US
Metric

Overview

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
23.50 hp
17.50 kW
Rated Net Power - 2,400 rpm - ISO 9249/EEC 80/1269
23.50 HP
17.50 kW
Gross Power – ISO 14396
24.80 hp
18.50 kW
Bore
3.10 in
78.00 mm
Stroke
3.50 in
88.00 mm
Displacement
77.00 in3
1.26 L
Gross Power
24.80 hp
18.50 kW

Weights

Operating Weight with Canopy
7297.00 lb
3310.00 kg
Operating Weight - With Cab
7204.00 lb
3267.00 kg
Note
Weight includes counterweight, rubber tracks, bucket, operator, full fuel and auxiliary lines.

Travel System

Travel Speed – High
2.80 mph
4.50 km/h
Travel Speed – Low
1.50 mph
2.40 km/h
Maximum Traction Force - High Speed
3417.00 lbf
15.20 kN
Maximum Traction Force - Low Speed
6947.00 lbf
30.90 kN
Ground Pressure
4.60 psi
32.20 kPa
Gradeability (maximum)
30°

Hydraulic System

Type
Load Sensing Hydraulics with Variable Displacement Piston Pump
Pump Flow at 2,400 rpm
23.10 gal/min
87.60 L/min
Operating Pressure - Equipment
3553.00 psi
245.00 bar
Operating Pressure - Travel
3553.00 psi
245.00 bar
Operating Pressure - Swing
2625.00 psi
181.00 bar
Auxiliary Circuit – Primary (186 bar/2,734 psi)
15.90 gal/min
60.00 L/min
Auxiliary Circuit – Secondary (174 bar/2,524 psi)
7.10 gal/min
27.00 L/min
Digging Force - Stick - Standard
3732.00 lbf
16.60 kN
Digging Force - Stick - Long
3327.00 lbf
14.80 kN

Swing System

Machine Swing Speed
9.00 rpm
9.00 rpm
Boom Swing – Left*
80°
Boom Swing – Right
50°
Note
*Automatic swing brake, spring applied, hydraulic release.

Blade

Width
60.00 in
1550.00 mm
Height
13.00 in
335.00 mm
Dig Depth
19.00 in
472.00 mm
Lift Height
16.00 in
402.00 mm

Service Refill Capacities

Cooling System
1.20 gal
4.70 L
Engine Oil
1.50 gal
5.70 L
Fuel Tank
11.80 gal
45.00 L
Hydraulic Tank
12.40 gal
47.00 L
Hydraulic System
17.20 gal
65.00 L

Dimensions (Approximate)

Dig Depth
108.00 in
2750.00 mm
Vertical Wall
77.00 in
1960.00 mm
Maximum Reach - Ground Level
189.00 in
4810.00 mm
Maximum Reach
195.00 in
4950.00 mm
Maximum Dig Height
178.00 in
4530.00 mm
Maximum Dump Clearance
124.00 in
3150.00 mm
Boom In Reach
83.00 in
2110.00 mm
Tail Swing
35.00 in
890.00 mm
Maximum Blade Height
16.00 in
402.00 mm
Maximum Blade Depth
19.00 in
472.00 mm
Boom Height - Shipping Position
63.00 in
1590.00 mm
O/A Shipping Height
98.00 in
2500.00 mm
Swing Bearing - Height
22.00 in
565.00 mm
O/A Undercarriage Length
87.00 in
2210.00 mm

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)

Dimensions (Approximate)

O/A Shipping Length
176.00 in
4470.00 mm
Boom Swing - Right
32.00 in
825.00 mm
Boom Swing - Left
24.00 in
610.00 mm
Track Belt/Shoe Width
12.00 in
300.00 mm
O/A Track Width
60.00 in
1550.00 mm

Engine

Engine Model
Cat C1.3
Net Power
23.50 HP
17.50 kW
Gross Power - ISO 14396
24.80 HP
18.50 kW

Weights

Operating Weight - With Canopy
6721.00 lb
3048.00 kg

Engine

Bore
3.10 in
78.00 mm
Displacement
77.00 in³
1.30 l
Stroke
3.50 in
88.00 mm

Travel System

Travel Speed - High
2.80 mile/h
4.50 km/h
Travel Speed - Low
1.50 mile/h
2.40 km/h

Hydraulic System

Auxiliary Circuit - Primary (186 bar/2,734 psi)
15.90 gal/min
60.00 l/min
Auxiliary Circuit - Secondary (174 bar/2,524 psi)
7.10 gal/min
27.00 l/min
Digging Force - Bucket
6385.00 lbf
28.40 kN
Pump Flow at 2,400 rpm
23.10 gal/min
88.00 l/min

Swing System

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

Blade

Width
60.00 in
1550.00 mm

Service Refill Capacities

Cooling System
1.20 gal (US)
4.70 l
Engine Oil
1.50 gal (US)
5.70 l
Fuel Tank
11.90 gal (US)
45.00 l
Hydraulic System
17.20 gal (US)
65.00 l
Hydraulic Tank
12.40 gal (US)
47.00 l

Engine

Gross Power
24.80 HP
18.50 kW

Travel System

Ground Pressure
4.60 psi
32.20 kPa

Dimensions (Approximate)

