New CAT Equipment

303.5 CR Mini Hydraulic Excavator

The Performance Upgraded Cat® 303.5 CR Mini Excavator

The upgraded 303.5 CR delivers power and performance in a wide range of applications. Faster transient speeds, coupled with exclusive features like stick steer joystick travel get you moving quickly and comfortably so you can focus on the task at hand.

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Benefits

Upgraded Performance

25% higher transient speeds result in 35% more productivity*
*Up to 25% and 35%, are against the previous model and based upon application, conditions and temperatures.
 

Cat® Exclusive Features

Stick steer joystick travel, cruise control, Sealed and pressurized cab with AC, Tilt-cab service access

Low Owning and Operating Costs

Easy service and repair access and extended service intervals and VisionLink™ Telematics

Learn more about the 303.5 CR Mini Hydraulic Excavator

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  • Air Conditioning System
    Air Conditioning
    The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a or R1234yf (Europe) (Global Warming Potential = 1430). See label or instruction manual for gas refrigerant identification. The system contains 0.75 kg (1.65 lb), 0.90 kg (1.98 lb) or 1.0 kg (2.20 lb) of refrigerant which has a CO2 equivalent of 1.430 metric tonnes (1.576 tons) for R134a and 0.001 tonnes (0.001 tons) for R1234yf (Europe).
  • Blade
    Height
    13.8 in
    Width
    70.1 in
  • Certification - Cab and Canopy
    Roll Over Protective Structure (ROPS)
    ISO 12117-2:2008
    Tip Over Protective Structure (TOPS)
    ISO 12117:1997
    Top Guard
    ISO 10262:1998 (Level I)
  • Dimensions - Long Stick
    Boom Height - Shipping Position
    68.9 in
    Boom In Reach
    73.2 in
    Boom Swing - Left
    640 mm
    Boom Swing - Right
    34.3 °
    Dig Depth
    122.4 in
    Maximum Blade Depth
    21.1 in
    Maximum Blade Height
    15.2 in
    Maximum Dig Height
    197.6 in
    Maximum Dump Clearance
    141.7 in
    Maximum Reach
    216.9 in
    Maximum Reach - Ground Level
    211.8 in
    Minimum Ground Clearance Below Undercarriage
    12.2 in
    Note
    *Overall Shipping Length depends on blade position during shipment.
    O/A Shipping Height
    97.6 in
    O/A Undercarriage Length
    87.4 in
    Overall Shipping Length*
    190.9 in
    Stick Length
    61.4 in
    Swing Bearing - Height
    22.2 in
    Tail Swing - with Extra Counterweight
    39.6 in
    Tail Swing without Counterweight
    35 in
    Track Belt/Shoe Width
    11.8 in
    Track Width
    70.1 in
    Vertical Wall
    94.1 in
  • Dimensions - Standard Stick
    Boom Height - Shipping Position
    59.8 in
    Boom In Reach
    69.3 in
    Boom Swing - Left
    25.2 °
    Boom Swing - Right
    34.3 °
    Dig Depth
    110.6 in
    Maximum Blade Depth
    21.1 in
    Maximum Blade Height
    15.2 in
    Maximum Dig Height
    193.7 in
    Maximum Dump Clearance
    137.4 in
    Maximum Reach
    207.5 in
    Maximum Reach - Ground Level
    202 in
    Minimum Ground Clearance Below Undercarriage
    12.2 in
    Note
    *Overall Shipping Length depends on blade position during shipment.
    O/A Shipping Height
    97.6 in
    O/A Undercarriage Length
    87.4 in
    Overall Shipping Length*
    189 in
