304

304
Caterpillar
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The Cat® 304 Mini Excavator delivers power and performance in a compact size to help you work in a wide range of applications.
The Cat® 304 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

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Specifications

Specification Value Unit
Gross Power - ISO 14396 48.4 hp
Net Power 45 hp
Engine Model
Net Power - 2,400 rpm - ISO 9249, 80/1269/EEC 45 hp
Bore 3.3 in
Stroke 3.9 in
Displacement 101 in³
Emissions
Note
Operating Weight 9867 lb
Minimum Operating Weight with Canopy* 8655 lb
Maximum Operating Weight with Canopy** 9647 lb
Minimum Operating Weight with Cab* 8875 lb
Maximum Operating Weight with Cab** 9867 lb
Note (1)
Note (2)
Counterweight 496 lb
Long Stick 66 lb
Steel Tracks 430 lb
Angle Blade 243 lb
Travel Speed - High 3.2 mile/h
Travel Speed - Low 2.2 mile/h
Maximum Traction Force - High Speed 4271 lbf
Maximum Traction Force - Low Speed 7329 lbf
Ground Pressure - Minimum Weight 4.2 psi
Ground Pressure - Maximum Weight 4.9 psi
Gradeability - Maximum
Cooling System 2.9 gal (US)
Engine Oil 1.6 gal (US)
Fuel Tank 17 gal (US)
Hydraulic Tank 14 gal (US)
Hydraulic System 17 gal (US)
Type
Pump Flow at 2,400 rpm 25 gpm
Operating Pressure - Equipment 3553 psi
Operating Pressure - Travel 3553 psi
Operating Pressure - Swing 2611 psi
Auxiliary Circuit - Primary - Flow 21 gpm
Auxiliary Circuit - Primary - Pressure 3553 psi
Auxiliary Circuit - Secondary - Flow 7 gpm
Auxiliary Circuit - Secondary - Pressure 3553 psi
Digging Force - Stick - Standard 4721 lbf
Digging Force - Stick - Long 4316 lbf
Digging Force - Bucket 8588 lbf
Note
Machine Swing Speed 9 r/min
Boom Swing - Left
Boom Swing - Right
Straight Blade Width 66.9 in
Straight Blade Height 14.2 in
Angle Blade Width 66.9 in
Angle Blade Height 14.2 in
Angle Blade - Left
Angle Blade - Right
Roll Over Protective Structure (ROPS)
Top Guard
Dig Depth 126.4 in
Vertical Wall 94.3 in
Maximum Reach - Ground Level 204.7 in
Maximum Reach 209.8 in
Maximum Dig Height 198.4 in
Maximum Dump Clearance 143.5 in
Boom In Reach 88.8 in
Tail Swing without Counterweight 47.4 in
Tail Swing with Counterweight 51.2 in
Maximum Blade Height 16.5 in
Maximum Blade Depth 18.7 in
Boom Height - Shipping Position 63.8 in
O/A Shipping Height 100 in
Swing Bearing - Height 21.9 in
O/A Undercarriage Length 87 in
Overall Shipping Length* 194.9 in
Boom Swing - Right 28.7 in
Boom Swing - Left 20.9 in
Track Belt/Shoe Width 13.8 in
Track Width 66.9 in
Ground Clearance 12 in
Stick Length 54.9 in
Note
Dig Depth 138.2 in
Vertical Wall 99.8 in
Maximum Reach - Ground Level 214.4 in
Maximum Reach 219.3 in
Maximum Dig Height 201.8 in
Maximum Dump Clearance 147.2 in
Boom In Reach 92.1 in
Tail Swing without Counterweight 47.4 in
Tail Swing with Counterweight 51.2 in
Maximum Blade Height 16.5 in
Maximum Blade Depth 18.7 in
Boom Height - Shipping Position 75.2 in
O/A Shipping Height 100 in
Swing Bearing - Height 21.9 in
O/A Undercarriage Length 87 in
Overall Shipping Length* 194.9 in
Boom Swing - Right 28.7 in
Boom Swing - Left 20.9 in
Track Belt/Shoe Width 13.8 in
Track Width 66.9 in
Ground Clearance 12 in
Stick Length 66.7 in
Note
Air Conditioning
Operator Sound Pressure (ISO 6396:2008) 76 dB(A)
Average Exterior Sound Pressure (ISO 6395:2008) 97 dB(A)
Note
Recyclability

Standard Equipment

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

Optional Equipment

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