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308E2 CR Mini Hydraulic Excavator with Swing Boom

308E2 CR Mini Hydraulic Excavator with Swing Boom

At a Glance

Engine Model
Cat® C3.3B
Net Power
65 HP
Operating Weight
18519 lb
Operating Weight - With Cab
18519 lb
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The Cat® 308E2 CR Mini Hydraulic Excavator delivers high performance, durability and versatility in a compact design to help you work in a variety of applications.


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Engine Model Cat® C3.3B
Net Power 65HP
Emissions Meets U.S. EPA Tier 4 Final and EU Stage IIIB emission standards.
Stroke 4.7in
Rated Net Power - 2,400 rpm - ISO 9249/EEC 80/1269 65HP
Net Power - ISO 9249 65HP
Gross Power - ISO 14396 66.6HP
Displacement 203.2in³
Bore 3.7in


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Operating Weight 18519lb
Operating Weight - With Cab 18519lb
Note (2) Weight varies depending on machine configuration.
Note (1) Weight with rubber tracks, bucket, operator (75 kg/165 lb), full fuel and auxiliary lines.

Swing System

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Machine Swing Speed 11r/min
Boom Swing - Right 50°
Boom Swing - Left 60°
Note Automatic swing break, spring applied, hydraulic release.


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Width 91.3in
Height 17.7in
Dig Depth 14.2in
Lift Height 15in

Service Refill Capacities

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Cooling System 3.7gal (US)
Engine Oil 3gal (US)
Hydraulic Tank 21.7gal (US)
Fuel Tank 33gal (US)
Hydraulic System 24.8gal (US)

Travel System

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Ground Pressure 5.26psi
Note (3) Straight line travel when tracking and operating the front linkage simultaneously.
Note (2) Drive modules are integrated into the roller frame for total protection.
Note (1) Each track is driven by one independent 2-speed motor.
Travel Speed - Low 1.74mile/h
Travel Speed - High 3.17mile/h
Maximum Traction Force - Low Speed 14500lb
Maximum Traction Force - High Speed 8408lb
Gradeability - Maximum 30°

Hydraulic System

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Pump Flow at 2,000 rpm 39.6gal/min
Operating Pressure - Travel 4061psi
Note Load sensing hydraulics with variable displacement piston pump.
Operating Pressure - Swing 3481psi
Operating Pressure - Equipment 4061psi
Digging Force - Stick - Standard 9015lb
Digging Force - Stick - Long 7891lb
Digging Force - Bucket 13534lb
Auxiliary Circuit - Secondary (280 bar/4,061 psi) 16.9gal/min
Auxiliary Circuit - Primary (280 bar/4,061 psi) 33.8gal/min

Air Conditioning System

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Air Conditioning The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a (Global Warming Potential = 1430). The system contains 1.3 kg (2.9 lb) of refrigerant which has a CO2 equivalent of 1.9 metric tonnes (4,189 lb).


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Dynamic Operator Sound Pressure 70 dB(A) ISO 6396
Average Exterior Sound Pressure 99 dB(A) ISO 6395 – Dynamic Test

Operating Specifications

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Stick Length - Standard 5.5ft
Stick Length - Long 7.25ft
Maximum Dig Depth 13.62ft
Machine Overhang with Counterweight 16in
Machine Overhang 11in
Counterweight 551lb