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303.5E2 CR Hydraulic Excavator

The Cat E2 Series Mini Hydraulic Excavators are designed to carry on the solid performance of their E Series predecessors, while adding even greater value for the customer. The new High Definition Hydraulic (HDH) System, redesigned operator station and enhanced digital control panel specially designed for Cat Mini Excavators – COMPASS (Complete, Operation, Maintenance, Performance And Security System) – are all standard features that improve performance and increase value.

Specifications
Equipment
Units: US Metric
Engine
Net Power
23.5 HP
17.5 kW
Engine Model
Cat® C1.7
Gross Power
24.8 HP
18.5 kW
Weights
Operating Weight
8209 lb
3723 kg
Operating Weight - With Cab
8209 lb
3723 kg
Engine
Bore
3.4 in
87 mm
Displacement
104 in³
1.7 l
Stroke
3.6 in
92.4 mm
Travel System
Travel Speed - Low
2 mile/h
3.2 km/h
Maximum Traction Force - High Speed
3822 lbf
17 kN
Travel Speed - High
2.9 mile/h
4.6 km/h
Maximum Traction Force - Low Speed
6992 lbf
31.1 kN
Hydraulic System
Operating Pressure - Equipment
3553 psi
245 bar
Digging Force - Stick - Standard
4249 lbf
18.9 kN
Pump Flow at 2,200 rpm
26.4 gal/min
100 l/min
Operating Pressure - Travel
3553 psi
245 bar
Operating Pressure - Swing
3132 psi
216 bar
Digging Force - Stick - Long
3799 lbf
16.9 kN
Type
Load Sensing Hydraulics with Variable Displacement Piston Pump
Note
Flow and pressure are not combinable. Under load, as flow rises pressure goes down.
Maximum Auxiliary Circuit - Secondary - Flow at Pump
6.6 gal/min
25 l/min
Maximum Auxiliary Circuit - Primary - Pressure at Pump
3553 psi
24500 kPa
Maximum Auxiliary Circuit - Primary - Flow at Pump
15.9 gal/min
60 l/min
Maximum Auxiliary Circuit - Secondary - Pressure at Pump
3553 psi
24500 kPa
Swing System
Machine Swing Speed
10 r/min
10 r/min
Boom Swing - Left - With Stop
55°
Swing - Right
50°
Boom Swing - Left - Without Stop
80°
Blade
Width
70 in
1780 mm
Height
13 in
325 mm
Dig Depth
19 in
470 mm
Lift Height
16 in
400 mm
Service Refill Capacities
Cooling System
1.5 gal (US)
5.5 l
Engine Oil
1.8 gal (US)
7 l
Hydraulic Tank
11.2 gal (US)
42.3 l
Fuel Tank
12.2 gal (US)
46 l
Hydraulic System
17.2 gal (US)
65 l
Operating Specifications
Maximum Dig Depth
125 in
3180 mm
Travel System
Ground Pressure
4.6 psi
31.7 kPa
Engine
Rated Net Power - ISO 9249
23.5 HP
17.5 kW
Net Power - ISO 9249
23.5 HP
17.5 kW
Note
Cat C1.7 engine meets U.S. EPA Tier 4 Final/EU Stage IIIB emission standards.
Weights
Operating Weight - With Canopy
7803 lb
3539 kg
Note
Weight includes rubber tracks, bucket, operator, full fuel and auxiliary lines.
Hydraulic System
Digging Force - Bucket
7419 lbf
33 kN
Standard Equipment
ENGINE
HYDRAULIC SYSTEM
OPERATOR ENVIRONMENT
UNDERCARRIAGE
FRONT LINKAGE
ELECTRICAL
LIGHTS AND MIRRORS
SAFETY AND SECURITY