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303.5 CR Mini Hydraulic Excavator

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303.5 CR Mini Hydraulic Excavator

Overview

The Cat® 303.5 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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303.5 CR Mini Hydraulic Excavator

303.5 CR Mini Hydraulic Excavator

303.5 CR Mini Hydraulic Excavator

303.5 CR Mini Hydraulic Excavator

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303.5 CR Mini Hydraulic Excavator
Video Introducing the Next Generation Cat 302.7 CR, 303 CR and 303.5 CR Mini Excavators

Introducing the Next Generation Cat 302.7 CR, 303 CR and 303.5 CR Mini Excavators
Video Overview of the Next Generation Cat 302.7 CR, 303 CR and 303.5 CR Mini Excavators

Overview of the Next Generation Cat 302.7 CR, 303 CR and 303.5 CR Mini Excavators
Video Standard Monitor on the Next Generation Cat Mini Excavators

Standard Monitor on the Next Generation Cat Mini Excavators
Video How to Select the Correct 3 Ton Cat Next Generation Mini Excavator

How to Select the Correct 3 Ton Cat Next Generation Mini Excavator
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https://s7d2.scene7.com/is/image/Caterpillar/CM20210525-52865-02b81

  • 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.
https://s7d2.scene7.com/is/image/Caterpillar/CM20210525-fd3c7-ffa21

  • 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.
https://s7d2.scene7.com/is/image/Caterpillar/CM20210525-69955-e8962

  • 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!
https://s7d2.scene7.com/is/image/Caterpillar/CM20210601-d19ca-0324d

  • 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.
https://s7d2.scene7.com/is/image/Caterpillar/CM20210107-c3fac-279e9

  • 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.
https://s7d2.scene7.com/is/image/Caterpillar/CM20210107-7ce03-3896d

  • 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.
https://s7d2.scene7.com/is/image/Caterpillar/CM20210601-caab7-a490b

  • 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.
https://s7d2.scene7.com/is/image/Caterpillar/CM20210602-ec81e-9856f

