This model is no longer in production and is unavailable for purchase. It has been replaced by an upgraded version, which you can view here.
View new modelThe Cat® 303E CR Mini Hydraulic Excavator delivers high performance, durability and versatility in a compact design to help you work in a variety of applications.
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Engine
- Net Power
- 23.5 hp
- Engine Model
- Cat C1.3
- Gross Power
- 24.8 hp
- Gross Power - ISO 14396
- 24.8 hp
- Note
- Cat C1.3 engine meets U.S. EPA Tier 4 Final/EU Stage V emission standards.
- Stroke
- 3.5 in
- Bore
- 3.1 in
- Displacement
- 77 in³
- Rated Net Power - 2,400 rpm - ISO 9249/EEC 80/1269
- 23.5 hp
Weights
- Operating Weight - With Cab
- 7,204 lb
- Operating Weight - With Canopy
- 6,721 lb
- Note
- Weight includes counterweight, rubber tracks, bucket, operator, full fuel and auxiliary lines.
Dimensions (Approximate) - Long Stick
- Dig Depth
- 117 in
- Maximum Reach
- 198 in
- Track Belt/Shoe Width
- 12 in
- Overall Undercarriage Length
- 82 in
- Overall Shipping Height
- 98 in
- Maximum Reach - Ground Level
- 193 in
- Tail Swing
- 31 in
- Vertical Wall
- 69 in
- Boom In Reach
- 79 in
- Maximum Dig Height
- 167 in
- Boom Swing Right
- 32 in
- Maximum Blade Depth
- 19 in
- Tail Swing with Extra Counterweight
- 35 in
- Maximum Blade Height
- 16 in
- Overall Track Width
- 61 in
- Swing Bearing Height
- 22 in
- Boom Height in Shipping Position
- 63 in
- Boom Swing Left
- 24 in
- Maximum Dump Clearance
- 117 in
- Overall Shipping Length
- 198 in
Swing System
- Machine Swing Speed
- 9 r/min
- Boom Swing - Left*
- 80°
- Boom Swing - Right
- 50°
- Note
- *Automatic swing brake, spring applied, hydraulic release.
Blade
- Width
- 60 in
- Height
- 13 in
- Dig Depth
- 19 in
- Lift Height
- 16 in
Travel System
- Maximum Traction Force - Low Speed
- 6,947 lbf
- Travel Speed - High
- 2.8 mile/h
- Travel Speed - Low
- 1.5 mile/h
- Maximum Traction Force - High Speed
- 3,417 lbf
- Ground Pressure - Cab Standard Stick
- 4.7 psi
- Ground Pressure - Cab Long Stick
- 4.8 psi
- Ground Pressure with Canopy - Long Stick, Optional Counterweight
- 4.9 psi
- Ground Pressure - Canopy Standard Stick
- 4.4 psi
- Gradeability - Continuous Operation
- 20°
- Ground Pressure - Canopy Long Stick
- 4.5 psi
- Ground Pressure with Canopy - Standard Stick, Optional Counterweight
- 4.8 psi
- Ground Pressure with Cab - Standard Stick, Optional Counterweight
- 5.1 psi
- Gradeability (< 10 minutes Operation)
- 30°
- Ground Pressure with Cab - Long Stick, Optional Counterweight
- 5.2 psi
Hydraulic System
- Operating Pressure - Swing
- 2,625 psi
- Digging Force - Bucket
- 6,385 lbf
- Pump Flow at 2,400 rpm
- 23.1 gal/min
- Operating Pressure - Travel
- 3,553 psi
- Digging Force - Stick - Standard
- 3,732 lbf
- Operating Pressure - Equipment
- 3,553 psi
- Type
- Load Sensing Hydraulics with Variable Displacement Piston Pump
- Auxiliary Circuit - Secondary (174 bar/2,523 psi)
- 7.1 gal/min
- Digging Force - Stick - Long
- 3,327 lbf
- Auxiliary Circuit - Primary (186 bar/2,697 psi)
- 15.9 gal/min
Service Refill Capacities
- Engine Oil
- 1.5 gal (US)
- Fuel Tank
- 11.9 gal (US)
- Hydraulic Tank
- 12.4 gal (US)
- Cooling System
- 1.2 gal (US)
- Hydraulic System
- 17.2 gal (US)
Undercarriage
- Number of Carrier Rollers
- 1
- Track Roller Type
- Center Flange
- Number of Track Rollers
- 4
Certification - Cab and Canopy
- Top Guard
- ISO 10,262:1,998 (Level I)
- Roll Over Protective Structure (ROPS)
- ISO 12,117-2:2,008
- Tip Over Protective Structure (TOPS)
- ISO 12,117:1,997
Lift Capacities at Ground Level* - Lift Point Radius: 3000 mm (9'8")
- Blade Down - Side
- 1,191 lb
- Blade Down - Front
- 2,580 lb
- Blade Up - Side
- 1,080 lb
