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308 CR Mini Hydraulic Excavator

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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Net Power69.5HP

Engine ModelCat C3.3B



Gross Power - SAE J199574.3HP


Rated Net Power - 2,200 rpm - U.S. EPA Tier 4 Final/EU Stage V - ISO 9249/EEC 80/126969.5HP

Operating Weight20077lb

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**20077lb

Minimum Operating Weight with Cab*18610lb

Dig Depth182.8in

Boom Swing - Left23.8in

Maximum Dig Height277.1in

Maximum Blade Height14.6in

Track Belt/Shoe Width17.7in

Cab Height100in

Tail Swing with Counterweight62.4in

O/A Undercarriage Length113.4in

Maximum Dump Clearance199.7in

Boom Swing - Right36.8in

Maximum Blade Depth16in

Ground Clearance13.8in

Stick Length92.8in

Maximum Reach300.7in

Maximum Reach - Ground Level293.7in

Boom In Reach126.6in

Swing Bearing - Height29.7in

O/A Track Width90.6in

Tail Swing without Counterweight57.1in

Vertical Wall134in

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*89in

Height - Boom Working - With Tools**120.1in

Overall Shipping Length - without Counterweight6872 mm (270.6 in)***

Overall Shipping Length - with Counterweight6872 mm (270.6 in)***


Width - Standard90.6in

Width - Wide96.5in

Steel Tracks with Pads752lb


Long Stick146lb

Maximum Traction Force - High Speed6250lb

Ground Pressure - Maximum Weight5.8psi

Ground Pressure - Minimum Weight5.4psi

Travel Speed - High3.2mile/h

Travel Speed - Low1.9mile/h

Maximum Traction Force - Low Speed15175lb

Gradeability - Maximum30 degrees

Fuel Tank39gal (US)

Hydraulic System29gal (US)

Hydraulic Tank14gal (US)

Cooling System2.6gal (US)

Engine Oil3gal (US)

Digging Force - Bucket13946lb

Operating Pressure - Travel4134psi

Operating Pressure - Swing3626psi

Operating Pressure - Equipment4134psi

Digging Force - Stick - Long8032lb

TypeLoad Sensing Hydraulics with Variable Displacement Piston Pump

NoteFlow and pressure are not combinable. Under load, as flow rises pressure goes down.

Pump Flow at 2,400 rpm44gal/min

Digging Force - Stick - Standard9509lb

Maximum Auxiliary Circuit - Primary - Pressure at Pump4134psi

Maximum Auxiliary Circuit - Secondary - Pressure at Pump4134psi

Maximum Auxiliary Circuit - Primary - Flow at Pump35gal/min

Maximum Auxiliary Circuit - Secondary - Flow at Pump9gal/min

Machine Swing Speed10.6r/min

Boom Swing - Right50 degrees

Boom Swing - Left60 degrees

Top GuardISO 10262:1998 (Level I)

Roll Over Protective Structure (ROPS)ISO 12117-2:2008

Tip Over Protective Structure (TOPS)ISO 12117:1997

Operator Sound Pressure (ISO 6396:2008)72dB(A)

NoteEuropean Union Directive "2000/14/EC"

Average Exterior Sound Pressure (ISO 6395:2008)99dB(A)

Cab Height100in

Vertical Wall117.8in

Boom In Reach120.4in

Tail Swing with Counterweight62.4in

Boom Swing - Right36.8in

Track Belt/Shoe Width17.7in

Maximum Reach281.1in

Stick Length71.7in

Maximum Blade Height14.6in

Boom Swing - Left23.8in

Maximum Blade Depth16in

O/A Track Width90.6in

Maximum Dig Height265.2in

Maximum Dump Clearance187.4in

Maximum Reach - Ground Level273.6in

Tail Swing without Counterweight57.1in

O/A Undercarriage Length113.4in

Swing Bearing - Height29.7in

Ground Clearance13.8in

Dig Depth161.7in

Note*Boom Height when stick is pinned in transport position with no attachments.

Overall Shipping Length - with Counterweight264in

Note (1)**Boom Height when stick is pinned in working position with attachments. Standard Stick offers only one pin position.

Overall Shipping Length - without Counterweight258.8in

Note (2)***With blade positioned at the rear of the machine.

Height - Boom Working - With Tools**104.7in

Height - Boom Transport - No Tools*95.7in

Air ConditioningThe 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.



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)


Electronic Variable Displacement Piston Pump

Load Sensing/Flow Sharing Hydraulics

Power On Demand

Hydraulic Temperature Monitoring

Certified Accumulator

HYDO Advanced Hydraulic Oil


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)


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


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


Greased and Lubricated Track

Tie Down Eyes on Track Frame

Dozer Blade

Dozer Float

Bolt-on, Reversible Wear Edge


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


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)


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


12 Volt Electrical System

60 Ampere Alternator

Circuit Breaker

900 CCA Maintenance Free Battery

Battery Disconnect

Ignition Key Stop Switch


Product Link Elite (regulations apply)

Travel Alarm

Rearview Camera

Rotating Beacon


Locks on External Enclosure Doors

Lockable Fuel Cap

Beacon Socket

Rear Reflectors


Additional Counterweight

Water Jacket Heater

Refueling Pump

Variable Angle Boom (refer to 308 CR VAB brochure for VAB specs and additional information)


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

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