The Cat® 304E2 CR Mini Hydraulic Excavator delivers efficient performance, durability and versatility in a compact design to help you work in a variety of applications.
Engine
- Net Power
- 40.2 HP
- Engine Model
- Cat C2.4
- Stroke
- 4 in
- Displacement
- 146 in³
- Bore
- 3.4 in
- Net Power - 2,200 rpm - ISO 9249/EEC 80/1269
- 40.2 HP
- Gross Power - ISO 14396
- 41.8 HP
- Note
- The Cat C2.4 meets U.S. EPA Tier 4 Final emission standards for North America, EU Stage V emission standards for Europe and Tier 4 Interim emission standards for all other regions.
Weights*
- Operating Weight
- 8996 lb
- Weight - Canopy, Standard Stick
- 8655 lb
- Weight - Canopy, Long Stick
- 8721 lb
- Weight - Cab, Standard Stick
- 8930 lb
- Weight - Cab, Long Stick
- 8996 lb
Dimensions - Long Stick
- Dig Depth
- 135 in
- Maximum Reach
- 220 in
- Maximum Dig Height
- 200 in
- Maximum Dump Clearance
- 145 in
- Boom Swing - Left
- 26 in
- Maximum Blade Height
- 16 in
- Maximum Blade Depth
- 19 in
- Boom Swing - Right
- 29 in
- Boom In Reach
- 87 in
- Boom Height - Shipping Position
- 70 in
- Vertical Wall
- 101 in
- Track Belt/Shoe Width
- 14 in
- Tail Swing
- 38 in
- Swing Bearing - Height
- 22 in
- O/A Undercarriage Length
- 87 in
- O/A Track Width
- 77 in
- O/A Shipping Height
- 98 in
- O/A Shipping Length
- 194 in
- Maximum Reach - Ground Level
- 215 in
Swing System
- Machine Swing Speed
- 10 r/min
Blade
- Width
- 76.8 in
- Height
- 12.8 in
- Dig Depth
- 18.5 in
- Lift Height
- 15.7 in
Service Refill Capacities
- Cooling System
- 1.5 gal (US)
- Engine Oil
- 2.5 gal (US)
- Hydraulic Tank
- 11.2 gal (US)
- Fuel Tank
- 12.2 gal (US)
- Hydraulic System
- 17.2 gal (US)
Dimensions - Standard Stick
- Maximum Dump Clearance
- 141 in
- Maximum Reach
- 211 in
- Maximum Reach - Ground Level
- 206 in
- Boom Swing - Right
- 29 in
- Boom Swing - Left
- 26 in
- Boom In Reach
- 83 in
- Boom Height - Shipping Position
- 58 in
- Maximum Blade Depth
- 19 in
- Maximum Dig Height
- 196 in
- Maximum Blade Height
- 16 in
- Vertical Wall
- 95 in
- Tail Swing
- 38 in
- Track Belt/Shoe Width
- 14 in
- Swing Bearing - Height
- 22 in
- O/A Undercarriage Length
- 87 in
- O/A Track Width
- 77 in
- O/A Shipping Length
- 190 in
- O/A Shipping Height
- 98 in
- Dig Depth
- 123 in
Hydraulic System
- Digging Force - Stick - Long
- 4384 lb
- Operating Pressure - Travel
- 3553 psi
- Pump Flow at 2,200 rpm
- 26.4 gal/min
- Digging Force - Stick - Standard
- 4856 lb
- Operating Pressure - Equipment
- 3553 psi
- Operating Pressure - Swing
- 3132 psi
- Digging Force - Bucket
- 8498 lb
- Note
- Flow and pressure are not combinable. Under load, as flow rises pressure goes down.
- Maximum Auxiliary Circuit - Secondary - Flow at Pump
- 6.6 gal/min
- Maximum Auxiliary Circuit - Primary - Flow at Pump
- 17.2 gal/min
- Maximum Auxiliary Circuit - Primary - Pressure at Pump
- 3553 psi
- Maximum Auxiliary Circuit - Secondary - Pressure at Pump
- 3553 psi
Travel System
- Travel Speed - Low
- 2.1 mile/h
- Travel Speed - High
- 3.2 mile/h
- Maximum Traction Force - Low Speed
- 6969 lb
- Maximum Traction Force - High Speed
- 3799 lb
- Ground Pressure - Canopy
- 4.1 psi
- Ground Pressure - Cab
- 4.3 psi
Cab
- Exterior Sound Power Level - ISO 6395:2008*
- 96 dB(A)
- Dynamic Operator Sound Pressure Level (ISO 6396:2008)
- 81 dB(A)
Lift Capacities at Ground Level - Lift Point Radius: 4500 mm (177 in)
- Blade Down - Side
- 1058 lb
- Blade Up - Front
- 948 lb
- Blade Down - Front
- 1896 lb
- Blade Up - Side
- 948 lb
Lift Capacities at Ground Level - Lift Point Radius: 3000 mm (118 in)
- Blade Up - Side
- 1808 lb
- Blade Up - Front
- 1808 lb
- Blade Down - Side
- 2007 lb
- Blade Down - Front
- 3462 lb
Operating Specifications
- Stick Length - Long
- 64 in
- Stick Length - Standard
- 52 in
- Machine Overhang
- 0 in
