303 CR

303 CR Mini Hydraulic Excavator

The Cat 303 CR Mini Excavator delivers high performance in an under 2-ton compact size machine for construction, landscaping and demolition jobs.

303 CR Mini Hydraulic Excavator

DESCRIPTION

The Cat® 303 CR Mini Excavator delivers power and performance in a compact size to help you work in a wide range of applications.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.

303 CR Mini Excavator
303 CR Mini Excavator

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!

303 CR Mini Excavator
303 CR Mini Excavator

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.

303 CR Mini Excavator
303 CR Mini Excavator

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.

303 CR Mini Excavator

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)

303 CR Mini Excavator
  • Standard Equipment
  • Optional Equipment
  • Specs
  • Docs

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
  • 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
    • 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

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)
  • ELECTRICAL
    • Battery Disconnect
    • Product Link PL243 (regulations apply)
    • Product Link PLE643 (regulations apply)
    • Travel Alarm (standard in some regions)
  • GUARDING
    • Polycarbonate Front Guard (ISO 10262:1998 Level I and EN356 P5A)
    • Polycarbonate Half Height Front Guard (Canopy only)
  • OTHER
    • Bio Oil Capable
    • Eco Drain
    • Water Jacket Heater

Specs

Overview

Long Name:
303 CR Mini Hydraulic Excavator
Name:
303 CR
Brand:
Caterpillar
Status:
Current

Engine

Net Power
23.6 HP / 17.6 kW

Weights

Operating Weight
7817 lb / 3545 kg

Dimensions - Long Stick

Dig Depth
116.1 in / 2950 mm

Engine

Engine Model
C1.1 Turbo

Blade

Height
13.8 in / 350 mm

Dimensions - Standard Stick

Maximum Blade Depth
21.1 in / 535 mm
Tail Swing without Counterweight
30.5 in / 775 mm

Swing System

Boom Swing - Right
50 ° / 50 °

Dimensions - Standard Stick

Maximum Dig Height
177.6 in / 4510 mm
O/A Undercarriage Length
81.5 in / 2070 mm

Sound

Average Exterior Sound Pressure (ISO 6395:2008)
94 dB(A) / 94 dB(A)

Hydraulic System

Auxiliary Circuit - Primary - Flow
17 gal/min / 65 l/min

Travel System

Gradeability - Maximum
30 degrees

Dimensions - Standard Stick

Boom Height - Shipping Position
63 in / 1600 mm

Engine

Bore
3 in / 77 mm

Dimensions - Long Stick

Boom Height - Shipping Position
75.6 in / 1920 mm

Dimensions - Standard Stick

Vertical Wall
71.7 in / 1820 mm

Service Refill Capacities

Cooling System
1.1 gal (US) / 4 l

Dimensions - Long Stick

Tail Swing with Counterweight
35 in / 890 mm

Dimensions - Standard Stick

Overall Shipping Length*
177.6 in / 4510 mm
Boom Swing - Left
25.2 in / 640 mm

Dimensions - Long Stick

Track Belt/Shoe Width
11.8 in / 300 mm

Dimensions - Standard Stick

O/A Shipping Height
97.6 in / 2480 mm

Dimensions - Long Stick

Maximum Reach
206.3 in / 5240 mm

Weight Increase from Minimum Configuration

Counterweight
221 lb / 100 kg

Dimensions - Long Stick

Boom In Reach
74.2 in / 1910 mm

Dimensions - Standard Stick

Track Shoe Width
61 in / 1550 mm

Weights

Note (1)
*Minimum Weight is based on fixed rubber tracks, operator, full fuel tank, standard stick, blade, bucket and no extra counterweight.

Weight Increase from Minimum Configuration

Cab
254 lb / 115 kg

Travel System

Ground Pressure - Maximum Weight
4.7 psi / 32.3 kPa

Hydraulic System

Auxiliary Circuit - Secondary - Pressure
3553 psi / 245 bar

Dimensions - Long Stick

Boom Swing - Right
34.3 in / 870 mm
Tail Swing
33.3 in / 845 mm
Maximum Dump Clearance
130.3 in / 3310 mm

Dimensions - Standard Stick

Boom Swing - Right
34.3 in / 870 mm

Dimensions - Long Stick

Ground Clearance
12.2 in / 310 mm

Travel System

Ground Pressure - Minimum Weight
4 psi / 27.6 kPa

Certification - Cab and Canopy

Roll Over Protective Structure (ROPS)
ISO 12117-2:2008

Dimensions - Standard Stick

Tail Swing with Extra Counterweight
35 in / 890 mm

Dimensions - Long Stick

O/A Undercarriage Length
81.5 in / 2070 mm

Hydraulic System

Operating Pressure - Swing
2553 psi / 176 bar

Dimensions - Standard Stick

Swing Bearing - Height
22.4 in / 570 mm

Dimensions - Long Stick

O/A Shipping Height
97.6 in / 2480 mm

Weights

EU: CE Plate Weight with Canopy***
6791 lb / 3080 kg

Engine

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.

