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New Equipment

Caterpillar

303.5 CR Mini Hydraulic Excavator

Net Power

23.6 HP

Operating Weight

9239 lb

Dig Depth

122.4 in

Overview

The Cat® 303.5 CR Mini Excavator delivers power and performance in a compact size to help you work in a wide range of applications.

Photos

  • 303.5 CR Mini Hydraulic Excavator
    303.5 CR Mini Hydraulic Excavator
  • 303.5 CR Mini Hydraulic Excavator
    303.5 CR Mini Hydraulic Excavator
  • 303.5 CR Mini Hydraulic Excavator
    303.5 CR Mini Hydraulic Excavator
  • 303.5 CR Mini Hydraulic Excavator
    303.5 CR Mini Hydraulic Excavator
  • Front View
    Front View
  • Top View
    Top View
  • Left View
    Left View
  • Rear View
    Rear View
  • Right View
    Right View
  • 303.5 CR Mini Hydraulic Excavator
    303.5 CR Mini Hydraulic Excavator

Videos

  • See the new Cat 302.7 CR, 303 CR and 303.5 CR Mini Excavators in action.
  • Learn about the features and benefits of the new Cat 302.7 CR, 303 CR and 303.5 CR Mini Excavators.
  • Easy to read monitor lets you adjust machine settings to your operating preference.
  • Learn about the the differences between the Cat 302.7 CR, 303 CR and 303.5 CR Next Generation Mini Excavators so that you can select the correct model for your application needs.

360° View

Exterior

Model shown represents features on all Cat® Mini Excavators except where indicated.

Interior

Model shown represents features on all Cat® Mini Excavators except where indicated.

Documents

Features

ALL DAY COMFORT

ALL DAY COMFORT

  • Choose either a canopy or a sealed and pressurized cab which can be equipped with air conditioning, adjustable wrist rests, and a suspension seat option to help keep you working comfortably all day long.

ALL DAY COMFORT

  • Choose either a canopy or a sealed and pressurized cab which can be equipped with air conditioning, adjustable wrist rests, and a suspension seat option to help keep you working comfortably all day long.
EASY TO OPERATE

EASY TO OPERATE

  • Controls are easy to use and the intuitive Next Generation LCD monitor provides easy to read machine information. An advanced touchscreen monitor can also be equipped.

EASY TO OPERATE

  • Controls are easy to use and the intuitive Next Generation LCD monitor provides easy to read machine information. An advanced touchscreen monitor can also be equipped.
STICK STEER TRAVEL MODE

STICK STEER TRAVEL MODE

  • Moving around the job site is even easier with the Cat Stick Steer option. Easily switch from traditional travel controls with levers and pedals to joystick controls to move the machine and to operate the blade. The benefit of less effort and improved control is in your hands!

STICK STEER TRAVEL MODE

  • Moving around the job site is even easier with the Cat Stick Steer option. Easily switch from traditional travel controls with levers and pedals to joystick controls to move the machine and to operate the blade. The benefit of less effort and improved control is in your hands!
BIG PERFORMANCE IN A COMPACT DESIGN

BIG PERFORMANCE IN A COMPACT DESIGN

  • Strong lift and dig performance helps you get the job done faster. The compact radius design lets you access and work in the tightest areas. Dozer float allows for easy clean up.

BIG PERFORMANCE IN A COMPACT DESIGN

  • Strong lift and dig performance helps you get the job done faster. The compact radius design lets you access and work in the tightest areas. Dozer float allows for easy clean up.
SAFETY ON THE JOB SITE

SAFETY ON THE JOB SITE

  • Your safety is our top priority. The Cat mini excavator is designed to help keep you safe on the job. Courtesy work lights and a fluorescent retractable seat belt are just a couple of the safety features we’ve built into the machine.

SAFETY ON THE JOB SITE

  • Your safety is our top priority. The Cat mini excavator is designed to help keep you safe on the job. Courtesy work lights and a fluorescent retractable seat belt are just a couple of the safety features we’ve built into the machine.
SIMPLE SERVICE FOR LESS DOWNTIME

SIMPLE SERVICE FOR LESS DOWNTIME

  • Maintenance is quick and easy on the Cat mini excavator. Routine check points are easy to access at ground level through the side doors. The unique tilt up cab or canopy lets you reach additional service areas when needed.

SIMPLE SERVICE FOR LESS DOWNTIME

  • Maintenance is quick and easy on the Cat mini excavator. Routine check points are easy to access at ground level through the side doors. The unique tilt up cab or canopy lets you reach additional service areas when needed.
LOWER OPERATING COSTS

LOWER OPERATING COSTS

  • Equipped with features such as auto idle, auto engine shutdown, and efficient hydraulics with a variable displacement pump, the Cat mini excavator was designed with reducing your operating costs in mind.

