303.5 CR

303.5 CR Mini Hydraulic Excavator

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.

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

  • 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

  • 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

  • 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

  • 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

  • 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

  • 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

  • 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)

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

Additional information

Offering Type

Engine - Net Power

17.6 kW ( 23.6 HP )

Weights - Operating Weight

4190 kg ( 9239 lb )

Dimensions - Long Stick - Dig Depth

3110 mm ( 122.4 in )

Engine Model

C1.7

Blade - Height

350 mm ( 13.8 in )

Dimensions - Long Stick - Track Belt/Shoe Width

300 mm ( 11.8 in )

Dimensions - Standard Stick - Boom Swing - Right

870 mm ( 34.3 ° )

Engine - Bore

84 mm ( 3.3 in )

Dimensions - Standard Stick - Tail Swing with Counterweight

960 mm ( 37.8 in )

Dimensions - Long Stick - Maximum Reach

5510 mm ( 216.9 in )

Weights - Minimum Operating Weight with Canopy*

3480 kg ( 7673 lb )

Weight Increase from Minimum Configuration - Cab

140 kg ( 309 lb )

Service Refill Capacities - Fuel Tank

45 l ( 11.9 gal (US) )

Dimensions - Long Stick - O/A Track Width

1780 mm ( 70.1 in )

Travel System - Ground Pressure - Minimum Weight

29.6 kPa ( 4.3 psi )

Travel System - Maximum Traction Force - High Speed

16.9 kN ( 3799 lbf )

Dimensions - Standard Stick - Stick Length

1260 mm ( 49.6 in )

Hydraulic System - Pump Flow at 2,400 rpm

100 l/min ( 26 gal/min )

Dimensions - Long Stick - Maximum Blade Depth

535 mm ( 21.1 in )

Service Refill Capacities - Hydraulic Tank

20 l ( 5.3 gal (US) )

Travel System - Maximum Traction Force - Low Speed

31 kN ( 6969 lbf )

Dimensions - Long Stick - Tail Swing without Counterweight

890 mm ( 35 in )

Dimensions - Standard Stick - Maximum Reach - Ground Level

5130 mm ( 202 in )

Hydraulic System - Auxiliary Circuit - Primary - Flow

70 l/min ( 18 gal/min )

Dimensions - Standard Stick - Boom Swing - Left

640 mm ( 25.2 ° )

Dimensions - Standard Stick - Maximum Reach

5270 mm ( 207.5 in )

Dimensions - Standard Stick - Track Belt/Shoe Width

300 mm ( 11.8 in )

Weight Increase from Minimum Configuration - Counterweight

100 kg ( 221 lb )

Dimensions - Standard Stick - Maximum Dump Clearance

3490 mm ( 137.4 in )

Dimensions - Standard Stick - Swing Bearing - Height

565 mm ( 22.2 in )

Dimensions - Long Stick - Stick Length

1560 mm ( 61.4 in )

Travel System - Travel Speed - High

4.5 km/h ( 2.8 mile/h )

Dimensions - Standard Stick - Boom Height - Shipping Position

1520 mm ( 59.8 in )

Dimensions - Long Stick - Swing Bearing - Height

565 mm ( 22.2 in )

Weights - EU: CE Plate Weight with Cab***

3630 kg ( 8004 lb )

Hydraulic System - Operating Pressure - Swing

181 bar ( 2625 psi )

Weight Increase from Minimum Configuration - Steel Tracks

130 kg ( 287 lb )

Weights - Maximum Operating Weight with Cab**

4190 kg ( 9239 lb )

Engine - Displacement

1.7 l ( 104 in³ )

Operator Sound Pressure (ISO 6396:2008)

78 dB(A) ( 78 dB(A) )

Dimensions - Long Stick - Boom Swing - Left

25.2 ° ( 640 mm )

Dimensions - Long Stick - Overall Shipping Length*

4850 mm ( 190.9 in )

Hydraulic System - Type

Load Sensing Hydraulics with Variable Displacement Piston Pump

Hydraulic System - Auxiliary Circuit - Secondary - Pressure

245 bar ( 3553 psi )

Swing System - Machine Swing Speed

9 r/min ( 9 r/min )

Weights - Maximum Operating Weight with Canopy**

4050 kg ( 8930 lb )

Dimensions - Long Stick - Maximum Reach - Ground Level

5380 mm ( 211.8 in )

Dimensions - Long Stick - Maximum Dump Clearance

3600 mm ( 141.7 in )

Dimensions - Long Stick - Tail Swing with Counterweight

960 mm ( 37.8 in )

Hydraulic System - Digging Force - Stick - Long

16.9 kN ( 3799 lbf )

Dimensions - Standard Stick - O/A Shipping Height

2480 mm ( 97.6 in )

Dimensions - Standard Stick - Overall Shipping Length*

4800 mm ( 189 in )

Travel System - Gradeability - Maximum

30 degrees

Dimensions - Standard Stick - Boom In Reach

1760 mm ( 69.3 in )

Dimensions - Long Stick - O/A Shipping Height

2480 mm ( 97.6 in )

