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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

PRICE (USD)
Call 800-637-5000 for rate information

Engine

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

Weights*

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

Hydraulic System

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

Swing System

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

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

Service Refill Capacities

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

Travel System

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

Operating Specifications

  • Stick Length – Standard
    55 in
  • Stick Length – Long
    70 in
  • Counterweight
    364.4 lb
  • Counterweight
    364.4 lb
  • Stick Length - Long
    70 in
  • Stick Length - Standard
    55 in

Cab

  • 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”
  • 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

  • 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
    3
  • Number of Track Rollers
    3
  • Track Roller Type
    Triple Flange
  • Number of Carrier Rollers
    1
  • Number of Track Rollers
    4
  • Track Roller Type
    Center Flange

Lift Capacities at Ground Level – Lift Point Radius: 3000 mm (9’8”)

  • Blade Down – Front
    5710 lb
  • Blade Up – Front
    3417 lb
  • Blade Down – Side
    2844 lb
  • Blade Up – Side
    2535 lb

Lift Capacities at Ground Level - Lift Point Radius: 4500 mm (14'9”)

  • Blade Down - Front
    3042 lb
  • Blade Up - Front
    1808 lb
  • Blade Down - Side
    1521 lb
  • Blade Up - Side
    1367 lb

Dimensions – Standard Stick

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

Dimensions – Long Stick

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

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

Dimensions - Standard Stick

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

Lift Capacities at Ground Level - Lift Point Radius: 3000 mm (9'8”)

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

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.

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:

  • 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