303E CR Hydraulic Excavator

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303E CR Hydraulic Excavator

The 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.
  • Standard Equipment
  • Optional Equipment
  • Specs

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

Specs

Overview

Long Name:
303E CR Mini Hydraulic Excavator
Name:
303E CR
Brand:
Caterpillar
Status:
Current

Engine

Net Power:
23.5 HP / 17.5 kW
Engine Model:
Cat C1.3
Gross Power - ISO 14396:
24.8 HP / 18.5 kW
Note:
Cat C1.3 engine meets U.S. EPA Tier 4 Final/EU Stage V emission standards.

Weights

Operating Weight - With Cab:
7204 lb / 3267 kg
Operating Weight - With Canopy:
6721 lb / 3048 kg

Engine

Stroke:
3.5 in / 88 mm
Bore:
3.1 in / 78 mm
Displacement:
77 in³ / 1.3 l

Travel System

Maximum Traction Force - Low Speed:
6947 lbf / 30.9 kN
Travel Speed - High:
2.8 mile/h / 4.5 km/h
Travel Speed - Low:
1.5 mile/h / 2.4 km/h
Maximum Traction Force - High Speed:
3417 lbf / 15.2 kN

Hydraulic System

Operating Pressure - Swing:
2625 psi / 181 bar
Digging Force - Bucket:
6385 lbf / 28.4 kN
Pump Flow at 2,400 rpm:
23.1 gal/min / 88 l/min
Operating Pressure - Travel:
3553 psi / 245 bar
Digging Force - Stick - Standard:
3732 lbf / 16.6 kN
Operating Pressure - Equipment:
3553 psi / 245 bar

Swing System

Machine Swing Speed:
9 r/min / 9 r/min
Boom Swing - Left*:
80°
Boom Swing - Right:
50°
Note:
*Automatic swing brake, spring applied, hydraulic release.

Blade

Width:
60 in / 1550 mm
Height:
13 in / 335 mm
Dig Depth:
19 in / 472 mm
Lift Height:
16 in / 402 mm

Service Refill Capacities

Engine Oil:
1.5 gal (US) / 5.7 l
Fuel Tank:
11.9 gal (US) / 45 l
Hydraulic Tank:
12.4 gal (US) / 47 l
Cooling System:
1.2 gal (US) / 4.7 l
Hydraulic System:
17.2 gal (US) / 65 l

Engine

Gross Power:
24.8 HP / 18.5 kW

Undercarriage

Number of Carrier Rollers:
1
Track Roller Type:
Center Flange

Weights

Note:
Weight includes counterweight, rubber tracks, bucket, operator, full fuel and auxiliary lines.

Engine

Rated Net Power - 2,400 rpm - ISO 9249/EEC 80/1269:
23.5 HP / 17.5 kW

Undercarriage

Number of Track Rollers:
4

Hydraulic System

Type:
Load Sensing Hydraulics with Variable Displacement Piston Pump

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 (Approximate) - Long Stick

Dig Depth:
117 in / 2980 mm

Travel System

Ground Pressure - Cab Standard Stick:
4.7 psi / 32.6 kPa

Lift Capacities at Ground Level* - Lift Point Radius: 3000 mm (9'8")

Blade Down - Side:
1191 lb / 540 kg

Operating Specifications

Machine Overhang with Counterweight:
5 in / 115 mm

Lift Capacities at Ground Level* - Lift Point Radius: 4000 mm (13'1")

Blade Up - Side:
662 lb / 300 kg

Travel System

Ground Pressure - Cab Long Stick:
4.8 psi / 33 kPa

Dimensions (Approximate) - Long Stick

Maximum Reach:
198 in / 5040 mm
Track Belt/Shoe Width:
12 in / 300 mm
Overall Undercarriage Length:
82 in / 2080 mm

Dimensions (Approximate) - Standard Stick

Tail Swing:
31 in / 775 mm

Travel System

Ground Pressure with Canopy - Long Stick, Optional Counterweight:
4.9 psi / 33.5 kPa

Operating Specifications

Machine Overhang:
0 in / 0 mm

Dimensions (Approximate) - Long Stick

Overall Shipping Height:
98 in / 2500 mm

Dimensions (Approximate) - Standard Stick

Maximum Dump Clearance:
124 in / 3150 mm

Weights*

Operating Weight with Canopy - Long Stick, Optional Counterweight:
7400 lb / 3356 kg

Dimensions (Approximate) - Standard Stick

Track Belt/Shoe Width:
12 in / 300 mm
Overall Track Width:
60 in / 1550 mm

Dimensions (Approximate) - Long Stick

Maximum Reach - Ground Level:
193 in / 4910 mm

Lift Capacities at Ground Level* - Lift Point Radius: 4000 mm (13'1")

Blade Down - Front:
1632 lb / 740 kg

Dimensions (Approximate) - Standard Stick

Maximum Dig Height:
178 in / 4530 mm
Dig Depth:
108 in / 2750 mm
Overall Undercarriage Length:
82 in / 2080 mm

Dimensions (Approximate) - Long Stick

Tail Swing:
31 in / 775 mm

Travel System

Ground Pressure - Canopy Standard Stick:
4.4 psi / 30.4 kPa

Lift Capacities at Ground Level* - Lift Point Radius: 4000 mm (13'1")

