Caterpillar

308 CR VAB Mini Hydraulic Excavator

Name: 308 CR VAB Mini Hydraulic Excavator
Brand: Caterpillar

Net Power

69.5 hp

51.8 kW

Operating Weight

20385 lb

9245 kg

Dig Depth

150.2 in

3815 mm

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.

Media

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.

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.

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Features

ALL DAY COMFORT

EASY TO OPERATE

STICK STEER TRAVEL MODE

BIG PERFORMANCE IN A MINI DESIGN

SAFETY ON THE JOB SITE

SIMPLE SERVICE FOR LESS DOWNTIME

LOWER OPERATING COSTS

UNMATCHED DEALER SUPPORT

SUSTAINABILITY

Specifications

US Metric

Engine

Spec	Value
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

Weights

Spec	Value
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

Weight Increase from Minimum Configuration

Spec	Value
Counterweight	552 lb 250 kg
Steel Tracks with Pads	752 lb 341 kg

Travel System

Spec	Value
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

Service Refill Capacities

Spec	Value
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

Hydraulic System

Spec	Value
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

Swing System

Spec	Value
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

Blade

Spec	Value
Height	17 in 431 mm
Width – Wide	96.5 in 2450 mm
Width – Standard	90.6 in 2300 mm

Certification - Cab and Canopy

Spec	Value
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)

Sound

Spec	Value
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 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. 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

Spec	Value
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

Dimensions - VAB Out

Spec	Value
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

Sustainability

Spec	Value
Recyclability	96% 96%

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

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