304E2 CR Hydraulic Excavator

The Cat E2 Series Mini Hydraulic Excavators are designed to carry on the solid performance of their E Series predecessors, while adding even greater value for the customer. The new High Definition Hydraulic (HDH) System, redesigned operator station and enhanced digital control panel specially designed for Cat Mini Excavators – COMPASS (Complete, Operation, Maintenance, Performance And Security System) – are all standard features that improve performance and increase value.

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Engine Model
Cat® C2.4
Net Power
40.2 hp
Operating Weight
8906 lb
Net Power (ISO 9249)
40.2 hp

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Product Specs

Engine

Engine Model
Cat® C2.4
Net Power
40.2hp
Net Power (ISO 9249)
40.2hp
Bore
3.4in
Stroke
4in
Displacement
146in3
Rated Net Power (ISO 9249)
40.2hp
Gross Power
41.8hp
Note
Cat C2.4 engine meets U.S. EPA Tier 4 Interim/EU Stage IIIA emission standards.
Engine Model
Cat® C2.4
Net Power
40.2HP
Net Power - ISO 9249
40.2HP
Bore
3.4in
Displacement
146in³
Stroke
4in
Gross Power
41.8HP
Note
Cat C2.4 engine meets U.S. EPA Tier 4 Interim/EU Stage IIIA emission standards.
Rated Net Power - ISO 9249
40.2HP

Weights

Operating Weight
8906lb
Operating Weight - With Cab
8906lb
Operating Weight with Canopy
8564lb
Note
Weight includes rubber tracks, bucket, operator, full fuel and auxiliary lines.
Operating Weight
8906lb
Note
Weight includes rubber tracks, bucket, operator, full fuel and auxiliary lines.
Operating Weight - With Canopy
8564lb
Note
8564lb

Swing System

Machine Swing Speed
10rpm
Boom Swing - Left - Without Stop
70°
Boom Swing - Left - With Stop
55°
Swing - Right
50°
Machine Swing Speed
10r/min

Blade

Width
77in
Height
13in
Dig Depth
19in
Lift Height
16in
Width
77in

Service Refill Capacities

Cooling System
1.5gal
Engine Oil
1.8gal
Hydraulic Tank
11.2gal
Fuel Tank
12.2gal
Hydraulic System
17.2gal
Cooling System
1.5gal (US)
Engine Oil
1.8gal (US)
Hydraulic Tank
11.2gal (US)
Fuel Tank
12.2gal (US)
Hydraulic System
17.2gal (US)

Travel System

Travel Speed – High
3.2mph
Travel Speed – Low
2.1mph
Maximum Traction Force - High Speed
3799lbf
Maximum Traction Force - Low Speed
6969lbf
Ground Pressure
4.3psi
Travel Speed - High
3.2mile/h
Travel Speed - Low
2.1mile/h
Ground Pressure
4.3psi

Hydraulic System

Pump Flow
26.4gal/min
Operating Pressure - Equipment
3553psi
Operating Pressure - Travel
3553psi
Operating Pressure - Swing
3132psi
Auxiliary Circuit - Primary
18.5gal/min
Auxiliary Circuit - Secondary
6.6gal/min
Digging Force - Stick - Standard
4856lbf
Digging Force - Stick - Long
4384lbf
Digging Force = Bucket
8498lbf
Note
Load sensing hydraulics with variable displacement piston pump.
Digging Force - Bucket
8498lbf
Note
Load sensing hydraulics with variable displacement piston pump.

Operating Specifications

Maximum Dig Depth
135in
Maximum Dig Depth
135in

Standard/Optional Features

Standard Equipment:

  • Stick
    • – Long stick (optional in Europe)

Optional Equipment:

  • Stick
    • – Standard stick (Europe only)