  • 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)
Net Power
23.6hp
Engine Model
C1.7
Net Power @ 2,200 rpm – U.S. EPA Tier 4 Final/EU Stage V – ISO 9249/EEC 80/1269
23.6hp
Net Power – ISO 9249
24.7hp
Bore
3.3in
Stroke
3.9in
Displacement
104in³
Emissions
Meets U.S. EPA Tier 4 Final and EU Stage V emission standards.
Note
Advertised power is tested per the specified standard in effect at the time of manufacture.
Note (1)
Net power advertised is the power available at the flywheel when the engine is at the rated speed of 2,200 rpm and the engine is installed with the factory configured fan, air intake system, exhaust system and alternator with a minimum alternator load.
Operating Weight
9239lb
Minimum Operating Weight with Canopy*
7673lb
Maximum Operating Weight with Canopy**
8930lb
Minimum Operating Weight with Cab*
7982lb
Maximum Operating Weight with Cab**
9239lb
EU: CE Plate Weight with Canopy***
7784lb
EU: CE Plate Weight with Cab***
8004lb
Note (1)
*Minimum Weight is based on fixed rubber tracks, operator, full fuel tank, standard stick, blade, no bucket and extra counterweight.
Note (2)
**Maximum Weight is based on steel tracks, operator, full fuel tank, long stick, blade, no bucket and extra counterweight.
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.
Dig Depth
122.4in
Vertical Wall
94.1in
Maximum Reach – Ground Level
211.8in
Maximum Reach
216.9in
Maximum Dig Height
197.6in
Maximum Dump Clearance
141.7in
Boom In Reach
73.2in
Tail Swing without Counterweight
35in
Tail Swing – with Extra Counterweight
39.6in
Maximum Blade Depth
21.1in
Maximum Blade Height
15.2in
Boom Height – Shipping Position
68.9in
O/A Shipping Height
97.6in
Swing Bearing – Height
22.2in
O/A Undercarriage Length
87.4in
Overall Shipping Length*
190.9in
Boom Swing – Right
34.3°
Boom Swing – Left
640mm
Track Belt/Shoe Width
11.8in
Track Width
70.1in
Minimum Ground Clearance Below Undercarriage
12.2in
Stick Length
61.4in
Note
*Overall Shipping Length depends on blade position during shipment.
Cab
309lb
Counterweight
221lb
Extra Counterweight
551lb
Long Stick
44lb
Steel Tracks
287lb
Angle Blade
353lb
Travel Speed – High
2.8mile/h
Travel Speed – Low
1.6mile/h
Maximum Traction Force – High Speed
3799lbf
Maximum Traction Force – Low Speed
6969lbf
Ground Pressure – Minimum Weight
4.3psi
Ground Pressure – Maximum Weight
5.2psi
Gradeability – Maximum
30 degrees
Operator Sound Pressure (ISO 6396:2008)
78dB(A)
Average Exterior Sound Pressure (ISO 6395:2008)
94dB(A)
Note
European Union Directive ‚ “2000/14/EC”
Type
Load Sensing Hydraulics with Variable Displacement Piston Pump
Pump Flow at 2,400 rpm
26gpm
Operating Pressure – Equipment
3553psi
Operating Pressure – Travel
3553psi
Operating Pressure – Swing
2625psi
Auxiliary Circuit – Primary – Flow
18gpm
Auxiliary Circuit – Primary – Pressure
3553psi
Auxiliary Circuit – Secondary – Flow
7gpm
Auxiliary Circuit – Secondary – Pressure
3553psi
Digging Force – Stick – Standard
4249lbf
Digging Force – Stick – Long
3799lbf
Digging Force – Bucket
7419lbf
Note
*Flow and pressure are not combinable. Under load, as flow rises pressure goes down.
Machine Swing Speed
9r/min
Boom Swing – Left
75°
Boom Swing – Right
50°
Dig Depth
110.6in
Vertical Wall
88.6in
Maximum Reach – Ground Level
202in
Maximum Reach
207.5in
Maximum Dig Height
193.7in
Maximum Dump Clearance
137.4in
Boom In Reach
69.3in
Tail Swing without Counterweight
35in
Tail Swing with Extra Counterweight
39.6in
Maximum Blade Depth
21.1in
Maximum Blade Height
15.2in
Boom Height – Shipping Position
59.8in
O/A Shipping Height
97.6in
Swing Bearing – Height
22.2in
O/A Undercarriage Length
87.4in
Overall Shipping Length*
189in
Boom Swing – Right
34.3°
Boom Swing – Left
25.2°
Track Belt/Shoe Width
11.8in
Minimum Ground Clearance Below Undercarriage
12.2in
Stick Length
49.6in
Note
*Overall Shipping Length depends on blade position during shipment.
Roll Over Protective Structure (ROPS)
ISO 12117-2:2008
Tip Over Protective Structure (TOPS)
ISO 12117:1997
Top Guard
ISO 10262:1998 (Level I)
Cooling System
1.8gal (US)
Engine Oil
1.6gal (US)
Fuel Tank
11.9gal (US)
Hydraulic Tank
5.3gal (US)
Hydraulic System
11.9gal (US)
Recyclability
95%
Width
70.1in
Height
13.8in
Air Conditioning
The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a or R1234yf (Europe) (Global Warming Potential = 1430). See label or instruction manual for gas refrigerant identification. The system contains 0.75 kg (1
  • Engine
    • Cat C1.7 NA Engine (U.S. EPA Tier 4 Final/EU Stage V)
    • Cat C1.7 NA Engine (U.S. EPA Tier 4 Final/EU Stage V)
    • Automatic Engine Idle
    • Automatic Engine Idle
    • Automatic Engine Shutdown
    • Automatic Engine Shutdown
    • Automatic Two Speed Travel
    • Automatic Two Speed Travel
    • Fuel Water Separator
    • Fuel Water Separator
    • Power on Demand (not available in all regions)
    • Power on Demand (not available in all regions)
    • Variable Displacement Piston Pump
    • Variable Displacement Piston Pump
    • Load Sensing/Flow Sharing Hydraulics
    • Load Sensing/Flow Sharing Hydraulics
  • Hydraulics
    • Smart Tech Electronic Pump
    • Accumulator
    • Smart Tech Electronic Pump
    • Automatic Swing Brake
    • Accumulator
    • Auxiliary Line Quick Disconnects