LOWER OPERATING COSTS

  • Equipped with features such as auto idle, auto engine shutdown, and efficient hydraulics with a variable displacement pump, the Cat mini excavator was designed with reducing your operating costs in mind.
SUSTAINABILITY

SUSTAINABILITY

  • The Cat® C1.7 engine meets U.S. EPA Tier 4 Final, EU Stage V, and Japan 2014 emission standards.
  • Cat diesel engines are required to use ULSD (ultra-low sulfur diesel fuel with 15 ppm of sulfur or less) or ULSD blended with the following lower-carbon intensity fuels up to: 20% biodiesel FAME (fatty acid methyl ester) * or 100% renewable diesel, HVO (hydrotreated vegetable oil) and GTL (gas-to-liquid) fuels. Refer to guidelines for successful application. Please consult your Cat dealer or “Caterpillar Machine Fluids Recommendations” (SEBU6250) for details.
  • Auto Idle helps reduce unnecessary fuel burn and greenhouse gas emissions by allowing the engine to automatically go into idle mode when the machine is not working.
  • Engine Idle Shutdown Timer reduces fuel burn, greenhouse gas emissions and unnecessary idle time by shutting down the machine after a pre-set idling period.
  • Cruise control helps you maintain a constant speed as you travel across your jobsite saving fuel and reducing greenhouse gas emissions.
  • The Cat® Seat Belt Reminder provides audible and visual warnings to remind operators to buckle up during machine operation. The easy-to-install system is compatible with all equipment brands to help ensure operator safety.
  • Extended maintenance intervals not only reduce downtime but decrease the amount of fluid and filters that are replaced over the life of the machine.
  • Remote Flash minimizes downtime and maintenance time while keeping your asset running with maximum efficiency. Alerts for machine updates are sent virtually from your Cat dealer and updates can be deployed without a dealer technician needing to be onsite.(if equipped)
  • Remote Troubleshoot decreases maintenance time and keeps your machine running with maximum efficiency by allowing your Cat dealer to virtually test the machine while working. Once a problem is identified, a technician can fix it the first time, saving time and money.(if equipped)
  • Cat Grade with advanced 2D and 3D technologies combine advanced guidance with optional automated machine control helping you reach grading targets while reducing fuel burn and greenhouse gas emissions by improving efficiency, job site productivity, and accuracy. (if equipped).
*Engines with no aftertreatment devices can use higher blends, up to 100% biodiesel. (for use of blends higher than 20% biodiesel, consult your Cat dealer)

SUSTAINABILITY

  • The Cat® C1.7 engine meets U.S. EPA Tier 4 Final, EU Stage V, and Japan 2014 emission standards.
  • Cat diesel engines are required to use ULSD (ultra-low sulfur diesel fuel with 15 ppm of sulfur or less) or ULSD blended with the following lower-carbon intensity fuels up to: 20% biodiesel FAME (fatty acid methyl ester) * or 100% renewable diesel, HVO (hydrotreated vegetable oil) and GTL (gas-to-liquid) fuels. Refer to guidelines for successful application. Please consult your Cat dealer or “Caterpillar Machine Fluids Recommendations” (SEBU6250) for details.
  • Auto Idle helps reduce unnecessary fuel burn and greenhouse gas emissions by allowing the engine to automatically go into idle mode when the machine is not working.
  • Engine Idle Shutdown Timer reduces fuel burn, greenhouse gas emissions and unnecessary idle time by shutting down the machine after a pre-set idling period.
  • Cruise control helps you maintain a constant speed as you travel across your jobsite saving fuel and reducing greenhouse gas emissions.
  • The Cat® Seat Belt Reminder provides audible and visual warnings to remind operators to buckle up during machine operation. The easy-to-install system is compatible with all equipment brands to help ensure operator safety.
  • Extended maintenance intervals not only reduce downtime but decrease the amount of fluid and filters that are replaced over the life of the machine.
  • Remote Flash minimizes downtime and maintenance time while keeping your asset running with maximum efficiency. Alerts for machine updates are sent virtually from your Cat dealer and updates can be deployed without a dealer technician needing to be onsite.(if equipped)
  • Remote Troubleshoot decreases maintenance time and keeps your machine running with maximum efficiency by allowing your Cat dealer to virtually test the machine while working. Once a problem is identified, a technician can fix it the first time, saving time and money.(if equipped)
  • Cat Grade with advanced 2D and 3D technologies combine advanced guidance with optional automated machine control helping you reach grading targets while reducing fuel burn and greenhouse gas emissions by improving efficiency, job site productivity, and accuracy. (if equipped).
*Engines with no aftertreatment devices can use higher blends, up to 100% biodiesel. (for use of blends higher than 20% biodiesel, consult your Cat dealer)