- Blade Up - Front
- 1,433 lb
- Note
- *The above loads are in compliance with hydraulic excavator lift capacity rating standard ISO 10,567:2,007 and they do not exceed 87% of hydraulic lifting capacity or 75% of tipping capacity. The excavator bucket weight is not included on this chart. Liftin
Operating Specifications
- Machine Overhang with Counterweight
- 5 in
- Machine Overhang
- 0 in
- Stick Length - Long
- 61 in
- Stick Length - Standard
- 50 in
Lift Capacities at Ground Level* - Lift Point Radius: 4000 mm (13'1")
- Blade Up - Side
- 662 lb
- Blade Down - Front
- 1,632 lb
- Note
- *The above loads are in compliance with hydraulic excavator lift capacity rating standard ISO 10,567:2,007 and they do not exceed 87% of hydraulic lifting capacity or 75% of tipping capacity. The excavator bucket weight is not included on this chart. Liftin
- Blade Down - Side
- 750 lb
- Blade Up - Front
- 904 lb
Dimensions (Approximate) - Standard Stick
- Tail Swing
- 31 in
- Maximum Dump Clearance
- 124 in
- Track Belt/Shoe Width
- 12 in
- Overall Track Width
- 60 in
- Maximum Dig Height
- 178 in
- Dig Depth
- 108 in
- Overall Undercarriage Length
- 82 in
- Boom Swing Left
- 24 in
- Boom Swing Right
- 32 in
- Tail Swing with Extra Counterweight
- 35 in
- Maximum Blade Height
- 16 in
- Maximum Blade Depth
- 19 in
- Boom Height in Shipping Position
- 63 in
- Swing Bearing Height
- 22 in
- Maximum Reach
- 195 in
- Overall Shipping Height
- 98 in
- Vertical Wall
- 77 in
- Overall Shipping Length
- 176 in
- Maximum Reach - Ground Level
- 189 in
- Boom In Reach
- 83 in
Weights*
- Operating Weight with Canopy - Long Stick, Optional Counterweight
- 7,400 lb
- Operating Weight with Canopy - Long Stick
- 6,813 lb
- Operating Weight with Cab - Standard Stick
- 7,204 lb
- Operating Weight with Canopy - Standard Stick
- 6,721 lb
- Operating Weight with Cab - Standard Stick, Optional Counterweight
- 7,790 lb
- Operating Weight with Cab - Long Stick
- 7,296 lb
- Note
- *Weight includes counterweight, rubber tracks, bucket, operator, full fuel and auxiliary lines.
- Operating Weight with Canopy - Standard Stick, Optional Counterweight
- 7,307 lb
- Operating Weight with Cab - Long Stick, Optional Counterweight
- 7,883 lb
Standard Equipment:
-
- Standard Equipment
-
- 1-way and 2-way (combined function) auxiliary hydraulic lines
- Lockable storage box
- Cab mounted work light
- Travel alarm (optional in Europe)
- Dozer blade with float function
- Suspension seat, vinyl covered
- Automatic two speed travel
- Horn
- Lifting eye on bucket linkage (standard equipment for all regions except Europe)
- Alternator
- Product Link™
- Cup holder
- Control pattern changer
- Coat hook
- Standard stick
- Low maintenance linkage pin joints
- Gauges or indicators for fuel level engine coolant temperature, hour meter, engine oil pressure, air cleaner, alternator and glow plugs, service interval
- Rubber track
- Canopy with Top Guard ISO 10262:1998 (Level 1), ROPS ISO 12117-2:2008 and TOPS ISO 12117:1997
- Hydraulic oil cooler
- Auxiliary line quick disconnects
- Retractable seatbelt
- Boom cylinder guard
- Maintenance free battery
- Adjustable armrests
- “Thumb ready” sticks
- Automatic swing park brake
- Foot travel pedals
Optional Equipment:
-
- Optional Equipment
-
- Mirrors for cab and canopy
- Steel track
- Cab, Top Guard ISO 10262:1998 (Level 1), ROPS ISO 12117-2:2008 and TOPS ISO 12117:1997
- Mechanical quick coupler
- Boom mounted light
- High back suspension seat, fabric covered
- Beacon socket for canopy machines
Specifications
Engine
- Net Power
- 23.5 hp
- Engine Model
- Cat C1.3
- Gross Power
- 24.8 hp
- Gross Power - ISO 14396
- 24.8 hp
- Note
- Cat C1.3 engine meets U.S. EPA Tier 4 Final/EU Stage V emission standards.
