CAT 303E CR Mini Excavator


Dimensions (Approximate) – Long Stick

Vertical Wall 69 in (1752.6 mm)
Boom Height In Shipping Position 63 in (1600.2 mm)
Boom Swing Left 24 in (609.6 mm)
Boom Swing Right 32 in (812.8 mm)
Dig Depth 117 in (2971.8 mm)
Maximum Blade Depth 19 in (482.6 mm)
Maximum Blade Height 16 in (406.4 mm)
Maximum Dig Height 13.92 ft in (0.36 m)
Maximum Dump Clearance 117 in (2971.8 mm)
Maximum Reach 198 in (5029.2 mm)
Maximum Reach – Ground Level 16.09 ft in (0.41 m)
Overall Shipping Height 98 in (2489.2 mm)
Overall Shipping Length 198 in (5029.2 mm)
Overall Track Width 61 in (1549.4 mm)
Overall Undercarriage Length 82 in (2082.81 mm)
Swing Bearing Height 22 in (558.8 mm)
Tail Swing 31 in (787.4 mm)
Tail Swing With Extra Counterweight 35 in (889 mm)
Track Belt/Shoe Width 12 in (304.8 mm)

Dimensions (Approximate) – Standard Stick

Boom Height In Shipping Position 63 in (1600.2 mm)
Tail Swing 31 in (787.4 mm)
Swing Bearing Height 22 in (558.8 mm)
Maximum Reach 195 in (4953 mm)
Maximum Reach – Ground Level 15.75 ft in (0.41 m)
Overall Shipping Height 98 in (2489.2 mm)
Boom In Reach 83 in (2108.2 mm)
Boom Swing Left 24 in (609.6 mm)
Overall Shipping Length 176 in (4470.4 mm)
Boom Swing Right 32 in (812.8 mm)
Tail Swing With Extra Counterweight 35 in (889 mm)
Dig Depth 108 in (2743.2 mm)
Overall Track Width 60 in (1524 mm)
Maximum Blade Depth 19 in (482.6 mm)
Vertical Wall 77 in (1955.8 mm)
Maximum Blade Height 16 in (406.4 mm)
Overall Undercarriage Length 82 in (2082.81 mm)
Maximum Dig Height 14.84 ft in (0.38 m)
Track Belt/Shoe Width 12 in (304.8 mm)
Maximum Dump Clearance 124 in (3149.6 mm)

Undercarriage

Number Of Carrier Rollers 1
Number Of Track Rollers 4
Track Roller Type Center Flange

Swing System

Machine Swing Speed 9 rpm
Note *Automatic swing brake, spring applied, hydraulic release.
Boom Swing – Left* 80 degrees

Engine Details

Gross Power 24.8 hp (18.5 kw)
Net Power 23.5 hp (17.6 kw)
Displacement 77 cu in (1.3 L)
Bore 3.1 in (78.8 mm)
Stroke 3.5 in (88.9 mm)
Engine Model Cat C1.3
Gross Power – Iso 14396 24.8 hp (18.5 kw)
Rated Net Power – 2,400 Rpm – Iso 9249/Eec 80/1269 23.5 hp (17.6 kw)

Weights

Note Weight includes counterweight, rubber tracks, bucket, operator, full fuel and auxiliary lines.
Operating Weight – With Cab 7204 lb (3267.7 kg)
Operating Weight – With Canopy 6721 lb (3048.6 kg)

Blade

Height 13 in (330.2 mm)
Width 5 ft in (1524 mm)

Hydraulic System

Hydraulic System Type Load Sensing Hydraulics with Variable Displacement Piston Pump

Blade

Lift Height 16 in (406.4 mm)
Dig Depth 19 in (482.6 mm)

Hydraulic System

Operating Pressure – Swing 2625 psi
Operating Pressure – Equipment 3553 psi
Operating Pressure – Travel 3553 psi
Digging Force – Stick – Standard 3732 lb (1692.9 kg)
Digging Force – Stick – Long 3327 lb (1509.2 kg)
Digging Force – Bucket 6385 lb (2896.2 kg)
Pump Flow At 2,400 Rpm 23.1 gal/min
Auxiliary Circuit – Primary (186 Bar/2,697 Psi) 15.9 gal/min
Auxiliary Circuit – Secondary (174 Bar/2,523 Psi) 7.1 gal/min