    Stick Length
    49.6 in
    Swing Bearing - Height
    22.2 in
    Tail Swing with Extra Counterweight
    39.6 in
    Tail Swing without Counterweight
    35 in
    Track Belt/Shoe Width
    11.8 in
    Vertical Wall
    88.6 in
  • Engine
    Bore
    3.3 in
    Displacement
    104 in³
    Emissions
    Meets U.S. EPA Tier 4 Final and EU Stage V emission standards.
    Engine Model
    C1.7
    Net Power
    23.6 hp
    Net Power - ISO 9249
    24.7 hp
    Net Power @ 2,200 rpm - U.S. EPA Tier 4 Final/EU Stage V - ISO 9249/EEC 80/1269
    23.6 hp
    Note
    Advertised power is tested per the specified standard in effect at the time of manufacture.
    Note (1)
    Net power advertised is the power available at the flywheel when the engine is at the rated speed of 2,200 rpm and the engine is installed with the factory configured fan, air intake system, exhaust system and alternator with a minimum alternator load.
    Stroke
    3.9 in
  • Hydraulic System
    Auxiliary Circuit - Primary - Flow
    18 gpm
    Auxiliary Circuit - Primary - Pressure
    3553 psi
    Auxiliary Circuit - Secondary - Flow
    7 gpm
    Auxiliary Circuit - Secondary - Pressure
    3553 psi
    Digging Force - Bucket
    7419 lbf
    Digging Force - Stick - Long
    3799 lbf
    Digging Force - Stick - Standard
    4249 lbf
    Note
    *Flow and pressure are not combinable. Under load, as flow rises pressure goes down.
    Operating Pressure - Equipment
    3553 psi
    Operating Pressure - Swing
    2625 psi
    Operating Pressure - Travel
    3553 psi
    Pump Flow at 2,400 rpm
    26 gpm
    Type
    Load Sensing Hydraulics with Variable Displacement Piston Pump
  • Service Refill Capacities
    Cooling System
    1.8 gal (US)
    Engine Oil
    1.6 gal (US)
    Fuel Tank
    11.9 gal (US)
    Hydraulic System
    11.9 gal (US)
    Hydraulic Tank
    5.3 gal (US)
  • Sound
    Average Exterior Sound Pressure (ISO 6395:2008)
    94 dB(A)
    Note
    European Union Directive ‚ "2000/14/EC"
    Operator Sound Pressure (ISO 6396:2008)
    78 dB(A)
  • Sustainability
    Recyclability
    95%
  • Swing System
    Boom Swing - Left
    75 °
    Boom Swing - Right
    50 °
    Machine Swing Speed
    9 r/min
  • Travel System
    Gradeability - Maximum
    30 degrees
    Ground Pressure - Maximum Weight
    5.2 psi
    Ground Pressure - Minimum Weight
    4.3 psi
    Maximum Traction Force - High Speed
    3799 lbf
    Maximum Traction Force - Low Speed
    6969 lbf
    Travel Speed - High
    2.8 mile/h
    Travel Speed - Low
    1.6 mile/h
  • Weight Increase from Minimum Configuration
    Angle Blade
    353 lb
    Cab
    309 lb
    Counterweight
    221 lb
    Extra Counterweight
    551 lb
    Long Stick
    44 lb
    Steel Tracks
    287 lb
  • Weights
    EU: CE Plate Weight with Cab***
    8004 lb
    EU: CE Plate Weight with Canopy***
    7784 lb
    Maximum Operating Weight with Cab**
    9239 lb
    Maximum Operating Weight with Canopy**
    8930 lb
    Minimum Operating Weight with Cab*
    7982 lb
    Minimum Operating Weight with Canopy*
    7673 lb
    Note (1)
    *Minimum Weight is based on fixed rubber tracks, operator, full fuel tank, standard stick, blade, no bucket and extra counterweight.
    Note (2)
    **Maximum Weight is based on steel tracks, operator, full fuel tank, long stick, blade, no bucket and extra counterweight.
