308 CR VAB

< Back

View Product Downloads
Yes, I would like to receive future marketing communications (such as email) from Caterpillar Inc., its affiliates and subsidiaries worldwide and the Caterpillar dealer network. Regardless of whether you decide to receive these marketing communications, Caterpillar will continue to send service/transactional messages, including those that have to do with any accounts that you may have with us.

Overview

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.

Engine

Units:
Engine Model Cat C3.3B Cat C3.3B Less
Net Power 70.3 HP 52.4 kW Less
Displacement 203.0 in³ 3.33 l Less
Bore 3.7 in 94.0 mm Less
Gross Power - ISO 14396 74.3 HP 55.4 kW Less
Rated Net Power - 2,200 rpm - EU Stage V - ISO 9249/EEC 80/1269 71.5 HP 53.3 kW Less
Rated Net Power - 2,200 rpm - U.S. EPA Tier 4 Final - ISO 9249/EEC 80/1269 70.3 HP 52.4 kW Less
Stroke 4.7 in 120.0 mm Less

Weights

Operating Weight 20906.0 lb 9483.0 kg Less
Note *Maximum Weight is based on steel tracks with rubber pads, counterweight, operator, full fuel tank, standard stick, blade and no bucket. *Maximum Weight is based on steel tracks with rubber pads, counterweight, operator, full fuel tank, standard stick, blade and no bucket. Less
Note (1) *Minimum Weight is based on rubber tracks, no counterweight, operator, full fuel tank, standard stick, blade and no bucket. *Minimum Weight is based on rubber tracks, no counterweight, operator, full fuel tank, standard stick, blade and no bucket. Less
Maximum Operating Weight with Cab** 20678.0 lb 9380.0 kg Less
Minimum Operating Weight with Cab* 17960.0 lb 8146.0 kg Less
Maximum Operating Weight with Cab* 20906.0 lb 9483.0 kg Less
Note (2) **Maximum Weight is based on steel tracks with rubber pads, counterweight, operator, full fuel tank, long stick, blade and no bucket. **Maximum Weight is based on steel tracks with rubber pads, counterweight, operator, full fuel tank, long stick, blade and no bucket. Less

Blade

Height 17.0 in 431.0 mm Less
Width - Wide 96.5 in 2450.0 mm Less
Width - Standard 90.6 in 2300.0 mm Less

Dimensions - Long Stick

Maximum Dig Height 277.1 in 7038.0 mm Less
Maximum Reach 300.7 in 7637.0 mm Less
Track Belt/Shoe Width 17.7 in 450.0 mm Less
Tail Swing without Counterweight 57.1 in 1450.0 mm Less
Dig Depth 182.8 in 4644.0 mm Less
Ground Clearance 13.7 in 349.0 mm Less
O/A Shipping Length 262.0 in 6656.0 mm Less
Cab Height 99.2 in 2520.0 mm Less
Vertical Wall 134.1 in 3405.0 mm Less
Stick Length 92.8 in 2358.0 mm Less
Maximum Blade Depth 16.1 in 408.0 mm Less
Maximum Reach - Ground Level 293.7 in 7461.0 mm Less
O/A Track Width 90.6 in 2300.0 mm Less
Transport Height 99.3 in 2522.0 mm Less
Boom Swing - Left 20.0 in 503.0 mm Less
O/A Undercarriage Length 113.9 in 2892.0 mm Less
Boom In Reach 126.6 in 3215.0 mm Less
Tail Swing with Counterweight 64.8 in 1645.0 mm Less
Boom Swing - Right 38.0 in 963.0 mm Less
Maximum Blade Height 14.5 in 369.0 mm Less
Swing Bearing - Height 28.9 in 735.0 mm Less
Maximum Dump Clearance 199.6 in 5071.0 mm Less

