Cat Excavators:

305.5E2 CR Mini Hydraulic Excavator

305.5E2 CR Mini Hydraulic Excavator with Swing Boom
    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

    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.



    Product Specs

    • Engine

    • Engine Model
      Cat® C2.4
      Net Power
      44.1hp
      Rated Net Power @ 2,200 rpm – ISO 9249/EEC 80/1269
      44.1hp
      Bore
      3.4in
      Stroke
      4in
      Displacement
      146in3
      Engine Model
      Cat® C2.4
      Net Power
      44.1HP
      Rated Net Power - 2,200 rpm - ISO 9249/EEC 80/1269
      44.1HP
      Bore
      3.4in
      Displacement
      146in³
      Stroke
      4in
      Gross Power – ISO 14396
      45.7hp
      Emissions
      Meets U.S. EPA Tier 4 Final/EU Stage IIIA emission standards.
      Emissions
      Meets U.S. EPA Tier 4 Final/EU Stage IIIA emission standards.
      Gross Power - ISO 14396
      45.7HP
    • Weights*

    • Weight – Canopy, Standard Stick
      11503lb
      Weight - Canopy, Standard Stick
      11503lb
      Operating Weight
      11958lb
      Weight – Canopy, Long Stick
      11596lb
      Weight – Cab, Standard Stick
      11863lb
      Weight – Cab, Long Stick
      11958lb
      Note
      *Weight includes counterweight, rubber tracks, bucket, operator, full fuel and auxiliary lines.
      Note
      *Weight includes counterweight, rubber tracks, bucket, operator, full fuel and auxiliary lines.
      Weight - Cab, Long Stick
      11958lb
      Weight - Cab, Standard Stick
      11863lb
      Weight - Canopy, Long Stick
      11596lb
      Note
      11596lb
    • Hydraulic System

    • Pump Flow at 2,400 rpm
      39.6gal/min
      Auxiliary Circuit – Primary (186 bar/2,734 psi)
      21.1gal/min
      Auxiliary Circuit – Secondary (174 bar/2,524 psi)
      6.6gal/min
      Auxiliary Circuit - Primary (186 bar/2,734 psi)
      21.1gal/min
      Auxiliary Circuit - Secondary (174 bar/2,524 psi)
      6.6gal/min
      Pump Flow at 2,400 rpm
      39.6gal/min
      Operating Pressure - Equipment
      3553psi
      Operating Pressure - Travel
      3553psi
      Operating Pressure - Swing
      3132psi
      Digging Force - Stick - Standard
      6500lb
      Digging Force - Stick - Long
      5575lb
      Digging Force - Bucket
      11445lb
      Type
      Load Sensing Hydraulics with Variable Displacement Piston Pump
      Digging Force – Bucket
      11445lb
      Type
      Load Sensing Hydraulics with Variable Displacement Piston Pump
    • Swing System

    • Machine Swing Speed
      10rpm
      Boom Swing – Left* (without stop)
      80°
      Boom Swing – Left* (with stop)
      60°
      Boom Swing – Right
      50°
      Machine Swing Speed
      10r/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.
      Note
      *Automatic swing brake, spring applied, hydraulic release.
    • Blade

    • Width
      78.0in
      Width
      78in
      Height
      14.8in
      Dig Depth
      21.9in
      Lift Height
      15.9in
    • Service Refill Capacities

    • Cooling System
      2.8gal
      Engine Oil
      2.5gal
      Hydraulic Tank
      18gal
      Fuel Tank
      16.6gal
      Hydraulic System
      20.6gal
      Cooling System
      2.8gal (US)
      Engine Oil
      2.5gal (US)
      Fuel Tank
      16.6gal (US)
      Hydraulic System
      20.6gal (US)
      Hydraulic Tank
      18gal (US)
    • Travel System

    • Travel Speed – High
      2.8mph
      Travel Speed – Low
      1.7mph
      Travel Speed - High
      2.8mile/h
      Travel Speed - Low
      1.7mile/h
      Maximum Traction Force - High Speed
      6025lb
      Maximum Traction Force - Low Speed
      10746lb
      Ground Pressure – Canopy
      4.5psi
      Ground Pressure – Cab
      4.6psi
      Gradeability (maximum)
      30°
      Gradeability - Maximum
      30°
      Ground Pressure - Cab
      4.6psi
      Ground Pressure - Canopy
      4.5psi
    • Cab

    • Dynamic Operator Sound Pressure Level (ISO 6396:2008)
      81dB(A)
      Exterior Sound Power Level - ISO 6395:2008*
      97dB(A)
      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)
      Note
      *European Union Directive “2000/14/EC”
    • 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 - Long Stick

    • Boom Height - Shipping Position
      85in
      Boom In Reach
      100in
      Boom Swing - Left
      27in
      Boom Swing - Right
      31in
      Dig Depth
      152in
      Maximum Blade Depth
      22in
      Maximum Blade Height
      16in
      Maximum Dig Height
      220in
      Maximum Dump Clearance
      161in
      Maximum Reach
      243in
      Maximum Reach - Ground Level
      237in
      O/A Shipping Height
      100in
      O/A Shipping Length
      215in
      O/A Track Width
      78in
      O/A Undercarriage Length
      102in
      Swing Bearing - Height
      24in
      Tail Swing
      44in
      Track Belt/Shoe Width
      16in
      Vertical Wall
      107in
    • Dimensions - Standard Stick

