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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SPECIFICATION SUMMARY
- Engine Model Cat® C2.4
- Net Power 44.1 hp
- Weight – Canopy, Standard Stick 11503 lb
- Rated Net Power @ 2,200 rpm – ISO 9249/EEC 80/1269 44.1 hp
Engine
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Engine ModelCat® C2.4
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Net Power44.1 hp
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Rated Net Power @ 2,200 rpm – ISO 9249/EEC 80/126944.1 hp
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Bore3.4 in
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Stroke4 in
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Displacement146 in3
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Gross Power – ISO 1439645.7 hp
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EmissionsMeets U.S. EPA Tier 4 Final/EU Stage IIIA emission standards.
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Engine ModelCat® C2.4
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Net Power44.1 HP
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Net Power - 2,200 rpm - ISO 9249/EEC 80/126944.1 HP
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Bore3.4 in
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Displacement146 in³
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Stroke4 in
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EmissionsMeets U.S. EPA Tier 4 Final/EU Stage IIIA emission standards.
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Gross Power - ISO 1439645.7 HP
Weights*
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Weight – Canopy, Standard Stick11503 lb
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Operating Weight11958 lb
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Weight – Canopy, Long Stick11596 lb
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Weight – Cab, Standard Stick11863 lb
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Weight – Cab, Long Stick11958 lb
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Note*Weight includes counterweight, rubber tracks, bucket, operator, full fuel and auxiliary lines.
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Weight - Canopy, Standard Stick11503 lb
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Note*Weight includes counterweight, rubber tracks, bucket, operator, full fuel and auxiliary lines.
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Weight - Cab, Long Stick11958 lb
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Weight - Cab, Standard Stick11863 lb
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Weight - Canopy, Long Stick11596 lb
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Note11596 lb
Hydraulic System
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Pump Flow at 2,400 rpm39.6 gal/min
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Auxiliary Circuit – Primary (186 bar/2,734 psi)21.1 gal/min
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Auxiliary Circuit – Secondary (174 bar/2,524 psi)6.6 gal/min
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Operating Pressure - Equipment3553 psi
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Operating Pressure - Travel3553 psi
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Operating Pressure - Swing3132 psi
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Digging Force - Stick - Standard6500 lb
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Digging Force - Stick - Long5575 lb
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Digging Force – Bucket11445 lb
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TypeLoad Sensing Hydraulics with Variable Displacement Piston Pump
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Auxiliary Circuit - Primary (186 bar/2,734 psi)21.1 gal/min
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Auxiliary Circuit - Secondary (174 bar/2,524 psi)6.6 gal/min
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Pump Flow at 2,400 rpm39.6 gal/min
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Digging Force - Bucket11445 lb
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TypeLoad Sensing Hydraulics with Variable Displacement Piston Pump
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Maximum Auxiliary Circuit - Primary - Flow21.1 gal/min
Swing System
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Machine Swing Speed10 rpm
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Boom Swing – Left* (without stop)80°
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Boom Swing – Left* (with stop)60°
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Boom Swing – Right50°
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Note*Automatic swing brake, spring applied, hydraulic release.
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Machine Swing Speed10 r/min
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Boom Swing - Left - With Stop*60°
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Boom Swing - Left - Without Stop*80°
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Boom Swing - Right50°
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Note*Automatic swing brake, spring applied, hydraulic release.
Blade
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Width78.0 in
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Height14.8 in
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Dig Depth21.9 in
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Lift Height15.9 in
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Width78 in
Service Refill Capacities
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Cooling System2.8 gal
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Engine Oil2.5 gal
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Hydraulic Tank18 gal
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Fuel Tank16.6 gal
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Hydraulic System20.6 gal
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Cooling System2.8 gal (US)
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Engine Oil2.5 gal (US)
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Fuel Tank16.6 gal (US)
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Hydraulic System20.6 gal (US)
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Hydraulic Tank18 gal (US)
Travel System
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Travel Speed – High2.8 mph
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Travel Speed – Low1.7 mph
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Maximum Traction Force - High Speed6025 lb
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Maximum Traction Force - Low Speed10746 lb
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Ground Pressure – Canopy4.5 psi
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Ground Pressure – Cab4.6 psi
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Gradeability (maximum)30°
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Travel Speed - High2.8 mile/h
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Travel Speed - Low1.7 mile/h
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Gradeability - Maximum30°
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Ground Pressure - Cab4.6 psi
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Ground Pressure - Canopy4.5 psi
Operating Specifications
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Stick Length – Standard55 in
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Stick Length – Long70 in
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Counterweight364.4 lb
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Counterweight364.4 lb
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Stick Length - Long70 in
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Stick Length - Standard55 in
Cab
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Dynamic Operator Sound Pressure Level (ISO 6396:2008)81 dB(A)
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Exterior Sound Power Level (ISO 6395:2008)*97 dB(A)
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Note*European Union Directive “2000/14/EC”
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Dynamic Operator Sound Pressure Level (ISO 6396:2008)81 dB(A)
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Exterior Sound Power Level - ISO 6395:2008*97 dB(A)
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Note*European Union Directive “2000/14/EC”
Certification – Cab and Canopy
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Roll Over Protective Structure (ROPS)ISO 12117-2
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Tip Over Protective Structure (TOPS)ISO 12117