Dimensions - Standard Stick

Tail Swing
33.3 in / 845 mm

Hydraulic System

Pump Flow at 2,400 rpm
26 gal/min / 100 l/min

Service Refill Capacities

Hydraulic Tank
4.8 gal (US) / 18 l

Travel System

Travel Speed - High
2.8 mile/h / 4.5 km/h
Maximum Traction Force - Low Speed
7059 lbf / 31.4 kN
Travel Speed - Low
1.6 mile/h / 2.6 km/h

Dimensions - Standard Stick

Maximum Blade Height
15.2 in / 385 mm

Travel System

Maximum Traction Force - High Speed
3305 lbf / 14.7 kN

Dimensions - Long Stick

Track Width - Expanded
61 in / 1550 mm

Dimensions - Standard Stick

Dig Depth
104.3 in / 2650 mm
Maximum Dump Clearance
124.8 in / 3170 mm

Weights

Minimum Operating Weight with Canopy*
6670 lb / 3025 kg

Service Refill Capacities

Engine Oil
1.1 gal (US) / 4 l

Sound

Operator Sound Pressure (ISO 6396:2008)
78 dB(A) / 78 dB(A)

Engine

Gross Power - SAE J1995:2014
24.7 HP / 18.4 kW

Dimensions - Long Stick

Maximum Blade Depth
21.1 in / 535 mm

Hydraulic System

Type
Load Sensing Hydraulics with Variable Displacement Piston Pump
Digging Force - Stick - Standard
3732 lbf / 16.6 kN
Operating Pressure - Travel
3553 psi / 245 bar
Digging Force - Bucket
6385 lbf / 28.4 kN

Dimensions - Long Stick

Maximum Reach - Ground Level
201.2 in / 5110 mm

Weights

Minimum Operating Weight with Cab*
6924 lb / 3140 kg

Weight Increase from Minimum Configuration

Steel Tracks
276 lb / 125 kg

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
61.4 in / 1560 mm

Hydraulic System

Operating Pressure - Equipment
3553 psi / 245 bar

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.

Dimensions - Standard Stick

Maximum Reach - Ground Level
190.2 in / 4830 mm

Blade

Width
61 in / 1550 mm

Engine

Net Power - 2,400 rpm - ISO 9249, 80/1269/EEC
23.6 HP / 17.6 kW

Swing System

Boom Swing - Left
75 ° / 75 °

Dimensions - Standard Stick

Maximum Reach
196.1 in / 4980 mm

Weights

Maximum Operating Weight with Canopy**
7552 lb / 3425 kg

Sound

Note
European Union Directive “2000/14/EC”

Dimensions - Long Stick

Overall Shipping Length*
179.5 in / 4560 mm

Engine

Emissions
Meets U.S. EPA Tier 4 Final and EU Stage V emission standards.
Stroke
3.2 in / 81 mm

Dimensions - Standard Stick

Ground Clearance
12.2 in / 310 mm

Weight Increase from Minimum Configuration

Long Stick
55 lb / 25 kg

Weights

EU: CE Plate Weight with Cab***
7012 lb / 3180 kg

Dimensions - Long Stick

Maximum Dig Height
183.1 in / 4650 mm

Weight Increase from Minimum Configuration

Extra Counterweight
551 lb / 250 kg

Dimensions - Standard Stick

Track Belt/Shoe Width
11.8 in / 300 mm

Weights

Maximum Operating Weight with Cab**
7817 lb / 3545 kg

Certification - Cab and Canopy

Tip Over Protective Structure (TOPS)
ISO 12117:1997

Service Refill Capacities

Fuel Tank
11.9 gal (US) / 45 l
Hydraulic System
9.2 gal (US) / 35 l

Dimensions - Long Stick

Swing Bearing - Height
22.4 in / 570 mm

Hydraulic System

Auxiliary Circuit - Primary - Pressure
3553 psi / 245 bar

Engine

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

Dimensions - Standard Stick

Boom In Reach
68.9 in / 1750 mm

Hydraulic System

Auxiliary Circuit - Secondary - Flow
7 gal/min / 25 l/min

Dimensions - Long Stick

Note
*Overall Shipping Length depends on blade position during shipment.
Tail Swing without Counterweight
30.5 in / 775 mm
Maximum Blade Height
15.2 in / 385 mm

Engine

Displacement
69 in³ / 1.1 l

Dimensions - Long Stick

Boom Swing - Left
25.2 in / 640 mm

Hydraulic System

Digging Force - Stick - Long
3327 lbf / 14.8 kN

Dimensions - Standard Stick

Stick Length
49.6 in / 1260 mm

Weights

Note (2)
**Maximum Weight is based on steel tracks, operator, full fuel tank, long stick, blade, bucket and extra counterweight.

Dimensions - Long Stick

Vertical Wall
81.5 in / 2070 mm

Dimensions - Standard Stick

Note
*Overall Shipping Length depends on blade position during shipment.

Sustainability

Recyclability
95%

Hydraulic System

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