304E2 CR Mini Hydraulic Excavator

Engine Model: Cat® C2.4
Net Power: 40.2 hp
Weight – Canopy, Standard Stick: 8655 lb
Rated Net Power @ 2,200 rpm – ISO 9249/EEC 80/1269: 40.2 hp

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.

Product Specs

Engine

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

Weights*

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

Hydraulic System

Pump Flow at 2,200 rpm: 26.4gal/min
Auxiliary Circuit – Primary (186 bar/2,734 psi): 18.5gal/min
Auxiliary Circuit – Secondary (174 bar/2,524 psi): 6.6gal/min
Auxiliary Circuit - Primary (186 bar/2,734 psi): 18.5gal/min
Auxiliary Circuit - Secondary (174 bar/2,524 psi): 6.6gal/min
Pump Flow at 2,200 rpm: 26.4gal/min
Digging Force - Bucket: 8498lb
Type: Load Sensing Hydraulics with Variable Displacement Piston Pump
Note: Flow and pressure are not combinable. Under load, as flow rises pressure goes down.
Maximum Auxiliary Circuit - Secondary - Pressure at Pump: 3553psi
Operating Pressure - Equipment: 3553psi
Operating Pressure - Travel: 3553psi
Operating Pressure - Swing: 3132psi
Digging Force - Stick - Standard: 4856lb
Digging Force - Stick - Long: 4384lb
Digging Force – Bucket: 8498lb
Type: Load Sensing Hydraulics with Variable Displacement Piston Pump

Swing System

Machine Swing Speed: 10rpm
Boom Swing – Left (without stop)*: 70°
Boom Swing – Left (with stop)*: 55°
Boom Swing – Right: 50°
Machine Swing Speed: 10r/min
Boom Swing - Left - With Stop*: 55°
Boom Swing - Left - Without Stop*: 70°
Boom Swing - Right: 50°
Note: *Automatic swing brake, spring applied, hydraulic release.
Note: *Automatic swing brake, spring applied, hydraulic release.

Blade

Width: 76.8in
Width: 76.8in
Height: 12.8in
Dig Depth: 18.5in
Lift Height: 15.7in

Service Refill Capacities

Cooling System: 1.5gal
Engine Oil: 2.5gal
Hydraulic Tank: 11.2gal
Fuel Tank: 12.2gal
Hydraulic System: 17.2gal
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)

Travel System

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

Dimensions – Standard Stick

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

Dimensions – Long Stick

Dig Depth: 135in
Vertical Wall: 101in
Maximum Reach at Ground Level: 215in
Maximum Reach: 220in
Maximum Dig Height: 200in
Maximum Dump Clearance: 145in
Boom In Reach: 87in
Tail Swing: 38in
Maximum Blade Height: 16in
Maximum Blade Depth: 19in
Boom Height in Shipping Position: 70in
O/A Shipping Height: 98in
Swing Bearing Height: 22in
O/A Undercarriage Length: 87in
O/A Shipping Length: 194in
Boom Swing Right: 29in
Boom Swing Left: 26in
Track Belt/Shoe Width: 14in
O/A Track Width: 77in

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

Dimensions - Long Stick

Boom Height - Shipping Position: 70in
Boom In Reach: 87in
Boom Swing - Left: 26in
Boom Swing - Right: 29in
Dig Depth: 135in
Maximum Blade Depth: 19in
Maximum Blade Height: 16in
Maximum Dig Height: 200in
Maximum Dump Clearance: 145in
Maximum Reach: 220in
Maximum Reach - Ground Level: 215in
O/A Shipping Height: 98in
O/A Shipping Length: 194in
O/A Track Width: 77in
O/A Undercarriage Length: 87in
Swing Bearing - Height: 22in
Tail Swing: 38in
Track Belt/Shoe Width: 14in
Vertical Wall: 101in

Dimensions - Standard Stick

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

Operating Specifications

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

Undercarriage

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

Air Conditioning System

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.

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)

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

Blade Down - Front: 3462lb
Blade Up - Front: 1808lb
Blade Down - Side: 2007lb
Blade Up - Side: 1808lb

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

Blade Down - Front: 1896lb
Blade Up - Front: 948lb
Blade Down - Side: 1058lb
Blade Up - Side: 948lb

Equipment

Engine
- 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)
- Automatic engine idle
- Automatic engine shut-off
- Automatic two speed travel
- Diesel Particulate Filter (North America only)
- Diesel Oxidation Catalyst (North America only)
- Fuel and water separator
- Power on demand
Hydraulic System
- 1-way and 2-way (combined function)
- Accumulator
- Automatic swing parking brake
- Auxiliary hydraulic lines
- Adjustable auxiliary relief
- Auxiliary line quick disconnects
- Cat interlock system: hydraulic lockout
- Continuous auxiliary flow
- Ecology drain
- Hydraulic oil cooler
- High definition hydraulics
- Load sensing/flow sharing
Operator Environment
- 100% pilot control ergonomic joysticks
- Adjustable armrests
- COMPASS: complete, operation, maintenance, performance and security system
  - Multiple languages
- Cup holder
- Hydraulic neutral lockout bar
- Literature holder
- Pattern changer (optional in Europe)
- Site reference system: leveling
- Tool storage area
- Travel control pedals with hand levers
- Washable floor mat
Undercarriage
- Dozer blade with float function
- Track, rubber belt, 350 mm (14 in) width
- Tie down eyes on track frame
- Towing eye on base frame
Front Linkage
- 200 degree bucket rotation
- Certified lifting eye on bucket linkage (optional in Europe)
- Front shovel capable
- Thumb ready stick
Electrical
- 12 volt electrical system
- 60 ampere alternator
- 650 CCA maintenance free battery
- Fuse box
- Ignition key start/stop switch
- Slow blow fuse
- Warning horn
Lights And Mirrors
- Boom light with time delay capability
Safety And Security
- Anti-theft system (COMPASS)
- Caterpillar Corporate “One Key” System
- Door locks
- Lockable fuel cap
- Retractable seat belt
- Roll Over Protective Structure (ROPS) (ISO 12117-2)
- Tip Over Protective Structure (TOPS) (ISO 12117)
- Top guard – ISO 10262 (Level 1)
- Travel alarm (optional in Europe)
Technology
- Product Link^™

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

Cat Excavators:

304E2 CR Mini Hydraulic Excavator

Product Specs

Engine

Weights*

Hydraulic System

Swing System

Blade

Service Refill Capacities

Travel System

Dimensions – Standard Stick

Dimensions – Long Stick

Cab

Certification - Cab and Canopy

Dimensions - Long Stick

Dimensions - Standard Stick

Operating Specifications

Undercarriage

Air Conditioning System

Certification – Cab and Canopy

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

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

Equipment

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Product Specs

Engine

Weights*

Hydraulic System

Swing System

Blade

Service Refill Capacities

Travel System

Dimensions – Standard Stick

Dimensions – Long Stick

Cab

Certification - Cab and Canopy

Dimensions - Long Stick

Dimensions - Standard Stick

Operating Specifications

Undercarriage

Air Conditioning System

Certification – Cab and Canopy

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

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

Equipment

Request a Quote

Find a Boyd CAT Location or Rep Near You

Find a Boyd CAT
Location or Rep Near You