Specifications

  • Engine
    Spec Value
    Net Power 23.6 HP
    Engine Model C1.7
    Bore 3.3 in
    Net Power @ 2,200 rpm - U.S. EPA Tier 4 Final/EU Stage V - ISO 9249/EEC 80/1269 23.6 HP
    Displacement 104 in³
    Note Net power is tested per ISO 9249 and 80/1269/EEC.
    Gross Power - 2,400 rpm - SAE J1995 24.7 HP
    Emissions Meets U.S. EPA Tier 4 Final and EU Stage V emission standards.
    Note (2) Net power advertised is the power available at the flywheel when the engine is at rated speed and rated power when 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
  • Weights
    Spec Value
    Operating Weight 9239 lb
    Minimum Operating Weight with Canopy* 7673 lb
    EU: CE Plate Weight with Cab*** 8004 lb
    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.
    Maximum Operating Weight with Cab** 9239 lb
    Maximum Operating Weight with Canopy** 8930 lb
    EU: CE Plate Weight with Canopy*** 7784 lb
    Minimum Operating Weight with Cab* 7982 lb
    Note (1) * Minimum Weight is based on fixed rubber tracks, operator, full fuel tank, standard stick, blade, bucket and no extra counterweight.
    Note (2) **Maximum Weight is based on steel tracks, operator, full fuel tank, long stick, blade, bucket and extra counterweight.
  • Dimensions - Long Stick
    Spec Value
    Dig Depth 122.4 in
    Track Belt/Shoe Width 11.8 in
    Maximum Reach 216.9 in
    O/A Track Width 70.1 in
    Maximum Blade Depth 21.1 in
    Tail Swing without Counterweight 35 in
    Stick Length 61.4 in
    Swing Bearing - Height 22.2 in
    Boom Swing - Left 640 mm
    Overall Shipping Length* 190.9 in
    Maximum Reach - Ground Level 211.8 in
    Maximum Dump Clearance 141.7 in
    Tail Swing with Counterweight 37.8 in
    O/A Shipping Height 97.6 in
    Note *Overall Shipping Length depends on blade position during shipment.
    Boom In Reach 73.2 in
    Maximum Dig Height 197.6 in
    Vertical Wall 94.1 in
    Boom Height - Shipping Position 68.9 in
    Maximum Blade Height 15.2 in
    O/A Undercarriage Length 87.4 in
    Boom Swing - Right 34.3 °
    Ground Clearance 12.2 in
  • Blade
    Spec Value
    Height 13.8 in
    Width 70.1 in
  • Dimensions - Standard Stick
    Spec Value
    Boom Swing - Right 34.3 °
    Tail Swing with Counterweight 37.8 in
    Stick Length 49.6 in
    Maximum Reach - Ground Level 202 in
    Boom Swing - Left 25.2 °
    Maximum Reach 207.5 in
    Track Belt/Shoe Width 11.8 in
    Maximum Dump Clearance 137.4 in
    Swing Bearing - Height 22.2 in
    Boom Height - Shipping Position 59.8 in
    O/A Shipping Height 97.6 in
    Overall Shipping Length* 189 in
    Boom In Reach 69.3 in
    Note *Overall Shipping Length depends on blade position during shipment.
    Tail Swing with Extra Counterweight 39.6 in
    Maximum Dig Height 193.7 in
    Vertical Wall 88.6 in
    Dig Depth 110.6 in
    O/A Undercarriage Length 87.4 in
    Tail Swing without Counterweight 35 in
    Maximum Blade Depth 21.1 in
    Maximum Blade Height 15.2 in
    Ground Clearance 12.2 in
  • Weight Increase from Minimum Configuration
    Spec Value
    Cab 309 lb
    Counterweight 221 lb
    Steel Tracks 287 lb
    Long Stick 44 lb
    Angle Blade 353 lb
    Extra Counterweight 551 lb
  • Service Refill Capacities
    Spec Value
    Fuel Tank 11.9 gal (US)
    Hydraulic Tank 5.3 gal (US)
    Cooling System 1.8 gal (US)
    Engine Oil 1.6 gal (US)
    Hydraulic System 11.9 gal (US)
  • Travel System
    Spec Value
    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
    Gradeability - Maximum 30 degrees
    Travel Speed - Low 1.6 mile/h
    Ground Pressure - Maximum Weight 5.2 psi
  • Hydraulic System
    Spec Value
    Pump Flow at 2,400 rpm 26 gal/min
    Auxiliary Circuit - Primary - Flow 18 gal/min
    Operating Pressure - Swing 2625 psi
    Type Load Sensing Hydraulics with Variable Displacement Piston Pump
    Auxiliary Circuit - Secondary - Pressure 3553 psi
    Digging Force - Stick - Long 3799 lbf
    Auxiliary Circuit - Secondary - Flow 7 gal/min
    Digging Force - Bucket 7419 lbf
    Operating Pressure - Travel 3553 psi
    Operating Pressure - Equipment 3553 psi
    Auxiliary Circuit - Primary - Pressure 3553 psi
    Digging Force - Stick - Standard 4249 lbf
    Note *Flow and pressure are not combinable. Under load, as flow rises pressure goes down.
  • Sound
    Spec Value
    Note European Union Directive ‚ "2000/14/EC"
    Operator Sound Pressure (ISO 6396:2008) 78 dB(A)
    Average Exterior Sound Pressure (ISO 6395:2008) 94 dB(A)
  • Swing System
    Spec Value
    Machine Swing Speed 9 r/min
    Boom Swing - Right 50 °
    Boom Swing - Left 75 °
  • Dimensions (Approximate) - Standard Stick
    Spec Value
    Tail Swing with Extra Counterweight 39.6 in
  • Certification - Cab and Canopy
    Spec Value
    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 (Approximate) - Long Stick
    Spec Value
    Tail Swing with Extra Counterweight 39.6 in
  • Sustainability
    Spec Value
    Recyclability 95%