Dimensions - VAB In

Tail Swing with Counterweight 64.8 in 1645.0 mm Less
Maximum Blade Height 14.5 in 369.0 mm Less
Track Belt/Shoe Width 17.7 in 450.0 mm Less
Maximum Dump Clearance 143.7 in 3649.0 mm Less
Vertical Wall 133.4 in 3388.0 mm Less
Boom in Reach 112.3 in 2853.0 mm Less
Ground Clearance 13.7 in 349.0 mm Less
Swing Bearing Height 28.9 in 735.0 mm Less
Boom Swing Right 38.0 in 963.0 mm Less
Overall Track Width 90.6 in 2300.0 mm Less
Dig Depth 154.5 in 3925.0 mm Less
Overall Shipping Length 235.0 in 5969.0 mm Less
Transport Height 105.2 in 2673.0 mm Less
Cab Height 99.2 in 2520.0 mm Less
Overall Undercarriage Length 113.9 in 2892.0 mm Less
Maximum Reach 260.3 in 6612.0 mm Less
Tail Swing without Counterweight 57.1 in 1450.0 mm Less
Maximum Reach at Ground Level 252.0 in 6402.0 mm Less
Stick Length 71.8 in 1823.0 mm Less
Maximum Blade Depth 16.1 in 408.0 mm Less
Boom Swing Left 20.0 in 503.0 mm Less
Maximum Dig Height 216.6 in 5500.0 mm Less

Dimensions - VAB Out

Dig Depth 136.3 in 3462.0 mm Less
Overall Shipping Length 282.7 in 7180.0 mm Less
Stick Length 71.8 in 1823.0 mm Less
Track Belt/Shoe Width 17.7 in 450.0 mm Less
Swing Bearing Height 28.9 in 735.0 mm Less
Maximum Blade Depth 16.1 in 408.0 mm Less
Maximum Reach at Ground Level 305.1 in 7750.0 mm Less
Transport Height 94.5 in 2399.0 mm Less
Boom in Reach 117.9 in 2995.0 mm Less
Overall Undercarriage Length 113.9 in 2892.0 mm Less
Maximum Reach 311.8 in 7919.0 mm Less
Maximum Dump Clearance 251.8 in 6396.0 mm Less
Ground Clearance 13.7 in 349.0 mm Less
Vertical Wall 138.5 in 3518.0 mm Less
Tail Swing with Counterweight 64.8 in 1645.0 mm Less
Tail Swing without Counterweight 57.1 in 1450.0 mm Less
Boom Swing Left 20.0 in 503.0 mm Less
Maximum Blade Height 14.5 in 369.0 mm Less
Cab Height 99.2 in 2520.0 mm Less
Maximum Dig Height 321.9 in 8177.0 mm Less
Boom Swing Right 38.0 in 963.0 mm Less
Overall Track Width 90.6 in 2300.0 mm Less

Dimensions - Standard Stick

Boom In Reach 120.4 in 3059.0 mm Less
Tail Swing with Counterweight 64.8 in 1645.0 mm Less
Maximum Reach - Ground Level 273.6 in 6949.0 mm Less
Swing Bearing - Height 28.9 in 735.0 mm Less
Track Belt/Shoe Width 17.7 in 450.0 mm Less
Ground Clearance 13.7 in 349.0 mm Less
Maximum Dump Clearance 187.4 in 4759.0 mm Less
Transport Height 97.9 in 2487.0 mm Less
Boom Swing - Left 20.0 in 503.0 mm Less
Maximum Blade Depth 16.1 in 408.0 mm Less
Tail Swing without Counterweight 57.1 in 1450.0 mm Less
Cab Height 99.2 in 2520.0 mm Less
Maximum Blade Height 14.5 in 369.0 mm Less
Maximum Dig Height 265.2 in 6735.0 mm Less
Maximum Reach 281.1 in 7141.0 mm Less
O/A Track Width 90.6 in 2300.0 mm Less
O/A Undercarriage Length 113.9 in 2892.0 mm Less
Vertical Wall 117.8 in 2992.0 mm Less
O/A Shipping Length 258.7 in 6571.0 mm Less
Stick Length 71.8 in 1823.0 mm Less
Boom Swing - Right 38.0 in 963.0 mm Less
Dig Depth 161.8 in 4109.0 mm Less

