303.5 CR Mini Hydraulic Excavator

Overview

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.

Cat Exclusives in a Mini Excavator

with more common parts, lower repair costs and tilt up cab

with programmable operator settings and faster cyle times

Net Power	23.6 hp
Engine Model	C1.7
Bore	3.3 in
Net Power @ 2,200 rpm - U.S. EPA Tier 4 Final/EU Stage V - ISO 9249/EEC 80/1269	23.6 hp
Displacement	104 in³
Note	Net power is tested per ISO 9249 and 80/1269/EEC.
Gross Power - 2,400 rpm - SAE J1995	24.7 hp
Emissions	Meets U.S. EPA Tier 4 Final and EU Stage V emission standards.
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.
Stroke	3.9 in

Operating Weight	9239 lb
Minimum Operating Weight with Canopy*	7673 lb
EU: CE Plate Weight with Cab***	8004 lb
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.
Maximum Operating Weight with Cab**	9239 lb
Maximum Operating Weight with Canopy**	8930 lb
EU: CE Plate Weight with Canopy***	7784 lb
Minimum Operating Weight with Cab*	7982 lb
Note (1)	* Minimum Weight is based on fixed rubber tracks, operator, full fuel tank, standard stick, blade, bucket and no extra counterweight.
Note (2)	**Maximum Weight is based on steel tracks, operator, full fuel tank, long stick, blade, bucket and extra counterweight.

Dig Depth	122.4 in
Track Belt/Shoe Width	11.8 in
Maximum Reach	216.9 in
O/A Track Width	70.1 in
Maximum Blade Depth	21.1 in
Tail Swing without Counterweight	35 in
Stick Length	61.4 in
Swing Bearing - Height	22.2 in
Boom Swing - Left	640 mm
Overall Shipping Length*	190.9 in
Maximum Reach - Ground Level	211.8 in
Maximum Dump Clearance	141.7 in
Tail Swing with Counterweight	37.8 in
O/A Shipping Height	97.6 in
Note	*Overall Shipping Length depends on blade position during shipment.
Boom In Reach	73.2 in
Maximum Dig Height	197.6 in
Vertical Wall	94.1 in
Boom Height - Shipping Position	68.9 in
Maximum Blade Height	15.2 in
O/A Undercarriage Length	87.4 in
Boom Swing - Right	34.3 °
Ground Clearance	12.2 in

Height	13.8 in
Width	70.1 in

Boom Swing - Right	34.3 °
Tail Swing with Counterweight	37.8 in
Stick Length	49.6 in
Maximum Reach - Ground Level	202 in
Boom Swing - Left	25.2 °
Maximum Reach	207.5 in
Track Belt/Shoe Width	11.8 in
Maximum Dump Clearance	137.4 in
Swing Bearing - Height	22.2 in
Boom Height - Shipping Position	59.8 in
O/A Shipping Height	97.6 in
Overall Shipping Length*	189 in
Boom In Reach	69.3 in
Note	*Overall Shipping Length depends on blade position during shipment.
Tail Swing with Extra Counterweight	39.6 in
Maximum Dig Height	193.7 in
Vertical Wall	88.6 in
Dig Depth	110.6 in
O/A Undercarriage Length	87.4 in
Tail Swing without Counterweight	35 in
Maximum Blade Depth	21.1 in
Maximum Blade Height	15.2 in
Ground Clearance	12.2 in

Ground Pressure - Minimum Weight	4.3 psi
Maximum Traction Force - High Speed	3799 lbf
Maximum Traction Force - Low Speed	6969 lbf
Travel Speed - High	2.8 mile/h
Gradeability - Maximum	30 degrees
Travel Speed - Low	1.6 mile/h
Ground Pressure - Maximum Weight	5.2 psi

Pump Flow at 2,400 rpm	26 gpm
Auxiliary Circuit - Primary - Flow	18 gpm
Operating Pressure - Swing	2625 psi
Type	Load Sensing Hydraulics with Variable Displacement Piston Pump
Auxiliary Circuit - Secondary - Pressure	3553 psi
Digging Force - Stick - Long	3799 lbf
Auxiliary Circuit - Secondary - Flow	7 gpm
Digging Force - Bucket	7419 lbf
Operating Pressure - Travel	3553 psi
Operating Pressure - Equipment	3553 psi
Auxiliary Circuit - Primary - Pressure	3553 psi
Digging Force - Stick - Standard	4249 lbf
Note	*Flow and pressure are not combinable. Under load, as flow rises pressure goes down.