303E CR Mini Hydraulic Excavator

303E CR Mini Hydraulic Excavator

The Cat® 303E CR Mini Hydraulic Excavator delivers high performance, durability and versatility in a compact design to help you work in a variety of applications.

Download Product Documents

Click a link to download the document:

Engine

Engine Model
Cat C1.3
Net Power
23.5hp
Gross Power – ISO 14396
24.8hp
Bore
3.1in
Stroke
3.5in
Displacement
77in3
Rated Net Power - 2,400 rpm - ISO 9249/EEC 80/1269
23.5HP
Gross Power
24.8hp
Engine Model
Cat C1.3
Net Power
23.5HP
Gross Power - ISO 14396
24.8HP
Bore
3.1in
Displacement
77in³
Stroke
3.5in
Gross Power
24.8HP

Weights

Operating Weight with Canopy
7297lb
Operating Weight - With Cab
7204lb
Note
Weight includes counterweight, rubber tracks, bucket, operator, full fuel and auxiliary lines.
Operating Weight - With Canopy
6721lb
Note
Weight includes counterweight, rubber tracks, bucket, operator, full fuel and auxiliary lines.

Hydraulic System

Pump Flow at 2,400 rpm
23.1gal/min
Auxiliary Circuit – Primary (186 bar/2,734 psi)
15.9gal/min
Auxiliary Circuit – Secondary (174 bar/2,524 psi)
7.1gal/min
Operating Pressure - Equipment
3553psi
Operating Pressure - Travel
3553psi
Operating Pressure - Swing
2625psi
Digging Force - Stick - Standard
3732lbf
Digging Force - Stick - Long
3327lbf
Type
Load Sensing Hydraulics with Variable Displacement Piston Pump
Auxiliary Circuit - Primary (186 bar/2,734 psi)
15.9gal/min
Auxiliary Circuit - Secondary (174 bar/2,524 psi)
7.1gal/min
Digging Force - Bucket
6385lbf
Pump Flow at 2,400 rpm
23.1gal/min

Swing System

Machine Swing Speed
9rpm
Boom Swing – Left*
80°
Note
*Automatic swing brake, spring applied, hydraulic release.
Boom Swing – Right
50°
Machine Swing Speed
9r/min
Boom Swing - Left*
80°
Boom Swing - Right
50°
Note
*Automatic swing brake, spring applied, hydraulic release.

Blade

Width
60in
Height
13in
Dig Depth
19in
Lift Height
16in
Width
60in

Service Refill Capacities

Cooling System
1.2gal
Engine Oil
1.5gal
Hydraulic Tank
12.4gal
Fuel Tank
11.8gal
Hydraulic System
17.2gal
Cooling System
1.2gal (US)
Engine Oil
1.5gal (US)
Fuel Tank
11.9gal (US)
Hydraulic System
17.2gal (US)
Hydraulic Tank
12.4gal (US)

Travel System

Travel Speed – High
2.8mph
Travel Speed – Low
1.5mph
Maximum Traction Force - High Speed
3417lbf
Maximum Traction Force - Low Speed
6947lbf
Ground Pressure
4.6psi
Gradeability (maximum)
30°
Travel Speed - High
2.8mile/h
Travel Speed - Low
1.5mile/h
Ground Pressure
4.6psi
Gradeability - Maximum
30°
Gradeability - Continuous Operation
20°
Ground Pressure - Cab Long Stick
4.8psi
Ground Pressure - Cab Standard Stick
4.7psi
Ground Pressure - Canopy Long Stick
4.5psi
Ground Pressure - Canopy Standard Stick
4.4psi

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)

Dimensions (Approximate)

Dig Depth
108in
Vertical Wall
77in
Maximum Reach - Ground Level
189in
Maximum Reach
195in
Maximum Dig Height
178in
Maximum Dump Clearance
124in
Boom In Reach
83in
Tail Swing
35in
Maximum Blade Height
16in
Maximum Blade Depth
19in
Boom Height - Shipping Position
63in
O/A Shipping Height
98in
Swing Bearing - Height
22in
O/A Undercarriage Length
87in
O/A Shipping Length
176in
Boom Swing - Right
32in
Boom Swing - Left
24in
Track Belt/Shoe Width
12in
O/A Track Width
60in
Dig Depth
108in
Maximum Reach
195in

Undercarriage

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

Weights*

Operating Weight with Canopy - Standard Stick, Optional Counterweight
7307lb
Note
*Weight includes counterweight, rubber tracks, bucket, operator, full fuel and auxiliary lines.

Dimensions (Approximate) - Long Stick

Maximum Dig Height
167in
Maximum Reach - Ground Level
193in

Dimensions (Approximate) - Standard Stick

Maximum Dig Height
178in
Maximum Reach - Ground Level
189in

Lift Capacities at Ground Level* - Lift Point Radius: 3000 mm (9'8")

Blade Down - Front
2580lb
Blade Down - Side
1191lb
Blade Up - Front
1433lb
Blade Up - Side
1080lb
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. The excavator bucket weight is not included on this chart. Liftin

Lift Capacities at Ground Level* - Lift Point Radius: 4000 mm (13'1")

Blade Down - Front
1632lb
Blade Down - Side
750lb
Blade Up - Front
904lb
Blade Up - Side
662lb
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. The excavator bucket weight is not included on this chart. Liftin

Operating Specifications

Machine Overhang
0in
Machine Overhang with Counterweight
5in
Stick Length - Long
61in
Stick Length - Standard
50in

Standard Equipment

  • Standard Equipment
    • 1-way and 2-way (combined function) auxiliary hydraulic lines
    • Adjustable armrests
    • Alternator
    • Automatic swing park brake
    • Automatic two speed travel
    • Auxiliary line quick disconnects
    • Boom cylinder guard
    • Cab mounted work light
    • Canopy with Top Guard ISO 10262:1998 (Level 1), ROPS ISO 12117-2:2008 and TOPS ISO 12117:1997
    • Coat hook
    • Cup holder
    • Control pattern changer
    • Dozer blade with float function
    • 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
    • Horn
    • Hydraulic oil cooler
    • Lifting eye on bucket linkage (standard equipment for all regions except Europe)
    • Lockable storage box
    • Low maintenance linkage pin joints
    • Maintenance free battery
    • Product Link
    • Rubber track
    • Retractable seatbelt
    • Standard stick
    • Suspension seat, vinyl covered
    • “Thumb ready” sticks
    • Travel alarm (optional in Europe)

Optional Equipment

  • Optional Equipment
    • Beacon socket for canopy machines
    • Boom mounted light
    • Cab, Top Guard ISO 10262:1998 (Level 1), ROPS ISO 12117-2:2008 and TOPS ISO 12117:1997
    • High back suspension seat, fabric covered
    • Mechanical quick coupler
    • Mirrors for cab and canopy
    • Steel track