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Piscataway Campus 732-885-5555
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Piscataway Campus 732-885-5555
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308 CR Mini Hydraulic Excavator
Exterior View
Interior View
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308 CR Mini Hydraulic Excavator

Net Power69.5 hp
Engine ModelCat C3.3B
Stroke4.7 in
Bore3.7 in
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Learn more about our 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.

Net Power
69.5hp
Engine Model
Cat C3.3B
Stroke
4.7in
Bore
3.7in
Gross Power - SAE J1995:2014
74.3hp
Displacement
203in³
Rated Net Power - 2,200 rpm - U.S. EPA Tier 4 Final/EU Stage V - ISO 9249/EEC 80/1269
69.5hp
Operating Weight
18493lb
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**
18493lb
Minimum Operating Weight with Cab*
16542lb
Dig Depth
182.8in
Boom Swing - Left
23.8in
Maximum Dig Height
277.1in
Maximum Blade Height
14.6in
Track Belt/Shoe Width
17.7in
Cab Height
100in
Tail Swing with Counterweight
62.4in
O/A Undercarriage Length
113.4in
Maximum Dump Clearance
199.7in
Boom Swing - Right
36.8in
Maximum Blade Depth
16in
Ground Clearance
13.8in
Stick Length
92.8in
Maximum Reach
300.7in
Maximum Reach - Ground Level
293.7in
Boom In Reach
126.6in
Swing Bearing - Height
29.7in
O/A Track Width
90.6in
Tail Swing without Counterweight
57.1in
Vertical Wall
134in
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 Counterweight
6872 mm (270.6 in)***
Overall Shipping Length - with Counterweight
6872 mm (270.6 in)***
Height
17in
Width - Standard
90.6in
Width - Wide
96.5in
Steel Tracks with Pads
752lb
Counterweight
552lb
Long Stick
146lb
Maximum Traction Force - High Speed
6250lb
Ground Pressure - Maximum Weight
5.5psi
Ground Pressure - Minimum Weight
4.9psi
Travel Speed - High
3.2mile/h
Travel Speed - Low
1.9mile/h
Maximum Traction Force - Low Speed
15175lb
Gradeability - Maximum
30 degrees
Fuel Tank
39gal (US)
Hydraulic System
29gal (US)
Hydraulic Tank
14gal (US)
Cooling System
2.6gal (US)
Engine Oil
3gal (US)
Digging Force - Bucket
13946lb
Operating Pressure - Travel
4134psi
Operating Pressure - Swing
3626psi
Operating Pressure - Equipment
4134psi
Digging Force - Stick - Long
8032lb
Type
Load Sensing Hydraulics with Variable Displacement Piston Pump
Note
Flow and pressure are not combinable. Under load, as flow rises pressure goes down.
Pump Flow at 2,400 rpm
44gpm
Digging Force - Stick - Standard
9509lb
Maximum Auxiliary Circuit - Primary - Pressure at Pump
4134psi
Maximum Auxiliary Circuit - Secondary - Pressure at Pump
4134psi
Maximum Auxiliary Circuit - Primary - Flow at Pump
35gpm
Maximum Auxiliary Circuit - Secondary - Flow at Pump
9gpm
Machine Swing Speed
10.6r/min
Boom Swing - Right
50 degrees
Boom Swing - Left
60 degrees
Top Guard
ISO 10262:1998 (Level I)
Roll Over Protective Structure (ROPS)
ISO 12117-2:2008
Operator Sound Pressure (ISO 6396:2008)
72dB(A)
Note
European Union Directive "2000/14/EC"
Average Exterior Sound Pressure (ISO 6395:2008)
99dB(A)
Cab Height
100in
Vertical Wall
117.8in
Boom In Reach
120.4in
Tail Swing with Counterweight
62.4in
Boom Swing - Right
36.8in
Track Belt/Shoe Width
17.7in
Maximum Reach
281.1in
Stick Length
71.7in
Maximum Blade Height
14.6in
Boom Swing - Left
23.8in
Maximum Blade Depth
16in
O/A Track Width
90.6in
Maximum Dig Height
265.2in
Maximum Dump Clearance
187.4in
Maximum Reach - Ground Level
273.6in
Tail Swing without Counterweight
57.1in
O/A Undercarriage Length
113.4in
Swing Bearing - Height
29.7in
Ground Clearance
13.8in
Dig Depth
161.7in
Note
*Boom Height when stick is pinned in transport position with no attachments.
Overall Shipping Length - with Counterweight
264in
Note (1)
**Boom Height when stick is pinned in working position with attachments. Standard Stick offers only one pin position.
Overall Shipping Length - without Counterweight
258.8in
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 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.
Recyclability
96%
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)

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