The Caterpillar 305E2 CR is a compact mini excavator designed for construction, utility, landscaping, and site preparation work. It features a reduced tail swing design for operation in confined spaces, improving maneuverability near walls, roads, and other obstacles. The 305E2 CR is typically equipped with a Caterpillar diesel engine, hydraulic system, and operator cab or canopy options. Common attachments include buckets, augers, and hydraulic tools for versatile jobsite use. Its size, transportability, and digging capability make it suitable for small to medium excavation tasks where access and space are limited.
Air Conditioning System
Caterpillar 305E2 CR Mini Excavator Air Conditioning System specifications
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.
Blade
Caterpillar 305E2 CR Mini Excavator Blade specifications
Dig Depth
21.90 in (55.63 cm)
Height
14.80 in (37.59 cm)
Lift Height
15.90 in (40.39 cm)
Width
6.50 ft (1.98 m)
Cab
Caterpillar 305E2 CR Mini Excavator Cab specifications
Dynamic Operator Sound Pressure Level (Iso 6396:2008)
81 dB(A)
Exterior Sound Power Level - Iso 6395:2008*
96 dB(A)
Note
*European Union Directive 2000/14/EC
Certification - Cab And Canopy
Caterpillar 305E2 CR Mini Excavator Certification - Cab And Canopy specifications
Roll Over Protective Structure (Rops)
ISO 12117-2
Tip Over Protective Structure (Tops)
ISO 12117
Top Guard
ISO 10262 (Level I)
Dimensions - Long Stick
Caterpillar 305E2 CR Mini Excavator Dimensions - Long Stick specifications
Boom Height - Shipping Position
85.00 in (215.90 cm)
Boom In Reach
100.00 in (254.00 cm)
Boom Swing - Left
27.00 in (68.58 cm)
Boom Swing - Right
31.00 in (78.74 cm)
Dig Depth
144.00 in (365.76 cm)
Maximum Blade Depth
22.00 in (55.88 cm)
Maximum Blade Height
16.00 in (40.64 cm)
Maximum Dig Height
214.00 in (543.56 cm)
Maximum Dump Clearance
154.00 in (391.16 cm)
Maximum Reach
235.00 in (596.90 cm)
Maximum Reach - Ground Level
229.00 in (581.66 cm)
O/A Shipping Height
100.00 in (254.00 cm)
O/A Shipping Length
208.00 in (528.32 cm)
O/A Track Width
78.00 in (198.12 cm)
O/A Undercarriage Length
102.00 in (259.08 cm)
Swing Bearing - Height
24.00 in (60.96 cm)
Tail Swing
43.00 in (109.22 cm)
Track Belt/Shoe Width
16.00 in (40.64 cm)
Vertical Wall
104.00 in (264.16 cm)
Dimensions - Standard Stick
Caterpillar 305E2 CR Mini Excavator Dimensions - Standard Stick specifications
Boom Height - Shipping Position
69.00 in (175.26 cm)
Boom In Reach
93.00 in (236.22 cm)
Boom Swing - Left
27.00 in (68.58 cm)
Boom Swing - Right
31.00 in (78.74 cm)
Dig Depth
129.00 in (327.66 cm)
Maximum Blade Depth
22.00 in (55.88 cm)
Maximum Blade Height
16.00 in (40.64 cm)
Maximum Dig Height
207.00 in (525.78 cm)
Maximum Dump Clearance
129.00 in (327.66 cm)
Maximum Reach
220.00 in (558.80 cm)
Maximum Reach - Ground Level
210.00 in (533.40 cm)
O/A Shipping Height
100.00 in (254.00 cm)
O/A Shipping Length
204.00 in (518.16 cm)
O/A Track Width
78.00 in (198.12 cm)
O/A Undercarriage Length
102.00 in (259.08 cm)
Swing Bearing - Height
24.00 in (60.96 cm)
Tail Swing
43.00 in (109.22 cm)
Track Belt/Shoe Width
16.00 in (40.64 cm)
Vertical Wall
91.00 in (231.14 cm)
Engine
Caterpillar 305E2 CR Mini Excavator Engine specifications
Bore
3.40 in (8.64 cm)
Displacement
146.00 cu in (2,392.52 cu cm)
Emissions
Meets U.S. EPA Tier 4 Final/EU Stage IIIA emission standards.
