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.
Net Power 69.5 hp
Operating Weight 18493 lb
Dig Depth 182.8 in
Engine Model Cat C3.3B
Bore 3.7in
Displacement 203in³
Engine Model Cat C3.3B
Gross Power - SAE J1995 74.3hp
Net Power 69.5hp
Rated Net Power - 2,200 rpm - U.S. EPA Tier 4 Final/EU Stage V - ISO 9249/EEC 80/1269 69.5hp
Stroke 4.7in
Maximum Operating Weight with Cab** 18493lb
Minimum Operating Weight with Cab* 16542lb
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.
Operating Weight 18493lb
Boom In Reach 126.6in
Boom Swing - Left 23.8in
Boom Swing - Right 36.8in
Cab Height 100in
Dig Depth 182.8in
Ground Clearance 13.8in
Height - Boom Transport - No Tools* 89in
Height - Boom Working - With Tools** 120.1in
Maximum Blade Depth 16in
Maximum Blade Height 14.6in
Maximum Dig Height 277.1in
Maximum Dump Clearance 199.7in
Maximum Reach 300.7in
Maximum Reach - Ground Level 293.7in
Note *Boom Height when stick is pinned in transport position with no attachments.
Note (1) **Boom Height when stick is pinned in working position with attachments. Standard Stick offers only one pin position.
Note (2) ***With blade positioned at the rear of the machine.
O/A Track Width 90.6in
O/A Undercarriage Length 113.4in
Overall Shipping Length - with Counterweight 6872 mm (270.6 in)***
Overall Shipping Length - without Counterweight 6872 mm (270.6 in)***
Stick Length 92.8in
Swing Bearing - Height 29.7in
Tail Swing with Counterweight 62.4in
Tail Swing without Counterweight 57.1in
Track Belt/Shoe Width 17.7in
Vertical Wall 134in
Height 17in
Width - Standard 90.6in
Width - Wide 96.5in
Counterweight 552lb
Long Stick 146lb
Steel Tracks with Pads 752lb
Gradeability - Maximum 30 degrees
Ground Pressure - Maximum Weight 5.5psi
Ground Pressure - Minimum Weight 4.9psi
Maximum Traction Force - High Speed 6250lb
Maximum Traction Force - Low Speed 15175lb
Travel Speed - High 3.2mile/h
Travel Speed - Low 1.9mile/h
Cooling System 2.6gal (US)
Engine Oil 3gal (US)
Fuel Tank 39gal (US)
Hydraulic System 29gal (US)
Hydraulic Tank 14gal (US)
Digging Force - Bucket 13946lb
Digging Force - Stick - Long 8032lb
Digging Force - Stick - Standard 9509lb
Maximum Auxiliary Circuit - Primary - Flow at Pump 35gal/min
Maximum Auxiliary Circuit - Primary - Pressure at Pump 4134psi
Maximum Auxiliary Circuit - Secondary - Flow at Pump 9gal/min
Maximum Auxiliary Circuit - Secondary - Pressure at Pump 4134psi
Note Flow and pressure are not combinable. Under load, as flow rises pressure goes down.
Operating Pressure - Equipment 4134psi
Operating Pressure - Swing 3626psi
Operating Pressure - Travel 4134psi
Pump Flow at 2,400 rpm 44gal/min
Type Load Sensing Hydraulics with Variable Displacement Piston Pump
Boom Swing - Left 60 degrees
Boom Swing - Right 50 degrees
Machine Swing Speed 10.6r/min
Roll Over Protective Structure (ROPS) ISO 12117-2:2008
Top Guard ISO 10262:1998 (Level I)
Average Exterior Sound Pressure (ISO 6395:2008) 99dB(A)
Note European Union Directive "2000/14/EC"
Operator Sound Pressure (ISO 6396:2008) 72dB(A)
Boom In Reach 120.4in
Boom Swing - Left 23.8in
Boom Swing - Right 36.8in
Cab Height 100in
Dig Depth 161.7in
Ground Clearance 13.8in
Height - Boom Transport - No Tools* 95.7in
Height - Boom Working - With Tools** 104.7in
Maximum Blade Depth 16in
Maximum Blade Height 14.6in
Maximum Dig Height 265.2in
Maximum Dump Clearance 187.4in
Maximum Reach 281.1in
Maximum Reach - Ground Level 273.6in
Note *Boom Height when stick is pinned in transport position with no attachments.
Note (1) **Boom Height when stick is pinned in working position with attachments. Standard Stick offers only one pin position.
Note (2) ***With blade positioned at the rear of the machine.
O/A Track Width 90.6in
O/A Undercarriage Length 113.4in
Overall Shipping Length - with Counterweight 264in
Overall Shipping Length - without Counterweight 258.8in
Stick Length 71.7in
Swing Bearing - Height 29.7in
Tail Swing with Counterweight 62.4in
Tail Swing without Counterweight 57.1in
Track Belt/Shoe Width 17.7in
Vertical Wall 117.8in
Recyclability 96%
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.
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)
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
Greased and Lubricated Track
Tie Down Eyes on Track Frame
Dozer Blade
Dozer Float
Bolt-on, Reversible Wear Edge
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)
12 Volt Electrical System
60 Ampere Alternator
Circuit Breaker
900 CCA Maintenance Free Battery
Battery Disconnect
Ignition Key Stop Switch
Locks on External Enclosure Doors
Lockable Fuel Cap
Beacon Socket
Rear Reflectors
Product Link Basic
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
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
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
Product Link™ Elite (regulations apply)
Travel Alarm
Rearview Camera
Rotating Beacon
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
Additional Counterweight
Water Jacket Heater
Refueling Pump
Variable Angle Boom (refer to 308 CR VAB brochure for VAB specs and additional information)
Ease of Use Indicate
Ease of Use E-Fence
Cat Grade Advanced 2D
Cat Grade 3D
Product Link Elite (regulations apply)
