304E2 CR Mini Hydraulic Excavator
Overview
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
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| Net Power |
40.2HP |
| Engine Model |
Cat C2.4 |
| Stroke |
4in |
| Displacement |
146in³ |
| Bore |
3.4in |
| 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. |
| Gross Power - ISO 14396 |
41.8HP |
Weights*
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| Operating Weight |
8996lb |
| Weight - Cab, Long Stick |
8996lb |
| Weight - Canopy, Long Stick |
8721lb |
| Weight - Canopy, Standard Stick |
8655lb |
| Weight - Cab, Standard Stick |
8930lb |
Dimensions - Long Stick
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| Dig Depth |
135in |
| Boom Swing - Right |
29in |
| Boom Swing - Left |
26in |
| Boom In Reach |
87in |
| Boom Height - Shipping Position |
70in |
| Swing Bearing - Height |
22in |
| 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 |
| Maximum Dig Height |
200in |
| Maximum Blade Height |
16in |
| Maximum Blade Depth |
19in |
| Vertical Wall |
101in |
| Track Belt/Shoe Width |
14in |
| Tail Swing |
38in |
Swing System
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| Machine Swing Speed |
10r/min |
Blade
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| Width |
76.8in |
| Height |
12.8in |
| Dig Depth |
18.5in |
| Lift Height |
15.7in |
Service Refill Capacities
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| 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
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| Pump Flow at 2,200 rpm |
26.4gal/min |
| Operating Pressure - Swing |
3132psi |
| Operating Pressure - Travel |
3553psi |
| Operating Pressure - Equipment |
3553psi |
| Digging Force - Stick - Standard |
4856lb |
| Digging Force - Bucket |
8498lb |
| Digging Force - Stick - Long |
4384lb |
| 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
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| Maximum Reach |
211in |
| Maximum Dump Clearance |
141in |
| Maximum Dig Height |
196in |
| Maximum Blade Height |
16in |
| Maximum Blade Depth |
19in |
| Dig Depth |
123in |
| Boom In Reach |
83in |
| Boom Swing - Left |
26in |
| Boom Swing - Right |
29in |
| Vertical Wall |
95in |
| Track Belt/Shoe Width |
14in |
| Swing Bearing - Height |
22in |
| Tail Swing |
38in |
| O/A Undercarriage Length |
87in |
| O/A Track Width |
77in |
| O/A Shipping Length |
190in |
| O/A Shipping Height |
98in |
| Maximum Reach - Ground Level |
206in |
| Boom Height - Shipping Position |
58in |
Travel System
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| Ground Pressure - Canopy |
4.1psi |
| Ground Pressure - Cab |
4.3psi |
| Travel Speed - Low |
2.1mile/h |
| Travel Speed - High |
3.2mile/h |
| Maximum Traction Force - Low Speed |
6969lb |
| Maximum Traction Force - High Speed |
3799lb |
Operating Specifications
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| Stick Length - Standard |
52in |
| Stick Length - Long |
64in |
| Machine Overhang |
0in |
Lift Capacities at Ground Level - Lift Point Radius: 4500 mm (177 in)
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| Blade Up - Side |
948lb |
| Blade Up - Front |
948lb |
| Blade Down - Front |
1896lb |
| Blade Down - Side |
1058lb |
Lift Capacities at Ground Level - Lift Point Radius: 3000 mm (118 in)
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| Blade Up - Side |
1808lb |
| Blade Up - Front |
1808lb |
| Blade Down - Side |
2007lb |
| Blade Down - Front |
3462lb |
Cab
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| Exterior Sound Power Level - ISO 6395:2008* |
96dB(A) |
| Dynamic Operator Sound Pressure Level (ISO 6396:2008) |
81dB(A) |
Standard Equipment:
Engine
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Cat C2.4 diesel engine (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)
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Automatic engine idle
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Automatic engine shut-off
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Automatic two speed travel
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Diesel Particulate Filter (North America only)
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Diesel Oxidation Catalyst (North America only)
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Fuel and water separator
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Power on demand
Hydraulic System
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1-way and 2-way (combined function)
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Accumulator
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Automatic swing parking brake
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Auxiliary hydraulic lines
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Adjustable auxiliary relief
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Auxiliary line quick disconnects
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Cat interlock system: hydraulic lockout
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Continuous auxiliary flow
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Ecology drain
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Hydraulic oil cooler
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High definition hydraulics
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Load sensing/flow sharing
Operator Environment
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100% pilot control ergonomic joysticks
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Adjustable armrests
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COMPASS: complete, operation, maintenance, performance and security system
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Cup holder
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Hydraulic neutral lockout bar
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Literature holder
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Pattern changer (optional in Europe)
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Site reference system: leveling
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Tool storage area
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Travel control pedals with hand levers
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Washable floor mat
Undercarriage
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Dozer blade with float function
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Track, rubber belt, 350 mm (14 in) width
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Tie down eyes on track frame
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Towing eye on base frame
Front Linkage
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200 degree bucket rotation
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Certified lifting eye on bucket linkage (optional in Europe)
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Front shovel capable
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Thumb ready stick
Electrical
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12 volt electrical system
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60 ampere alternator
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650 CCA maintenance free battery
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Fuse box
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Ignition key start/stop switch
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Slow blow fuse
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Warning horn
Lights And Mirrors
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Boom light with time delay capability
Safety And Security
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Anti-theft system (COMPASS)
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Caterpillar Corporate “One Key” System
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Door locks
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Lockable fuel cap
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Retractable seat belt
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Roll Over Protective Structure (ROPS) (ISO 12117-2)
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Tip Over Protective Structure (TOPS) (ISO 12117)
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Top guard – ISO 10262 (Level 1)
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Travel alarm (optional in Europe)
Optional Equipment:
Hydraulic System
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Quick coupler lines
Boom lowering check valve
Stick lowering check valve
Secondary auxiliary hydraulic lines
Operator Environment
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Cab:- Air conditioning
- Heat
- High back suspension seat
- Interior light
- Interlocking front window system
- Radio
- Windshield wiper
Undercarriage
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Power angle blade
Track, double grouser (steel), 350 mm (14 in)
Front Linkage
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Quick coupler: manual or hydraulic
Thumb
Buckets
Full range of performance matched work tools
Lights And Mirrors
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Light, cab with time delay capability
Mirror, canopy right
Mirror, canopy left
Mirror, cab rear
Safety And Security
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Battery disconnect
Beacon socket
Front wire mesh guard
Rearview camera
Vandal guard
