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304E2 CR Mini Hydraulic Excavator

304E2 CR Mini Hydraulic Excavator

At a Glance

Engine Model
Cat® C2.4
Net Power
40.2 HP
Machine Swing Speed
10 r/min
Width
76.8 in
Request a Demo Machine Comparison

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

Swing System

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Machine Swing Speed 10r/min
Boom Swing - Left - With Stop* 55°
Note *Automatic swing brake, spring applied, hydraulic release.
Boom Swing - Right 50°
Boom Swing - Left - Without Stop* 70°

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)

Dimensions - Long Stick

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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
Dig Depth 135in
Vertical Wall 101in
Track Belt/Shoe Width 14in
Tail Swing 38in

Certification - Cab and Canopy

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

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
Type Load Sensing Hydraulics with Variable Displacement Piston Pump
Digging Force - Bucket 8498lb
Auxiliary Circuit - Primary (186 bar/2,734 psi) 18.5gal/min
Digging Force - Stick - Long 4384lb
Auxiliary Circuit - Secondary (174 bar/2,524 psi) 6.6gal/min

Weights*

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Weight - Cab, Long Stick 8996lb
Note *Weight includes counterweight, rubber tracks, bucket, operator, full fuel and auxiliary lines.
Weight - Canopy, Long Stick 8721lb
Weight - Canopy, Standard Stick 8655lb
Operating Weight 8996lb
Weight - Cab, Standard Stick 8930lb

Undercarriage

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

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
Gradeability - Maximum 30°
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

Air Conditioning System

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Air Conditioning The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a (Global Warming Potential = 1430). The system contains 1.0 kg of refrigerant which has a CO2 equivalent of 1.4 metric tonnes.

Cab

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