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Top GuardISO 10262 (Level I)
Undercarriage
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Number of Carrier Rollers3
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Number of Track Rollers3
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Track Roller TypeTriple Flange
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Number of Carrier Rollers1
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Number of Track Rollers4
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Track Roller TypeCenter Flange
Lift Capacities at Ground Level – Lift Point Radius: 3000 mm (9’8”)
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Blade Down – Front5710 lb
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Blade Up – Front3417 lb
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Blade Down – Side2844 lb
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Blade Up – Side2535 lb
Lift Capacities at Ground Level - Lift Point Radius: 4500 mm (14'9”)
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Blade Down - Front3042 lb
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Blade Up - Front1808 lb
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Blade Down - Side1521 lb
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Blade Up - Side1367 lb
Dimensions – Standard Stick
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Dig Depth137 in
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Vertical Wall92 in
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Maximum Reach at Ground Level222 in
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Maximum Reach228 in
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Maximum Dig Height210 in
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Maximum Dump Clearance150 in
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Boom In Reach94 in
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Tail Swing44 in
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Maximum Blade Height16 in
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Maximum Blade Depth22 in
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Boom Height in Shipping Position69 in
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O/A Shipping Height100 in
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Swing Bearing Height24 in
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O/A Undercarriage Length102 in
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O/A Shipping Length210 in
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Boom Swing Right31 in
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Boom Swing Left27 in
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Track Belt/Shoe Width16 in
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O/A Track Width78 in
Dimensions – Long Stick
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Dig Depth152 in
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Vertical Wall107 in
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Maximum Reach at Ground Level237 in
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Maximum Reach243 in
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Maximum Dig Height220 in
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Maximum Dump Clearance161 in
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Boom In Reach100 in
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Tail Swing44 in
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Maximum Blade Height16 in
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Maximum Blade Depth22 in
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Boom Height in Shipping Position85 in
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O/A Shipping Height100 in
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Swing Bearing Height24 in
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O/A Undercarriage Length102 in
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O/A Shipping Length215 in
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Boom Swing Right31 in
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Boom Swing Left27 in
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Track Belt/Shoe Width16 in
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O/A Track Width78 in
Certification - Cab and Canopy
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Roll Over Protective Structure (ROPS)ISO 12117-2
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Tip Over Protective Structure (TOPS)ISO 12117
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Top GuardISO 10262 (Level I)
Dimensions - Long Stick
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Boom Height - Shipping Position85 in
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Boom In Reach100 in
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Boom Swing - Left27 in
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Boom Swing - Right31 in
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Dig Depth152 in
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Maximum Blade Depth22 in
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Maximum Blade Height16 in
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Maximum Dig Height220 in
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Maximum Dump Clearance161 in
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Maximum Reach243 in
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Maximum Reach - Ground Level237 in
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O/A Shipping Height100 in
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O/A Shipping Length215 in
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O/A Track Width78 in
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O/A Undercarriage Length102 in
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Swing Bearing - Height24 in
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Tail Swing44 in
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Track Belt/Shoe Width16 in
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Vertical Wall107 in
Dimensions - Standard Stick
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Boom Height - Shipping Position69 in
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Boom In Reach94 in
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Boom Swing - Left27 in
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Boom Swing - Right31 in
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Dig Depth137 in
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Maximum Blade Depth22 in
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Maximum Blade Height16 in
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Maximum Dig Height210 in
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Maximum Dump Clearance150 in
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Maximum Reach228 in
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Maximum Reach - Ground Level222 in
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O/A Shipping Height100 in
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O/A Shipping Length210 in
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O/A Track Width78 in
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O/A Undercarriage Length102 in
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Swing Bearing - Height24 in
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Tail Swing44 in
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Track Belt/Shoe Width16 in
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Vertical Wall92 in
Lift Capacities at Ground Level - Lift Point Radius: 3000 mm (9'8”)
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Blade Down - Front5710 lb
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Blade Down - Side2844 lb
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Blade Up - Front3417 lb
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Blade Up - Side2535 lb
Air Conditioning System
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Air ConditioningThe 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.
QUALITY
The durable hoods and frame and the compact radius design of the 305.5E2 let you work comfortably and confidently in confined areas. The operator environment includes a high quality suspension seat, easy to adjust armrests and 100% pilot controls which offer consistent and long-lasting controllability.
EFFICIENCY
High Definition Hydraulic System provides a load sensing and flow sharing capability leading to operational precision, efficient performance and greater controllability. Power on Demand provides optimal efficiency and performance the moment you need it. This automatic system ensures fuel efficiency through appropriate engine rating to meet all operational needs as required.