Engine Model
Cat C2.4
Gross Power - Iso 14396
41.80 hp (31.17 kw)
Net Power
40.20 hp (29.98 kw)
Rated Net Power - 2,200 Rpm - Iso 9249/Eec 80/1269
40.20 hp (29.98 kw)
Stroke
4.00 in (10.16 cm)
Hydraulic System
Caterpillar 305E2 CR Mini Excavator Hydraulic System specifications
Auxiliary Circuit - Primary (186 Bar/2,734 Psi)
21.10 gpm (79.86 lpm)
Auxiliary Circuit - Secondary (174 Bar/2,524 Psi)
6.60 gpm (24.98 lpm)
Digging Force - Bucket
10,050.00 lbs (4,557.82 kg)
Digging Force - Stick - Long
4,788.00 lbs (2,171.43 kg)
Digging Force - Stick - Standard
5,550.00 lbs (2,517.01 kg)
Hydraulic System Type
Load Sensing Hydraulics with Variable Displacement Piston Pump
Operating Pressure - Equipment
3553 psi
Operating Pressure - Swing
3132 psi
Operating Pressure - Travel
3553 psi
Pump Flow At 2,400 Rpm
39.60 gpm (149.89 lpm)
Lift Capacities At Ground Level - Lift Point Radius: 3000 Mm (9'8”)
Caterpillar 305E2 CR Mini Excavator Lift Capacities At Ground Level - Lift Point Radius: 3000 Mm (9'8”) specifications
Blade Down - Front
5,159.00 lbs (2,339.68 kg)
Blade Down - Side
2,646.00 in (6,720.84 cm)
Blade Up - Front
3,197.00 lbs (1,449.89 kg)
Blade Up - Side
2,359.00 in (5,991.86 cm)
Lift Capacities At Ground Level - Lift Point Radius: 4000 Mm (13'1”)
Caterpillar 305E2 CR Mini Excavator Lift Capacities At Ground Level - Lift Point Radius: 4000 Mm (13'1”) specifications
Blade Down - Front
2,778.00 lbs (1,259.86 kg)
Blade Down - Side
1,411.00 lbs (639.91 kg)
Blade Up - Front
1,676.00 lbs (760.09 kg)
Blade Up - Side
1,257.00 lbs (570.07 kg)
Operating Specifications
Caterpillar 305E2 CR Mini Excavator Operating Specifications specifications
Stick Length - Long
67.00 in (170.18 cm)
Stick Length - Standard
52.00 in (132.08 cm)
Operational
Caterpillar 305E2 CR Mini Excavator Operational specifications
Operating Weight
11,443.00 lbs (5,189.57 kg)
Service Refill Capacities
Caterpillar 305E2 CR Mini Excavator Service Refill Capacities specifications
Cooling System
2.80 gal (10.60 l)
Engine Oil
2.50 gal (9.46 l)
Fuel Tank
16.60 gal (62.83 l)
Hydraulic System
20.60 gal (77.97 l)
Hydraulic Tank
18.00 gal (68.13 l)
Swing System
Caterpillar 305E2 CR Mini Excavator Swing System specifications
Boom Swing - Left - With Stop*
60 degrees
Boom Swing - Left - Without Stop*
80 degrees
Machine Swing Speed
10 rpm
Note
*Automatic swing brake, spring applied, hydraulic release.
Travel System
Caterpillar 305E2 CR Mini Excavator Travel System specifications
Gradeability - Maximum
30 degrees
Ground Pressure - Cab
4.4 psi
Ground Pressure - Canopy
4.3 psi
Maximum Traction Force - High Speed
5,418.00 lbs (2,457.14 kg)
Maximum Traction Force - Low Speed
10,161.00 lbs (4,608.16 kg)
Travel Speed - High
2.70 mph (4.35 kph)
Travel Speed - Low
1.70 mph (2.74 kph)
Undercarriage
Caterpillar 305E2 CR Mini Excavator Undercarriage specifications
Number Of Carrier Rollers
1
Number Of Track Rollers
4
Track Roller Type
Center Flange
Weights*
Caterpillar 305E2 CR Mini Excavator Weights* specifications
Note
*Weight includes counterweight, rubber tracks, bucket, operator, full fuel and auxiliary lines.
Weight - Cab, Long Stick
11,443.00 lbs (5,189.57 kg)
Weight - Cab, Standard Stick
11,334.00 lbs (5,140.14 kg)
Weight - Canopy, Long Stick
11,069.00 lbs (5,019.95 kg)
Weight - Canopy, Standard Stick
10,970.00 lbs (4,975.06 kg)
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