303 CR Mini Excavator

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SPECS SUMMARY

Net Power23.6 HP (17.6 kW)
Operating Weight7817 lb (3545 kg)
Dig Depth116.1 in (2950 mm)
Engine ModelC1.1 Turbo
The Cat® 303 CR Mini Excavator delivers power and performance in a compact size to help you work in a wide range of applications.

Specifications

Net Power23.6 HP (17.6 kW)
Operating Weight7817 lb (3545 kg)
Dig Depth116.1 in (2950 mm)
Engine ModelC1.1 Turbo
Height13.8 in (350 mm)
Operating Pressure - Equipment3553 psi (245 bar)
Overall Shipping Length*179.5 in (4560 mm)
NoteEuropean Union Directive “2000/14/EC”
Maximum Operating Weight with Canopy**7552 lb (3425 kg)
Maximum Reach196.1 in (4980 mm)
Net Power - 2,400 rpm - ISO 9249, 80/1269/EEC23.6 HP (17.6 kW)
Width61 in (1550 mm)
Maximum Reach - Ground Level190.2 in (4830 mm)
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.
Machine Swing Speed9 r/min (9 r/min)
Stick Length61.4 in (1560 mm)
Top GuardISO 10262:1998 (Level I)
Stroke3.2 in (81 mm)
Steel Tracks276 lb (125 kg)
Maximum Reach - Ground Level201.2 in (5110 mm)
Digging Force - Bucket6385 lbf (28.4 kN)
Operating Pressure - Travel3553 psi (245 bar)
Digging Force - Stick - Standard3732 lbf (16.6 kN)
TypeLoad Sensing Hydraulics with Variable Displacement Piston Pump
EmissionsMeets U.S. EPA Tier 4 Final and EU Stage V emission standards.
Track Belt/Shoe Width11.8 in (300 mm)
Long Stick55 lb (25 kg)
Tail Swing without Counterweight30.5 in (775 mm)
Recyclability95%
Note*Overall Shipping Length depends on blade position during shipment.
Vertical Wall81.5 in (2070 mm)
Note (2)**Maximum Weight is based on steel tracks, operator, full fuel tank, long stick, blade, bucket and extra counterweight.
Stick Length49.6 in (1260 mm)
Digging Force - Stick - Long3327 lbf (14.8 kN)
Boom Swing - Left25.2 ° (640 °)
Displacement69 in³ (1.1 l)
Maximum Blade Height15.2 in (385 mm)
Note*Overall Shipping Length depends on blade position during shipment.
Maximum Dig Height183.1 in (4650 mm)
Auxiliary Circuit - Secondary - Flow7 gal/min (25 l/min)
Boom In Reach68.9 in (1750 mm)
NoteAdvertised power is tested per the specified standard in effect at the time of manufacture.
Auxiliary Circuit - Primary - Pressure3553 psi (245 bar)
Swing Bearing - Height22.4 in (570 mm)
Hydraulic System9.2 gal (US) (35 l)
Fuel Tank11.9 gal (US) (45 l)
Tip Over Protective Structure (TOPS)ISO 12117:1997
Engine Oil1.1 gal (US) (4 l)
Maximum Blade Depth21.1 in (535 mm)
Dig Depth104.3 in (2650 mm)
Minimum Operating Weight with Canopy*6670 lb (3025 kg)
Boom Height - Shipping Position75.6 in (1920 mm)
Boom In Reach74.2 in (1910 mm)
Maximum Reach206.3 in (5240 mm)
O/A Shipping Height97.6 in (2480 mm)
Track Belt/Shoe Width11.8 in (300 mm)
Boom Swing - Left25.2 ° (640 °)
Overall Shipping Length*177.6 in (4510 mm)
Cooling System1.1 gal (US) (4 l)
Vertical Wall71.7 in (1820 mm)
Bore3 in (77 mm)
Note (1)*Minimum Weight is based on fixed rubber tracks, operator, full fuel tank, standard stick, blade, bucket and no extra counterweight.
Boom Height - Shipping Position63 in (1600 mm)
Gradeability - Maximum30 degrees
Auxiliary Circuit - Primary - Flow17 gal/min (65 l/min)
Average Exterior Sound Pressure (ISO 6395:2008)94 dB(A) (94 dB(A))
O/A Undercarriage Length81.5 in (2070 mm)
Maximum Dig Height177.6 in (4510 mm)
Boom Swing - Right50 ° (50 °)
Tail Swing without Counterweight30.5 in (775 mm)
Maximum Blade Depth21.1 in (535 mm)
Track Shoe Width61 in (1550 mm)
Ground Pressure - Maximum Weight4.7 psi (32.3 kPa)
Maximum Dump Clearance124.8 in (3170 mm)
Tail Swing33.3 in (845 mm)
Track Width - Expanded61 in (1550 mm)
Maximum Traction Force - High Speed3305 lbf (14.7 kN)
Maximum Blade Height15.2 in (385 mm)
Travel Speed - Low1.6 mile/h (2.6 km/h)
Maximum Traction Force - Low Speed7059 lbf (31.4 kN)
Travel Speed - High2.8 mile/h (4.5 km/h)
Hydraulic Tank4.8 gal (US) (18 l)
Pump Flow at 2,400 rpm26 gal/min (100 l/min)
O/A Shipping Height97.6 in (2480 mm)
Auxiliary Circuit - Secondary - Pressure3553 psi (245 bar)
Swing Bearing - Height22.4 in (570 mm)
Operating Pressure - Swing2553 psi (176 bar)
O/A Undercarriage Length81.5 in (2070 mm)
Roll Over Protective Structure (ROPS)ISO 12117-2:2008
Ground Pressure - Minimum Weight4 psi (27.6 kPa)
Boom Swing - Right34.3 ° (870 °)
Maximum Dump Clearance130.3 in (3310 mm)
Tail Swing33.3 in (845 mm)
Boom Swing - Right34.3 ° (870 °)
Note* Flow and pressure are not combinable. Under load, as flow rises pressure goes down.

Benefits and Features

  • 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.

  • 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.

  • 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!

  • 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.

  • 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.

  • 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.

  • 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.

  • 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.

  • 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

  • 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
  • Smart Tech Electronic Pump
  • Accumulator
  • Automatic Swing Brake
  • Auxiliary Hydraulic Lines
  • One and Two Way Auxiliary Flow
  • Continuous Auxiliary Flow
  • Auxiliary Line Quick Disconnects
  • Top Guard ISO 10262:1998 Level I
  • 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)
  • Rubber Belt (300 mm/11.8 in wide)
  • Dozer Blade
  • Dozer Blade Float
  • Tie Downs on Track Frame
  • 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)
  • 12 Volt Battery
  • Software (machine and monitor)
  • Maintenance Free Battery
  • Signaling/Warning Horn
  • 12 Volt Power Socket

Optional Equipment

  • 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)
  • Seat Belt Reminder System
  • Steel Track (300 mm/11.8 in wide)
  • 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)
  • Battery Disconnect
  • Product Link PL243 (regulations apply)
  • Product Link PLE643 (regulations apply)
  • Travel Alarm (standard in some regions)
  • Polycarbonate Front Guard (ISO 10262:1998 Level I and EN356 P5A)
  • Polycarbonate Half Height Front Guard (Canopy only)
  • Bio Oil Capable
  • Eco Drain
  • Water Jacket Heater

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