Dig Depth
108.00 in
2750.00 mm
Maximum Reach
195.00 in
4950.00 mm

Travel System

Gradeability - Maximum
30°

Weights

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

Dimensions (Approximate) - Long Stick

Boom Height in Shipping Position
63.00 in
1600.00 mm
Boom In Reach
79.00 in
2000.00 mm
30°
Boom Swing Left
24.00 in
610.00 mm
Boom Swing Right
32.00 in
825.00 mm
Dig Depth
117.00 in
2980.00 mm
Maximum Blade Depth
19.00 in
470.00 mm
Maximum Blade Height
16.00 in
400.00 mm
Maximum Dig Height
167.00 in
4250.00 mm
Maximum Dump Clearance
117.00 in
2970.00 mm
Maximum Reach
198.00 in
5040.00 mm
Maximum Reach - Ground Level
193.00 in
4910.00 mm
Overall Shipping Height
98.00 in
2500.00 mm
Overall Shipping Length
198.00 in
5030.00 mm
Overall Track Width
61.00 in
1550.00 mm
Overall Undercarriage Length
82.00 in
2080.00 mm
Swing Bearing Height
22.00 in
565.00 mm
Tail Swing
31.00 in
775.00 mm
Tail Swing with Extra Counterweight
35.00 in
890.00 mm
Track Belt/Shoe Width
12.00 in
300.00 mm
Vertical Wall
69.00 in
1750.00 mm

Dimensions (Approximate) - Standard Stick

Boom Height in Shipping Position
63.00 in
1590.00 mm
Boom In Reach
83.00 in
2110.00 mm
Boom Swing Left
24.00 in
610.00 mm
Boom Swing Right
32.00 in
825.00 mm
Dig Depth
108.00 in
2750.00 mm
Maximum Blade Depth
19.00 in
472.00 mm
Maximum Blade Height
16.00 in
402.00 mm
Maximum Dig Height
178.00 in
4530.00 mm
Maximum Dump Clearance
124.00 in
3150.00 mm
Maximum Reach
195.00 in
4950.00 mm
Maximum Reach - Ground Level
189.00 in
4810.00 mm
Overall Shipping Height
98.00 in
2500.00 mm
Overall Shipping Length
176.00 in
4470.00 mm
Overall Track Width
60.00 in
1550.00 mm
Overall Undercarriage Length
82.00 in
2080.00 mm
Swing Bearing Height
22.00 in
565.00 mm
Tail Swing
31.00 in
775.00 mm
Tail Swing with Extra Counterweight
35.00 in
890.00 mm
Track Belt/Shoe Width
12.00 in
300.00 mm
Vertical Wall
77.00 in
1960.00 mm

Hydraulic System

Auxiliary Circuit - Primary (186 bar/2,697 psi)
15.90 gal/min
60.00 l/min
Auxiliary Circuit - Secondary (174 bar/2,523 psi)
7.10 gal/min
27.00 l/min

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

Blade Down - Front
2580.00 lb
1170.00 kg
Blade Down - Side
1191.00 lb
540.00 kg
Blade Up - Front
1433.00 lb
650.00 kg
Blade Up - Side
1080.00 lb
490.00 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. The excavator bucket weight is not included on this chart. Lifting capacities 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
1632.00 lb
740.00 kg
Blade Down - Side
750.00 lb
340.00 kg
Blade Up - Front
904.00 lb
410.00 kg
Blade Up - Side
662.00 lb
300.00 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. The excavator bucket weight is not included on this chart. Lifting capacities are for machine with cab, optional counterweight and standard stick.

Operating Specifications

Machine Overhang
0.00 in
0.00 mm
Machine Overhang with Counterweight
5.00 in
115.00 mm
Stick Length - Long
61.00 in
1560.00 mm
Stick Length - Standard
50.00 in
1260.00 mm

Travel System

Gradeability - Continuous Operation
20°
Ground Pressure - Cab Long Stick
4.80 psi
33.00 kPa
Ground Pressure - Cab Standard Stick
4.70 psi
32.60 kPa
Ground Pressure - Canopy Long Stick
4.50 psi
30.80 kPa
Ground Pressure - Canopy Standard Stick
4.40 psi
30.40 kPa
Ground Pressure with Cab - Long Stick, Optional Counterweight
5.20 psi
35.60 kPa
Ground Pressure with Cab - Standard Stick, Optional Counterweight
5.10 psi
35.20 kPa
Ground Pressure with Canopy - Long Stick, Optional Counterweight
4.90 psi
33.50 kPa
Ground Pressure with Canopy - Standard Stick, Optional Counterweight
4.80 psi
33.00 kPa

Weights*

Note
*Weight includes counterweight, rubber tracks, bucket, operator, full fuel and auxiliary lines.
Operating Weight with Cab - Long Stick
7296.00 lb
3309.00 kg
Operating Weight with Cab - Long Stick, Optional Counterweight
7883.00 lb
3575.00 kg
Operating Weight with Cab - Standard Stick
7204.00 lb
3267.00 kg
Operating Weight with Cab - Standard Stick, Optional Counterweight
7790.00 lb
3533.00 kg
Operating Weight with Canopy - Long Stick
6813.00 lb
3090.00 kg
Operating Weight with Canopy - Long Stick, Optional Counterweight
7400.00 lb
3356.00 kg
Operating Weight with Canopy - Standard Stick
6721.00 lb
3048.00 kg
Operating Weight with Canopy - Standard Stick, Optional Counterweight
7307.00 lb
3314.00 kg

Engine

Note
Cat C1.3 engine meets U.S. EPA Tier 4 Final/EU Stage V emission standards.
Features

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.

Sales Features

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
  • 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
  • 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