303.5 CR Mini Hydraulic Excavator
The Cat® 303.5 CR Mini Excavator delivers power and performance in a compact size to help you work in a wide range of applications.
Specifications
Equipment
Product Brochures
Attachments
Units:
Engine
Net Power
23.6 hp
17.6 kW
Weights
Operating Weight
9239 lb
4190 kg
Dimensions - Long Stick
Dig Depth
122.4 in
3110 mm
Engine
Engine Model
C1.7
Blade
Height
13.8 in
350 mm
Dimensions - Long Stick
Track Belt/Shoe Width
11.8 in
300 mm
Dimensions - Standard Stick
Boom Swing - Right
34.3 °
870 mm
Engine
Bore
3.3 in
84 mm
Dimensions - Standard Stick
Tail Swing with Counterweight
37.8 in
960 mm
Dimensions - Long Stick
Maximum Reach
216.9 in
5510 mm
Weights
Minimum Operating Weight with Canopy*
7673 lb
3480 kg
Weight Increase from Minimum Configuration
Cab
309 lb
140 kg
Service Refill Capacities
Fuel Tank
11.9 gal (US)
45 l
Dimensions - Long Stick
O/A Track Width
70.1 in
1780 mm
Travel System
Ground Pressure - Minimum Weight
4.3 psi
29.6 kPa
Maximum Traction Force - High Speed
3799 lbf
16.9 kN
Dimensions - Standard Stick
Stick Length
49.6 in
1260 mm
Hydraulic System
Pump Flow at 2,400 rpm
26 gal/min
100 l/min
Engine
Net Power @ 2,200 rpm - U.S. EPA Tier 4 Final/EU Stage V - ISO 9249/EEC 80/1269
23.6 hp
17.6 kW
Dimensions - Long Stick
Maximum Blade Depth
21.1 in
535 mm
Service Refill Capacities
Hydraulic Tank
5.3 gal (US)
20 l
Travel System
Maximum Traction Force - Low Speed
6969 lbf
31 kN
Dimensions - Long Stick
Tail Swing without Counterweight
35 in
890 mm
Dimensions - Standard Stick
Maximum Reach - Ground Level
202 in
5130 mm
Hydraulic System
Auxiliary Circuit - Primary - Flow
18 gal/min
70 l/min
Dimensions - Standard Stick
Boom Swing - Left
25.2 °
640 mm
Maximum Reach
207.5 in
5270 mm
Track Belt/Shoe Width
11.8 in
300 mm
Weight Increase from Minimum Configuration
Counterweight
221 lb
100 kg
Dimensions - Standard Stick
Maximum Dump Clearance
137.4 in
3490 mm
Swing Bearing - Height
22.2 in
565 mm
Sound
Note
European Union Directive ‚ "2000/14/EC"
Dimensions - Long Stick
Stick Length
61.4 in
1560 mm
Travel System
Travel Speed - High
2.8 mile/h
4.5 km/h
Dimensions - Standard Stick
Boom Height - Shipping Position
59.8 in
1520 mm
Dimensions - Long Stick
Swing Bearing - Height
22.2 in
565 mm
Weights
EU: CE Plate Weight with Cab***
8004 lb
3630 kg
Hydraulic System
Operating Pressure - Swing
2625 psi
181 bar
Weights
Note (3)
***CE Plate Weight is based on the most common EU configuration. Includes 75 kg (165 lb) operator and full fuel tank and excludes bucket.
Weight Increase from Minimum Configuration
Steel Tracks
287 lb
130 kg
Weights
Maximum Operating Weight with Cab**
9239 lb
4190 kg
Engine
Displacement
104 in³
1.7 l
Sound
Operator Sound Pressure (ISO 6396:2008)
78 dB(A)
78 dB(A)
Dimensions - Long Stick
Boom Swing - Left
640 mm
25.2 °
Overall Shipping Length*
190.9 in
4850 mm
Hydraulic System
Type
Load Sensing Hydraulics with Variable Displacement Piston Pump
Auxiliary Circuit - Secondary - Pressure
3553 psi
245 bar
Swing System
Machine Swing Speed
9 r/min
9 r/min
Weights
Maximum Operating Weight with Canopy**
8930 lb
4050 kg
Dimensions - Long Stick
Maximum Reach - Ground Level
211.8 in
5380 mm
Maximum Dump Clearance
141.7 in
3600 mm
Tail Swing with Counterweight
37.8 in
960 mm
Hydraulic System
Digging Force - Stick - Long
3799 lbf
16.9 kN
Dimensions - Standard Stick
O/A Shipping Height
97.6 in
2480 mm
Overall Shipping Length*
189 in
4800 mm
Travel System
Gradeability - Maximum
30 degrees
Dimensions - Standard Stick
Boom In Reach
69.3 in
1760 mm
Engine
Note
Net power is tested per ISO 9249 and 80/1269/EEC.