    • Automatic Swing Brake
    • One and Two Way Auxiliary Flow
    • Auxiliary Hydraulic Lines
    • Continuous Auxiliary Flow
    • One and Two Way Auxiliary Flow
    • Auxiliary Hydraulic Lines
    • Continuous Auxiliary Flow
    • Auxiliary Line Quick Disconnects
  • Operator Environment
    • Tilt-up Canopy or Tilt-Up Cab
    • Stick Steer Mode
    • Tilt-up Canopy or Tilt-Up Cab
    • Travel Cruise Control
    • Top Guard ISO 10262:1998 Level I
    • Control Pattern Changer (optional in some regions)
    • ROPS – ISO 12117-2:2008
    • Adjustable Wrist Rests
    • TOPS – ISO 12117:1997
    • Washable Floor Mat
    • Travel Pedals and Hand Levers
    • Stick Steer Mode
    • Machine Security
    • Travel Cruise Control
    • Machine Security – Standard Key with Pass Code
    • Control Pattern Changer (optional in some regions)
    • Fabric Suspension Seat (Cab only)
    • Adjustable Wrist Rests
    • Vinyl Suspension Seat (Canopy only)
    • Washable Floor Mat
    • Hydraulic Lockout – All Controls
    • Travel Pedals and Hand Levers
    • Retractable High Visibility Seat Belt (75 mm/3 in)
    • Machine Security
    • Coat Hook
    • Machine Security – Standard Key with Pass Code
    • Cup Holder
    • Fabric Suspension Seat (Cab only)
    • Storage Pocket
    • Vinyl Suspension Seat (Canopy only)
    • Skylight
    • Hydraulic Lockout – All Controls
    • Mounting Bosses for Front
    • Retractable High Visibility Seat Belt (75 mm/3 in)
    • Signaling/Warning Horn
    • Coat Hook
    • Interior Light (Cab only)
    • Cup Holder
    • Boom Light, Halogen (not available in all regions)
    • Storage Pocket
    • Utility Space for Mobile Phone
    • Skylight
    • 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)
    • 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
    • Tie Downs on Track Frame
    • 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
    • Front Shovel Capable – Pin-On
    • Thumb Ready (not available in all regions)
    • Certified Lifting Eye (optional in some regions)
    • 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)
  • Guarding
    • ROPS – ISO 12117-2:2008
    • TOPS – ISO 12117:1997
    • Top Guard ISO 10262:1998 (Level I)
  • Electrical
    • 12 Volt Battery
    • Software (machine and monitor)
    • Maintenance Free Battery
    • Lock Out/Tag Out Battery Disconnect
    • Signaling/Warning Horn
    • 12 Volt Power Socket
    • 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 Air Conditioning
    • Cab with Heater
    • Cab with Heater
    • Control Pattern Changer (optional in some regions)
    • Control Pattern Changer (optional in some regions)
    • No Travel Pedals and Hand Levers
    • No Travel Pedals and Hand Levers
    • Machine Security – Push to Start with Key Fob/Pass Code
    • Machine Security – Push to Start with Key Fob/Pass Code
    • Vinyl Non-Suspension Seat (Canopy only)
    • Vinyl Non-Suspension Seat (Canopy only)
    • Seat Belt Reminder System
    • LED Front Lights
    • LED Front Lights
    • LED Front and Rear Lights
    • LED Front and Rear Lights
    • LED Boom Light
    • LED Boom Light
    • Mirrors Left and Right
    • Mirrors Left and Right
    • Radio – Bluetooth®, Auxiliary, Microphone, USB (charging only) (Cab only)
    • Radio – Bluetooth®, Auxiliary, Microphone, USB (charging only) (Cab only)
    • Next Generation Advanced Monitor
      – Touch Screen
      – Site Reference System
      – High Definition Camera Capable (IP68 and IP69K)
      – Numeric Security Code
  • Undercarriage
    • Steel Track (300 mm/11.8 in wide)
    • Steel Track (300 mm/11.8 in wide)
    • Angle Blade
  • Boom, Stick And Linkages
    • Long Stick (1560 mm/61.4 in)
    • Long Stick (1560 mm/61.4 in)
    • Front Shovel Capable – Dual Lock Manual Coupler
    • Front Shovel Capable – Dual Lock Manual Coupler
    • Attachments including Couplers, Thumbs, Buckets, Augers and Hammers
    • Front Shovel Capable – Hydraulic Coupler
    • 2nd Auxiliary Hydraulic Lines
    • 2nd Auxiliary Hydraulic Lines
    • Boom Lowering Check Valve
    • Attachments including Couplers, Thumbs, Buckets, Augers and Hammers
    • Stick Lowering Check Valve
    • Boom Lowering Check Valve (Standard in Europe)
    • Hydraulic Quick Coupler Lines (not available in all regions)
    • Stick Lowering Check Valve (Standard in Europe)
    • Hydraulic Quick Coupler Lines (not available in all regions)
    • Front Shovel Capable – Hydraulic Coupler
  • Electrical
    • Battery Disconnect
    • Product Link PL243 (regulations apply)
    • Product Link PL243 (regulations apply)
    • Product Link PLE643 (regulations apply)
    • Product Link PLE643 (regulations apply)
    • Travel Alarm (standard in some regions)
    • Travel Alarm (standard in some regions)
  • Guarding
    • Polycarbonate Half Height Front Guard (Canopy only)
    • Polycarbonate Front Guard (ISO 10262:1998 Level I and EN356 P5A)
    • Guard, Canopy
    • Guard, Mesh
  • Other
    • Bio Oil Capable
    • Eco Drain
    • Water Jacket Heater
    • Bio Oil Capable
    • Light Counterweight (100 kg/221 lb)
    • Eco Drain
    • Extra Counterweight (250 kg/551 lb)
    • Water Jacket Heater

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