304E2 CR Mini Hydraulic Excavator
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
- 40.2HP
- Engine Model
- Cat C2.4
- Gross Power - ISO 14396
- 41.8HP
- Stroke
- 4in
- Bore
- 3.4in
- Displacement
- 146in³
- Net Power - 2,200 rpm - ISO 9249/EEC 80/1269
- 40.2HP
- 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
- 8996lb
- Weight - Canopy, Standard Stick
- 8655lb
- Weight - Canopy, Long Stick
- 8721lb
- Weight - Cab, Standard Stick
- 8930lb
- Weight - Cab, Long Stick
- 8996lb
Dimensions - Long Stick
- Dig Depth
- 135in
- Maximum Dig Height
- 200in
- Maximum Blade Height
- 16in
- Maximum Blade Depth
- 19in
- Boom Swing - Right
- 29in
- Boom Swing - Left
- 26in
- Boom In Reach
- 87in
- Boom Height - Shipping Position
- 70in
- Tail Swing
- 38in
- Track Belt/Shoe Width
- 14in
- Swing Bearing - Height
- 22in
- Vertical Wall
- 101in
- O/A Undercarriage Length
- 87in
- O/A Track Width
- 77in
- O/A Shipping Length
- 194in
- O/A Shipping Height
- 98in
- Maximum Reach - Ground Level
- 215in
- Maximum Reach
- 220in
- Maximum Dump Clearance
- 145in
Swing System
- Machine Swing Speed
- 10r/min
Blade
- Width
- 76.8in
- Height
- 12.8in
- Dig Depth
- 18.5in
- Lift Height
- 15.7in
Service Refill Capacities
- Cooling System
- 1.5gal (US)
- Engine Oil
- 2.5gal (US)
- Hydraulic Tank
- 11.2gal (US)
- Fuel Tank
- 12.2gal (US)
- Hydraulic System
- 17.2gal (US)
Hydraulic System
- Digging Force - Bucket
- 8498lb
- Digging Force - Stick - Long
- 4384lb
- Pump Flow at 2,200 rpm
- 26.4gal/min
- Operating Pressure - Travel
- 3553psi
- Operating Pressure - Swing
- 3132psi
- Operating Pressure - Equipment
- 3553psi
- Digging Force - Stick - Standard
- 4856lb
- Note
- Flow and pressure are not combinable. Under load, as flow rises pressure goes down.
- Maximum Auxiliary Circuit - Secondary - Flow at Pump
- 6.6gal/min
- Maximum Auxiliary Circuit - Primary - Flow at Pump
- 17.2gal/min
- Maximum Auxiliary Circuit - Primary - Pressure at Pump
- 3553psi
- Maximum Auxiliary Circuit - Secondary - Pressure at Pump
- 3553psi
Dimensions - Standard Stick
- Vertical Wall
- 95in
- Track Belt/Shoe Width
- 14in
- O/A Track Width
- 77in
- Tail Swing
- 38in
- Swing Bearing - Height
- 22in
- O/A Undercarriage Length
- 87in
- O/A Shipping Length
- 190in
- Maximum Blade Height
- 16in
- Maximum Dig Height
- 196in
- Maximum Dump Clearance
- 141in
- Maximum Reach
- 211in
- Maximum Reach - Ground Level
- 206in
- O/A Shipping Height
- 98in
- Maximum Blade Depth
- 19in
- Dig Depth
- 123in
- Boom Swing - Right
- 29in
- Boom In Reach
- 83in
- Boom Swing - Left
- 26in
- Boom Height - Shipping Position
- 58in
Travel System
- Travel Speed - Low
- 2.1mile/h
- Travel Speed - High
- 3.2mile/h
- Maximum Traction Force - Low Speed
- 6969lb
- Maximum Traction Force - High Speed
- 3799lb
- Ground Pressure - Canopy
- 4.1psi
- Ground Pressure - Cab
- 4.3psi
Operating Specifications
- Stick Length - Long
- 64in
- Machine Overhang
- 0in
- Stick Length - Standard
- 52in
Lift Capacities at Ground Level - Lift Point Radius: 4500 mm (177 in)
- Blade Up - Side
- 948lb
- Blade Up - Front
- 948lb
- Blade Down - Side
- 1058lb
- Blade Down - Front
- 1896lb
Lift Capacities at Ground Level - Lift Point Radius: 3000 mm (118 in)
- Blade Up - Side
- 1808lb
- Blade Down - Side
- 2007lb
- Blade Up - Front
- 1808lb
- Blade Down - Front
- 3462lb
Cab
- Dynamic Operator Sound Pressure Level (ISO 6396:2008)
- 81dB(A)
- Exterior Sound Power Level - ISO 6395:2008*
- 96dB(A)
QUALITY
The durable hoods and frame and the compact radius design of the 304E2 let you work comfortably and confidently in confined areas. The operator environment includes a high quality suspension seat, easy to adjust armrests and 100% pilot controls which offer consistent and long-lasting controllability.
EFFICIENCY
High Definition Hydraulic System provides a load sensing and flow sharing capability leading to operational precision, efficient performance and greater controllability. Power on Demand provides optimal efficiency and performance the moment you need it. This automatic system ensures fuel efficiency through appropriate engine rating to meet all operational needs as required.
VERSATILITY
Broad range of Cat Work Tools make the Cat Mini Excavator a versatile machine able to meet the requirements of any job site. Over 200 degrees of bucket rotation provides greater material retention during truck loading and easier flat wall digging without having to reposition the machine.
PERFORMANCE
Front shovel bucket orientation provides the operator with more ways to get the job done faster. COMPASS Control Panel is a standard feature that allows the operator to easily adjust auxiliary flows to achieve the optimal work tool performance, activate auto idle or economy mode for improved fuel efficiency and utilize the security system to ensure protection of valuable assets with the simple touch of a button. The Site Reference System included in the COMPASS monitor provides output from pitch and roll sensors to aid in grading and level trenching. This impacts accuracy and productivity for job site finishing.
SERVICEABILITY
Convenient service and maintenance requirements include ease of access to daily check points, 500 hour engine oil and filter change period, 50 hour grease interval on front implement, S·O·SSM oil sampling valve and overall long term durability.
SAFETY
All Cat Mini Excavators from 3.5 metric tons to 10 metric tons are ROPS, TOPS and Top Guard Level 1 certified and include the Cat Interlock (hydraulic lockout) System, a certified accumulator which allows for auxiliary pressure to be released, making connecting and disconnecting work tools safer and easier, and a travel alarm. All of these safety features are standard on the E2 model lineup (travel alarm optional in Europe).
