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.

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Net Power 23.6 HP
Engine Model C1.1 Turbo
Bore 3 in
Net Power - 2,400 rpm - ISO 9249, 80/1269/EEC 23.6 HP
Emissions Meets U.S. EPA Tier 4 Final and EU Stage V emission standards.
Stroke 3.2 in
Note Advertised power is tested per the specified standard in effect at the time of manufacture.
Displacement 69 in³
Gross Power - 2,400 rpm - SAE J1995:2014 24.7 HP
Operating Weight 7817 lb
Note (1) *Minimum Weight is based on fixed rubber tracks, operator, full fuel tank, standard stick, blade, bucket and no extra counterweight.
EU: CE Plate Weight with Canopy*** 6791 lb
Minimum Operating Weight with Canopy* 6670 lb
Minimum Operating Weight with Cab* 6924 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 Canopy** 7552 lb
EU: CE Plate Weight with Cab*** 7012 lb
Maximum Operating Weight with Cab** 7817 lb
Note (2) **Maximum Weight is based on steel tracks, operator, full fuel tank, long stick, blade, bucket and extra counterweight.
Dig Depth 116.1 in
Boom Height - Shipping Position 75.6 in
Tail Swing with Counterweight 35 in
Track Belt/Shoe Width 11.8 in
Maximum Reach 206.3 in
Boom In Reach 74.2 in
Boom Swing - Right 34.3 in
Tail Swing 33.3 in
Maximum Dump Clearance 130.3 in
Ground Clearance 12.2 in
O/A Undercarriage Length 81.5 in
O/A Shipping Height 97.6 in
Track Width - Expanded 61 in
Maximum Blade Depth 21.1 in
Maximum Reach - Ground Level 201.2 in
Stick Length 61.4 in
Overall Shipping Length* 179.5 in
Maximum Dig Height 183.1 in
Swing Bearing - Height 22.4 in
Note *Overall Shipping Length depends on blade position during shipment.
Tail Swing without Counterweight 30.5 in
Maximum Blade Height 15.2 in
Boom Swing - Left 25.2 in
Vertical Wall 81.5 in
Height 13.8 in
Width 61 in
Maximum Blade Depth 21.1 in
Tail Swing without Counterweight 30.5 in
Maximum Dig Height 177.6 in
O/A Undercarriage Length 81.5 in
Boom Height - Shipping Position 63 in
Vertical Wall 71.7 in
Overall Shipping Length* 177.6 in
Boom Swing - Left 25.2 in
O/A Shipping Height 97.6 in
Track Shoe Width 61 in
Boom Swing - Right 34.3 in
Tail Swing with Extra Counterweight 35 in
Swing Bearing - Height 22.4 in
Tail Swing 33.3 in
Maximum Blade Height 15.2 in
Dig Depth 104.3 in
Maximum Dump Clearance 124.8 in
Maximum Reach - Ground Level 190.2 in
Maximum Reach 196.1 in
Ground Clearance 12.2 in
Track Belt/Shoe Width 11.8 in
Boom In Reach 68.9 in
Stick Length 49.6 in
Note *Overall Shipping Length depends on blade position during shipment.
Boom Swing - Right 50 °
Machine Swing Speed 9 r/min
Boom Swing - Left 75 °
Average Exterior Sound Pressure (ISO 6395:2008) 94 dB(A)
Operator Sound Pressure (ISO 6396:2008) 78 dB(A)
Note European Union Directive “2000/14/EC”
Auxiliary Circuit - Primary - Flow 17 gal/min
Auxiliary Circuit - Secondary - Pressure 3553 psi
Operating Pressure - Swing 2553 psi
Pump Flow at 2,400 rpm 26 gal/min
Type Load Sensing Hydraulics with Variable Displacement Piston Pump
Digging Force - Stick - Standard 3732 lbf
Operating Pressure - Travel 3553 psi
Digging Force - Bucket 6385 lbf
Operating Pressure - Equipment 3553 psi
Auxiliary Circuit - Primary - Pressure 3553 psi
Auxiliary Circuit - Secondary - Flow 7 gal/min
Digging Force - Stick - Long 3327 lbf
Note * Flow and pressure are not combinable. Under load, as flow rises pressure goes down.
Gradeability - Maximum 30 degrees
Ground Pressure - Maximum Weight 4.7 psi
Ground Pressure - Minimum Weight 4 psi
Travel Speed - High 2.8 mile/h
Maximum Traction Force - Low Speed 7059 lbf
Travel Speed - Low 1.6 mile/h
Maximum Traction Force - High Speed 3305 lbf
Cooling System 1.1 gal (US)
Hydraulic Tank 4.8 gal (US)
Engine Oil 1.1 gal (US)
Fuel Tank 11.9 gal (US)
Hydraulic System 9.2 gal (US)
Counterweight 221 lb
Cab 254 lb
Steel Tracks 276 lb
Long Stick 55 lb
Extra Counterweight 551 lb
Roll Over Protective Structure (ROPS) ISO 12117-2:2008
Top Guard ISO 10262:1998 (Level I)
Tip Over Protective Structure (TOPS) ISO 12117:1997
Recyclability 95%
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
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)
  • Seat Belt Reminder System
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