304 Mini Excavator
Introducing the Next Generation Cat 304 and 305 CR Mini Excavators
Overview of the Next Generation Cat 304 and 305 CR Mini Excavators
Standard Monitor on the Next Generation Cat Mini Excavators
Comparing the Next Generation Cat 304 and 305 CR Mini Excavators to the E2 Series
Advanced Monitor on the Next Generation Cat Mini Excavators
Cat 304 Mini Excavator Customer Story - Hilcon LLC (North Carolina, United States)Contact Us For Price
SPECS SUMMARY
| Net Power | 45 HP (33.6 kW) |
| Operating Weight | 9867 lb (4475 kg) |
| Dig Depth | 138.2 in (3510 mm) |
| Engine Model | C1.7 Turbo |
Specifications
| Net Power | 45 HP (33.6 kW) |
| Operating Weight | 9867 lb (4475 kg) |
| Dig Depth | 138.2 in (3510 mm) |
| Engine Model | C1.7 Turbo |
| Operator Sound Pressure (ISO 6396:2008) | 76 dB(A) (76 dB(A)) |
| Boom Swing - Left | 20.9 in (530 mm) |
| Tip Over Protective Structure (TOPS) | ISO 12117:1997 |
| Maximum Reach | 209.8 in (5330 mm) |
| