304 Mini Excavator

304 Mini Excavator

The Cat® 304 Mini Excavator delivers power and performance in a compact size to help you work in a wide range of applications.

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Net Power45hp

Engine ModelC1.7 Turbo

Net Power - 2,400 rpm - ISO 9249, 80/1269/EEC45hp

Gross Power - ISO 1439648.4hp

Bore3.3in

Stroke3.9in

Displacement101in³

EmissionsMeets U.S. EPA Tier 4 Final and EU Stage V emission standards.

NoteNet power advertised is the power available at the flywheel when the engine is at rated speed and rated power when the engine is installed with the factory configured fan, air intake system, exhaust system, and alternator with a minimum alternator load.

Operating Weight9867lb

Minimum Operating Weight with Canopy*8655lb

Maximum Operating Weight with Canopy**9647lb

Minimum Operating Weight with Cab*8875lb

Maximum Operating Weight with Cab**9867lb

Note (1)*Minimum Weight is based on rubber tracks, operator, full fuel tank, standard stick, straight blade, no bucket and no extra counterweight.

Note (2)**Maximum Weight is based on steel tracks, operator, full fuel tank, long stick, straight blade, extra counterweight and no bucket.

Dig Depth138.2in

Vertical Wall99.8in

Maximum Reach - Ground Level214.4in

Maximum Reach219.3in

Maximum Dig Height201.8in

Maximum Dump Clearance147.2in

Boom In Reach92.1in

Tail Swing without Counterweight47.4in

Tail Swing with Counterweight51.2in

Maximum Blade Height16.5in

Maximum Blade Depth18.7in

Boom Height - Shipping Position75.2in

O/A Shipping Height100in

Swing Bearing - Height21.9in

O/A Undercarriage Length87in

Overall Shipping Length*194.9in

Boom Swing - Right28.7in

Boom Swing - Left20.9in

Track Belt/Shoe Width13.8in

Track Width66.9in

Ground Clearance12in

Stick Length66.7in

Note*Overall Shipping Length depends on blade position during shipment.

Counterweight496lb

Long Stick66lb

Steel Tracks430lb

Angle Blade243lb

Dig Depth126.4in

Vertical Wall94.3in

Maximum Reach - Ground Level204.7in

Maximum Reach209.8in

Maximum Dig Height198.4in

Maximum Dump Clearance143.5in

Boom In Reach88.8in

Tail Swing without Counterweight47.4in

Tail Swing with Counterweight51.2in

Maximum Blade Height16.5in

Maximum Blade Depth18.7in

Boom Height - Shipping Position63.8in

O/A Shipping Height100in

Swing Bearing - Height21.9in

O/A Undercarriage Length87in

Overall Shipping Length*194.9in

Boom Swing - Right28.7in

Boom Swing - Left20.9in

Track Belt/Shoe Width13.8in

Ground Clearance12in

Stick Length54.9in

Note*Overall Shipping Length depends on blade position during shipment.

Air ConditioningThe air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a or R1234yf (Europe) (Global Warming Potential = 1430). See label or instruction manual for gas refrigerant identification. The system contains 0.75 kg (1

Travel Speed - High3.2mile/h

Travel Speed - Low2.2mile/h

Maximum Traction Force - High Speed4271lbf

Maximum Traction Force - Low Speed7329lbf

Ground Pressure - Minimum Weight4.2psi

Ground Pressure - Maximum Weight4.9psi

Gradeability - Maximum30 degrees

Cooling System2.9gal (US)

Engine Oil1.6gal (US)

Fuel Tank17gal (US)

Hydraulic Tank14gal (US)

Hydraulic System17gal (US)

TypeLoad Sensing Hydraulics with Variable Displacement Piston Pump

Pump Flow at 2,400 rpm25gpm

Operating Pressure - Equipment3553psi

Operating Pressure - Travel3553psi

Operating Pressure - Swing2611psi

Auxiliary Circuit - Primary - Flow21gpm

Auxiliary Circuit - Primary - Pressure3553psi

Auxiliary Circuit - Secondary - Flow7gpm

Auxiliary Circuit - Secondary - Pressure3553psi

Digging Force - Stick - Standard4721lbf

Digging Force - Stick - Long4316lbf

Digging Force - Bucket8588lbf

NoteFlow and pressure are not combinable. Under load, as flow rises pressure goes down.

