Cat Excavators:

303.5E CR Hydraulic Excavator

303.5E CR Mini Hydraulic Excavator
  • 303.5E CR Mini Hydraulic Excavator
  • 303.5E CR Mini Hydraulic Excavator
  • 303.5E CR Mini Hydraulic Excavator
Engine Model
Cat® C1.8
Net Power
31.6 hp
Operating Weight
7734.0 lb
Gross Power
33.3 hp

The Cat 303.5E CR delivers high performance in a compact radius design to help you work in the tightest applications.



Product Specs

  • Engine

  • Engine Model
    Cat® C1.8
    Net Power
    31.6hp
    Gross Power
    33.3hp
    Engine Model
    Cat® C1.8
    Net Power
    31.6HP
    Gross Power
    33.3HP
  • Weights

  • Operating Weight
    7734.0lb
    Operating Weight - With Cab
    8139lb
    Operating Weight
    7734lb
  • Engine Dimensions

  • Bore
    3.4in
    Stroke
    4.0in
    Displacement
    110.0in3
    Bore
    3.4in
    Stroke
    4in
    Displacement
    110in³
  • Hydraulic System

  • Operating Pressure - Equipment
    3553.0psi
    Operating Pressure - Equipment
    3553psi
    Operating Pressure - Travel
    3553psi
    Operating Pressure - Swing
    2625psi
    Auxiliary Circuit - Primary
    15.9gal/min
    Auxiliary Circuit - Secondary
    7.1gal/min
    Digging Force - Stick - Standard
    4249lb
    Digging Force - Stick - Long
    3799lb
    Digging Force - Bucket
    7419lb
  • Swing System

  • Machine Swing Speed
    9.0RPM
    Boom swing - left (without stop)
    80.0Degrees
    Boom swing - left (with stop)
    55.0Degrees
    Boom Swing - Right
    50.0Degrees
    Machine Swing Speed
    9r/min
    Boom Swing - Left - Without Stop
    80°
    Boom Swing - Left - With Stop
    55°
    Boom Swing - Right
    50°
  • Blade

  • Width
    70.0in
    Height
    12.8in
    Dig Depth
    18.5in
    Lift Height
    15.7in
    Width
    70in
  • Service Refill Capacities

  • Cooling System
    1.5gal
    Engine Oil
    1.8gal
    Hydraulic Tank
    11.2gal
    Fuel Tank
    12.2gal
    Hydraulic System
    17.2gal
    Cooling System
    1.5gal (US)
    Engine Oil
    1.8gal (US)
    Hydraulic Tank
    11.2gal (US)
    Fuel Tank
    12.2gal (US)
    Hydraulic System
    17.2gal (US)
  • Dimensions

  • Shipping Height
    8.2ft
    Shipping Length
    15.5ft
    Transport Width
    5.8ft
    Maximum Digging Depth - Standard Stick
    9.6ft
    Maximum Reach - Ground Level - Standard Stick
    16.7ft
    Height - Over Cab
    8.2ft
    Maximum Cutting Height - Long Stick
    16.5ft
    Maximum Cutting Height - Standard Stick
    16.2ft
    Maximum Dump Height - Long Stick
    11.9ft
    Maximum Dump Height - Standard Stick
    11.5ft
    Maximum Horizontal Reach - Long Stick
    17.8ft
    Maximum Horizontal Reach - Standard Stick
    17.1ft
    Maximum Vertical Dig Depth - Long Stick
    8.2ft
    Maximum Vertical Dig Depth - Standard Stick
    7.7ft
    Track Shoe Width
    1ft
    Shipping Height
    8.2ft
    Shipping Length
    15.5ft
    Transport Width
    5.8ft
  • Travel System

  • Max traction force - high speed
    3799.0lb
    Max traction force - low speed
    6969.0lb
    Maximum Traction Force - High Speed
    3799lb
    Maximum Traction Force - Low Speed
    6969lb
    Travel Speed - High
    2.8mile/h
    Travel Speed - Low
    1.6mile/h
  • MSC Comments

  • MSC Spec Date
    3/06

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