303.5 CR Mini Hydraulic Excavator

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)

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
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 u00b0)
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)
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)
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 - 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 u00b0)
Maximum Reach 5270 mm (207.5 in)
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)
Swing Bearing - Height 565 mm (22.2 in)
Sound
Note European Union Directive u201a "2000/14/EC"
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)
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.
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 inu00b3)
Sound
Operator Sound Pressure (ISO 6396:2008) 78 dB(A) (78 dB(A))
Dimensions - Long Stick
Boom Swing - Left 25.2 u00b0 (640 mm)
Overall Shipping Length* 4850 mm (190.9 in)
Hydraulic System
Type Load Sensing Hydraulics with Variable Displacement Piston Pump
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)
Maximum Dump Clearance 3600 mm (141.7 in)
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)
Overall Shipping Length* 4800 mm (189 in)
Travel System
Gradeability - Maximum 30 degrees
Dimensions - Standard Stick
Boom In Reach 1760 mm (69.3 in)
Engine
Note Net power is tested per ISO 9249 and 80/1269/EEC.
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
Note *Overall Shipping Length depends on blade position during shipment.
Tail Swing with Extra Counterweight 1005 mm (39.6 in)
Engine
Gross Power - 2,400 rpm - SAE J1995 18.4 kW (24.7 hp)
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)
Dimensions - Long Stick
Note *Overall Shipping Length depends on blade position during shipment.
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)
Maximum Dig Height 5020 mm (197.6 in)
Weight Increase from Minimum Configuration
Long Stick 20 kg (44 lb)
Weights
Note (1) * Minimum Weight is based on fixed rubber tracks, operator, full fuel tank, standard stick, blade, bucket and no extra counterweight.
Dimensions - Standard Stick
Dig Depth 2810 mm (110.6 in)
Dimensions (Approximate) - Standard Stick
Tail Swing with Extra Counterweight 1005 mm (39.6 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)
Sound
Average Exterior Sound Pressure (ISO 6395:2008) 94 dB(A) (94 dB(A))
Weights
Note (2) **Maximum Weight is based on steel tracks, operator, full fuel tank, long stick, blade, bucket and extra counterweight.
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)
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)
Boom Swing - Right 870 mm (34.3 u00b0)
Dimensions (Approximate) - Long Stick
Tail Swing with Extra Counterweight 1005 mm (39.6 in)
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.
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)
Hydraulic System
Note *Flow and pressure are not combinable. Under load, as flow rises pressure goes down.
Swing System
Boom Swing - Right 50 u00b0 (50 u00b0)
Boom Swing - Left 75 u00b0 (75 u00b0)
Dimensions - Standard Stick
Ground Clearance 310 mm (12.2 in)
Weight Increase from Minimum Configuration
Extra Counterweight 250 kg (551 lb)

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

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)
    • Front Shovel Capable – Hydraulic Coupler
  • ELECTRICAL
    • Battery Disconnect
    • Product Link PL243 (regulations apply)
    • Product Link PLE643 (regulations apply)
    • Travel Alarm (standard in some regions)
  • GUARDING
    • Guard, Canopy
    • Guard, Mesh
  • OTHER
    • Bio Oil Capable
    • Eco Drain
    • Water Jacket Heater

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