Machine Swing Speed9r/min

Boom Swing - Left78 Degrees

Boom Swing - Right50 Degrees

Straight Blade Width66.9in

Straight Blade Height14.2in

Angle Blade Width66.9in

Angle Blade Height14.2in

Angle Blade - Left25 Degrees

Angle Blade - Right25 Degrees

Roll Over Protective Structure (ROPS)ISO 12117-2:2008

Top GuardISO 10262:1998 (Level I)

Operator Sound Pressure (ISO 6396:2008)76dB(A)

Average Exterior Sound Pressure (ISO 6395:2008)97dB(A)

NoteEuropean Union Directive “2000/14/EC”

Recyclability96%

Standard

Cat® C1.7 Turbo Engine (U.S. EPA Tier 4 Final/EU Stage V)

Automatic Engine Idle

Automatic Engine Shutdown

Automatic Two Speed Travel

Fuel Water Separator

Power on Demand (not available in all regions)

Variable Displacement Piston Pump

Load Sensing/Flow Sharing Hydraulics

Standard

Smart Tech Electronic Pump

Accumulator

Automatic Swing Brake

Auxiliary Hydraulic Lines

One and Two Way Auxiliary Flow

Continuous Auxiliary Flow

Auxiliary Line Quick Disconnects

Standard

Canopy or Cab (Canopy not available in some regions)

Stick Steer Mode

Travel Cruise Control

Control Pattern Changer (optional in some regions)

Adjustable Wrist Rests

Washable Floor Mat

Travel Pedals and Hand Levers

Machine Security – Standard Key with Pass Code

Fabric Suspension Seat (Cab only)

Vinyl Suspension Seat (Canopy only)

Hydraulic Lockout – All Controls

Retractable High Visibility Seat Belt (75 mm/3 in)

Coat Hook

Cup Holder

Storage Pocket

Skylight

Mounting Bosses for Front

Signaling/Warning Horn

Interior Light (Cab only)

Boom Light, Halogen (not available in all regions)

Utility Space for Mobile Phone

Next Generation Color LCD Monitor (IP66)
– Fuel Level and Coolant Temperature Gauges
– Maintenance and Machine Monitoring
– Performance and Machine Adjustments
– Numeric Security Code
– Multiple Languages
– Hour Meter with Wake Up Switch
– Jog Dial (cab only)

Optional

Cab with Air Conditioning

Cab with Heater

No Travel Pedals and Hand Levers (optional in some regions)

Machine Security – Push to Start with Key Fob/Pass Code

Seat Belt Reminder System

LED Front and Rear Lights

Mirrors, Left, Right and Rear

Camera

Radio – Bluetooth®, Auxiliary, Microphone, USB (charging only) (Cab only)

Next Generation Advanced Monitor
– Touch Screen
– Site Reference System
– High Definition Camera Capable (IP68 and IP69K)
– Numeric Security Code

Standard

Rubber Belt (350 mm/13.8 in)

Dozer Straight Blade

Dozer Blade Float

Tie Downs on Track Frame

Optional

Steel Track (350 mm/13.8 in)

Angle Blade

Standard

One Piece Boom (2500 mm/98.4 in)

Standard Stick (1395 mm/54.9 in)

Front Shovel Capable – Pin-On

Thumb Ready

Certified Lifting Eye

Hydraulic Quick Coupler Lines

Optional

Long Stick (1695 mm/66.7 in)

Front Shovel Capable – Dual Lock Manual Coupler

Front Shovel Capable – Hydraulic Coupler

Attachments including Couplers, Thumbs, Buckets, Augers and Hammers

2nd Auxiliary Hydraulic Lines

Bucket Divert Lines

Boom Lowering Check Valve (Europe Standard)

Stick Lowering Check Valve (Europe Standard)

Standard

12 Volt Battery

Software (machine and monitor)

Maintenance Free Battery

Lock Out/Tag Out Battery Disconnect

12 Volt Power Socket

Product Link Elite

Travel Alarm (optional in some regions)

Optional

Cat Grade Advanced 2D

Cat Grade 3D

Standard

ROPS – ISO 12117-2:2008

Top Guard ISO 10262:1998 Level I

Optional

Top Guard ISO 10262:1998 (Level II)

Front Guard (Mesh) ISO 10262:1998 (Level I)

Front Guard (Heavy Duty) ISO 10262:1998 Level (II)

Standard

Eco Drain

Optional

Bio Oil Capable

Water Jacket Heater

Counterweight (225 kg/496 lb)

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