Hydraulic System

Auxiliary Circuit - Secondary - Pressure 4134.0 psi 285.0 bar Less
Auxiliary Circuit - Primary - Pressure 4134.0 psi 285.0 bar Less
Digging Force - Bucket 13946.0 lb 62.0 kN Less
Operating Pressure - Equipment 4134.0 psi 285.0 bar Less
Auxiliary Circuit - Primary - Flow 35.0 gal/min 131.0 l/min Less
Pump Flow at 2,400 rpm 44.0 gal/min 167.0 l/min Less
Operating Pressure - Travel 4134.0 psi 285.0 bar Less
Auxiliary Circuit - Secondary - Flow 9.0 gal/min 33.0 l/min Less
Digging Force - Stick - Long 8032.0 lb 35.7 kN Less
Digging Force - Stick - Standard 9205.0 lb 40.9 kN Less
Type Load Sensing Hydraulics with Variable Displacement Piston Pump Load Sensing Hydraulics with Variable Displacement Piston Pump Less
Operating Pressure - Swing 3626.0 psi 250.0 bar Less

Certification - Cab

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

Travel System

Maximum Traction Force - High Speed 6250.0 lb 27.8 kN Less
Travel Speed - Low 1.9 mile/h 3.1 km/h Less
Ground Pressure - Maximum Weight 6.0 psi 41.16 kPa Less
Travel Speed - High 3.2 mile/h 5.1 km/h Less
Gradeability - Maximum 30 degrees 30 degrees Less
Ground Pressure - Minimum Weight 5.0 psi 35.36 kPa Less
Maximum Traction Force - Low Speed 15175.0 lb 67.5 kN Less

Sound

Operator Sound Pressure (ISO 6396:2008) 72.0 dB(A) 72.0 dB(A) Less
Note European Union Directive “2000/14/EC” European Union Directive “2000/14/EC” Less
Average Exterior Sound Pressure (ISO 6395:2008) 99.0 dB(A) 99.0 dB(A) Less

Weight Increase from Minimum Configuration

Counterweight 552.0 lb 250.0 kg Less
Steel Tracks with Pads 728.0 lb 330.0 kg Less
Long Stick 146.0 lb 66.0 kg Less

Service Refill Capacities

Engine Oil 3.0 gal (US) 11.2 l Less
Cooling System 2.6 gal (US) 10.0 l Less
Hydraulic System 28.0 gal (US) 107.0 l Less
Hydraulic Tank 14.0 gal (US) 53.0 l Less
Fuel Tank 39.0 gal (US) 147.0 l Less

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. 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. Less

Swing System

Machine Swing Speed 10.6 r/min 10.6 r/min Less

ALL DAY COMFORT

        
  • A sealed and pressurized cab is equipped with an improved air conditioning system, adjustable wrist rests and a suspension seat to help keep you working comfortably all day long.

EASY TO OPERATE

  • Controls are easy to use and the intuitive Next Generation Monitor provides customizable machine operator preferences and easy to read machine information.

STICK STEER TRAVEL MODE

  • Moving around the job site is even easier with the Cat Stick Steer option. Easily switch from traditional travel controls with levers and pedals to joystick controls with a push of a button. The benefit of less effort and improved control is in your hands!

BIG PERFORMANCE IN A MINI DESIGN

        
  • Increased lifting, swinging, travel and multi-functioning performance helps you get the job done more efficiently, and dig-to-blade allows for easy clean up.

SAFETY ON THE JOB SITE

  • Your safety is our top priority. The Cat Mini Excavator is designed to help keep you safe on the job. A back-up camera, courtesy work lights and a fluorescent retractable seat belt are just a few of the safety features we’ve built into the machine.