Hydraulic System - Auxiliary Circuit - Secondary - Flow

25 l/min ( 7 gal/min )

Dimensions - Standard Stick - Tail Swing with Extra Counterweight

1005 mm ( 39.6 in )

Weights - EU: CE Plate Weight with Canopy***

3530 kg ( 7784 lb )

Dimensions - Standard Stick - Maximum Dig Height

4920 mm ( 193.7 in )

Travel System - Travel Speed - Low

2.6 km/h ( 1.6 mile/h )

Hydraulic System - Digging Force - Bucket

33 kN ( 7419 lbf )

Hydraulic System - Operating Pressure - Travel

245 bar ( 3553 psi )

Dimensions - Standard Stick - Vertical Wall

2250 mm ( 88.6 in )

Weights - Minimum Operating Weight with Cab*

3620 kg ( 7982 lb )

Hydraulic System - Operating Pressure - Equipment

245 bar ( 3553 psi )

Dimensions - Long Stick - Boom In Reach

1860 mm ( 73.2 in )

Dimensions - Long Stick - Maximum Dig Height

5020 mm ( 197.6 in )

Weight Increase from Minimum Configuration - Long Stick

20 kg ( 44 lb )

Dimensions - Standard Stick - Dig Depth

2810 mm ( 110.6 in )

Certification - Cab and Canopy - Roll Over Protective Structure (ROPS)

ISO 12117-2:2008

Service Refill Capacities - Cooling System

7 l ( 1.8 gal (US) )

Dimensions - Long Stick - Vertical Wall

2390 mm ( 94.1 in )

Service Refill Capacities - Engine Oil

6 l ( 1.6 gal (US) )

Dimensions - Standard Stick - O/A Undercarriage Length

2220 mm ( 87.4 in )

Average Exterior Sound Pressure (ISO 6395:2008)

94 dB(A) ( 94 dB(A) )

Service Refill Capacities - Hydraulic System

45 l ( 11.9 gal (US) )

Hydraulic System - Auxiliary Circuit - Primary - Pressure

245 bar ( 3553 psi )

Engine - Emissions

Meets U.S. EPA Tier 4 Final and EU Stage V emission standards.

Dimensions - Long Stick - Boom Height - Shipping Position

1750 mm ( 68.9 in )

Dimensions - Standard Stick - Tail Swing without Counterweight

890 mm ( 35 in )

Dimensions - Standard Stick - Maximum Blade Depth

535 mm ( 21.1 in )

Hydraulic System - Digging Force - Stick - Standard

18.9 kN ( 4249 lbf )

Dimensions - Long Stick - Maximum Blade Height

385 mm ( 15.2 in )

Certification - Cab and Canopy - Tip Over Protective Structure (TOPS)

ISO 12117:1997

Dimensions - Standard Stick - Maximum Blade Height

385 mm ( 15.2 in )

Travel System - Ground Pressure - Maximum Weight

35.7 kPa ( 5.2 psi )

Dimensions - Long Stick - O/A Undercarriage Length

2220 mm ( 87.4 in )

Dimensions - Long Stick - Boom Swing - Right

870 mm ( 34.3 ° )

Certification - Cab and Canopy - Top Guard

ISO 10262:1998 (Level I)

Engine - Stroke

100 mm ( 3.9 in )

Sustainability - Recyclability

95%

Weight Increase from Minimum Configuration - Angle Blade

160 kg ( 353 lb )

Dimensions - Long Stick - Ground Clearance

310 mm ( 12.2 in )

Blade - Width

1780 mm ( 70.1 in )

Swing System - Boom Swing - Right

50 ° ( 50 ° )

Swing System - Boom Swing - Left

75 ° ( 75 ° )

Dimensions - Standard Stick - Ground Clearance

310 mm ( 12.2 in )

Weight Increase from Minimum Configuration - Extra Counterweight

250 kg ( 551 lb )

Weights - Note (1)

* Minimum Weight is based on fixed rubber tracks, operator, full fuel tank, standard stick, blade, bucket and no extra counterweight.

Weights - Note (2)

**Maximum Weight is based on steel tracks, operator, full fuel tank, long stick, blade, bucket and extra counterweight.

Engine - Note

Net power is tested per ISO 9249 and 80/1269/EEC.

Weights - 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.

Hydraulic System - Note

*Flow and pressure are not combinable. Under load, as flow rises pressure goes down.

Sound - Note

European Union Directive ‚ "2000/14/EC"

Dimensions - Standard Stick - Note

*Overall Shipping Length depends on blade position during shipment.

Dimensions - Long Stick - Note

*Overall Shipping Length depends on blade position during shipment.

Dimensions (Approximate) - Standard Stick - Tail Swing with Extra Counterweight

1005 mm ( 39.6 in )

Engine - Net Power @ 2,200 rpm - U.S. EPA Tier 4 Final/EU Stage V - ISO 9249/EEC 80/1269

17.6 kW ( 23.6 HP )

Dimensions (Approximate) - Long Stick - Tail Swing with Extra Counterweight

1005 mm ( 39.6 in )

Engine - Gross Power - 2,400 rpm - SAE J1995

18.4 kW ( 24.7 HP )

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