Dimensions - Long Stick
O/A Shipping Height
97.6 in
2480 mm
Hydraulic System
Auxiliary Circuit - Secondary - Flow
7 gal/min
25 l/min
Dimensions - Standard Stick
Note
*Overall Shipping Length depends on blade position during shipment.
Tail Swing with Extra Counterweight
39.6 in
1005 mm
Engine
Gross Power - 2,400 rpm - SAE J1995
24.7 hp
18.4 kW
Weights
EU: CE Plate Weight with Canopy***
7784 lb
3530 kg
Dimensions - Standard Stick
Maximum Dig Height
193.7 in
4920 mm
Travel System
Travel Speed - Low
1.6 mile/h
2.6 km/h
Hydraulic System
Digging Force - Bucket
7419 lbf
33 kN
Dimensions - Long Stick
Note
*Overall Shipping Length depends on blade position during shipment.
Hydraulic System
Operating Pressure - Travel
3553 psi
245 bar
Dimensions - Standard Stick
Vertical Wall
88.6 in
2250 mm
Weights
Minimum Operating Weight with Cab*
7982 lb
3620 kg
Hydraulic System
Operating Pressure - Equipment
3553 psi
245 bar
Dimensions - Long Stick
Boom In Reach
73.2 in
1860 mm
Maximum Dig Height
197.6 in
5020 mm
Weight Increase from Minimum Configuration
Long Stick
44 lb
20 kg
Weights
Note (1)
* Minimum Weight is based on fixed rubber tracks, operator, full fuel tank, standard stick, blade, bucket and no extra counterweight.
Dimensions - Standard Stick
Dig Depth
110.6 in
2810 mm
Dimensions (Approximate) - Standard Stick
Tail Swing with Extra Counterweight
39.6 in
1005 mm
Certification - Cab and Canopy
Roll Over Protective Structure (ROPS)
ISO 12117-2:2008
Service Refill Capacities
Cooling System
1.8 gal (US)
7 l
Dimensions - Long Stick
Vertical Wall
94.1 in
2390 mm
Service Refill Capacities
Engine Oil
1.6 gal (US)
6 l
Dimensions - Standard Stick
O/A Undercarriage Length
87.4 in
2220 mm
Sound
Average Exterior Sound Pressure (ISO 6395:2008)
94 dB(A)
94 dB(A)
Weights
Note (2)
**Maximum Weight is based on steel tracks, operator, full fuel tank, long stick, blade, bucket and extra counterweight.
Service Refill Capacities
Hydraulic System
11.9 gal (US)
45 l
Hydraulic System
Auxiliary Circuit - Primary - Pressure
3553 psi
245 bar
Engine
Emissions
Meets U.S. EPA Tier 4 Final and EU Stage V emission standards.
Dimensions - Long Stick
Boom Height - Shipping Position
68.9 in
1750 mm
Dimensions - Standard Stick
Tail Swing without Counterweight
35 in
890 mm
Maximum Blade Depth
21.1 in
535 mm
Hydraulic System
Digging Force - Stick - Standard
4249 lbf
18.9 kN
Dimensions - Long Stick
Maximum Blade Height
15.2 in
385 mm
Certification - Cab and Canopy
Tip Over Protective Structure (TOPS)
ISO 12117:1997
Dimensions - Standard Stick
Maximum Blade Height
15.2 in
385 mm
Travel System
Ground Pressure - Maximum Weight
5.2 psi
35.7 kPa
Dimensions - Long Stick
O/A Undercarriage Length
87.4 in
2220 mm
Boom Swing - Right
34.3 °
870 mm
Dimensions (Approximate) - Long Stick
Tail Swing with Extra Counterweight
39.6 in
1005 mm
Engine
Note (2)
Net power advertised is the power available at the flywheel when the engine is at rated speed and rated power when the engine is installed with the factory configured fan, air intake system, exhaust system, and alternator with a minimum alternator load.
Certification - Cab and Canopy
Top Guard
ISO 10262:1998 (Level I)
Engine
Stroke
3.9 in
100 mm
Sustainability
Recyclability
95%
Weight Increase from Minimum Configuration
Angle Blade
353 lb
160 kg
Dimensions - Long Stick
Ground Clearance
12.2 in
310 mm
Blade
Width
70.1 in
1780 mm
Hydraulic System
Note
*Flow and pressure are not combinable. Under load, as flow rises pressure goes down.
Swing System
Boom Swing - Right
50 °
50 °
Boom Swing - Left
75 °
75 °
Dimensions - Standard Stick
Ground Clearance
12.2 in
310 mm
Weight Increase from Minimum Configuration
Extra Counterweight
551 lb
250 kg
Standard Equipment
ENGINE
HYDRAULICS
OPERATOR ENVIRONMENT
UNDERCARRIAGE
BOOM, STICK AND LINKAGES
ELECTRICAL
Brochures
