CAT 308E2 CR Excavator


Undercarriage

Track Gauge 6.53 ft in (1990 mm)
Drawbar Pull 20720 lb (92.17 kN)
Ground Pressure 5.51 psi (38 kPa)
Max Travel Speed 3.42 mph (5.5 km/h)

Swing System

Machine Swing Speed 11 rpm
Note Automatic swing break, spring applied, hydraulic release.
Boom Swing – Left 60 degrees

Engine Details

Number Of Cylinders 4
Engine Make CAT
Engine Model C3.3B
Gross Power 66.6 hp (49.7 kw)
Net Power 65 hp (48.5 kw)
Power Measured @ 2400 rpm
Displacement 203.2 cu in (3.4 L)
Aspiration Turbocharged
Bore 3.7 in (94 mm)
Stroke 4.7 in (119.4 mm)
Emissions Meets U.S. EPA Tier 4 Final and EU Stage IIIB emission standards.
Net Power – Iso 9249 65 hp (48.5 kw)
Engine Model Cat C3.3B
Gross Power – Iso 14396 66.6 hp (49.7 kw)
Rated Net Power – 2,400 Rpm – Iso 9249/Eec 80/1269 65 hp (48.5 kw)

Operational Specs

Operating Weight 18519 lb (8400.1 kg)
Fuel Tank Capacity 33 gal (125 L)
Cooling System Fluid Capacity 3.7 gal (14.1 L)
Hydraulic System Fluid Capacity 21.7 gal (82.2 L)
Engine Oil Capacity 3 gal (11.4 L)

Swing Mechanism

Swing Speed 11 rpm

Weights

Operating Weight 18519 lb (8400.1 kg)
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.
Operating Weight – With Cab 18519 lb (8400.1 kg)

Buckets

Minimum Bucket Capacity 0.5 yd3 (0.4 m3)
Maximum Bucket Capacity 1.1 yd3 (0.8 m3)

Blade

Blade Width 7.7 ft in (2320 mm)
Blade Height 17.8 in (450 mm)
Height 17.7 in (449.6 mm)
Width 7.7 ft in (2319.1 mm)

Hydraulic System

Note Load sensing hydraulics with variable displacement piston pump.

Blade

Lift Height 15 in (381 mm)
Dig Depth 14.2 in (360.7 mm)

Hydraulic System

Operating Pressure – Swing 3481 psi
Operating Pressure – Equipment 4061 psi
Operating Pressure – Travel 4061 psi
Digging Force – Stick – Standard 9015 lb (4089.2 kg)
Digging Force – Stick – Long 7891 lb (3579.3 kg)
Digging Force – Bucket 13534 lb (6139 kg)
Auxiliary Circuit – Secondary (174 Bar/2,524 Psi) 16.9 gal/min
Auxiliary Circuit – Primary (186 Bar/2,734 Psi) 33.8 gal/min
Pump Flow At 2,000 Rpm 39.6 gal/min

Operating Specifications

Machine Overhang 11 in (279.4 mm)
Stick Length – Standard 66 in (1676.4 mm)
Stick Length – Long 87 in (2209.8 mm)
Maximum Dig Depth 163.5 in (4151.4 mm)
Machine Overhang With Counterweight 16 in (406.4 mm)
Counterweight 551 lb (250 kg)

Service Refill Capacities

Cooling System 3.7 gal (14.1 L)
Fuel Tank Capacity 33 gal (125 L)
Hydraulic Tank 21.7 gal (82.2 L)
Hydraulic System 24.8 gal (93.9 L)
Engine Oil 3 gal (11.4 L)

Cab

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

Travel System

Maximum Traction Force – High Speed 8408 lb (3813.9 kg)
Maximum Traction Force – Low Speed 14500 lb (6577.1 kg)
Travel Speed – High 3.2 mph (5.2 km/h)
Travel Speed – Low 1.8 mph (2.9 km/h)
Gradeability – Maximum 30 degrees
Ground Pressure 5.26 psi
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.
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