The Performance Upgraded Cat® 303.5 CR Mini Excavator
The upgraded 303.5 CR delivers power and performance in a wide range of applications. Faster transient speeds, coupled with exclusive features like stick steer joystick travel get you moving quickly and comfortably so you can focus on the task at hand. 303.5 CR Mini Hydraulic Excavator
Engine
Net Power: 23.6 hp
Engine Model: C1.7
Net Power @ 2,200 rpm – U.S. EPA Tier 4 Final/EU Stage V – ISO 9249/EEC 80/1269: 23.6 hp
Net Power – ISO 9249: 24.7 hp
Bore: 3.3 in
Stroke: 3.9 in
Displacement: 104 in³
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.
Weights
Operating Weight: 9239 lb
Minimum Operating Weight with Canopy*: 7673 lb
Maximum Operating Weight with Canopy**: 8930 lb
Minimum Operating Weight with Cab*: 7982 lb
Maximum Operating Weight with Cab**: 9239 lb
EU: CE Plate Weight with Canopy*: 7784 lb
EU: CE Plate Weight with Cab*: 8004 lb
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.
The Travel System
Travel Speed – High: 2.8 mile/h
Travel Speed – Low: 1.6 mile/h
Maximum Traction Force – High Speed: 3799 lbf
Maximum Traction Force – Low Speed: 6969 lbf
Ground Pressure – Minimum Weight: 4.3 psi
Our Ground Pressure – Maximum Weight: 5.2 psi
Gradeability – Maximum: 30 degrees
Hydraulic System
Load Sensing Hydraulics with Variable Displacement Piston Pump
Pump Flow at 2,400 rpm: 26 gpm
Operating Pressure – Equipment: 3553 psi
These Operating Pressure – Travel: 3553 psi
Operating Pressure – Swing: 2625 psi
Auxiliary Circuit – Primary – Flow: 18 gpm
The Auxiliary Circuit – Primary – Pressure: 3553 psi
Auxiliary Circuit – Secondary – Flow: 7 gpm
Auxiliary Circuit – Secondary – Pressure: 3553 psi
Digging Force – Stick – Standard: 4249 lbf
Our Digging Force – Stick – Long: 3799 lbf
Digging Force – Bucket: 7419 lbf
Note
*Flow and pressure are not combinable. Under load, as flow rises pressure goes down.
Dimensions – Standard Stick
Dig Depth: 110.6 in
Vertical Wall: 88.6 in
Maximum Reach – Ground Level: 202 in
The Maximum Reach: 207.5 in
Maximum Dig Height: 193.7 in
Our Maximum Dump Clearance: 137.4 in
Boom In Reach: 69.3 in
Tail Swing without Counterweight: 35 in
Tail Swing with Extra Counterweight: 39.6 in
Maximum Blade Depth: 21.1 in
Maximum Blade Height: 15.2 in
Boom Height – Shipping Position: 59.8 in
O/A Shipping Height: 97.6 in
Swing Bearing – Height: 22.2 in
O/A Undercarriage Length: 87.4 in
Overall Shipping Length*: 189 in
Boom Swing – Right: 34.3 °
Boom Swing – Left: 25.2 °
Track Belt/Shoe Width: 11.8 in
Minimum Ground Clearance Below Undercarriage: 12.2 in
Stick Length: 49.6 in
Note
*Overall Shipping Length depends on blade position during shipment. 303.5 CR Mini Hydraulic Excavator
Standard Equipment
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
These Automatic Engine Idle
This Automatic Engine Shutdown
Automatic Engine Shutdown
Our 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 303.5 CR Mini Hydraulic Excavator
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