    Note (3)
    ***CE Plate Weight is based on the most common EU configuration. Includes 75 kg (165 lb) operator and full fuel tank and excludes bucket.
    Operating Weight
    9239 lb
ENGINE
  • Cat C1.7 NA Engine (U.S. EPA Tier 4 Final/EU Stage V)
  • Cat C1.7 NA Engine (U.S. EPA Tier 4 Final/EU Stage V)
  • Automatic Engine Idle
  • Automatic Engine Idle
  • Automatic Engine Shutdown
  • Automatic Engine Shutdown
  • Automatic Two Speed Travel
  • Automatic Two Speed Travel
  • Fuel Water Separator
  • Fuel Water Separator
  • Power on Demand (not available in all regions)
  • Power on Demand (not available in all regions)
  • Variable Displacement Piston Pump
  • Variable Displacement Piston Pump
  • Load Sensing/Flow Sharing Hydraulics
  • Load Sensing/Flow Sharing Hydraulics
HYDRAULICS
  • Smart Tech Electronic Pump
  • Accumulator
  • Smart Tech Electronic Pump
  • Automatic Swing Brake
  • Accumulator
  • Auxiliary Line Quick Disconnects
  • Automatic Swing Brake
  • One and Two Way Auxiliary Flow
  • Auxiliary Hydraulic Lines
  • Continuous Auxiliary Flow
  • One and Two Way Auxiliary Flow
  • Auxiliary Hydraulic Lines
  • Continuous Auxiliary Flow
  • Auxiliary Line Quick Disconnects
OPERATOR ENVIRONMENT
  • Tilt-up Canopy or Tilt-Up Cab
  • Stick Steer Mode
  • Tilt-up Canopy or Tilt-Up Cab
  • Travel Cruise Control
  • Top Guard ISO 10262:1998 Level I
  • Control Pattern Changer (optional in some regions)
  • ROPS – ISO 12117-2:2008
  • Adjustable Wrist Rests
  • TOPS – ISO 12117:1997
  • Washable Floor Mat
  • Travel Pedals and Hand Levers
  • Stick Steer Mode
  • Machine Security
  • Travel Cruise Control
  • Machine Security – Standard Key with Pass Code
  • Control Pattern Changer (optional in some regions)
  • Fabric Suspension Seat (Cab only)
  • Adjustable Wrist Rests
  • Vinyl Suspension Seat (Canopy only)
  • Washable Floor Mat
  • Hydraulic Lockout – All Controls
  • Travel Pedals and Hand Levers
  • Retractable High Visibility Seat Belt (75 mm/3 in)
  • Machine Security
  • Coat Hook
  • Machine Security – Standard Key with Pass Code
  • Cup Holder
  • Fabric Suspension Seat (Cab only)
  • Storage Pocket
  • Vinyl Suspension Seat (Canopy only)
  • Skylight
  • Hydraulic Lockout – All Controls
  • Mounting Bosses for Front
  • Retractable High Visibility Seat Belt (75 mm/3 in)
  • Signaling/Warning Horn
  • Coat Hook
  • Interior Light (Cab only)
  • Cup Holder
  • Boom Light, Halogen (not available in all regions)
  • Storage Pocket
  • Utility Space for Mobile Phone
  • Skylight
  • Next Generation Color LCD Monitor (IP66)
    – Fuel Level and Coolant Temperature Gauges
    – Maintenance and Machine Monitoring
    – Performance and Machine Adjustments
    – Numeric Security Code
    – Multiple Languages
    – Hour Meter with Wake Up Switch
    – Jog Dial (cab only)
  • Mounting Bosses for Front
  • Signaling/Warning Horn
  • Interior Light (Cab only)
  • Boom Light, Halogen
  • Utility Space for Mobile Phone
  • Next Generation Color LCD Monitor (IP66)
    – Fuel Level and Coolant Temperature Gauges
    – Maintenance and Machine Monitoring
    – Performance and Machine Adjustments
    – Numeric Security Code
    – Multiple Languages
    – Hour Meter with Wake Up Switch
    – Jog Dial (cab only)

