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.
Engine | |
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Engine Model | Cat® C2.4 |
Net Power | 44.1 HP / 32.9 kW |
Rated Net Power - 2,200 rpm - ISO 9249/EEC 80/1269 | 44.1 HP / 32.9 kW |
Bore | 3.4 in / 87 mm |
Displacement | 146 in³ / 2.4 l |
Stroke | 4 in / 102.4 mm |
Emissions | Meets U.S. EPA Tier 4 Final/EU Stage IIIA emission standards. |
Gross Power - ISO 14396 | 45.7 HP / 34.1 kW |
Weights* | |
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Operating Weight | 11958 lb / 5423 kg |
Weight - Canopy, Standard Stick | 11503 lb / 5217 kg |
Note | *Weight includes counterweight, rubber tracks, bucket, operator, full fuel and auxiliary lines. |
Weight - Cab, Long Stick | 11958 lb / 5423 kg |
Weight - Cab, Standard Stick | 11863 lb / 5380 kg |
Weight - Canopy, Long Stick | 11596 lb / 5259 kg |
Travel System | |
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Maximum Traction Force - High Speed | 6025 lb / 26.8 kN |
Maximum Traction Force - Low Speed | 10746 lb / 47.8 kN |
Travel Speed - High | 2.8 mile/h / 4.5 km/h |
Travel Speed - Low | 1.7 mile/h / 2.8 km/h |
Gradeability - Maximum | 30° |
Ground Pressure - Cab | 4.6 psi / 31.9 kPa |
Ground Pressure - Canopy | 4.5 psi / 31 kPa |
Hydraulic System | |
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Auxiliary Circuit - Primary (186 bar/2,734 psi) | 21.1 gal/min / 80 l/min |
Auxiliary Circuit - Secondary (174 bar/2,524 psi) | 6.6 gal/min / 25 l/min |
Digging Force - Stick - Long | 5575 lb / 24.8 kN |
Digging Force - Stick - Standard | 6500 lb / 28.9 kN |
Operating Pressure - Equipment | 3553 psi / 245 bar |
Operating Pressure - Swing | 3132 psi / 216 bar |
Operating Pressure - Travel | 3553 psi / 245 bar |
Pump Flow at 2,400 rpm | 39.6 gal/min / 150 l/min |
Digging Force - Bucket | 11445 lb / 50.9 kN |
Type | Load Sensing Hydraulics with Variable Displacement Piston Pump |
Swing System | |
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Machine Swing Speed | 10 r/min |
Boom Swing - Left - With Stop* | 60° |
Boom Swing - Left - Without Stop* | 80° |
Boom Swing - Right | 50° |
Note | *Automatic swing brake, spring applied, hydraulic release. |
Blade | |
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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 | |
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Cooling System | 2.8 gal (US) / 10.5 l |
Engine Oil | 2.5 gal (US) / 9.5 l |
Fuel Tank | 16.6 gal (US) / 63 l |
Hydraulic System | 20.6 gal (US) / 78 l |
Hydraulic Tank | 18 gal (US) / 68.3 l |
Air Conditioning System | |
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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. |
Cab | |
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Dynamic Operator Sound Pressure Level (ISO 6396:2008) | 81 dB(A) |
Exterior Sound Power Level - ISO 6395:2008* | 97 dB(A) |
Note | *European Union Directive “2000/14/EC” |
Certification - Cab and Canopy | |
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Roll Over Protective Structure (ROPS) | ISO 12117-2 |
Tip Over Protective Structure (TOPS) | ISO 12117 |
Top Guard | ISO 10262 (Level I) |
Dimensions - Long Stick | |
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Boom Height - Shipping Position | 85 in / 2150 mm |
Boom In Reach | 100 in / 2530 mm |
Boom Swing - Left | 27 in / 695 mm |
Boom Swing - Right | 31 in / 785 mm |
Dig Depth | 152 in / 3870 mm |
Maximum Blade Depth | 22 in / 555 mm |
Maximum Blade Height | 16 in / 405 mm |
Maximum Dig Height | 220 in / 5590 mm |
Maximum Dump Clearance | 161 in / 4080 mm |
Maximum Reach | 243 in / 6170 mm |
Maximum Reach - Ground Level | 237 in / 6020 mm |
O/A Shipping Height | 100 in / 2550 mm |
O/A Shipping Length | 215 in / 5460 mm |
O/A Track Width | 78 in / 1980 mm |
O/A Undercarriage Length | 102 in / 2580 mm |
Swing Bearing - Height | 24 in / 615 mm |
Tail Swing | 44 in / 1130 mm |
Track Belt/Shoe Width | 16 in / 400 mm |
Vertical Wall | 107 in / 2730 mm |
Dimensions - Standard Stick | |
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Boom Height - Shipping Position | 69 in / 1740 mm |
Boom In Reach | 94 in / 2400 mm |
Boom Swing - Left | 27 in / 695 mm |
Boom Swing - Right | 31 in / 785 mm |
Dig Depth | 137 in / 3470 mm |
Maximum Blade Depth | 22 in / 555 mm |
Maximum Blade Height | 16 in / 405 mm |
Maximum Dig Height | 210 in / 5330 mm |
Maximum Dump Clearance | 150 in / 3820 mm |
Maximum Reach | 228 in / 5790 mm |
Maximum Reach - Ground Level | 222 in / 5630 mm |
O/A Shipping Height | 100 in / 2550 mm |
O/A Shipping Length | 210 in / 5330 mm |
O/A Track Width | 78 in / 1980 mm |
O/A Undercarriage Length | 102 in / 2580 mm |
Swing Bearing - Height | 24 in / 615 mm |
Tail Swing | 44 in / 1130 mm |
Track Belt/Shoe Width | 16 in / 400 mm |
Vertical Wall | 92 in / 2330 mm |
Lift Capacities at Ground Level - Lift Point Radius: 3000 mm (9'8”) | |
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Blade Down - Front | 5710 lb / 2590 kg |
Blade Down - Side | 2844 lb / 1290 kg |
Blade Up - Front | 3417 lb / 1550 kg |
Blade Up - Side | 2535 lb / 1150 kg |
Lift Capacities at Ground Level - Lift Point Radius: 4500 mm (14'9”) | |
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Blade Down - Front | 3042 lb / 1380 kg |
Blade Down - Side | 1521 lb / 690 kg |
Blade Up - Front | 1808 lb / 820 kg |
Blade Up - Side | 1367 lb / 620 kg |
Operating Specifications | |
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Counterweight | 364.4 lb / 165.3 kg |
Stick Length - Long | 70 in / 1820 mm |
Stick Length - Standard | 55 in / 1420 mm |
Undercarriage | |
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Number of Carrier Rollers | 1 |
Number of Track Rollers | 4 |
Track Roller Type | Center Flange |
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