Cat Mini Excavators 304E2 CR

Cat Mini Excavators 304E2 CR

Overall Weight 4080.0 kg
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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

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.



SAFETY

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.




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

Units:

Engine ModelCat® C2.4 | Cat® C2.4
Net Power40.2 HP | 30.0 kW
Rated Net Power - 2,200 rpm - ISO 9249/EEC 80/126940.2 HP | 30.0 kW
Bore3.4 in | 87.0 mm
Displacement146.0 in³ | 2.4 l
Stroke4.0 in | 102.4 mm
Emissions*Meets U.S. EPA Tier 4 Final/EU Stage IIIA emission standards. | *Meets U.S. EPA Tier 4 Final/EU Stage IIIA emission standards.
Gross Power - ISO 1439641.8 HP | 31.2 kW

Weights*

Operating Weight8996.0 lb | 4080.0 kg
Weight - Canopy, Standard Stick8655.0 lb | 3925.0 kg
Note*Weight includes counterweight, rubber tracks, bucket, operator, full fuel and auxiliary lines. | *Weight includes counterweight, rubber tracks, bucket, operator, full fuel and auxiliary lines.
Weight - Cab, Long Stick8996.0 lb | 4080.0 kg
Weight - Cab, Standard Stick8930.0 lb | 4050.0 kg
Weight - Canopy, Long Stick8721.0 lb | 3955.0 kg

Travel System

Maximum Traction Force - High Speed3799.0 lb | 16.9 kN
Maximum Traction Force - Low Speed6969.0 lb | 31.0 kN
Travel Speed - High3.2 mile/h | 5.2 km/h
Travel Speed - Low2.1 mile/h | 3.3 km/h
Gradeability - Maximum30° | 30°
Ground Pressure - Cab4.3 psi | 29.5 kPa
Ground Pressure - Canopy4.1 psi | 28.1 kPa

Hydraulic System

Auxiliary Circuit - Primary (186 bar/2,734 psi)18.5 gal/min | 70.0 l/min
Auxiliary Circuit - Secondary (174 bar/2,524 psi)6.6 gal/min | 25.0 l/min
Digging Force - Stick - Long4384.0 lb | 19.5 kN
Digging Force - Stick - Standard4856.0 lb | 21.6 kN
Operating Pressure - Equipment3553.0 psi | 245.0 bar
Operating Pressure - Swing3132.0 psi | 216.0 bar
Operating Pressure - Travel3553.0 psi | 245.0 bar
Pump Flow at 2,200 rpm26.4 gal/min | 100.0 l/min
Digging Force - Bucket8498.0 lb | 37.8 kN
TypeLoad Sensing Hydraulics with Variable Displacement Piston Pump | Load Sensing Hydraulics with Variable Displacement Piston Pump

Swing System

Machine Swing Speed10.0 r/min | 10.0 r/min
Boom Swing - Left - With Stop*55° | 55°
Boom Swing - Left - Without Stop*70° | 70°
Boom Swing - Right50° | 50°
Note*Automatic swing brake, spring applied, hydraulic release. | *Automatic swing brake, spring applied, hydraulic release.

Blade

Width76.8 in | 1950.0 mm
Height12.8 in | 325.0 mm
Dig Depth18.5 in | 470.0 mm
Lift Height15.7 in | 400.0 mm

Service Refill Capacities

Cooling System1.5 gal (US) | 5.5 l
Engine Oil2.5 gal (US) | 9.5 l
Hydraulic Tank11.2 gal (US) | 42.3 l
Fuel Tank12.2 gal (US) | 46.0 l
Hydraulic System17.2 gal (US) | 65.0 l

Cab

Dynamic Operator Sound Pressure Level (ISO 6396:2008)81.0 dB(A) | 81.0 dB(A)
Exterior Sound Power Level - ISO 6395:2008*96.0 dB(A) | 96.0 dB(A)
Note*European Union Directive “2000/14/EC” | *European Union Directive “2000/14/EC”

Certification - Cab and Canopy

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

Dimensions - Long Stick

Boom Height - Shipping Position70.0 in | 1770.0 mm
Boom In Reach87.0 in | 2220.0 mm
Boom Swing - Left26.0 in | 670.0 mm
Boom Swing - Right29.0 in | 735.0 mm
Dig Depth135.0 in | 3430.0 mm
Maximum Blade Depth19.0 in | 470.0 mm
Maximum Blade Height16.0 in | 400.0 mm
Maximum Dig Height200.0 in | 5070.0 mm
Maximum Dump Clearance145.0 in | 3690.0 mm
Maximum Reach220.0 in | 5590.0 mm
Maximum Reach - Ground Level215.0 in | 5470.0 mm
O/A Shipping Height98.0 in | 2500.0 mm
O/A Shipping Length194.0 in | 4930.0 mm
O/A Track Width77.0 in | 1950.0 mm
O/A Undercarriage Length87.0 in | 2220.0 mm
Swing Bearing - Height22.0 in | 565.0 mm
Tail Swing38.0 in | 975.0 mm
Track Belt/Shoe Width14.0 in | 350.0 mm
Vertical Wall101.0 in | 2560.0 mm

Dimensions - Standard Stick

Boom Height - Shipping Position58.0 in | 1480.0 mm
Boom In Reach83.0 in | 2110.0 mm
Boom Swing - Left26.0 in | 670.0 mm
Boom Swing - Right29.0 in | 735.0 mm
Dig Depth123.0 in | 3130.0 mm
Maximum Blade Depth19.0 in | 470.0 mm
Maximum Blade Height16.0 in | 400.0 mm
Maximum Dig Height196.0 in | 4980.0 mm
Maximum Dump Clearance141.0 in | 3590.0 mm
Maximum Reach211.0 in | 5350.0 mm
Maximum Reach - Ground Level206.0 in | 5220.0 mm
O/A Shipping Height98.0 in | 2500.0 mm
O/A Shipping Length190.0 in | 4820.0 mm
O/A Track Width77.0 in | 1950.0 mm
O/A Undercarriage Length87.0 in | 2220.0 mm
Swing Bearing - Height22.0 in | 565.0 mm
Tail Swing38.0 in | 975.0 mm
Track Belt/Shoe Width14.0 in | 350.0 mm
Vertical Wall95.0 in | 2420.0 mm

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

Blade Down - Front3462.0 lb | 1570.0 kg
Blade Down - Side2007.0 lb | 910.0 kg
Blade Up - Front1808.0 lb | 820.0 kg
Blade Up - Side1808.0 lb | 820.0 kg

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

Blade Down - Front1896.0 lb | 860.0 kg
Blade Down - Side1058.0 lb | 480.0 kg
Blade Up - Front948.0 lb | 430.0 kg
Blade Up - Side948.0 lb | 430.0 kg

Operating Specifications

Machine Overhang0.0 in | 0.0 mm
Stick Length - Long64.0 in | 1615.0 mm
Stick Length - Standard52.0 in | 1315.0 mm

Undercarriage

Number of Carrier Rollers1 | 1
Number of Track Rollers4 | 4
Track Roller TypeCenter Flange | Center Flange

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