Note:
*The above loads are in compliance with hydraulic excavator lift capacity rating standard ISO 10567:2007 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. Lifting capacities are for machine with cab, optional counterweight and standard stick.
Blade Down - Side:
750 lb / 340 kg

Hydraulic System

Auxiliary Circuit - Secondary (174 bar/2,523 psi):
7.1 gal/min / 27 l/min

Dimensions (Approximate) - Long Stick

Vertical Wall:
69 in / 1750 mm

Weights*

Operating Weight with Canopy - Long Stick:
6813 lb / 3090 kg

Dimensions (Approximate) - Long Stick

Boom In Reach:
79 in / 2000 mm

Dimensions (Approximate) - Standard Stick

Boom Swing Left:
24 in / 610 mm
Boom Swing Right:
32 in / 825 mm

Lift Capacities at Ground Level* - Lift Point Radius: 3000 mm (9'8")

Blade Down - Front:
2580 lb / 1170 kg

Operating Specifications

Stick Length - Long:
61 in / 1560 mm

Lift Capacities at Ground Level* - Lift Point Radius: 3000 mm (9'8")

Blade Up - Side:
1080 lb / 490 kg
Blade Up - Front:
1433 lb / 650 kg

Dimensions (Approximate) - Standard Stick

Tail Swing with Extra Counterweight:
35 in / 890 mm

Dimensions (Approximate) - Long Stick

Maximum Dig Height:
167 in / 4250 mm
Boom Swing Right:
32 in / 825 mm

Lift Capacities at Ground Level* - Lift Point Radius: 3000 mm (9'8")

Note:
*The above loads are in compliance with hydraulic excavator lift capacity rating standard ISO 10567:2007 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. Lifting capacities are for machine with cab, optional counterweight and standard stick.

Weights*

Operating Weight with Cab - Standard Stick:
7204 lb / 3267 kg

Hydraulic System

Digging Force - Stick - Long:
3327 lbf / 14.8 kN

Weights*

Operating Weight with Canopy - Standard Stick:
6721 lb / 3048 kg
Operating Weight with Cab - Standard Stick, Optional Counterweight:
7790 lb / 3533 kg

Dimensions (Approximate) - Standard Stick

Maximum Blade Height:
16 in / 402 mm

Dimensions (Approximate) - Long Stick

Maximum Blade Depth:
19 in / 470 mm

Dimensions (Approximate) - Standard Stick

Maximum Blade Depth:
19 in / 472 mm

Hydraulic System

Auxiliary Circuit - Primary (186 bar/2,697 psi):
15.9 gal/min / 60 l/min

Dimensions (Approximate) - Standard Stick

Boom Height in Shipping Position:
63 in / 1590 mm

Dimensions (Approximate) - Long Stick

Tail Swing with Extra Counterweight:
35 in / 890 mm

Weights*

Operating Weight with Cab - Long Stick:
7296 lb / 3309 kg

Dimensions (Approximate) - Long Stick

Maximum Blade Height:
16 in / 400 mm

Lift Capacities at Ground Level* - Lift Point Radius: 4000 mm (13'1")

Blade Up - Front:
904 lb / 410 kg

Dimensions (Approximate) - Long Stick

Overall Track Width:
61 in / 1550 mm

Travel System

Gradeability - Continuous Operation:
20°

Dimensions (Approximate) - Long Stick

Swing Bearing Height:
22 in / 565 mm
Boom Height in Shipping Position:
63 in / 1600 mm

Dimensions (Approximate) - Standard Stick

Swing Bearing Height:
22 in / 565 mm

Travel System

Ground Pressure - Canopy Long Stick:
4.5 psi / 30.8 kPa

Dimensions (Approximate) - Long Stick

Boom Swing Left:
24 in / 610 mm

Dimensions (Approximate) - Standard Stick

Maximum Reach:
195 in / 4950 mm

Weights*

Note:
*Weight includes counterweight, rubber tracks, bucket, operator, full fuel and auxiliary lines.
Operating Weight with Canopy - Standard Stick, Optional Counterweight:
7307 lb / 3314 kg

Travel System

Ground Pressure with Canopy - Standard Stick, Optional Counterweight:
4.8 psi / 33 kPa

Dimensions (Approximate) - Standard Stick

Overall Shipping Height:
98 in / 2500 mm
Vertical Wall:
77 in / 1960 mm
Overall Shipping Length:
176 in / 4470 mm

Dimensions (Approximate) - Long Stick

Maximum Dump Clearance:
117 in / 2970 mm
Overall Shipping Length:
198 in / 5030 mm

Dimensions (Approximate) - Standard Stick

Maximum Reach - Ground Level:
189 in / 4810 mm

Operating Specifications

Stick Length - Standard:
50 in / 1260 mm

Travel System

Ground Pressure with Cab - Standard Stick, Optional Counterweight:
5.1 psi / 35.2 kPa
Gradeability (< 10 minutes Operation):
30°
Ground Pressure with Cab - Long Stick, Optional Counterweight:
5.2 psi / 35.6 kPa

Weights*

Operating Weight with Cab - Long Stick, Optional Counterweight:
7883 lb / 3575 kg

Dimensions (Approximate) - Standard Stick

Boom In Reach:
83 in / 2110 mm