303.5 CR

303.5 CR
Caterpillar
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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.
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.

Brochures and Spec Sheets

Gallery

303.5 CR 303.5 CR 303.5 CR 303.5 CR 303.5 CR 303.5 CR 303.5 CR 303.5 CR 303.5 CR 303.5 CR

Specifications

Specification Value Unit
Net Power 23.6 hp
Engine Model
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
Note
Note (1)
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)
Note (2)
Note (3)
Cab 309 lb
Counterweight 221 lb
Extra Counterweight 551 lb
Long Stick 44 lb
Steel Tracks 287 lb
Angle Blade 353 lb
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
Ground Pressure - Maximum Weight 5.2 psi
Gradeability - Maximum
Cooling System 1.8 gal (US)
Engine Oil 1.6 gal (US)
Fuel Tank 11.9 gal (US)
Hydraulic Tank 5.3 gal (US)
Hydraulic System 11.9 gal (US)
Type
Pump Flow at 2,400 rpm 26 gpm
Operating Pressure - Equipment 3553 psi
Operating Pressure - Travel 3553 psi
Operating Pressure - Swing 2625 psi
Auxiliary Circuit - Primary - Flow 18 gpm
Auxiliary Circuit - Primary - Pressure 3553 psi
Auxiliary Circuit - Secondary - Flow 7 gpm
Auxiliary Circuit - Secondary - Pressure 3553 psi
Digging Force - Stick - Standard 4249 lbf
Digging Force - Stick - Long 3799 lbf
Digging Force - Bucket 7419 lbf
Note
Machine Swing Speed 9 r/min
Boom Swing - Left 75 °
Boom Swing - Right 50 °
Width 70.1 in
Height 13.8 in
Roll Over Protective Structure (ROPS)
Tip Over Protective Structure (TOPS)
Top Guard
Dig Depth 110.6 in
Vertical Wall 88.6 in
Maximum Reach - Ground Level 202 in
Maximum Reach 207.5 in
Maximum Dig Height 193.7 in
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
Track Width 70.1 in
Minimum Ground Clearance Below Undercarriage 12.2 in
Stick Length 49.6 in
Note
Dig Depth 122.4 in
Vertical Wall 94.1 in
Maximum Reach - Ground Level 211.8 in
Maximum Reach 216.9 in
Maximum Dig Height 197.6 in
Maximum Dump Clearance 141.7 in
Boom In Reach 73.2 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 68.9 in
O/A Shipping Height 97.6 in
Swing Bearing - Height 22.2 in
O/A Undercarriage Length 87.4 in
Overall Shipping Length* 190.9 in
Boom Swing - Right 34.3 °
Boom Swing - Left 640 mm
Track Belt/Shoe Width 11.8 in
Track Width 70.1 in
Minimum Ground Clearance Below Undercarriage 12.2 in
Stick Length 61.4 in
Note
Air Conditioning
Operator Sound Pressure (ISO 6396:2008) 78 dB(A)
Average Exterior Sound Pressure (ISO 6395:2008) 94 dB(A)
Note
Recyclability

Standard Equipment

  • ENGINE
  • HYDRAULICS
  • OPERATOR ENVIRONMENT
  • UNDERCARRIAGE
  • BOOM, STICK AND LINKAGES
  • GUARDING
  • ELECTRICAL

Optional Equipment

  • OPERATOR ENVIRONMENT
  • UNDERCARRIAGE
  • BOOM, STICK AND LINKAGES
  • ELECTRICAL
  • GUARDING
  • OTHER