305.5E2 CR Mini Hydraulic Excavator

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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. Contact one of our multiple  North Carolina locations to learn more.

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Bore 3.4in
Displacement 146in³
Emissions Meets U.S. EPA Tier 4 Final/EU Stage IIIA emission standards.
Engine Model Cat® C2.4
Gross Power - ISO 14396 45.7HP
Net Power 44.1HP
Net Power - 2,200 rpm - ISO 9249/EEC 80/1269 44.1HP
Stroke 4in
Note *Weight includes counterweight, rubber tracks, bucket, operator, full fuel and auxiliary lines.
Operating Weight 11958lb
Weight - Cab, Long Stick 11958lb
Weight - Cab, Standard Stick 11863lb
Weight - Canopy, Long Stick 11596lb
Weight - Canopy, Standard Stick 11503lb
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
Boom Swing - Left - With Stop* 60°
Boom Swing - Left - Without Stop* 80°
Boom Swing - Right 50°
Machine Swing Speed 10r/min
Note *Automatic swing brake, spring applied, hydraulic release.
Dig Depth 21.9in
Height 14.8in
Lift Height 15.9in
Width 78in
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
Counterweight 364.4lb
Stick Length - Long 70in
Stick Length - Standard 55in
Blade Down - Front 3042lb
Blade Down - Side 1521lb
Blade Up - Front 1808lb
Blade Up - Side 1367lb
Blade Down - Front 5710lb
Blade Down - Side 2844lb
Blade Up - Front 3417lb
Blade Up - Side 2535lb
Roll Over Protective Structure (ROPS) ISO 12117-2
Tip Over Protective Structure (TOPS) ISO 12117
Top Guard ISO 10262 (Level I)
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”
Gradeability - Maximum 30°
Ground Pressure - Cab 4.6psi
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
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.
Digging Force - Bucket 11445lb
Digging Force - Stick - Long 5575lb
Digging Force - Stick - Standard 6500lb
Maximum Auxiliary Circuit - Primary - Flow 21.1gal/min
Maximum Auxiliary Circuit - Primary - Pressure 3553psi
Maximum Auxiliary Circuit - Secondary - Flow 6.6gal/min
Maximum Auxiliary Circuit - Secondary - Pressure 3553psi
Operating Pressure - Equipment 3553psi
Operating Pressure - Swing 3132psi
Operating Pressure - Travel 3553psi
Pump Flow at 2,400 rpm 39.6gal/min
Type Load Sensing Hydraulics with Variable Displacement Piston Pump
Number of Carrier Rollers 1
Number of Track Rollers 4
Track Roller Type Center Flange
Cooling System 2.8gal (US)
Engine Oil 2.5gal (US)
Fuel Tank 16.6gal (US)
Hydraulic System 20.6gal (US)
Hydraulic Tank 18gal (US)

Standard 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

Optional Equipment:

  • 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