303E CR Mini Hydraulic Excavator

Overview
Engine Model
Cat C1.3
Net Power
24 hp
Operating Weight with Canopy
7,297 lb

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.

Engine

Engine Model
Cat C1.3
Net Power
24 hp
Gross Power – ISO 14396
25 hp
Bore
3 in
Stroke
4 in
Displacement
77 in3
Rated Net Power - 2,400 rpm - ISO 9249/EEC 80/1269
24 HP
Gross Power
25 hp
Engine Model
Cat C1.3
Net Power
24 HP
Gross Power - ISO 14396
25 HP
Bore
3 in
Displacement
77 in³
Stroke
4 in
Gross Power
25 HP
Note
Cat C1.3 engine meets U.S. EPA Tier 4 Final/EU Stage V emission standards.

Weights

Operating Weight with Canopy
7,297 lb
Operating Weight - With Cab
7,204 lb
Note
Weight includes counterweight, rubber tracks, bucket, operator, full fuel and auxiliary lines.
Operating Weight - With Canopy
6,721 lb
Note
Weight includes counterweight, rubber tracks, bucket, operator, full fuel and auxiliary lines.
Note
Weight includes counterweight, rubber tracks, bucket, operator, full fuel and auxiliary lines.

Hydraulic System

Pump Flow at 2,400 rpm
23 gal/min
Auxiliary Circuit – Primary (186 bar/2,734 psi)
16 gal/min
Auxiliary Circuit – Secondary (174 bar/2,524 psi)
7 gal/min
Type
Load Sensing Hydraulics with Variable Displacement Piston Pump
Operating Pressure - Equipment
3,553 psi
Operating Pressure - Travel
3,553 psi
Operating Pressure - Swing
2,625 psi
Digging Force - Stick - Standard
3,732 lbf
Digging Force - Stick - Long
3,327 lbf
Auxiliary Circuit - Primary (186 bar/2,734 psi)
16 gal/min
Auxiliary Circuit - Secondary (174 bar/2,524 psi)
7 gal/min
Digging Force - Bucket
6,385 lbf
Pump Flow at 2,400 rpm
23 gal/min
Auxiliary Circuit - Primary (186 bar/2,697 psi)
16 gal/min
Auxiliary Circuit - Secondary (174 bar/2,523 psi)
7 gal/min

Swing System

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

Blade

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

Service Refill Capacities

Cooling System
1 gal
Engine Oil
2 gal
Hydraulic Tank
12 gal
Fuel Tank
12 gal
Hydraulic System
17 gal
Cooling System
1 gal (US)
Engine Oil
2 gal (US)
Fuel Tank
12 gal (US)
Hydraulic System
17 gal (US)
Hydraulic Tank
12 gal (US)

Travel System

Travel Speed – High
3 mph
Travel Speed – Low
2 mph
Maximum Traction Force - High Speed
3,417 lbf
Maximum Traction Force - Low Speed
6,947 lbf
Ground Pressure
5 psi
Gradeability (maximum)
30°
Travel Speed - High
3 mile/h
Travel Speed - Low
2 mile/h
Ground Pressure
5 psi
Gradeability - Maximum
30°
Gradeability - Continuous Operation
20°
Ground Pressure - Cab Long Stick
5 psi
Ground Pressure - Cab Standard Stick
5 psi
Ground Pressure - Canopy Long Stick
5 psi
Ground Pressure - Canopy Standard Stick
4 psi
Ground Pressure with Cab - Long Stick, Optional Counterweight
5 psi
Ground Pressure with Cab - Standard Stick, Optional Counterweight
5 psi
Ground Pressure with Canopy - Long Stick, Optional Counterweight
5 psi
Ground Pressure with Canopy - Standard Stick, Optional Counterweight
5 psi

Dimensions (Approximate)

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

Undercarriage

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

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*

Operating Weight with Canopy - Standard Stick, Optional Counterweight
7,307 lb
Note
*Weight includes counterweight, rubber tracks, bucket, operator, full fuel and auxiliary lines.
Operating Weight with Cab - Long Stick
7,296 lb
Operating Weight with Cab - Long Stick, Optional Counterweight
7,883 lb
Operating Weight with Cab - Standard Stick
7,204 lb
Operating Weight with Cab - Standard Stick, Optional Counterweight
7,790 lb
Operating Weight with Canopy - Long Stick
6,813 lb
Operating Weight with Canopy - Long Stick, Optional Counterweight
7,400 lb
Operating Weight with Canopy - Standard Stick
6,721 lb
Operating Weight with Canopy - Standard Stick, Optional Counterweight
7,307 lb

Dimensions (Approximate) - Long Stick

Maximum Dig Height
167 in
Maximum Reach - Ground Level
193 in
Boom Height in Shipping Position
63 in
Boom In Reach
79 in
Boom Swing Left
24 in
Boom Swing Right
32 in
Dig Depth
117 in
Maximum Blade Depth
19 in
Maximum Blade Height
16 in
Maximum Dump Clearance
117 in
Maximum Reach
198 in
Overall Shipping Height
98 in
Overall Shipping Length
198 in
Overall Track Width
61 in
Overall Undercarriage Length
82 in
Swing Bearing Height
22 in
Tail Swing
31 in
Tail Swing with Extra Counterweight
35 in
Track Belt/Shoe Width
12 in
Vertical Wall
69 in

Dimensions (Approximate) - Standard Stick

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

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

Blade Down - Front
2,580 lb
Blade Down - Side
1,191 lb
Blade Up - Front
1,433 lb
Blade Up - Side
1,080 lb
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
1,632 lb
Blade Down - Side
750 lb
Blade Up - Front
904 lb
Blade Up - Side
662 lb
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
0 in
Machine Overhang with Counterweight
5 in
Stick Length - Long
61 in
Stick Length - Standard
50 in

Solid Performance in a Small Package – Compact and efficient design provides superior power.

Productivity and Durability – Designed for reliability.

Superior Operating Experience – Safety and comfort all day.

Simple Service and Maintenance Access – Low cost of ownership.

Unmatched Support and Solutions – Equipment, service and attachments to meet your needs.

  • Standard Equipment
    • 1-way and 2-way (combined function) auxiliary hydraulic lines
    • Lockable storage box
    • Cab mounted work light
    • Travel alarm (optional in Europe)
    • Dozer blade with float function
    • Suspension seat, vinyl covered
    • Automatic two speed travel
    • Horn
    • Lifting eye on bucket linkage (standard equipment for all regions except Europe)
    • Alternator
    • Product Link
    • Cup holder
    • Control pattern changer
    • Coat hook
    • Standard stick
    • Low maintenance linkage pin joints
    • Gauges or indicators for fuel level engine coolant temperature, hour meter, engine oil pressure, air cleaner, alternator and glow plugs, service interval
    • Rubber track
    • Canopy with Top Guard ISO 10262:1998 (Level 1), ROPS ISO 12117-2:2008 and TOPS ISO 12117:1997
    • Hydraulic oil cooler
    • Auxiliary line quick disconnects
    • Retractable seatbelt
    • Boom cylinder guard
    • Maintenance free battery
    • Adjustable armrests
    • “Thumb ready” sticks
    • Automatic swing park brake
    • Foot travel pedals
  • Optional Equipment
    • Mirrors for cab and canopy
    • Steel track
    • Cab, Top Guard ISO 10262:1998 (Level 1), ROPS ISO 12117-2:2008 and TOPS ISO 12117:1997
    • Mechanical quick coupler
    • Boom mounted light
    • High back suspension seat, fabric covered
    • Beacon socket for canopy machines

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