303 CR

303 CR Mini Hydraulic Excavator

The Cat® 303 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 with optional seat belt reminder system 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.

UNMATCHED DEALER SUPPORT

  • Your Cat dealer is here to help you reach your business goals. From providing equipment solutions to operator training to service needs and beyond, your Cat dealer is ready to help.

SUSTAINABILITY

  • The Cat® C1.1 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)

*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 C1.1 Turbo 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
GUARDING
  • Top Guard ISO 10262:1998 Level I
OPERATOR ENVIRONMENT
  • Tilt-up Canopy or Tilt-Up Cab
  • ROPS – ISO 12117-2:2008
  • TOPS – ISO 12117:1997
  • Next Generation Advanced Monitor
    – Touch Screen
    – Site Reference System
    – High Definition Camera Capable (IP68 and IP69K)
    – Numeric Security Code
  • 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)
UNDERCARRIAGE
  • Rubber Belt (300 mm/11.8 in wide)
  • Dozer Blade
  • Dozer Blade Float
  • Tie Downs on Track Frame
BOOM, STICK AND LINKAGES
  • One Piece Boom (2200 mm/86.6 in)
  • Standard Stick (1260 mm/49.6 in)
  • Front Shovel Capable – Hydraulic Coupler
  • 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

3545 kg ( 7817 lb )

Dimensions - Long Stick - Dig Depth

2950 mm ( 116.1 in )

Engine Model

C1.1 Turbo

Blade - Height

350 mm ( 13.8 in )

Dimensions - Standard Stick - Maximum Blade Depth

535 mm ( 21.1 in )

Dimensions - Standard Stick - Tail Swing without Counterweight

775 mm ( 30.5 in )

Swing System - Boom Swing - Right

50 ° ( 50 ° )

Dimensions - Standard Stick - Maximum Dig Height

4510 mm ( 177.6 in )

Dimensions - Standard Stick - O/A Undercarriage Length

2070 mm ( 81.5 in )

Average Exterior Sound Pressure (ISO 6395:2008)

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

Hydraulic System - Auxiliary Circuit - Primary - Flow

65 l/min ( 17 gal/min )

Travel System - Gradeability - Maximum

30 degrees

Dimensions - Standard Stick - Boom Height - Shipping Position

1600 mm ( 63 in )

Engine - Bore

77 mm ( 3 in )

Dimensions - Long Stick - Boom Height - Shipping Position

1920 mm ( 75.6 in )

Dimensions - Standard Stick - Vertical Wall

1820 mm ( 71.7 in )

Service Refill Capacities - Cooling System

4 l ( 1.1 gal (US) )

Dimensions - Long Stick - Tail Swing with Counterweight

890 mm ( 35 in )

Dimensions - Standard Stick - Overall Shipping Length*

4510 mm ( 177.6 in )

Dimensions - Standard Stick - Boom Swing - Left

640 mm ( 25.2 in )

Dimensions - Long Stick - Track Belt/Shoe Width

300 mm ( 11.8 in )

Dimensions - Standard Stick - O/A Shipping Height

2480 mm ( 97.6 in )

Dimensions - Long Stick - Maximum Reach

5240 mm ( 206.3 in )

Weight Increase from Minimum Configuration - Counterweight

100 kg ( 221 lb )

Dimensions - Long Stick - Boom In Reach

1910 mm ( 74.2 in )

Weight Increase from Minimum Configuration - Cab

115 kg ( 254 lb )

Travel System - Ground Pressure - Maximum Weight

32.3 kPa ( 4.7 psi )

Hydraulic System - Auxiliary Circuit - Secondary - Pressure

245 bar ( 3553 psi )

Dimensions - Long Stick - Boom Swing - Right

870 mm ( 34.3 in )

Dimensions - Long Stick - Tail Swing

845 mm ( 33.3 in )

Dimensions - Long Stick - Maximum Dump Clearance

3310 mm ( 130.3 in )

Dimensions - Standard Stick - Boom Swing - Right

870 mm ( 34.3 in )

Dimensions - Long Stick - Ground Clearance

310 mm ( 12.2 in )

Travel System - Ground Pressure - Minimum Weight

27.6 kPa ( 4 psi )

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

ISO 12117-2:2008

Dimensions - Standard Stick - Tail Swing with Extra Counterweight

890 mm ( 35 in )

Dimensions - Long Stick - O/A Undercarriage Length

2070 mm ( 81.5 in )

Hydraulic System - Operating Pressure - Swing

176 bar ( 2553 psi )

Dimensions - Standard Stick - Swing Bearing - Height

570 mm ( 22.4 in )

Dimensions - Long Stick - O/A Shipping Height

2480 mm ( 97.6 in )

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

3080 kg ( 6791 lb )

Dimensions - Standard Stick - Tail Swing

845 mm ( 33.3 in )

Hydraulic System - Pump Flow at 2,400 rpm

100 l/min ( 26 gal/min )

