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CATERPILLAR - CRAWLER EXCAVATORS



Caterpillar 303E CR



TECHNICAL DATA AND PHOTOS




Model: 303E CR

Manufacturer: CATERPILLAR

Type: Mini hydraulic excavator



ENGINE:

Model: CAT C1.3
Type: four-stroke diesel engine
Cooling: water-cooled
Net power ISO 9249/EEC 80/1269: 17.5 kW (23.5 hp) at 2400 rpm
Gross power: 18.5 kW (24.8 hp)
Displacement: 1.26 L (77 in3)
Number of cylinders: 3
Bore: 78 mm (3.1 in)
Stroke: 88 mm (3.5 in)


HYDRAULIC SYSTEM:
Load sensing hydraulics with variable displacement piston pump.

Pump flow: 87.6 L/min (23.1 gal/min) at 2400 rpm
Maximum pressure - swing: 181 bar (2,625 psi)
Maximum pressure - travel: 245 bar (3,553 psi)
Maximum pressure - equipment: 245 bar (3,553 psi)
Auxiliary circuit primary: 60 L/min (15.9 gal/min) (186 bar/2,734 psi)
Auxiliary circuit secondary: 27 L/min (7.1 gal/min) (174 bar/2,524 psi)


SERVICE REFILL CAPACITIES:

Hydraulic system: 65 L (17.2 gal)
Hydraulic tank: 47 L (11.8 gal)
Cooling system: 4.7 L (1.2 gal)
Engine oil: 5.7 L (1.5 gal)
Fuel tank capacity: 45 L (11.8 gal)


SWING SYSTEM:

Boom swing left: 80
Automatic swing brake, spring applied, hydraulic release.

Boom swing right: 50

Machine swing speed: 9 rpm


TRAVEL SYSTEM:

Travel speed high: 4.5 km/h (2.8 mph)
Travel speed low: 2.4 km/h (1.5 mph)
Maximum traction force: high speed: 15.2 kN (3,417 lb)
Maximum traction force low speed: 30.9 kN (6,946 lb)
Ground pressure 32.2 kPa (4.6 psi)
Gradeability (maximum): 30


UNDERCARRIAGE:

Track roller type: double flange
Number of carrier rollers: 3
Number of track rollers: 3
Track width: 1550 mm (60 in)
Undercarriage length: 2210 mm (87 in)
Shoe width: 300 mm (12 in)
Optional equipment: steel track


OPERATION WEIGHTS
Weight includes counterweight, rubber tracks, bucket, operator, full fuel and auxiliary lines.

Operating weight with canopy: 3310 kg (7,297 lb)
Operating weight with cab: 3530 kg (7,782 lb)


DIMENSIONS:

Height to top of cab: 2500 mm (98 in)
Boom height in shipping position: 1590 mm (63 in)
Shipping length: 4470 mm (176 in)
Shoe width: 300 mm (12 in)
Track width: 1550 mm (60 in)
Undercarriage length: 2210 mm (87 in)
Swing bearing height: 565 mm (22 in)
Tail swing: 890 mm (35 in)


WORKING RANGES

Maximum digging depth: 2750 mm (108 in)
Maximum cutting height: 4530 mm (178 in)
Maximum reach at ground level: 4950 mm (195 in)
Maximum loading height: 3150 mm (124 in)
Maximum vertical wall digging depth: 1960 mm (77 in)
Digging force stick (standard): 16.6 kN (3,731 lb)
Digging force bucket: 28.4 kN (6,384 lb)


BLADE:

Width: 1550 mm (60 in)
Height: 335 mm (13 in)
Dig depth: 472 mm (19 in)
Lift height: 402 mm (16 in)


LIFT CAPACITIES AT GROUND LEVEL

Blade Down
Lift Point Radius 3000 mm (9'8")
Front: 1170 kg (2,580 lb)
Side: 540 kg (1,191 lb)

Blade Down
Lift Point Radius 4000 mm (13'1")
Front: 670 kg (1,477 lb)
Side: 310 kg (684 lb)

Blade Up
Lift Point Radius 3000 mm (9'8")
Front: 570 kg (1,257 lb)
Side: 480 kg (1,058 lb)

Blade Up
Lift Point Radius 4000 mm (13'1")
Front: 280 kg (617 lb)
Side: 280 kg (617 lb)


Caterpillar 303E CR mini hydraulic excavator
Caterpillar 303E CR mini hydraulic excavator.
Taken on: 7 May 2019
Size of the photo: 1920 1080 pixels, 1.71 MB
The image was extracted from the original photo.
The original photo is under the photo.


CAT 303E CR
CAT 303E CR
Taken on: 7 May 2019
Size of the photo: 1727 1241 pixels, 1.77 MB
The image was extracted from the original photo.
The original photo is under the photo.


The mini hydraulic excavator on a building site
The mini hydraulic excavator on a building site.
POHNPEI, Federated States of Micronesia (May 7, 2019) Sailors assigned to Naval Mobile Construction Battalion (NMCB) 4, Construction Civic Action Detail, Federated States of Micronesia (CCAD FSM), excavate soil for concrete footers during the construction of the new Nan U Medical Dispensary in Pohnpei, Federated States of Micronesia, May 7, 2019. The United States has been sending CCAD Teams to the FSM for decades to continue strengthening the enduring friendship and lasting partnership between the two countries. NMCB 4, provides expeditionary construction and engineering capabilities that includes maintenance and operation of expeditionary bases and facilities, tactical sustainment bridging, humanitarian assistance through construction civic action details and civic action teams and theater disaster response capabilities in the U.S. 7th Fleet area of operations.
Taken on: 7 May 2019
Size of the photo: 4851 2788 pixels, 6.30 MB
Camera model: Nikon D5
Lens: 24.0-70.0 mm f/2.8
Author of the photo: Mass Communication Specialist 2nd Class Jasen Moreno-Garcia/Released
Source: Official U.S. Navy Page
License: (CC BY 2.0)





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