305.5E2 CR Mini Hydraulic Excavator
Engine
- Net Power
- 44.1HP
- Engine Model
- Cat® C2.4
- Net Power - 2,200 rpm - ISO 9249/EEC 80/1269
- 44.1HP
- Gross Power - ISO 14396
- 45.7HP
- Emissions
- Meets U.S. EPA Tier 4 Final/EU Stage IIIA emission standards.
- Bore
- 3.4in
- Displacement
- 146in³
- Stroke
- 4in
Weights*
- Operating Weight
- 11958lb
- Weight - Canopy, Standard Stick
- 11503lb
- Note
- *Weight includes counterweight, rubber tracks, bucket, operator, full fuel and auxiliary lines.
- Weight - Cab, Standard Stick
- 11863lb
- Weight - Cab, Long Stick
- 11958lb
- Weight - Canopy, Long Stick
- 11596lb
Dimensions - Long Stick
- Dig Depth
- 152in
- Maximum Reach - Ground Level
- 237in
- Maximum Blade Depth
- 22in
- Maximum Reach
- 243in
- Maximum Blade Height
- 16in
- Maximum Dig Height
- 220in
- Maximum Dump Clearance
- 161in
- Boom Height - Shipping Position
- 85in
- Boom In Reach
- 100in
- Boom Swing - Left
- 27in
- Vertical Wall
- 107in
- Tail Swing
- 44in
- Track Belt/Shoe Width
- 16in
- O/A Shipping Height
- 100in
- O/A Shipping Length
- 215in
- O/A Track Width
- 78in
- O/A Undercarriage Length
- 102in
- Swing Bearing - Height
- 24in
- Boom Swing - Right
- 31in
Swing System
- Machine Swing Speed
- 10r/min
- Note
- *Automatic swing brake, spring applied, hydraulic release.
- Boom Swing - Right
- 50°
- Boom Swing - Left - Without Stop*
- 80°
- Boom Swing - Left - With Stop*
- 60°
Blade
- Width
- 78in
- Height
- 14.8in
- Dig Depth
- 21.9in
- Lift Height
- 15.9in
Hydraulic System
- Maximum Auxiliary Circuit - Primary - Pressure
- 3553psi
- Type
- Load Sensing Hydraulics with Variable Displacement Piston Pump
- Digging Force - Bucket
- 11445lb
- Pump Flow at 2,400 rpm
- 39.6gal/min
- Operating Pressure - Travel
- 3553psi
- Operating Pressure - Swing
- 3132psi
- Operating Pressure - Equipment
- 3553psi
- Digging Force - Stick - Standard
- 6500lb
- Digging Force - Stick - Long
- 5575lb
- Maximum Auxiliary Circuit - Secondary - Pressure
- 3553psi
- Maximum Auxiliary Circuit - Primary - Flow
- 21.1gal/min
- Maximum Auxiliary Circuit - Secondary - Flow
- 6.6gal/min
Cab
- Note
- *European Union Directive “2000/14/EC”
- Dynamic Operator Sound Pressure Level (ISO 6396:2008)
- 81dB(A)
- Exterior Sound Power Level - ISO 6395:2008*
- 97dB(A)
Certification - Cab and Canopy
- Roll Over Protective Structure (ROPS)
- ISO 12117-2
- Tip Over Protective Structure (TOPS)
- ISO 12117
- Top Guard
- ISO 10262 (Level I)
Dimensions - Standard Stick
- Maximum Dump Clearance
- 150in
- Maximum Dig Height
- 210in
- Maximum Blade Height
- 16in
- Maximum Blade Depth
- 22in
- Boom Swing - Right
- 31in
- Track Belt/Shoe Width
- 16in
- Dig Depth
- 137in
- Boom Swing - Left
- 27in
- Boom In Reach
- 94in
- Boom Height - Shipping Position
- 69in
- Tail Swing
- 44in
- Swing Bearing - Height
- 24in
- Maximum Reach - Ground Level
- 222in
- O/A Shipping Height
- 100in
- O/A Shipping Length
- 210in
- O/A Track Width
- 78in
- O/A Undercarriage Length
- 102in
- Vertical Wall
- 92in
- Maximum Reach
- 228in
Operating Specifications
- Counterweight
- 364.4lb
- Stick Length - Standard
- 55in
- Stick Length - Long
- 70in
Undercarriage
- Track Roller Type
- Center Flange
- Number of Carrier Rollers
- 1
- Number of Track Rollers
- 4
Travel System
- Gradeability - Maximum
- 30°
- Ground Pressure - Canopy
- 4.5psi
- Maximum Traction Force - High Speed
- 6025lb
- Maximum Traction Force - Low Speed
- 10746lb
- Travel Speed - High
- 2.8mile/h
- Travel Speed - Low
- 1.7mile/h
- Ground Pressure - Cab
- 4.6psi
Lift Capacities at Ground Level - Lift Point Radius: 4500 mm (14'9”)
- Blade Down - Side
- 1521lb
- Blade Up - Front
- 1808lb
- Blade Up - Side
- 1367lb
- Blade Down - Front
- 3042lb
Lift Capacities at Ground Level - Lift Point Radius: 3000 mm (9'8”)
- Blade Down - Side
- 2844lb
- Blade Up - Front
- 3417lb
- Blade Down - Front
- 5710lb
- Blade Up - Side
- 2535lb
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.
Service Refill Capacities
- Hydraulic Tank
- 18gal (US)
- Hydraulic System
- 20.6gal (US)
- Fuel Tank
- 16.6gal (US)
- Engine Oil
- 2.5gal (US)
- Cooling System
- 2.8gal (US)
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).
