303.5E CR Hydraulic Excavator

Product Description

The Cat 303.5E CR delivers high performance in a compact radius design to help you work in the tightest applications.

Engine Model
Cat® C1.8
Net Power
31.6 hp
23.6 kW
Gross Power
33.3 hp
24.8 kW
Operating Weight
7734.0 lb
3508.0 kg
Operating Weight with Cab
8139.0 lb
3692.0 kg
Max digging depth - standard stick
9.6 ft
2880.0 mm
Max reach ground level - standard stick
16.7 ft
5060.0 mm
Height over cab
8.2 ft
2500.0 mm
Max cutting height - long stick
16.5 ft
5030.0 mm
Max cutting height - standard stick
16.2 ft
4920.0 mm
Max dump height - long stick
11.9 ft
3640.0 mm
Max dump height - standard stick
11.5 ft
3520.0 mm
Max horizontal reach - long stick
17.8 ft
5440.0 mm
Max horizontal reach - standard stick
17.1 ft
5200.0 mm
Max vertical dig depth - long stick
8.2 ft
2470.0 mm
Max vertical dig depth - standard stick
7.7 ft
2320.0 mm
Shipping Height
8.2 ft
2500.0 mm
Shipping Length
15.5 ft
4730.0 mm
Track Shoe Width
1.0 ft
300.0 mm
Transport Width
5.8 ft
1780.0 mm
Engine Dimensions
3.4 in
87.0 mm
4.0 in
102.4 mm
110.0 in3
1.8 L
Travel System
Max traction force - high speed
3799.0 lb
16.9 kN
Max traction force - low speed
6969.0 lb
31.0 kN
Travel Speed - High
2.8 mph
4.6 km/h
Travel Speed - Low
1.6 mph
2.6 km/h
Hydraulic System
Operating Pressure - Equipment
3553.0 psi
245.0 bar
Digging Forces - Stick (standard)
4249.0 lb
18.9 kN
Digging Force - Stick (long)
3799.0 lb
16.9 kN
Digging Force - Bucket
7419.0 lb
33.0 kN
Operating Pressure - Travel
3553.0 psi
245.0 bar
Operating Pressure - Swing
2625.0 psi
181.0 bar
Auxiliary circuit - primary
15.9 gal/min
60.0 L/min
Auxiliary circuit - secondary
7.1 gal/min
27.0 L/min
Swing System
Machine Swing Speed
9.0 RPM
9.0 RPM
Boom swing - left (without stop)
80.0 Degrees
80.0 Degrees
Boom swing - left (with stop)
55.0 Degrees
55.0 Degrees
Boom Swing - Right
50.0 Degrees
50.0 Degrees
70.0 in
1780.0 mm
12.8 in
325.0 mm
Dig Depth
18.5 in
470.0 mm
Lift Height
15.7 in
400.0 mm
Service Refill Capacities
Cooling System
1.5 gal
5.5 L
Engine Oil
1.8 gal
7.0 L
Hydraulic Tank
11.2 gal
42.3 L
Fuel Tank
12.2 gal
46.0 L
Hydraulic System
17.2 gal
65.0 L
MSC Comments
MSC Spec Date

Standard Equipment

1-way and 2-way (combined function) auxiliary hydraulic lines
Adjustable wrist rests
Automatic engine idle
Automatic swing park brake
Automatic two speed travel
Auxiliary line quick disconnects
Boom cylinder guard
Cab mounted work light
Canopy with FOPS ISO 10262 (Level 1) and Tip-Over Protection (TOPS) ISO 12117
Coat hook
Cup holder
Control pattern changer (not available in Europe)
COMPASS display panel
Dozer blade with float function
Floor mat
Foot travel pedals
Gauges or indicators for fuel level engine coolant temperature, hour meter, engine oil pressure, air cleaner, alternator and glow plugs, service interval
Hydraulic oil cooler
Lifting eye on bucket linkage (optional in Europe)
Lockable storage box
Low maintenance linkage pin joints
Maintenance free battery
Rubber track
Seatbelt, 76 mm (3 in) wide, retractable (optional in Europe)
Standard stick
Suspension seat, vinyl covered
"Thumb ready" stick (standard equipment in all regions except Europe)
Travel alarm (optional in Europe)

Optional Equipment

Air conditioning
Angle dozer blade with float function
Beacon socket for canopy machines
Boom check valve (Europe only)
Boom mounted light
Cab, radio ready with FOPS ISO 10262 (Level 1), Tip-Over Protection (TOPS) ISO 12117, heater/defroster, interior light and windshield wiper/washer
Ecology drain valve for hydraulic tank
Ecology drain valve for engine oil
Fan and sun blind installation
Front screen guard for cab and canopy
High back suspension seat, fabric covered
Hydraulic quick coupler lines
Long stick
Mechanical quick coupler
Mirrors for cab and canopy
Secondary auxiliary hydraulic lines
Steel track and steel track with rubber pads

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