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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Engine
- Net Power
- 23.6HP
- Engine Model
- C1.7
- 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.
- Stroke
- 3.9in
- Bore
- 3.3in
- Net Power @ 2,200 rpm - U.S. EPA Tier 4 Final/EU Stage V - ISO 9249/EEC 80/1269
- 23.6HP
- Displacement
- 104in³
- Note
- Net power is tested per ISO 9249 and 80/1269/EEC.
- Gross Power - 2,400 rpm - SAE J1995
- 24.7HP
- Emissions
- Meets U.S. EPA Tier 4 Final and EU Stage V emission standards.
Weights
- Operating Weight
- 9239lb
- Minimum Operating Weight with Canopy*
- 7673lb
- EU: CE Plate Weight with Cab***
- 8004lb
- 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 Cab**
- 9239lb
- Maximum Operating Weight with Canopy**
- 8930lb
- EU: CE Plate Weight with Canopy***
- 7784lb
- Minimum Operating Weight with Cab*
- 7982lb
- Note (1)
- * Minimum Weight is based on fixed rubber tracks, operator, full fuel tank, standard stick, blade, bucket and no extra counterweight.
- Note (2)
- **Maximum Weight is based on steel tracks, operator, full fuel tank, long stick, blade, bucket and extra counterweight.
Dimensions - Long Stick
- Dig Depth
- 122.4in
- O/A Undercarriage Length
- 87.4in
- Boom Swing - Right
- 34.3°
- Track Belt/Shoe Width
- 11.8in
- Maximum Reach
- 216.9in
- O/A Track Width
- 70.1in
- Maximum Blade Depth
- 21.1in
- Tail Swing without Counterweight
- 35in
- Stick Length
- 61.4in
- Swing Bearing - Height
- 22.2in
- Boom Swing - Left
- 640mm
- Overall Shipping Length*
- 190.9in
- Maximum Reach - Ground Level
- 211.8in
- Maximum Dump Clearance
- 141.7in
- Tail Swing with Counterweight
- 37.8in
- O/A Shipping Height
- 97.6in
- Note
- *Overall Shipping Length depends on blade position during shipment.
- Boom In Reach
- 73.2in
- Maximum Dig Height
- 197.6in
- Vertical Wall
- 94.1in
- Boom Height - Shipping Position
- 68.9in
- Maximum Blade Height
- 15.2in
- Ground Clearance
- 12.2in
Blade
- Height
- 13.8in
- Width
- 70.1in
Travel System
- Ground Pressure - Maximum Weight
- 5.2psi
- Ground Pressure - Minimum Weight
- 4.3psi
- Maximum Traction Force - High Speed
- 3799lbf
- Maximum Traction Force - Low Speed
- 6969lbf
- Travel Speed - High
- 2.8mile/h
- Gradeability - Maximum
- 30 degrees
- Travel Speed - Low
- 1.6mile/h
Dimensions (Approximate) - Long Stick
- Tail Swing with Extra Counterweight
- 39.6in
Certification - Cab and Canopy
- Top Guard
- ISO 10262:1998 (Level I)
- Roll Over Protective Structure (ROPS)
- ISO 12117-2:2008
- Tip Over Protective Structure (TOPS)
- ISO 12117:1997
Dimensions - Standard Stick
- Boom Swing - Right
- 34.3°
- Tail Swing with Counterweight
- 37.8in
- Stick Length
- 49.6in
- Maximum Reach - Ground Level
- 202in
- Boom Swing - Left
- 25.2°
- Maximum Reach
- 207.5in
- Track Belt/Shoe Width
- 11.8in
- Maximum Dump Clearance
- 137.4in
- Swing Bearing - Height
- 22.2in
- Boom Height - Shipping Position
- 59.8in
- O/A Shipping Height
- 97.6in
- Overall Shipping Length*
- 189in
- Boom In Reach
- 69.3in
- Note
- *Overall Shipping Length depends on blade position during shipment.
- Tail Swing with Extra Counterweight
- 39.6in
- Maximum Dig Height
- 193.7in
- Vertical Wall
- 88.6in
- Dig Depth
- 110.6in
- O/A Undercarriage Length
- 87.4in
- Tail Swing without Counterweight
- 35in
- Maximum Blade Depth
- 21.1in
- Maximum Blade Height
- 15.2in
- Ground Clearance
- 12.2in
Weight Increase from Minimum Configuration
- Cab
- 309lb
- Counterweight
- 221lb
- Steel Tracks
- 287lb
- Long Stick
- 44lb
- Angle Blade
- 353lb
- Extra Counterweight
- 551lb
Service Refill Capacities
- Fuel Tank
- 11.9gal (US)
- Hydraulic Tank
- 5.3gal (US)
- Cooling System
- 1.8gal (US)
- Engine Oil
- 1.6gal (US)
- Hydraulic System
- 11.9gal (US)
Hydraulic System
- Pump Flow at 2,400 rpm
- 26gal/min
- Auxiliary Circuit - Primary - Flow
- 18gal/min
- Operating Pressure - Swing
- 2625psi
- Type
- Load Sensing Hydraulics with Variable Displacement Piston Pump
- Auxiliary Circuit - Secondary - Pressure
- 3553psi
- Digging Force - Stick - Long
- 3799lbf
- Auxiliary Circuit - Secondary - Flow
- 7gal/min
- Digging Force - Bucket
- 7419lbf
- Operating Pressure - Travel
- 3553psi
- Operating Pressure - Equipment
- 3553psi
- Auxiliary Circuit - Primary - Pressure
- 3553psi
- Digging Force - Stick - Standard
- 4249lbf
- Note
- *Flow and pressure are not combinable. Under load, as flow rises pressure goes down.