- Stroke
- 3.5 in
- Bore
- 3.1 in
- Displacement
- 77 in³
- Rated Net Power - 2,400 rpm - ISO 9249/EEC 80/1269
- 23.5 hp
Weights
- Operating Weight - With Cab
- 7,204 lb
- Operating Weight - With Canopy
- 6,721 lb
- Note
- Weight includes counterweight, rubber tracks, bucket, operator, full fuel and auxiliary lines.
Dimensions (Approximate) - Long Stick
- Dig Depth
- 117 in
- Maximum Reach
- 198 in
- Track Belt/Shoe Width
- 12 in
- Overall Undercarriage Length
- 82 in
- Overall Shipping Height
- 98 in
- Maximum Reach - Ground Level
- 193 in
- Tail Swing
- 31 in
- Vertical Wall
- 69 in
- Boom In Reach
- 79 in
- Maximum Dig Height
- 167 in
- Boom Swing Right
- 32 in
- Maximum Blade Depth
- 19 in
- Tail Swing with Extra Counterweight
- 35 in
- Maximum Blade Height
- 16 in
- Overall Track Width
- 61 in
- Swing Bearing Height
- 22 in
- Boom Height in Shipping Position
- 63 in
- Boom Swing Left
- 24 in
- Maximum Dump Clearance
- 117 in
- Overall Shipping Length
- 198 in
Swing System
- Machine Swing Speed
- 9 r/min
- Boom Swing - Left*
- 80°
- Boom Swing - Right
- 50°
- Note
- *Automatic swing brake, spring applied, hydraulic release.
Blade
- Width
- 60 in
- Height
- 13 in
- Dig Depth
- 19 in
- Lift Height
- 16 in
Travel System
- Maximum Traction Force - Low Speed
- 6,947 lbf
- Travel Speed - High
- 2.8 mile/h
- Travel Speed - Low
- 1.5 mile/h
- Maximum Traction Force - High Speed
- 3,417 lbf
- Ground Pressure - Cab Standard Stick
- 4.7 psi
- Ground Pressure - Cab Long Stick
- 4.8 psi
- Ground Pressure with Canopy - Long Stick, Optional Counterweight
- 4.9 psi
- Ground Pressure - Canopy Standard Stick
- 4.4 psi
- Gradeability - Continuous Operation
- 20°
- Ground Pressure - Canopy Long Stick
- 4.5 psi
- Ground Pressure with Canopy - Standard Stick, Optional Counterweight
- 4.8 psi
- Ground Pressure with Cab - Standard Stick, Optional Counterweight
- 5.1 psi
- Gradeability (< 10 minutes Operation)
- 30°
- Ground Pressure with Cab - Long Stick, Optional Counterweight
- 5.2 psi
Hydraulic System
- Operating Pressure - Swing
- 2,625 psi
- Digging Force - Bucket
- 6,385 lbf
- Pump Flow at 2,400 rpm
- 23.1 gal/min
- Operating Pressure - Travel
- 3,553 psi
- Digging Force - Stick - Standard
- 3,732 lbf
- Operating Pressure - Equipment
- 3,553 psi
- Type
- Load Sensing Hydraulics with Variable Displacement Piston Pump
- Auxiliary Circuit - Secondary (174 bar/2,523 psi)
- 7.1 gal/min
- Digging Force - Stick - Long
- 3,327 lbf
- Auxiliary Circuit - Primary (186 bar/2,697 psi)
- 15.9 gal/min
Service Refill Capacities
- Engine Oil
- 1.5 gal (US)
- Fuel Tank
- 11.9 gal (US)
- Hydraulic Tank
- 12.4 gal (US)
- Cooling System
- 1.2 gal (US)
- Hydraulic System
- 17.2 gal (US)
Undercarriage
- Number of Carrier Rollers
- 1
- Track Roller Type
- Center Flange
- Number of Track Rollers
- 4
Certification - Cab and Canopy
- Top Guard
- ISO 10,262:1,998 (Level I)
- Roll Over Protective Structure (ROPS)
- ISO 12,117-2:2,008
- Tip Over Protective Structure (TOPS)
- ISO 12,117:1,997
Lift Capacities at Ground Level* - Lift Point Radius: 3000 mm (9'8")
- Blade Down - Side
- 1,191 lb
- Blade Down - Front
- 2,580 lb
- Blade Up - Side
- 1,080 lb
- Blade Up - Front
- 1,433 lb
- Note
- *The above loads are in compliance with hydraulic excavator lift capacity rating standard ISO 10,567:2,007 and they do not exceed 87% of hydraulic lifting capacity or 75% of tipping capacity. The excavator bucket weight is not included on this chart. Liftin