SIMPLE SERVICE FOR LESS DOWNTIME

  • Maintenance is quick and easy on the Cat Mini Excavator. Routine check points are easy to access at ground level with grouped service points and robust service panels.

LOWER OPERATING COSTS

  • Equipped with features such as auto idle, auto engine shutdown, and efficient hydraulics with a variable displacement pump, the Cat Mini Excavator was designed with reducing your operating costs in mind.

UNMATCHED DEALER SUPPORT

  • Your Cat dealer is here to help you reach your business goals. From providing equipment solutions to operator training to service needs and beyond, your Cat dealer is ready to help.

308 CR VAB Standard Equipment

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

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

OPERATOR ENVIRONMENT
  • Rear Window Emergency Exit
  • Molded Footrests
  • Hydraulic Lockout Controls
  • LED Interior Light
  • Travel Cruise Control
  • 12V Power Socket
  • Removable, Washable Floor Mat
  • Assisted Front Window Overhead Storage
  • Operator Sound Pressure 72 dB(A) ISO 6396:2008
  • Top Guard – ISO 10262:1998 (Level II)
  • Integrated Lower Front Window
  • Sealed and Pressurized Cab
  • Cat Key with Passcode Option
  • Literature Holder
  • Mounting Bosses for Top and Front Guards
  • ROPS – ISO 12117-2:2008
  • HVAC with Automatic Temperature Control
  • Stick Steer Mode
  • Fabric, High Back, Suspension Seat
  • Color LCD Monitor
    – Fuel Level and Coolant Temperature Gauges
    – Maintenance and Machine Monitoring
    – Performance and Machine Adjustments
    – Numeric Security Code
    – Multiple Languages
    – Camera Ready
    – Hour Meter with Wake Up Switch
    – Jog Dial Control Interface
  • Radio – Bluetooth®, USB, Auxiliary, Microphone
  • Cup Holder
  • Retractable Seat Belt (75 mm/3 in)
  • Adjustable Wrist Rests
  • Skylight
  • TOPS – ISO 12117:1997
  • Travel Pedals and Hand Levers
  • Coat Hook
  • Control Pattern Changer

UNDERCARRIAGE
  • Dozer Blade
  • Greased and Lubricated Track
  • Hydraulic Track Adjusters
  • Tie Down Eyes on Track Frame
  • Dozer Float
  • Bolt-on, Reversible Wear Edge
  • Rubber Tracks

BOOM, STICK AND LINKAGES
  • Variable Angle Boom
  • Standard Stick (1823 mm/71.8 in)
  • Front Shovel Capable (Pin-On/Manual Coupler/Hydraulic Coupler – not available in all regions)
  • Thumb Ready (not available in all regions)
  • Certified Lifting Eye (not available in all regions)

ELECTRICAL
  • 12 Volt Electrical System
  • 90 Ampere Alternator
  • 850 CCA Maintenance Free Battery
  • Circuit Breaker
  • Ignition Key Stop Switch
  • Signaling/Warning Horn
  • Product Link™ Elite Lite (regulations apply)

308 CR VAB Optional Equipment

OPERATOR ENVIRONMENT
  • Rain Visor
  • Air Suspension Heated Seat

ELECTRICAL
  • Rotating Beacon
  • Rearview Camera

OTHER
  • 2nd Auxiliary Hydraulic Lines
  • Wide Dozer Blade
  • Wide Steel Tracks (600 mm/23.6 in)
  • Steel Track with Rubber Pads
  • Attachments including Buckets, Augers and Hammers
  • Steel Tracks (450 mm/17.7 in wide)
  • Boom and Stick Hose Burst Check Valves
  • Bucket Linkage with Lift Eye
  • Track Guides
  • Water Jacket Heater
  • Refueling Pump
  • Cab Guarding
  • Travel Alarm (standard in some regions)