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CATERPILLAR - CRAWLER EXCAVATORS



CATERPILLAR 308E2 CR




TECHNICAL DATA AND PHOTOS

Model: 308E2 CR
Manufacturer: CATERPILLAR
Type: Mini hydraulic excavator with swing boom.


OPERATING WEIGHT:

Weight with rubber tracks, bucket, operator (75 kg/165 lb), full fuel and auxiliary lines.
Weight varies depending on machine configuration.
Operating weight with cab: 8400 kg (18,519 lb)


ENGINE:

Model: Cat C3.3B
Type: four-stroke engine, diesel
Net power ISO 9249: 48.5 kW (65 hp) at 2400 rpm
Net power EEC 80/1269: 48.5 kW (65 hp) at 2400 rpm
Gross power ISO 14396: 49.7 kW (66.6 hp)
Displacement: 3330 cm3 (203.2 in3)
Number of cylinders: 4
Bore: 94 mm (3.7 in)
Stroke: 120 mm (4.7 in)
Engine emissions: Tier 4 Final/Stage IIIB emission standards.


FLUID CAPACITIES:

Cooling system: 14 liters (3.7 gal)
Engine oil: 11.2 liters (3.0 gal)
Hydraulic tank: 82 liters (21.7 gal)
Hydraulic system: 94 liters (24.8 gal)
Fuel tank: 125 liters (33 gal)


SOUND AND AIR CONDITIONING SYSTEM:

Dynamic operator sound pressure ISO 6396: 70 dB(A)
Average exterior sound pressure ISO 6395: 99 dB(A) dynamic test

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).


SWING MECHANISM:

Swing speed: 11 rpm
Boom swing left: 60 - 1010 mm (3'4")
Boom swing right: 50 - 635 mm (2'1")


HYDRAULIC SYSTEM:

Pump flow: 150 liters/min (39.6 gal/min) at 2000 rpm
Operating pressure travel: 28 000 kPa (4,061 psi)
Operating pressure swing: 24 000 kPa (3,481 psi)
Operating pressure equipment: 28 000 kPa (4,061 psi)
Auxiliary circuit primary: 128 liters/min (33.8 gal/min)
(280 bar/4,061 psi)
Auxiliary circuit secondary: 64 liters/min (16.9 gal/min)
(280 bar/4,061 psi)
Digging force stick (standard): 40.1 kN (9,015 lbf)
Digging force stick (long): 35.1 kN (7,891 lbf)
Digging force bucket: 60.2 kN (13,534 lbf)


TRAVEL SYSTEM AND UNDERCARRIAGE:

Drive modules are integrated into the roller frame for total protection.
Straight line travel when tracking and operating the front linkage simultaneously.
Each track is driven by one independent 2-speed motor.

Maximum traction force:
High speed: 37.4 kN (8,408 lbf)
Low speed: 64.5 kN (14,500 lbf)
Gradeability (maximum): 30
Ground pressure: 36.3 kPa (5.26 psi)

Travel speed: High: 5.1 km/h (3.17 mph) Low: 2.8 km/h (1.74 mph)

Track, rubber belt, 450 mm (18 in) width.
Track width: 2320 mm (7'7")
Undercarriage length: 2903 mm (9'6")


DIMENSIONS:

Tail swing radius with standard counterweight: 1450 mm (4'9")
Boom height in shipping position:
With standard stick: 2280 mm (7'6")
With long stick: 2230 mm (7'4")
Cab height: 2550 mm (8'4")
Swing bearing height: 735 mm (2'5")
Shipping length:
With standard stick: 6380 mm (20'11")
With long stick: 6340 mm (20'10")


DIMENSIONS WITH VARIABLE ANGLE BOOM:

Tail swing radius with standard counterweight: 1450 mm (57 in)
Tail swing radius with extra counterweight: 1565 mm (62 in)
Boom height in shipping position:
Standard stick with angle boom extended: 2280 mm (90 in)
Standard stick with angle boom retracted: 2200 mm (87 in)
Cab height: 2550 mm (8'4")
Swing bearing height: 735 mm (2'5")
Shipping length:
Standard stick with angle boom extended: 7010 mm (276 in)
Standard stick with angle boom retracted: 5795 mm (228 in)


WORKING RANGES:
With Standard Stick:

Maximum digging depth: 4150 mm (13'7")
Maximum reach at ground level: 6820 mm (22'9")
Maximum reach: 7020 mm (23'0")
Maximum digging height: 6640 mm (21'9")
Maximum loading height: 4670 mm (15'4")


WORKING RANGES:
With Long Stick:

Maximum digging depth: 4690 mm (15'5")
Maximum reach at ground level: 7350 mm (24'1")
Maximum reach: 7540 mm (24'9")
Maximum digging height: 6990 mm (22'11")
Maximum loading height: 5010 mm (16'5")


WORKING RANGES:
With Variable Angle Boom:
Standard Stick with Angle Boom Extended:
Maximum digging depth: 3980 mm (157 in)
Maximum reach at ground level: 7632 mm (300 in)
Maximum reach: 7780 mm (306 in)
Maximum digging height: 8000 mm (315 in)
Maximum loading height: 6080 mm (239 in)


WORKING RANGES:
With Variable Angle Boom:
Standard Stick with Angle Boom Retracted:
Maximum digging depth: 3710 mm (146 in)
Maximum reach at ground level: 6365 mm (251 in)
Maximum reach: 6550 mm (258 in)
Maximum digging height: 5200 mm (205 in)
Maximum loading height: 3360 mm (132 in)


BLADE:

Width: 2320 mm (91.3 in)
Height: 450 mm (17.7 in)
Dig depth: 360 mm (14.2 in)
Lift height: 380 mm (15.0 in)
Maximum blade height: 420 mm (1 ft 5 in)
Maximum blade depth: 320 mm (1 ft 1 in)


CATERPILLAR 308E2 CR hydraulic excavator.
CATERPILLAR 308E2 CR hydraulic excavator.
Date of the photo: 20 August 2016
Size of the photo: 2467 x 2775, 4,82 MB
Author of the photo: U.S. Army photo by Christopher Gardner
License : (CC BY 2.0)
Changes made: The image was extracted from the original photo.
The original photo is under the photo.


CAT 308E2 CR hydraulic excavator is working in brook.
CAT 308E2 CR hydraulic excavator is working in brook.
Clearing of flood debris restricting drainage in Ellicott City, USA.
Michael Vaccaro, safety engineer tech with the U.S. Army Corps of Engineers, Baltimore District, supervises contractors clearing debris restricting drainage capacity within the Hudson River in Ellicott City, Maryland, on August 20 2016. The Corps is providing assistance through a cooperative agreement with Maryland Emergency Management Agency to help local and state recovery efforts after a deadly flash flood hit the city.
Date of the photo: 20 August 2016
Size of the photo: 5184 x 3456, 13,6 MB
Camera model: Canon EOS REBEL T5
Lens: EF-S 18-55 mm f/3.5-5.6 IS II
Author of the photo: U.S. Army photo by Christopher Gardner
Source: U.S. Army Corps of Engineers
License : (CC BY 2.0)





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