    • Boom Height - Shipping Position
      69in
      Boom In Reach
      94in
      Boom Swing - Left
      27in
      Boom Swing - Right
      31in
      Dig Depth
      137in
      Maximum Blade Depth
      22in
      Maximum Blade Height
      16in
      Maximum Dig Height
      210in
      Maximum Dump Clearance
      150in
      Maximum Reach
      228in
      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
      Swing Bearing - Height
      24in
      Tail Swing
      44in
      Track Belt/Shoe Width
      16in
      Vertical Wall
      92in
    • Operating Specifications

    • Stick Length – Standard
      55in
      Counterweight
      364.4lb
      Stick Length - Long
      70in
      Stick Length - Standard
      55in
      Stick Length – Long
      70in
      Counterweight
      364.4lb
    • Lift Capacities at Ground Level - Lift Point Radius: 3000 mm (9'8”)

    • Blade Down - Front
      5710lb
      Blade Down - Side
      2844lb
      Blade Up - Front
      3417lb
      Blade Up - Side
      2535lb
    • 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)
    • Undercarriage

    • Number of Carrier Rollers
      1
      Number of Track Rollers
      4
      Track Roller Type
      Center Flange
      Number of Carrier Rollers
      3
      Number of Track Rollers
      3
      Track Roller Type
      Triple Flange
    • Lift Capacities at Ground Level – Lift Point Radius: 3000 mm (9’8”)

    • Blade Down – Front
      5710lb
      Blade Up – Front
      3417lb
      Blade Down – Side
      2844lb
      Blade Up – Side
      2535lb
    • Lift Capacities at Ground Level - Lift Point Radius: 4500 mm (14'9”)

    • Blade Down - Front
      3042lb
      Blade Up - Front
      1808lb
      Blade Down - Side
      1521lb
      Blade Up - Side
      1367lb
    • Dimensions – Standard Stick

    • Dig Depth
      137in
      Vertical Wall
      92in
      Maximum Reach at Ground Level
      222in
      Maximum Reach
      228in
      Maximum Dig Height
      210in
      Maximum Dump Clearance
      150in
      Boom In Reach
      94in
      Tail Swing
      44in
      Maximum Blade Height
      16in
      Maximum Blade Depth
      22in
      Boom Height in Shipping Position
      69in
      O/A Shipping Height
      100in
      Swing Bearing Height
      24in
      O/A Undercarriage Length
      102in
      O/A Shipping Length
      210in
      Boom Swing Right
      31in
      Boom Swing Left
      27in
      Track Belt/Shoe Width
      16in
      O/A Track Width
      78in
    • 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.
    • Dimensions – Long Stick

    • Dig Depth
      152in
      Vertical Wall
      107in
      Maximum Reach at Ground Level
      237in
      Maximum Reach
      243in
      Maximum Dig Height
      220in
      Maximum Dump Clearance
      161in
      Boom In Reach
      100in
      Tail Swing
      44in
      Maximum Blade Height
      16in
      Maximum Blade Depth
      22in
      Boom Height in Shipping Position
      85in
      O/A Shipping Height
      100in
      Swing Bearing Height
      24in
      O/A Undercarriage Length
      102in
      O/A Shipping Length
      215in
      Boom Swing Right
      31in
      Boom Swing Left
      27in
      Track Belt/Shoe Width
      16in
      O/A Track Width
      78in

    Equipment

    • Engine
      • 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
    • Hydraulic System
      • 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
    • Operator Environment
      • 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
    • Undercarriage
      • Dozer blade with float function
      • Track, rubber belt, 400 mm (16 in) width
      • Tie down eyes on track frame
      • Towing eye on base frame
    • Front Linkage
      • 200 degree bucket rotation
      • Certified lifting eye on bucket linkage (optional in Europe)
      • Front shovel capable
      • Thumb ready stick
    • Electrical
      • 12 volt electrical system
      • 60 ampere alternator
      • 650 CCA maintenance free battery
      • Fuse box
      • Ignition key start/stop switch
      • Slow blow fuse
      • Warning horn
    • Lights And Mirrors
      • Boom light with time delay capability
    • Safety And Security
      • 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)
    • Technology
      • Product Link
    • Engine
      • Engine block heater
    • Hydraulic System
      • Quick coupler lines
      • Boom lowering check valve
      • Stick lowering check valve
      • Secondary auxiliary hydraulic lines
    • Operator Environment
      • Cab:
        • Air conditioning
        • Heat
        • High back suspension seat
        • Interior light
        • Interlocking front window system
        • Radio
        • Windshield wiper
    • Undercarriage
      • Power angle blade
      • Track, double grouser (steel), 400 mm (16 in)
      • Track, double grouser (steel) with rubber pad, 400 mm (16 in)
    • Front Linkage
      • Quick coupler: manual or hydraulic
      • Thumb
      • Buckets
      • Full range of performance matched work tools
        • Auger, hammer, ripper
    • Lights And Mirrors
      • Light, cab with time delay capability
      • Mirror, canopy right
      • Mirror, canopy left
      • Mirror, cab rear
    • Safety And Security
      • Battery disconnect
      • Beacon socket
      • Front wire mesh guard
      • Rearview camera
      • Vandal guard
    • Other Attachments
      • Counterweight, extra

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