONMENT

  • Push to Start with Bluetooth® Key
  • Air Suspension Heated Seat
  • Rain Visor
  • Next Generation Advanced Monitor (below are all included with Next Generation Advanced Monitor option)
    – Touch Screen
    – Site Reference System
    – High Definition Camera Capable (IP68 & IP69K)
    – Numeric Security Code

UNDERCARRIAGE

  • Wide Dozer Blade
  • Steel Tracks (450 mm/17.7 in wide)
  • Wide Steel Tracks (600 mm/23.6 in)
  • Steel Track with Rubber Pads
  • Track Guides

BOOM, STICK AND LINKAGES

  • Long Stick (2360 mm/92.9 in)
  • Attachments including Buckets, Augers and Hammers
  • 2nd Auxiliary Hydraulic Lines
  • Boom Lowering Check Valve
  • Stick Lowering Check Valve
  • Certified Lifting Eye

ELECTRICAL

  • Product Link™ Elite (regulations apply)
  • Travel Alarm
  • Rearview Camera
  • Rotating Beacon

GUARDING

  • Mesh Front Guard ISO 10262 1998 Level I
  • Heavy Duty Front Guard ISO 10262 1998 Level II
  • Overhead Cab Guard ISO 10262 1998 Level II
  • Polycarbonate Front Window EN356 P5A
  • Track Guards

OTHER

  • Additional Counterweight
  • Water Jacket Heater
  • Refueling Pump
  • Variable Angle Boom (refer to 308 CR VAB brochure for VAB specs and additional information)