308E2 CR Mini Hydraulic Excavator with Swing Boom

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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Product Specs

Engine

Engine Model: Cat® C3.3B
Engine Model: Cat® C3.3B
Net Power: 65 mm H2O
Net Power: 65.0 hp
Bore: 3.7 in
Displacement: 203.2 in³
Gross Power - ISO 14396: 66.6 mm H2O
Net Power - ISO 9249: 65 mm H2O
Rated Net Power - 2,400 rpm - ISO 9249/EEC 80/1269: 65 mm H2O
Stroke: 4.7 in
Emissions: Meets U.S. EPA Tier 4 Final and EU Stage IIIB emission standards.
Bore: 3.7 in
Displacement: 203.2 in3
Gross Power (ISO 14396): 66.6 hp
Net Power (ISO 9249): 65.0 hp
Rated Net Power @ 2,400 rpm (ISO 9249/EEC 80/1269): 65.0 hp
Stroke: 4.7 in
Emissions: Meets U.S. EPA Tier 4 Final and EU Stage IIIB emission standards.

Weights

Operating Weight: 18519 lb
Operating Weight: 18519.0 lb
Operating Weight - With Cab: 18519 lb
Note (1): Weight with rubber tracks, bucket, operator (75 kg/165 lb), full fuel and auxiliary lines.
Note (2): Weight varies depending on machine configuration.
Note: Weight with rubber tracks, bucket, operator (75 kg/165 lb), full fuel and auxiliary lines.
Note: Weight varies depending on machine configuration.

Swing System

Machine Swing Speed: 11 r/min
Machine Swing Speed: 11.0 rpm
Boom Swing - Left: 60°
Boom Swing - Right: 50°
Note: Automatic swing break, spring applied, hydraulic release.
Boom Swing – Right: 50°
Boom Swing – Left: 60°
Note: Automatic swing break, spring applied, hydraulic release.

Blade

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

Service Refill Capacities

Cooling System: 3.7 gal (US)
Cooling System: 3.7 gal
Engine Oil: 3 gal (US)
Engine Oil: 3.0 gal
Hydraulic Tank: 21.7 gal (US)
Hydraulic Tank: 21.7 gal
Fuel Tank: 33 gal (US)
Fuel Tank: 33.0 gal
Hydraulic System: 24.8 gal (US)
Hydraulic System: 24.8 gal

Travel System

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

Hydraulic System

Auxiliary Circuit - Primary (186 bar/2,734 psi): 33.8 gal/min
Auxiliary Circuit - Secondary (174 bar/2,524 psi): 16.9 gal/min
Digging Force - Bucket: 13534 lb
Digging Force - Stick - Long: 7891 lb
Digging Force - Stick - Standard: 9015 lb
Operating Pressure - Equipment: 4061 psi
Note: Load sensing hydraulics with variable displacement piston pump.
Operating Pressure - Travel: 4061 psi
Operating Pressure - Swing: 3481 psi
Digging Force – Stick (standard): 9015.0 lb
Auxiliary Circuit – Primary (186 bar/2,734 psi): 33.8 gal/min
Auxiliary Circuit – Secondary (174 bar/2,524 psi): 16.9 gal/min
Operating Pressure – Equipment: 4061.0 psi
Operating Pressure – Swing: 3481.0 psi
Operating Pressure – Travel: 4061.0 psi
Pump Flow at 2,000 rpm: 39.6 gal/min
Note: Load sensing hydraulics with variable displacement piston pump.

Operating Specifications

Maximum Dig Depth: 13.62 ft
Stick Length - Long: 7.25 ft
Stick Length - Standard: 5.5 ft
Counterweight: 551 lb
Machine Overhang: 11 in
Machine Overhang with Counterweight: 16 in
Maximum Dig Depth: 13.62 ft
Stick Length – Long: 7.25 ft
Stick Length – Standard: 5.50 ft

Cab

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

Standard Equipment

Engine
- Cat C3.3B diesel engine (meets U.S. EPA Tier 4 Final/EU Stage IIIB emission standards)
- Automatic engine idle
- Automatic engine shut-off
- Automatic two speed travel
- Diesel Particulate Filter (North America only)
- Diesel Oxidation Catalyst (North America only)
- Fuel and water separator
- Power on demand
Hydraulic System
- 1-way and 2-way (combined function)
- Accumulator
- Automatic swing parking brake
- Auxiliary hydraulic lines
- Adjustable auxiliary relief
- Auxiliary line quick disconnects
- Cat interlock system: hydraulic lockout
- Continuous auxiliary flow
- Ecology drain
- Hydraulic oil cooler
- High definition hydraulics
- Load sensing/flow sharing
Operator Environment
- 100% pilot control ergonomic joysticks
- Adjustable armrests
- Air conditioning/heat
- COMPASS: complete, operation, maintenance, performance and security system
  Multiple languages
- Cup holder
- High back suspension seat, heated
- Hydraulic neutral lockout bar
- Interior light
- Literature holder
- Pattern changer (optional in Europe)
- Radio (optional in Europe)
- Site reference system: leveling
- Tool storage area
- Travel control pedals with hand levers
- Washable floor mat
- Windshield wiper
Undercarriage
- Dozer blade with float function
- Track, rubber belt, 450 mm (18 in) width
- Tie down eyes on track frame
- Towing eye on base frame
Front Linkage
- 180 degree bucket rotation
- Certified lifting eye on bucket linkage (optional in Europe)
- Front shovel capable
- Thumb ready stick
Electrical
- 12 volt electrical system
- 60 ampere alternator
- 650 CCA maintenance free battery
- Fuse box
- Ignition key start/stop switch
- Slow blow fuse
- Warning horn
Lights And Mirrors
- Cab and boom light with time delay capability
- Mirror, rear view, cab left
Safety And Security
- Anti-theft system (COMPASS)
- Caterpillar Corporate “One Key” System
- Door locks
- Lockable fuel cap
- Rearview camera
- Retractable seat belt
- Roll Over Protective Structure (ROPS) (ISO 12117-2)
- Tip Over Protective Structure (TOPS) (ISO 12117)
- Top guard – ISO 10262 (Level II)
- Travel alarm (optional in Europe)

Attachments

Engine
- Engine block heater
Hydraulic System
- Quick coupler lines
- Boom lowering check valve (Standard on VAB configuration.)
- Stick lowering check valve (Standard on VAB configuration.)
- Secondary auxiliary hydraulic lines (Standard on VAB configuration.)
Undercarriage
- Blade, weld on
- Track, triple grouser (steel), 450 mm (18 in)
- Track, triple grouser (steel) with rubber pad, 450 mm (18 in)
- Track, triple grouser (steel), 600 mm (24 in)
Front Linkage
- Quick coupler: manual or hydraulic
- Thumb
- Buckets
- Full range of performance matched work tools
  Auger, hammer, shear, ripper
Lights And Mirrors
- Mirror, cab rear
Safety And Security
- Battery disconnect
- Front wire mesh guard
- Front steel plate guard
- Rain guard
Technology
- Product Link^™
Other Attachments
- Counterweight, extra, 1121 kg (2,493 lb) (Standard on VAB configuration.)

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