Standard Equipment

ENGINE

  • Cat C1.7 NA Engine (U.S. EPA Tier 4 Final/EU Stage V)
  • Automatic Engine Idle
  • Automatic Engine Shutdown
  • Automatic Two Speed Travel
  • Fuel Water Separator
  • Power on Demand (not available in all regions)
  • Variable Displacement Piston Pump
  • Load Sensing/Flow Sharing Hydraulics

HYDRAULICS

  • Smart Tech Electronic Pump
  • Accumulator
  • Automatic Swing Brake
  • Auxiliary Hydraulic Lines
  • One and Two Way Auxiliary Flow
  • Continuous Auxiliary Flow
  • Auxiliary Line Quick Disconnects

OPERATOR ENVIRONMENT

  • Tilt-up Canopy or Tilt-Up Cab
  • Top Guard ISO 10262:1998 Level I
  • ROPS – ISO 12117-2:2008
  • TOPS – ISO 12117:1997
  • Stick Steer Mode
  • Travel Cruise Control
  • Control Pattern Changer (optional in some regions)
  • Adjustable Wrist Rests
  • Washable Floor Mat
  • Travel Pedals and Hand Levers
  • Machine Security
  • Machine Security – Standard Key with Pass Code
  • Fabric Suspension Seat (Cab only)
  • Vinyl Suspension Seat (Canopy only)
  • Hydraulic Lockout – All Controls
  • Retractable High Visibility Seat Belt (75 mm/3 in)
  • Coat Hook
  • Cup Holder
  • Storage Pocket
  • Skylight
  • 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
  • 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 – Pin-On
  • Thumb Ready (not available in all regions)
  • Certified Lifting Eye (optional in some regions)

ELECTRICAL

  • 12 Volt Battery
  • Software (machine and monitor)
  • Maintenance Free Battery
  • Signaling/Warning Horn
  • 12 Volt Power Socket

Optional Equipment

OPERATOR ENVIRONMENT

  • Cab with Air Conditioning
  • Cab with Heater
  • Control Pattern Changer (optional in some regions)
  • No Travel Pedals and Hand Levers
  • Machine Security – Push to Start with Key Fob/Pass Code
  • Vinyl Non-Suspension Seat (Canopy only)
  • LED Front Lights
  • LED Front and Rear Lights
  • LED Boom Light
  • Mirrors Left and Right
  • Radio – Bluetooth®, Auxiliary, Microphone, USB (charging only) (Cab only)

UNDERCARRIAGE

  • Steel Track (300 mm/11.8 in wide)

BOOM, STICK AND LINKAGES

  • Long Stick (1560 mm/61.4 in)
  • Front Shovel Capable – Dual Lock Manual Coupler
  • Attachments including Couplers, Thumbs, Buckets, Augers and Hammers
  • 2nd Auxiliary Hydraulic Lines
  • Boom Lowering Check Valve
  • Stick Lowering Check Valve
  • Hydraulic Quick Coupler Lines (not available in all regions)
  • Front Shovel Capable – Hydraulic Coupler

ELECTRICAL

  • Battery Disconnect
  • Product Link PL243 (regulations apply)
  • Product Link PLE643 (regulations apply)
  • Travel Alarm (standard in some regions)

GUARDING

  • Guard, Canopy
  • Guard, Mesh

OTHER

  • Bio Oil Capable
  • Eco Drain
  • Water Jacket Heater

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