VERSATILITY
Broad range of Cat Work Tools make the Cat Mini Excavator a versatile machine able to meet the requirements of any job site. Over 200 degrees of bucket rotation provides greater material retention during truck loading and easier flat wall digging without having to reposition the machine.
PERFORMANCE
Front shovel bucket orientation provides the operator with more ways to get the job done faster. COMPASS Control Panel is a standard feature that allows the operator to easily adjust auxiliary flows to achieve the optimal work tool performance, activate auto idle for improved fuel efficiency and utilize the security system to ensure protection of valuable assets with the simple touch of a button. The Site Reference System included in the COMPASS monitor provides output from pitch and roll sensors to aid in grading and level trenching. This impacts accuracy and productivity for job site finishing.
SERVICEABILITY
Convenient service and maintenance requirements include ease of access to daily check points, 500 hour engine oil and filter change period, 500 hour grease interval on front implement, S·O·SSM oil sampling valve and overall long term durability.
SAFETY
All Cat Mini Excavators from 3.5 metric tons to 8 metric tons are ROPS, TOPS and Top Guard Level 1 certified and include the Cat Interlock (hydraulic lockout) System, a certified accumulator which allows for auxiliary pressure to be released, making connecting and disconnecting work tools safer and easier, and a travel alarm. All of these safety features are standard on the E2 model lineup (travel alarm optional in Europe).
Standard Equipment:
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- Engine
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- Cat C2.4 diesel engine (meets U.S. EPA Tier 4 Final emission standards for North America and EU Stage IIIA/Tier 4 Interim emission standards for all other regions)
- Automatic engine idle
- Automatic engine shut-off
- Automatic two speed travel
- Diesel Particulate Filter (North America only)
- Diesel Oxidation Catalyst (North America only)
- Fuel and water separator
- Power on demand
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- Hydraulic System
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- 1-way and 2-way (combined function)
- Accumulator
- Automatic swing parking brake
- Auxiliary hydraulic lines
- Adjustable auxiliary relief
- Auxiliary line quick disconnects
- Cat interlock system: hydraulic lockout
- Continuous auxiliary flow
- Ecology drain
- Hydraulic oil cooler
- High definition hydraulics
- Load sensing/flow sharing
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- Operator Environment
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- 100% pilot control ergonomic joysticks
- Adjustable armrests
- COMPASS: complete, operation, maintenance, performance and security system
- Multiple languages
- Cup holder
- Hydraulic neutral lockout bar
- Literature holder
- Pattern changer (optional in Europe)
- Site reference system: leveling
- Tool storage area
- Travel control pedals with hand levers
- Washable floor mat
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- Undercarriage
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- Dozer blade with float function
- Track, rubber belt, 400 mm (16 in) width
- Tie down eyes on track frame
- Towing eye on base frame
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- Front Linkage
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- 200 degree bucket rotation
- Certified lifting eye on bucket linkage (optional in Europe)
- Front shovel capable
- Thumb ready stick
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- Electrical
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- 12 volt electrical system
- 60 ampere alternator
- 650 CCA maintenance free battery
- Fuse box
- Ignition key start/stop switch
- Slow blow fuse
- Warning horn
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- Lights And Mirrors
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- Boom light with time delay capability
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- Safety And Security
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- Anti-theft system (COMPASS)
- Caterpillar Corporate “One Key” System
- Door locks
- Lockable fuel cap
- Retractable seat belt
- Roll Over Protective Structure (ROPS) (ISO 12117-2)
- Tip Over Protective Structure (TOPS) (ISO 12117)
- Top guard – ISO 10262 (Level 1)
- Travel alarm (optional in Europe)
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- Technology
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- Product Link™
Optional Equipment:
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- Engine
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- Engine block heater
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- Hydraulic System
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- Quick coupler lines
- Boom lowering check valve
- Stick lowering check valve
- Secondary auxiliary hydraulic lines
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- Operator Environment
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- Cab:
- Air conditioning
- Heat
- High back suspension seat
- Interior light
- Interlocking front window system
- Radio
- Windshield wiper
- Cab:
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- Undercarriage
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- Power angle blade
- Track, double grouser (steel), 400 mm (16 in)
- Track, double grouser (steel) with rubber pad, 400 mm (16 in)
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- Front Linkage
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- Quick coupler: manual or hydraulic
- Thumb
- Buckets
- Full range of performance matched work tools
- Auger, hammer, ripper
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- Lights And Mirrors
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- Light, cab with time delay capability
- Mirror, canopy right
- Mirror, canopy left
- Mirror, cab rear
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- Safety And Security
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- Battery disconnect
- Beacon socket
- Front wire mesh guard
- Rearview camera
- Vandal guard
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- Other Attachments
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- Counterweight, extra