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303.5 CR Mini Hydraulic Excavator

Net Power

23.6 hp

Operating Weight

9,239 lb

Dig Depth

122.4 in

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SPECIFICATIONS

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.

FULL SPECIFICATIONS

Air Conditioning System

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 (1.65 lb), 0.90 kg (1.98 lb) or 1.0 kg (2.20 lb) of refrigerant which has a CO2 equivalent of 1.430 metric tonnes (1.576 tons) for R134a and 0.001 tonnes (0.001 tons) for R1234yf (Europe).

Blade

Height

13.8 in

Width

70.1 in

Certification - Cab and Canopy

Tip Over Protective Structure (TOPS)

ISO 12117:1997

Roll Over Protective Structure (ROPS)

ISO 12117-2:2008

Top Guard

ISO 10262:1998 (Level I)

Dimensions (Approximate) - Long Stick

Tail Swing with Extra Counterweight

39.6 in

Dimensions (Approximate) - Standard Stick

Tail Swing with Extra Counterweight

39.6 in

Dimensions - Long Stick

Dig Depth

122.4 in

Tail Swing with Counterweight

37.8 in

Track Belt/Shoe Width

11.8 in

Note

*Overall Shipping Length depends on blade position during shipment.

Maximum Reach

216.9 in

O/A Track Width

70.1 in

Maximum Dig Height

197.6 in

Maximum Blade Depth

21.1 in

Tail Swing without Counterweight

35 in

Boom Swing - Right

34.3 °

O/A Shipping Height

97.6 in

Stick Length

61.4 in

Swing Bearing - Height

22.2 in

Boom In Reach

73.2 in

Vertical Wall

94.1 in

Boom Swing - Left

640 mm

Boom Height - Shipping Position

68.9 in

Overall Shipping Length*

190.9 in

Maximum Blade Height

15.2 in

O/A Undercarriage Length

87.4 in

Maximum Reach - Ground Level

211.8 in

Maximum Dump Clearance

141.7 in

Ground Clearance

12.2 in

Tail Swing - with Extra Counterweight

39.6 in

Track Width

70.1 in

Minimum Ground Clearance Below Undercarriage

12.2 in

Dimensions - Standard Stick

Boom Swing - Right

34.3 °

Tail Swing with Counterweight

37.8 in

O/A Shipping Height

97.6 in

Tail Swing with Extra Counterweight

39.6 in

Stick Length

49.6 in

Vertical Wall

88.6 in

Tail Swing without Counterweight

35 in

Maximum Reach - Ground Level

202 in

Boom Swing - Left

25.2 °

Maximum Reach

207.5 in

Overall Shipping Length*

189 in

Track Belt/Shoe Width

11.8 in

Boom In Reach

69.3 in

Maximum Dump Clearance

137.4 in

Note

*Overall Shipping Length depends on blade position during shipment.

Swing Bearing - Height

22.2 in

Maximum Dig Height

193.7 in

Boom Height - Shipping Position

59.8 in

Dig Depth

110.6 in

O/A Undercarriage Length

87.4 in

Maximum Blade Depth

21.1 in

Maximum Blade Height

15.2 in

Ground Clearance

12.2 in

Minimum Ground Clearance Below Undercarriage

12.2 in

Engine

Net Power

23.6 hp

Engine Model

C1.7

Emissions

Meets U.S. EPA Tier 4 Final and EU Stage V emission standards.

Bore

3.3 in

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.

Note

Advertised power is tested per the specified standard in effect at the time of manufacture.

Net Power @ 2,200 rpm - U.S. EPA Tier 4 Final/EU Stage V - ISO 9249/EEC 80/1269

23.6 hp

Stroke

3.9 in

Gross Power - 2,400 rpm - SAE J1995

24.7 hp

Displacement

104 in³

Net Power - ISO 9249

24.7 hp

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.

Hydraulic System

Auxiliary Circuit - Secondary - Flow

7 gpm

Operating Pressure - Equipment

3,553 psi

Digging Force - Stick - Standard

4,249 lbf

Pump Flow at 2,400 rpm

26 gpm

Auxiliary Circuit - Primary - Flow

18 gpm

Digging Force - Stick - Long

3,799 lbf

Digging Force - Bucket

7,419 lbf

Operating Pressure - Travel

3,553 psi

Operating Pressure - Swing

2,625 psi

Auxiliary Circuit - Primary - Pressure

3,553 psi

Type

Load Sensing Hydraulics with Variable Displacement Piston Pump

Auxiliary Circuit - Secondary - Pressure

3,553 psi

Note

*Flow and pressure are not combinable. Under load, as flow rises pressure goes down.

Service Refill Capacities

Cooling System

1.8 gal (US)

Fuel Tank

11.9 gal (US)

Engine Oil

1.6 gal (US)

Hydraulic Tank

5.3 gal (US)

Hydraulic System

11.9 gal (US)

Sound

Average Exterior Sound Pressure (ISO 6395:2008)

94 dB(A)

Note

European Union Directive ‚ "2000/14/EC"

Operator Sound Pressure (ISO 6396:2008)

78 dB(A)

Sustainability

Recyclability

95%

Swing System

Machine Swing Speed

9 r/min

Boom Swing - Left

75 °

Boom Swing - Right

50 °

Travel System

Ground Pressure - Maximum Weight

5.2 psi

Ground Pressure - Minimum Weight

4.3 psi

Maximum Traction Force - High Speed

3,799 lbf

Travel Speed - Low

1.6 mile/h

Maximum Traction Force - Low Speed

6,969 lbf

Travel Speed - High

2.8 mile/h

Gradeability - Maximum

30 degrees

Weight Increase from Minimum Configuration

Cab

309 lb

Counterweight

221 lb

Long Stick

44 lb

Steel Tracks

287 lb

Extra Counterweight

551 lb

Angle Blade

353 lb

Weights

Operating Weight

9,239 lb

EU: CE Plate Weight with Canopy***

7,784 lb

Note (1)

*Minimum Weight is based on fixed rubber tracks, operator, full fuel tank, standard stick, blade, no bucket and extra counterweight.

Minimum Operating Weight with Canopy*

7,673 lb

Minimum Operating Weight with Cab*

7,982 lb

EU: CE Plate Weight with Cab***

8,004 lb

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**

9,239 lb

Note (2)

**Maximum Weight is based on steel tracks, operator, full fuel tank, long stick, blade, no bucket and extra counterweight.

Maximum Operating Weight with Canopy**

8,930 lb

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
- 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

OPTIONAL EQUIPMENT

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