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.

Engine Model
Cat C1.3
Net Power
23.5 hp
Operating Weight with Canopy
7297 lb
Gross Power – ISO 14396
24.8 hp

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
23.5mm H2O
Gross Power
24.8hp
Engine Model
Cat C1.3
Net Power
23.5mm H2O
Gross Power - ISO 14396
24.8mm H2O
Bore
3.1in
Displacement
77in³
Stroke
3.5in
Gross Power
24.8mm H2O

Weights

Operating Weight with Canopy
7297lb
Operating Weight - With Cab
7782lb
Note
Weight includes counterweight, rubber tracks, bucket, operator, full fuel and auxiliary lines.
Operating Weight - With Canopy
7297lb
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
Digging Force – Bucket
6384lb
Type
Load Sensing Hydraulics with Variable Displacement Piston Pump
Operating Pressure - Equipment
3553psi
Operating Pressure - Travel
3553psi
Operating Pressure - Swing
2625psi
Digging Force - Stick - Standard
3731lb
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
6384lb
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
11.8gal (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
3417lb
Maximum Traction Force - Low Speed
6946lb
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°

Certification - Cab and Canopy

Roll Over Protective Structure (ROPS)
ISO 12117-2
Tip Over Protective Structure (TOPS)
ISO 12117
Top Guard
ISO 10262 (Level I)

Dimensions (Approximate)

Dig Depth
108in
Vertical Wall
77in
O/A Shipping Length
176in
Maximum Reach - Ground Level
189in
Boom Swing - Right
32in
Maximum Reach
195in
Boom Swing - Left
24in
Maximum Dig Height
178in
Track Belt/Shoe Width
12in
Maximum Dump Clearance
124in
O/A Track Width
60in
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
Dig Depth
108in
Maximum Reach
195in

Undercarriage

Number of Carrier Rollers
3
Number of Track Rollers
3
Track Roller Type
Double Flange

Standard Equipment:

Optional Equipment: