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305.5E2 CR Mini Hydraulic Excavator

The Cat® 305.5E2 CR Mini Hydraulic Excavator delivers high performance, durability and versatility in a compact design to help you work in a variety of applications.

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Specifications
Equipment
Units: US Metric
Engine
Net Power
44.1 HP
32.9 kW
Engine Model
Cat® C2.4
Net Power - 2,200 rpm - ISO 9249/EEC 80/1269
44.1 HP
32.9 kW
Weights*
Operating Weight
11958 lb
5423 kg
Weight - Canopy, Standard Stick
11503 lb
5217 kg
Engine
Bore
3.4 in
87 mm
Stroke
4 in
102.4 mm
Displacement
146 in³
2.4 l
Travel System
Travel Speed - High
2.8 mile/h
4.5 km/h
Maximum Traction Force - High Speed
6025 lb
26.8 kN
Travel Speed - Low
1.7 mile/h
2.8 km/h
Maximum Traction Force - Low Speed
10746 lb
47.8 kN
Hydraulic System
Operating Pressure - Travel
3553 psi
245 bar
Digging Force - Stick - Long
5575 lb
24.8 kN
Operating Pressure - Swing
3132 psi
216 bar
Operating Pressure - Equipment
3553 psi
245 bar
Digging Force - Stick - Standard
6500 lb
28.9 kN
Pump Flow at 2,400 rpm
39.6 gal/min
150 l/min
Maximum Auxiliary Circuit - Primary - Pressure
3553 psi
24500 kPa
Maximum Auxiliary Circuit - Secondary - Pressure
3553 psi
24500 kPa
Maximum Auxiliary Circuit - Secondary - Flow
6.6 gal/min
25 l/min
Maximum Auxiliary Circuit - Primary - Flow
21.1 gal/min
80 l/min
Swing System
Machine Swing Speed
10 r/min
10 r/min
Boom Swing - Right
50°
Boom Swing - Left - Without Stop*
80°
Boom Swing - Left - With Stop*
60°
Blade
Width
78 in
1980 mm
Height
14.8 in
375 mm
Dig Depth
21.9 in
555 mm
Lift Height
15.9 in
405 mm
Service Refill Capacities
Hydraulic Tank
18 gal (US)
68.3 l
Cooling System
2.8 gal (US)
10.5 l
Fuel Tank
16.6 gal (US)
63 l
Engine Oil
2.5 gal (US)
9.5 l
Hydraulic System
20.6 gal (US)
78 l
Dimensions - Long Stick
Dig Depth
152 in
3870 mm
Operating Specifications
Stick Length - Long
70 in
1820 mm
Dimensions - Standard Stick
Boom In Reach
94 in
2400 mm
Weights*
Weight - Cab, Long Stick
11958 lb
5423 kg
Dimensions - Standard Stick
O/A Shipping Height
100 in
2550 mm
Travel System
Ground Pressure - Canopy
4.5 psi
31 kPa
Undercarriage
Number of Carrier Rollers
1
Lift Capacities at Ground Level - Lift Point Radius: 3000 mm (9'8”)
Blade Up - Front
3417 lb
1550 kg
Lift Capacities at Ground Level - Lift Point Radius: 4500 mm (14'9”)
Blade Down - Front
3042 lb
1380 kg
Lift Capacities at Ground Level - Lift Point Radius: 3000 mm (9'8”)
Blade Up - Side
2535 lb
1150 kg
Dimensions - Long Stick
Boom Swing - Right
31 in
785 mm
O/A Shipping Length
215 in
5460 mm
Undercarriage
Track Roller Type
Center Flange
Dimensions - Long Stick
Vertical Wall
107 in
2730 mm
O/A Shipping Height
100 in
2550 mm
Weights*
Note
*Weight includes counterweight, rubber tracks, bucket, operator, full fuel and auxiliary lines.
Operating Specifications
Counterweight
364.4 lb
165.3 kg
Dimensions - Long Stick
Maximum Blade Depth
22 in
555 mm
Dimensions - Standard Stick
Dig Depth
137 in
3470 mm
Maximum Blade Depth
22 in
555 mm
Track Belt/Shoe Width
16 in
400 mm
O/A Undercarriage Length
102 in
2580 mm
Maximum Blade Height
16 in
405 mm
O/A Shipping Length
210 in
5330 mm
Maximum Reach - Ground Level
222 in
5630 mm
Operating Specifications
Stick Length - Standard
55 in
1420 mm
Dimensions - Long Stick
Maximum Dump Clearance
161 in
4080 mm
Lift Capacities at Ground Level - Lift Point Radius: 4500 mm (14'9”)
Blade Up - Side
1367 lb
620 kg
Dimensions - Long Stick
Maximum Reach - Ground Level
237 in
6020 mm
Lift Capacities at Ground Level - Lift Point Radius: 4500 mm (14'9”)
Blade Up - Front
1808 lb
820 kg
Lift Capacities at Ground Level - Lift Point Radius: 3000 mm (9'8”)
Blade Down - Side
2844 lb
1290 kg
Weights*
Weight - Cab, Standard Stick
11863 lb
5380 kg
Dimensions - Standard Stick
Boom Swing - Right
31 in
785 mm
Dimensions - Long Stick
Maximum Blade Height
16 in
405 mm
Tail Swing
44 in
1130 mm
Swing Bearing - Height
24 in
615 mm
Lift Capacities at Ground Level - Lift Point Radius: 4500 mm (14'9”)
Blade Down - Side
1521 lb
690 kg
Dimensions - Standard Stick
Maximum Dig Height
210 in
5330 mm
Dimensions - Long Stick
Maximum Dig Height
220 in
5590 mm
Boom Swing - Left
27 in
695 mm
Dimensions - Standard Stick
Vertical Wall
92 in
2330 mm
Certification - Cab and Canopy
Tip Over Protective Structure (TOPS)
ISO 12117
Cab
Dynamic Operator Sound Pressure Level (ISO 6396:2008)
81 dB(A)
81 dB(A)
Dimensions - Long Stick
Track Belt/Shoe Width
16 in
400 mm
Travel System
Ground Pressure - Cab
4.6 psi
31.9 kPa
Dimensions - Standard Stick
Tail Swing
44 in
1130 mm
Weights*
Weight - Canopy, Long Stick
11596 lb
5259 kg
Dimensions - Long Stick
Maximum Reach
243 in
6170 mm
Dimensions - Standard Stick
Boom Height - Shipping Position
69 in
1740 mm
Boom Swing - Left
27 in
695 mm
O/A Track Width
78 in
1980 mm
Maximum Dump Clearance
150 in
3820 mm
Travel System
Gradeability - Maximum
30°
Certification - Cab and Canopy
Top Guard
ISO 10262 (Level I)
Dimensions - Long Stick
O/A Track Width
78 in
1980 mm
Dimensions - Standard Stick
Swing Bearing - Height
24 in
615 mm
Dimensions - Long Stick
Boom In Reach
100 in
2530 mm
Dimensions - Standard Stick
Maximum Reach
228 in
5790 mm
Engine
Gross Power - ISO 14396
45.7 HP
34.1 kW
Cab
Note
*European Union Directive “2000/14/EC”
Exterior Sound Power Level - ISO 6395:2008*
97 dB(A)
97 dB(A)
Dimensions - Long Stick
O/A Undercarriage Length
102 in
2580 mm
Swing System
Note
*Automatic swing brake, spring applied, hydraulic release.
Engine
Emissions
Meets U.S. EPA Tier 4 Final/EU Stage IIIA emission standards.
Dimensions - Long Stick
Boom Height - Shipping Position
85 in
2150 mm
Lift Capacities at Ground Level - Lift Point Radius: 3000 mm (9'8”)
Blade Down - Front
5710 lb
2590 kg
Air Conditioning System
Air Conditioning
The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a (Global Warming Potential = 1430). The system contains 1.0 kg of refrigerant which has a CO2 equivalent of 1.4 metric tonnes.
Hydraulic System
Digging Force - Bucket
11445 lb
50.9 kN
Certification - Cab and Canopy
Roll Over Protective Structure (ROPS)
ISO 12117-2
Hydraulic System
Type
Load Sensing Hydraulics with Variable Displacement Piston Pump
Undercarriage
Number of Track Rollers
4
Standard Equipment
ENGINE
HYDRAULIC SYSTEM
OPERATOR ENVIRONMENT
UNDERCARRIAGE
FRONT LINKAGE
ELECTRICAL
LIGHTS AND MIRRORS
SAFETY AND SECURITY
TECHNOLOGY