Service Refill Capacities - Hydraulic Tank

18 l ( 4.8 gal (US) )

Travel System - Travel Speed - High

4.5 km/h ( 2.8 mile/h )

Travel System - Maximum Traction Force - Low Speed

31.4 kN ( 7059 lbf )

Travel System - Travel Speed - Low

2.6 km/h ( 1.6 mile/h )

Dimensions - Standard Stick - Maximum Blade Height

385 mm ( 15.2 in )

Travel System - Maximum Traction Force - High Speed

14.7 kN ( 3305 lbf )

Dimensions - Long Stick - Track Width - Expanded

1550 mm ( 61 in )

Dimensions - Standard Stick - Dig Depth

2650 mm ( 104.3 in )

Dimensions - Standard Stick - Maximum Dump Clearance

3170 mm ( 124.8 in )

Weights - Minimum Operating Weight with Canopy*

3025 kg ( 6670 lb )

Operator Sound Pressure (ISO 6396:2008)

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

Service Refill Capacities - Engine Oil

4 l ( 1.1 gal (US) )

Dimensions - Long Stick - Maximum Blade Depth

535 mm ( 21.1 in )

Hydraulic System - Type

Load Sensing Hydraulics with Variable Displacement Piston Pump

Hydraulic System - Digging Force - Stick - Standard

16.6 kN ( 3732 lbf )

Hydraulic System - Operating Pressure - Travel

245 bar ( 3553 psi )

Hydraulic System - Digging Force - Bucket

28.4 kN ( 6385 lbf )

Dimensions - Long Stick - Maximum Reach - Ground Level

5110 mm ( 201.2 in )

Weights - Minimum Operating Weight with Cab*

3140 kg ( 6924 lb )

Weight Increase from Minimum Configuration - Steel Tracks

125 kg ( 276 lb )

Swing System - Machine Swing Speed

9 r/min ( 9 r/min )

Certification - Cab and Canopy - Top Guard

ISO 10262:1998 (Level I)

Dimensions - Long Stick - Stick Length

1560 mm ( 61.4 in )

Hydraulic System - Operating Pressure - Equipment

245 bar ( 3553 psi )

Dimensions - Standard Stick - Maximum Reach - Ground Level

4830 mm ( 190.2 in )

Blade - Width

1550 mm ( 61 in )

Engine - Net Power - 2,400 rpm - ISO 9249, 80/1269/EEC

17.6 kW ( 23.6 HP )

Swing System - Boom Swing - Left

75 ° ( 75 ° )

Dimensions - Standard Stick - Maximum Reach

4980 mm ( 196.1 in )

Weights - Maximum Operating Weight with Canopy**

3425 kg ( 7552 lb )

Dimensions - Long Stick - Overall Shipping Length*

4560 mm ( 179.5 in )

Engine - Emissions

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

Engine - Stroke

81 mm ( 3.2 in )

Dimensions - Standard Stick - Ground Clearance

310 mm ( 12.2 in )

Weight Increase from Minimum Configuration - Long Stick

25 kg ( 55 lb )

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

3180 kg ( 7012 lb )

Dimensions - Long Stick - Maximum Dig Height

4650 mm ( 183.1 in )

Weight Increase from Minimum Configuration - Extra Counterweight

250 kg ( 551 lb )

Dimensions - Standard Stick - Track Belt/Shoe Width

300 mm ( 11.8 in )

Weights - Maximum Operating Weight with Cab**

3545 kg ( 7817 lb )

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

ISO 12117:1997

Service Refill Capacities - Fuel Tank

45 l ( 11.9 gal (US) )

Service Refill Capacities - Hydraulic System

35 l ( 9.2 gal (US) )

Dimensions - Long Stick - Swing Bearing - Height

570 mm ( 22.4 in )

Hydraulic System - Auxiliary Circuit - Primary - Pressure

245 bar ( 3553 psi )

Dimensions - Standard Stick - Boom In Reach

1750 mm ( 68.9 in )

Hydraulic System - Auxiliary Circuit - Secondary - Flow

25 l/min ( 7 gal/min )

Dimensions - Long Stick - Tail Swing without Counterweight

775 mm ( 30.5 in )

Dimensions - Long Stick - Maximum Blade Height

385 mm ( 15.2 in )

Engine - Displacement

1.1 l ( 69 in³ )

Dimensions - Long Stick - Boom Swing - Left

640 mm ( 25.2 in )

Hydraulic System - Digging Force - Stick - Long

14.8 kN ( 3327 lbf )

Dimensions - Standard Stick - Stick Length

1260 mm ( 49.6 in )

Dimensions - Long Stick - Vertical Wall

2070 mm ( 81.5 in )

Engine - Gross Power - 2,400 rpm - SAE J1995:2014

18.4 kW ( 24.7 HP )

Sustainability - Recyclability

95%

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

Advertised power is tested per the specified standard in effect at the time of manufacture.

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 - Standard Stick - Track Shoe Width

1550 mm ( 61 in )

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