    Next Generation Advanced Monitor (Optional)
    – Fuel Level and Coolant Temperature Gauges
    – Maintenance and Machine Monitoring
    – Performance and Machine Adjustments
    – Numeric Security Code
    – Multiple Languages
    – Hour Meter with Wake Up Switch
UNDERCARRIAGE
  • Rubber Belt (300 mm/11.8 in wide)
  • Dozer Blade
  • Dozer Blade Float
  • Tie Downs on Track Frame
  • Rubber Belt (300 mm/11.8 in wide)
  • Dozer Blade
  • Dozer Blade Float
  • Angle Blade
  • Tie Downs on Track Frame
BOOM, STICK AND LINKAGES
  • One Piece Boom (2400 mm/94.5 in)
  • Standard Stick (1260 mm/49.6 in)
  • Front Shovel Capable
  • Front Shovel Capable – Pin-On
  • Thumb Ready (not available in all regions)
  • Certified Lifting Eye (optional in some regions)
  • One Piece Boom (2400 mm/94.5 in)
  • Standard Stick (1260 mm/49.6 in)
  • Front Shovel Capable – Pin-On
  • Thumb Ready (not available in all regions)
  • Certified Lifting Eye (optional in some regions)
GUARDING
  • ROPS – ISO 12117-2:2008
  • TOPS – ISO 12117:1997
  • Top Guard ISO 10262:1998 (Level I)
ELECTRICAL
  • 12 Volt Battery
  • Software (machine and monitor)
  • Maintenance Free Battery
  • Lock Out/Tag Out Battery Disconnect
  • Signaling/Warning Horn
  • 12 Volt Power Socket
  • 12 Volt Battery
  • Software (machine and monitor)
  • Maintenance Free Battery
  • Signaling/Warning Horn
  • 12 Volt Power Socket
OPERATOR ENVIRONMENT
  • Cab with Air Conditioning
  • Cab with Air Conditioning
  • Cab with Heater
  • Cab with Heater
  • Control Pattern Changer (optional in some regions)
  • Control Pattern Changer (optional in some regions)
  • No Travel Pedals and Hand Levers
  • No Travel Pedals and Hand Levers
  • Machine Security – Push to Start with Key Fob/Pass Code
  • Machine Security – Push to Start with Key Fob/Pass Code
  • Vinyl Non-Suspension Seat (Canopy only)
  • Vinyl Non-Suspension Seat (Canopy only)
  • Seat Belt Reminder System
  • LED Front Lights
  • LED Front Lights
  • LED Front and Rear Lights
  • LED Front and Rear Lights
  • LED Boom Light
  • LED Boom Light
  • Mirrors Left and Right
  • Mirrors Left and Right
  • Radio – Bluetooth®, Auxiliary, Microphone, USB (charging only) (Cab only)
  • Radio – Bluetooth®, Auxiliary, Microphone, USB (charging only) (Cab only)
  • Next Generation Advanced Monitor
    – Touch Screen
    – Site Reference System
    – High Definition Camera Capable (IP68 and IP69K)
    – Numeric Security Code
UNDERCARRIAGE
  • Steel Track (300 mm/11.8 in wide)
  • Steel Track (300 mm/11.8 in wide)
  • Angle Blade
BOOM, STICK AND LINKAGES
  • Long Stick (1560 mm/61.4 in)
  • Long Stick (1560 mm/61.4 in)
  • Front Shovel Capable – Dual Lock Manual Coupler
  • Front Shovel Capable – Dual Lock Manual Coupler
  • Attachments including Couplers, Thumbs, Buckets, Augers and Hammers
  • Front Shovel Capable – Hydraulic Coupler
  • 2nd Auxiliary Hydraulic Lines
  • 2nd Auxiliary Hydraulic Lines
  • Boom Lowering Check Valve
  • Attachments including Couplers, Thumbs, Buckets, Augers and Hammers
  • Stick Lowering Check Valve
  • Boom Lowering Check Valve (Standard in Europe)
  • Hydraulic Quick Coupler Lines (not available in all regions)
  • Stick Lowering Check Valve (Standard in Europe)
  • Hydraulic Quick Coupler Lines (not available in all regions)
  • Front Shovel Capable – Hydraulic Coupler
ELECTRICAL
  • Battery Disconnect
  • Product Link PL243 (regulations apply)
  • Product Link PL243 (regulations apply)
  • Product Link PLE643 (regulations apply)
  • Product Link PLE643 (regulations apply)
  • Travel Alarm (standard in some regions)
  • Travel Alarm (standard in some regions)
GUARDING
  • Polycarbonate Half Height Front Guard (Canopy only)
  • Polycarbonate Front Guard (ISO 10262:1998 Level I and EN356 P5A)
  • Guard, Canopy
  • Guard, Mesh
OTHER
  • Bio Oil Capable
  • Eco Drain
  • Water Jacket Heater
  • Bio Oil Capable
  • Light Counterweight (100 kg/221 lb)
  • Eco Drain
  • Extra Counterweight (250 kg/551 lb)
  • Water Jacket Heater

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