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Equipment Cat 304

Cat 304

Mini-Excavators

  • Sensitive hydraulics allow the shortest work cycles
  • Highest breakout and lifting forces
  • Unrivaled cabin comfort with the best possible overview
  • Unprecedented accessibility for maintenance and service
  • Stage V engine without particulate filter
  • Maximum material handling with the lowest diesel consumption
  • Choose either a canopy (not available in some regions) or a sealed and pressurized cab which can be equipped with air conditioning, adjustable wrist rests, and a suspension seat to help keep you working comfortably all day long.

EASY TO OPERATE
  • Controls are easy to use and the intuitive Next Generation LCD monitor provides easy to read machine information. An advanced touchscreen monitor can also be equipped as an upgrade option.

STICK STEER TRAVEL MODE
  • Moving around the job site is even easier with the Cat Stick Steer option. Easily switch from traditional travel controls with levers and pedals to joystick controls to move the machine and to operate the blade. The benefit of less effort and improved control is in your hands!

BIG PERFORMANCE IN A SMALL MACHINE
  • Strong lift and dig performance helps you get the job done faster. The reduced radius tail swing design provides exceptional stability and performance. With a maximum width of 1700 mm (67 in), the 304 can access those hard to get into areas. Dozer float allows for easy clean up. An angle blade is also an option for finished grading and easier backfilling applications.

SAFETY ON THE JOB SITE
  • Your safety is our top priority. The Cat mini excavator is designed to help keep you safe on the job. Courtesy work lights and a fluorescent retractable seat belt are just a couple of the safety features we’ve built into the machine.

SIMPLE SERVICE FOR LESS DOWNTIME
  • Maintenance is quick and easy on the Cat mini excavator. Routine check points are easy to access at ground level through the side doors.

LOWER OPERATING COSTS
  • Equipped with features such as auto idle, auto engine shutdown, and efficient hydraulics with a variable displacement pump, the Cat mini excavator was designed with reducing your operating costs in mind.

SUSTAINABILITY
  • The Cat® C1.7 engine meets U.S. EPA Tier 4 Final, EU Stage V, and Japan 2014 emission standards.
  • Cat diesel engines are required to use ULSD (ultra-low sulfur diesel fuel with 15 ppm of sulfur or less) or ULSD blended with the following lower-carbon intensity fuels up to: 20% biodiesel FAME (fatty acid methyl ester) * or 100% renewable diesel, HVO (hydrotreated vegetable oil) and GTL (gas-to-liquid) fuels. Refer to guidelines for successful application. Please consult your Cat dealer or “Caterpillar Machine Fluids Recommendations” (SEBU6250) for details.
  • Auto Idle helps reduce unnecessary fuel burn and greenhouse gas emissions by allowing the engine to automatically go into idle mode when the machine is not working.
  • Engine Idle Shutdown Timer reduces fuel burn, greenhouse gas emissions and unnecessary idle time by shutting down the machine after a pre-set idling period.
  • Cruise control helps you maintain a constant speed as you travel across your jobsite saving fuel and reducing greenhouse gas emissions.
  • The Cat® Seat Belt Reminder provides audible and visual warnings to remind operators to buckle up during machine operation. The easy-to-install system is compatible with all equipment brands to help ensure operator safety.
  • Extended maintenance intervals not only reduce downtime but decrease the amount of fluid and filters that are replaced over the life of the machine.
  • Remote Flash minimizes downtime and maintenance time while keeping your asset running with maximum efficiency. Alerts for machine updates are sent virtually from your Cat dealer and updates can be deployed without a dealer technician needing to be onsite.(if equipped)
  • Remote Troubleshoot decreases maintenance time and keeps your machine running with maximum efficiency by allowing your Cat dealer to virtually test the machine while working. Once a problem is identified, a technician can fix it the first time, saving time and money.(if equipped)
  • Cat Grade with advanced 2D and 3D technologies combine advanced guidance with optional automated machine control helping you reach grading targets while reducing fuel burn and greenhouse gas emissions by improving efficiency, job site productivity, and accuracy. (if equipped).

