Menu
Call 1-800-RENTCAT
Rent Now Contact Us View Locations

304E2 CR Mini Hydraulic Excavator

304E2 CR Mini Hydraulic Excavator

Download the Product Brochure
Continue Browsing

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

Engine Model
Cat® C2.4
Net Power
40.2 hp
Rated Net Power @ 2,200 rpm – ISO 9249/EEC 80/1269
40.2 hp
Bore
3.4 in
Stroke
4 in
Displacement
146 in3
Gross Power – ISO 14396
41.8 hp
Emissions
*Meets U.S. EPA Tier 4 Final/EU Stage IIIA emission standards.

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
Note
*Weight includes counterweight, rubber tracks, bucket, operator, full fuel and auxiliary lines.

Travel System

Travel Speed – High
3.2 mph
Travel Speed – Low
2.1 mph
Maximum Traction Force – High Speed
3799 lb
Maximum Traction Force – Low Speed
6969 lb
Ground Pressure – Canopy
4.1 psi
Ground Pressure – Cab
4.3 psi
Gradeability (maximum)
30°

Hydraulic System

Pump Flow at 2,200 rpm
26.4 gal/min
Operating Pressure – Equipment
3553 psi
Operating Pressure – Travel
3553 psi
Operating Pressure – Swing
3132 psi
Auxiliary Circuit – Primary (186 bar/2,734 psi)
18.5 gal/min
Auxiliary Circuit – Secondary (174 bar/2,524 psi)
6.6 gal/min
Digging Force – Stick (standard)
4856 lb
Digging Force – Stick (long)
4384 lb
Digging Force – Bucket
8498 lb
Type
Load Sensing Hydraulics with Variable Displacement Piston Pump

Swing System

Machine Swing Speed
10 rpm
Boom Swing – Left (without stop)*
70°
Boom Swing – Left (with stop)*
55°
Boom Swing – Right
50°
Note
*Automatic swing brake, spring applied, hydraulic release.

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
Engine Oil
2.5 gal
Hydraulic Tank
11.2 gal
Fuel Tank
12.2 gal
Hydraulic System
17.2 gal

Operating Specifications

Stick Length – Standard
52 in
Stick Length – Long
64 in
Machine Overhang
0 in

Cab

Dynamic Operator Sound Pressure Level (ISO 6396:2008)
81 dB(A)
Exterior Sound Power Level (ISO 6395:2008)*
96 dB(A)
Note
*European Union Directive “2000/14/EC”

Certification – Cab and Canopy

Roll Over Protective Structure (ROPS)
ISO 12117-2
Tip Over Protective Structure (TOPS)
ISO 12117
Top Guard
ISO 10262 (Level I)

Undercarriage

Number of Carrier Rollers
1
Number of Track Rollers
4
Track Roller Type
Center Flange

Lift Capacities at Ground Level – Lift Point Radius: 3000 mm (118 in)

Blade Down – Front
3462 lb
Blade Up – Front
1808 lb
Blade Down – Side
2007 lb
Blade Up – Side
1808 lb

Lift Capacities at Ground Level – Lift Point Radius: 4500 mm (177 in)

Blade Down – Front
1896 lb
Blade Up – Front
948 lb
Blade Down – Side
1058 lb
Blade Up – Side
948 lb

Dimensions – Standard Stick

Dig Depth
123 in
Vertical Wall
95 in
Maximum Reach at Ground Level
206 in
Maximum Reach
211 in
Maximum Dig Height
196 in
Maximum Dump Clearance
141 in
Boom In Reach
83 in
Tail Swing
38 in
Maximum Blade Height
16 in
Maximum Blade Depth
19 in
Boom Height in Shipping Position
58 in
O/A Shipping Height
98 in
Swing Bearing Height
22 in
O/A Undercarriage Length
87 in
O/A Shipping Length
190 in
Boom Swing Right
29 in
Boom Swing Left
26 in
Track Belt/Shoe Width
14 in
O/A Track Width
77 in

Dimensions – Long Stick

Dig Depth
135 in
Vertical Wall
101 in
Maximum Reach at Ground Level
215 in
Maximum Reach
220 in
Maximum Dig Height
200 in
Maximum Dump Clearance
145 in
Boom In Reach
87 in
Tail Swing
38 in
Maximum Blade Height
16 in
Maximum Blade Depth
19 in
Boom Height in Shipping Position
70 in
O/A Shipping Height
98 in
Swing Bearing Height
22 in
O/A Undercarriage Length
87 in
O/A Shipping Length
194 in
Boom Swing Right
29 in
Boom Swing Left
26 in
Track Belt/Shoe Width
14 in
O/A Track Width
77 in
  • ENGINE
    • Engine block heater
  • HYDRAULIC SYSTEM
    • Quick coupler lines
    • Boom lowering check valve
    • Stick lowering check valve
    • Secondary auxiliary hydraulic lines
  • OPERATOR ENVIRONMENT
    • Cab:
      • Air conditioning
      • Heat
      • High back suspension seat
      • Interior light
      • Interlocking front window system
      • Radio
      • Windshield wiper
  • UNDERCARRIAGE
    • Power angle blade
    • Track, double grouser (steel), 350 mm (14 in)
  • FRONT LINKAGE
    • Quick coupler: manual or hydraulic
    • Thumb
    • Buckets
    • Full range of performance matched work tools
      • Auger, hammer, ripper
  • LIGHTS AND MIRRORS
    • Light, cab with time delay capability
    • Mirror, canopy right
    • Mirror, canopy left
    • Mirror, cab rear
  • SAFETY AND SECURITY
    • Battery disconnect
    • Beacon socket
    • Front wire mesh guard
    • Rearview camera
    • Vandal guard
  • TECHNOLOGY
    • Product Link™