Operating Specifications
- Machine Overhang with Counterweight
- 5 in
- Machine Overhang
- 0 in
- Stick Length - Long
- 61 in
- Stick Length - Standard
- 50 in
Lift Capacities at Ground Level* - Lift Point Radius: 4000 mm (13'1")
- Blade Up - Side
- 662 lb
- Blade Down - Front
- 1,632 lb
- Note
- *The above loads are in compliance with hydraulic excavator lift capacity rating standard ISO 10,567:2,007 and they do not exceed 87% of hydraulic lifting capacity or 75% of tipping capacity. The excavator bucket weight is not included on this chart. Liftin
- Blade Down - Side
- 750 lb
- Blade Up - Front
- 904 lb
Dimensions (Approximate) - Standard Stick
- Tail Swing
- 31 in
- Maximum Dump Clearance
- 124 in
- Track Belt/Shoe Width
- 12 in
- Overall Track Width
- 60 in
- Maximum Dig Height
- 178 in
- Dig Depth
- 108 in
- Overall Undercarriage Length
- 82 in
- Boom Swing Left
- 24 in
- Boom Swing Right
- 32 in
- Tail Swing with Extra Counterweight
- 35 in
- Maximum Blade Height
- 16 in
- Maximum Blade Depth
- 19 in
- Boom Height in Shipping Position
- 63 in
- Swing Bearing Height
- 22 in
- Maximum Reach
- 195 in
- Overall Shipping Height
- 98 in
- Vertical Wall
- 77 in
- Overall Shipping Length
- 176 in
- Maximum Reach - Ground Level
- 189 in
- Boom In Reach
- 83 in
Weights*
- Operating Weight with Canopy - Long Stick, Optional Counterweight
- 7,400 lb
- Operating Weight with Canopy - Long Stick
- 6,813 lb
- Operating Weight with Cab - Standard Stick
- 7,204 lb
- Operating Weight with Canopy - Standard Stick
- 6,721 lb
- Operating Weight with Cab - Standard Stick, Optional Counterweight
- 7,790 lb
- Operating Weight with Cab - Long Stick
- 7,296 lb
- Note
- *Weight includes counterweight, rubber tracks, bucket, operator, full fuel and auxiliary lines.
- Operating Weight with Canopy - Standard Stick, Optional Counterweight
- 7,307 lb
- Operating Weight with Cab - Long Stick, Optional Counterweight
- 7,883 lb
Standard/Optional Features
Standard Equipment:
-
- Standard Equipment
-
- 1-way and 2-way (combined function) auxiliary hydraulic lines
- Lockable storage box
- Cab mounted work light
- Travel alarm (optional in Europe)
- Dozer blade with float function
- Suspension seat, vinyl covered
- Automatic two speed travel
- Horn
- Lifting eye on bucket linkage (standard equipment for all regions except Europe)
- Alternator
- Product Link™
- Cup holder
- Control pattern changer
- Coat hook
- Standard stick
- Low maintenance linkage pin joints
- Gauges or indicators for fuel level engine coolant temperature, hour meter, engine oil pressure, air cleaner, alternator and glow plugs, service interval
- Rubber track
- Canopy with Top Guard ISO 10262:1998 (Level 1), ROPS ISO 12117-2:2008 and TOPS ISO 12117:1997
- Hydraulic oil cooler
- Auxiliary line quick disconnects
- Retractable seatbelt
- Boom cylinder guard
- Maintenance free battery
- Adjustable armrests
- “Thumb ready” sticks
- Automatic swing park brake
- Foot travel pedals
Optional Equipment:
-
- Optional Equipment
-
- Mirrors for cab and canopy
- Steel track
- Cab, Top Guard ISO 10262:1998 (Level 1), ROPS ISO 12117-2:2008 and TOPS ISO 12117:1997
- Mechanical quick coupler
- Boom mounted light
- High back suspension seat, fabric covered
- Beacon socket for canopy machines