Sound
- Note
- European Union Directive ‚ "2000/14/EC"
- Operator Sound Pressure (ISO 6396:2008)
- 78dB(A)
- Average Exterior Sound Pressure (ISO 6395:2008)
- 94dB(A)
Sustainability
- Recyclability
- 95%
Swing System
- Machine Swing Speed
- 9r/min
- Boom Swing - Right
- 50°
- Boom Swing - Left
- 75°
Dimensions (Approximate) - Standard Stick
- Tail Swing with Extra Counterweight
- 39.6in
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
490 mm (19 in) Ripper
- Shank Length
- 19.3 in
- Weight
- 99.2 lb
- Overall Length
- 25.9 in
S-40 Pin Grabber S Type Coupler With Secure Lock For 3 Ton Mini Excavators
- Weight
- 94.8 lb
- Lifting Hook Capacity
- 4409.2 lb
- Width
- 10 in
S-40 Pin Grabber S Type Coupler For 3 Ton Mini Excavators
- Weight
- 92.6 lb
- Lifting Hook Capacity
- 4409.2 lb
- Width
- 10 in
Manual Dual Lock™ Pin Grabber Coupler For 3-4 Ton Mini Excavators
- Weight
- 81.6 lb
- Width
- 10.6 in
- Length
- 16.9 in
Hydraulic Dual Lock™ Pin Grabber Coupler For 3-4 Ton Mini Excavators
- Weight
- 90.4 lb
- Width
- 9.9 in
- Length
- 16.7 in
559 mm (22 in) 1-8 Ton Mini Excavator Pin Lock Compaction Wheel
- Compaction Width
- 21.8 in
- Number of Wheels
- 4
- Machine Class
- 1-8 Ton Mini Excavators
559 mm (22 in) 3-4 Ton Mini Excavator Pin On Compaction Wheel
- Compaction Width
- 21.8 in
- Number of Wheels
- 4
- Machine Class
- 3-4 Ton Mini Excavators
406 mm (16 in) 3-4 Ton Mini Excavator Pin On Compaction Wheel
- Compaction Width
- 15.7 in
- Number of Wheels
- 3
- Machine Class
- 3-4 Ton Mini Excavators
406 mm (16 in) 1-8 Ton Mini Excavator Pin Lock Compaction Wheel
- Compaction Width
- 15.7 in
- Number of Wheels
- 3
- Machine Class
- 1-8 Ton Mini Excavators
305 mm (12 in) 3-4 Ton Mini Excavator Pin On Compaction Wheel
- Compaction Width
- 10.7 in
- Number of Wheels
- 2
- Machine Class
- 3-4 Ton Mini Excavators
305 mm (12 in) 1-8 Ton Mini Excavator Pin Lock Compaction Wheel
- Compaction Width
- 10.7 in
- Number of Wheels
- 2
- Machine Class
- 1-8 Ton Mini Excavators
320 mm (12 in) Nordic Trenching Bucket
- Width
- 12.6 in
- Capacity
- 2.8 ft³
- Weight
- 169.8 lb
1100 mm (43 in) Nordic Grading Bucket
- Width
- 43.3 in
- Capacity
- 5.3 ft³
- Weight
- 253.5 lb
914 mm (36 in) Heavy Duty Bucket
- Width
- 36 in
- Capacity
- 7.1 ft³
- Weight
- 293.2 lb
619 mm (24 in) Heavy Duty Bucket
- Width
- 24.4 in
- Capacity
- 4.2 ft³
- Weight
- 216.1 lb
508 mm (20 in) Heavy Duty Bucket
- Width
- 20 in
- Capacity
- 3.3 ft³
- Weight
- 191.8 lb
406 mm (16 in) Heavy Duty Bucket
- Width
- 16 in
- Capacity
- 2.5 ft³
- Weight
- 163.1 lb
305 mm (12 in) Heavy Duty Bucket
- Width
- 12 in
- Capacity
- 1.7 ft³
- Weight
- 143.3 lb
1400 mm (55 in) Ditch Cleaning Bucket
- Width
- 55.1 in
- Capacity
- 7 ft³
- Weight
- 259.2 lb
1200 mm (47 in) Ditch Cleaning Bucket
- Width
- 47.2 in
- Capacity
- 5.9 ft³
- Weight
- 235.7 lb
1000 mm (39 in) Ditch Cleaning Bucket
- Width
- 39.4 in
- Capacity
- 4.8 ft³
- Weight
- 240.1 lb
A41 Auger
- Drive Shaft Torque at Maximum Pressure
- 3038.8 lb/ft
- Drive Method
- Gerotor Motor - Single Planetary Reduction
- Mounting Bracket Design
- 3 Ton Mini Excavator Pin On
A23
- Drive Shaft Torque at Maximum Pressure
- 1699.3 lb/ft
- Drive Method
- Gerotor Motor - Direct Drive
- Mounting Bracket Design
- 3 Ton Mini Excavator Pin On
326 mm (13 in) 8 Teeth/2 Tine Utility Thumb for 3 Ton Mini Excavators
- Length
- 30.4 in
- Stored Height
- 11.5 in
- Overall Width
- 12.8 in