Operating Specifications

Stick Length – Standard 50 in (1270 mm)
Stick Length – Long 61 in (1549.4 mm)
Machine Overhang With Counterweight 5 in (127 mm)

Service Refill Capacities

Cooling System 1.2 gal (4.6 L)
Fuel Tank Capacity 11.9 gal (45.1 L)
Hydraulic Tank 12.4 gal (47 L)
Hydraulic System 17.2 gal (65.2 L)
Engine Oil 1.5 gal (5.7 L)

Travel System

Maximum Traction Force – High Speed 3417 lb (1550 kg)
Maximum Traction Force – Low Speed 6947 lb (3151.2 kg)
Travel Speed – High 2.8 mph (4.6 km/h)
Travel Speed – Low 1.5 mph (2.5 km/h)
Ground Pressure – Canopy Standard Stick 4.4 psi
Ground Pressure – Canopy Long Stick 4.5 psi
Ground Pressure – Cab Standard Stick 4.7 psi
Ground Pressure – Cab Long Stick 4.8 psi
Gradeability – Continuous Operation 20 degrees
Ground Pressure With Canopy – Standard Stick, Optional Counterweight 4.8 psi
Ground Pressure With Canopy – Long Stick, Optional Counterweight 4.9 psi
Ground Pressure With Cab – Standard Stick, Optional Counterweight 5.1 psi
Ground Pressure With Cab – Long Stick, Optional Counterweight 5.2 psi
Gradeability (< 10 Minutes Operation) 30 degrees

Certification – Cab And Canopy

Roll Over Protective Structure (Rops) ISO 12117-2:2008
Tip Over Protective Structure (Tops) ISO 12117:1997
Top Guard ISO 10262:1998 (Level I)

Weights*

Note *Weight includes counterweight, rubber tracks, bucket, operator, full fuel and auxiliary lines.
Operating Weight With Canopy – Standard Stick, Optional Counterweight 7307 lb (3314.4 kg)
Operating Weight With Canopy – Standard Stick 6721 lb (3048.6 kg)
Operating Weight With Canopy – Long Stick, Optional Counterweight 7400 lb (3356.6 kg)
Operating Weight With Canopy – Long Stick 6813 lb (3090.4 kg)
Operating Weight With Cab – Standard Stick, Optional Counterweight 7790 lb (3533.5 kg)
Operating Weight With Cab – Standard Stick 7204 lb (3267.7 kg)
Operating Weight With Cab – Long Stick, Optional Counterweight 7883 lb (3575.7 kg)
Operating Weight With Cab – Long Stick 7296 lb (3309.5 kg)

Lift Capacities At Ground Level* – Lift Point Radius: 3000 Mm (9’8″)

Blade Down – Front 2580 lb (1170.3 kg)
Blade Up – Front 1433 lb (650 kg)
Blade Down – Side 1191 lb (540.3 kg)
Blade Up – Side 1080 lb (489.9 kg)
Note *The above loads are in compliance with hydraulic excavator lift capacity rating standard ISO 10567:2007 and they do not exceed 87% of hydraulic lifting capacity or 75% of tipping capacity. Theexcavator bucket weight is not included on this chart. Liftingcapacities are for machine with cab, optional counterweight and standard stick.

Lift Capacities At Ground Level* – Lift Point Radius: 4000 Mm (13’1″)

Blade Down – Front 1632 lb (740.3 kg)
Blade Up – Front 904 lb (410.1 kg)
Blade Down – Side 750 lb (340.2 kg)
Blade Up – Side 662 lb (300.3 kg)
Note *The above loads are in compliance with hydraulic excavator lift capacity rating standard ISO 10567:2007 and they do not exceed 87% of hydraulic lifting capacity or 75% of tipping capacity. Theexcavator bucket weight is not included on this chart. Liftingcapacities are for machine with cab, optional counterweight and standard stick.
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