*Engines with no aftertreatment devices can use higher blends, up to 100% biodiesel. (for use of blends higher than 20% biodiesel, consult your Cat dealer)


Blade
Angle Blade Heightnull
Straight Blade Heightnull
Straight Blade Widthnull
Angle Blade Widthnull
Angle Blade - Right25 Degrees
Angle Blade - Left25 Degrees

Certification - Cab and Canopy
Roll Over Protective Structure (ROPS)ISO 12117-2:2008
Top GuardISO 10262:1998 (Level I)
Tip Over Protective Structure (TOPS)ISO 12117:1997

Dimensions - Long Stick
Dig Depthnull
Maximum Blade Depthnull
O/A Shipping Heightnull
Maximum Dump Clearancenull
Stick Lengthnull
Maximum Dig Heightnull
Maximum Reach - Ground Levelnull
Track Widthnull
Tail Swing with Counterweightnull
Swing Bearing - Heightnull
Boom Height - Shipping Positionnull
Boom Swing - Leftnull
Maximum Reachnull
Boom In Reachnull
Boom Swing - Rightnull
Track Belt/Shoe Widthnull
Vertical Wallnull
Maximum Blade Heightnull
Note*Overall Shipping Length depends on blade position during shipment.
Overall Shipping Length*null
Ground Clearancenull
O/A Undercarriage Lengthnull
Tail Swing without Counterweightnull

Dimensions - Standard Stick
Maximum Reach - Ground Levelnull
Vertical Wallnull
Note*Overall Shipping Length depends on blade position during shipment.
Tail Swing with Counterweightnull
Boom In Reachnull
Dig Depthnull
Maximum Dig Heightnull
Maximum Blade Heightnull
Swing Bearing - Heightnull
Boom Swing - Leftnull
Stick Lengthnull
O/A Undercarriage Lengthnull
Track Belt/Shoe Widthnull
Boom Height - Shipping Positionnull
Boom Swing - Rightnull
Maximum Dump Clearancenull
Ground Clearancenull
Maximum Reachnull
O/A Shipping Heightnull
Tail Swing without Counterweightnull
Maximum Blade Depthnull
Overall Shipping Length*null

Engine
Net Powernull
Engine ModelC1.7 Turbo
Gross Power - 2,400 rpm - SAE J1995:2014null
Borenull
EmissionsMeets U.S. EPA Tier 4 Final and EU Stage V emission standards.
Strokenull
Displacementnull
Net Power - 2,400 rpm - ISO 9249, 80/1269/EECnull
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.

Hydraulic System
Operating Pressure - Travelnull
Auxiliary Circuit - Secondary - Pressurenull
Digging Force - Stick - Longnull
Auxiliary Circuit - Secondary - Flownull
Pump Flow at 2,400 rpmnull
Operating Pressure - Swingnull
Auxiliary Circuit - Primary - Flownull
Auxiliary Circuit - Primary - Pressurenull
NoteFlow and pressure are not combinable. Under load, as flow rises pressure goes down.
TypeLoad Sensing Hydraulics with Variable Displacement Piston Pump
Digging Force - Stick - Standardnull
Digging Force - Bucketnull
Operating Pressure - Equipmentnull

Service Refill Capacities
Cooling Systemnull
Engine Oilnull
Hydraulic Systemnull
Fuel Tanknull
Hydraulic Tanknull

Sound
Average Exterior Sound Pressure (ISO 6395:2008)null
Operator Sound Pressure (ISO 6396:2008)null
NoteEuropean Union Directive “2000/14/EC”

Sustainability
Recyclability96%

Swing System
Boom Swing - Right50 Degrees
Machine Swing Speednull
Boom Swing - Left78 Degrees

Travel System
Ground Pressure - Minimum Weightnull
Maximum Traction Force - Low Speednull
Travel Speed - Lownull
Ground Pressure - Maximum Weightnull
Travel Speed - Highnull
Maximum Traction Force - High Speednull
Gradeability - Maximum30 degrees

Weight Increase from Minimum Configuration
Steel Tracksnull
Counterweightnull
Angle Bladenull
Long Sticknull

Weights
Operating Weightnull
Minimum Operating Weight with Canopy*null
Maximum Operating Weight with Canopy**null
Note (2)**Maximum Weight is based on steel tracks, operator, full fuel tank, long stick, straight blade, extra counterweight and no bucket.
Note (1)*Minimum Weight is based on rubber tracks, operator, full fuel tank, standard stick, straight blade, no bucket and no extra counterweight.
Maximum Operating Weight with Cab**null
Minimum Operating Weight with Cab*null

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