Mini Excavators 308 CR VAB

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Key Specs

Net Power
69.5 HP
51.8 kW
Operating Weight
20385 lb
9245 kg
Dig Depth
150.2 in
3815 mm

Overview

Mini Excavators Inspired by Our Customers

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.

Benefits

4 Industry First Features

Cat Exclusives in a Mini Excavator

Up to 10% Lower Total Ownership Costs

with improved fuel efficiency and longer service intervals

Up to 20% More Performance

with customizable operator settings and improvements in lift, swing, travel and multifunction

Product Specifications for 308 CR VAB

Net Power 69.5 HP 51.8 kW
Displacement 203 in³ 3.33 l
Note Net power advertised is the power available at the flywheel when the engine is equipped with air cleaner, exhaust system and fan. 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 94 mm
Gross Power - SAE J1995 74.3 HP 55.4 kW
Stroke 4.7 in 120 mm
Net Power - 2,200 rpm - ISO 9249:2007, 80/1269/EEC 69.5 HP 51.8 kW
Engine Model - U.S. EPA Tier 4 Final/EU Stage V Cat® C3.3B Cat® C3.3B
Operating Weight 20385 lb 9245 kg
Note (1) *Minimum Weight is based on rubber tracks, no counterweight, operator, full fuel tank, blade, and no bucket. *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 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 9245 kg
Minimum Operating Weight with Standard Stick* 19084 lb 8655 kg
Counterweight 552 lb 250 kg
Steel Tracks with Pads 752 lb 341 kg
Maximum Traction Force - High Speed 6250 lbf 27.8 kN
Travel Speed - Low 1.9 mile/h 3.1 km/h
Ground Pressure - Maximum Weight 5.9 psi 40.6 kPa
Travel Speed - High 3.2 mile/h 5.1 km/h
Gradeability - Maximum 30 degrees 30 degrees
Ground Pressure - Minimum Weight 5.5 psi 37.9 kPa
Maximum Traction Force - Low Speed 15175 lbf 67.5 kN
Engine Oil 3 gal (US) 11.2 l
Cooling System 2.6 gal (US) 10 l
Hydraulic System 29 gal (US) 110 l
Hydraulic Tank 14 gal (US) 53 l
Fuel Tank 39 gal (US) 147 l
Digging Force - Bucket 13946 lbf 62 kN
Operating Pressure - Equipment 4134 psi 285 bar
Pump Flow at 2,400 rpm 44 gal/min 167 l/min
Operating Pressure - Travel 4134 psi 285 bar
Digging Force - Stick - Standard 9509 lbf 42.3 kN
Type Load Sensing Hydraulics with Variable Displacement Piston Pump Load Sensing Hydraulics with Variable Displacement Piston Pump
Operating Pressure - Swing 3626 psi 250 bar
Note Flow and pressure are not combinable. Under load, as flow rises pressure goes down. Flow and pressure are not combinable. Under load, as flow rises pressure goes down.
Maximum Auxiliary Circuit - Primary - Pressure at Pump 4134 psi 285 bar
Maximum Auxiliary Circuit - Secondary - Pressure at Pump 4134 psi 285 bar
Maximum Auxiliary Circuit - Primary - Flow at Pump 35 gal/min 131 l/min
Maximum Auxiliary Circuit - Secondary - Flow at Pump 9 gal/min 33 l/min
Machine Swing Speed 10.6 r/min 10.6 r/min
Boom Swing - Right 50 degrees 50 degrees
Boom Swing - Left 60 degrees 60 degrees
Height 17 in 431 mm
Width - Wide 96.5 in 2450 mm
Width - Standard 90.6 in 2300 mm
Roll Over Protective Structure (ROPS) ISO 12117-2:2008 ISO 12117-2:2008
Tip Over Protective Structure (TOPS) ISO 12117:1997 ISO 12117:1997
Top Guard ISO 10262:1998 (Level II) ISO 10262:1998 (Level II)
Operator Sound Pressure (ISO 6396:2008) 72 dB(A) 72 dB(A)
Note European Union Directive "2000/14/EC" European Union Directive "2000/14/EC"
Average Exterior Sound Pressure (ISO 6395:2008) 99 dB(A) 99 dB(A)
Air Conditioning The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a (Global Warming Potential = 1430). The system contains 1 kg of refrigerant which has a CO2 equivalent of 1.430 metric tonnes. The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a (Global Warming Potential = 1430). The system contains 1 kg of refrigerant which has a CO2 equivalent of 1.430 metric tonnes.
Dig Depth 150.2 in 3815 mm
Tail Swing with Counterweight 62.4 in 1585 mm
Maximum Blade Height 14.6 in 370 mm
Track Belt/Shoe Width 17.7 in 450 mm
Maximum Dump Clearance 135.8 in 3450 mm
Vertical Wall 99.2 in 2520 mm
Boom in Reach 122.8 in 3120 mm
Ground Clearance 13.8 in 350 mm
Swing Bearing Height 29.8 in 756 mm
Boom Swing Right 37 in 935 mm
Overall Track Width 90.6 in 2300 mm
Overall Shipping Length 253.9 in 6450 mm
Transport Height 97.4 in 2475 mm
Cab Height 100 in 2541 mm
Overall Undercarriage Length 113.4 in 2880 mm
Maximum Reach 256.5 in 6515 mm
Tail Swing without Counterweight 57.1 in 1450 mm
Maximum Reach at Ground Level 248 in 6300 mm
Stick Length 71.7 in 1820 mm
Maximum Blade Depth 16 in 407 mm
Boom Swing Left 24 in 605 mm
Maximum Dig Height 205.5 in 5220 mm
Dig Depth 136.2 in 3460 mm
Overall Shipping Length 253.9 in 6450 mm
Stick Length 71.7 in 1820 mm
Track Belt/Shoe Width 17.7 in 450 mm
Swing Bearing Height 29.8 in 756 mm
Maximum Blade Depth 16 in 407 mm
Maximum Reach at Ground Level 303.7 in 7715 mm
Transport Height 97.4 in 2475 mm
Boom in Reach 106.7 in 2710 mm
Overall Undercarriage Length 113.4 in 2880 mm
Maximum Reach 310.4 in 7885 mm
Maximum Dump Clearance 247.4 in 6285 mm
Ground Clearance 13.8 in 350 mm
Vertical Wall 146.7 in 3725 mm
Tail Swing with Counterweight 62.4 in 1585 mm
Tail Swing without Counterweight 57.1 in 1450 mm
Boom Swing Left 24 in 605 mm
Maximum Blade Height 14.6 in 370 mm
Cab Height 100 in 2541 mm
Maximum Dig Height 322 in 8180 mm
Boom Swing Right 37 in 935 mm
Overall Track Width 90.6 in 2300 mm

308 CR VAB Standard Equipment

ENGINE

  • Cat C3.3 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)
  • Ecology Drain

HYDRAULICS

  • Smart Tech Electronic Pump
  • 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
  • Sealed and Pressurized Cab
  • 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
  • Hydraulic Track Adjusters
  • Tie Down Eyes on Track Frame
  • Dozer Blade
  • Dozer Float
  • Bolt-on, Reversible Wear Edge

BOOM, STICK AND LINKAGES

  • Variable Angle Boom
  • 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

308 CR VAB 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

  • 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

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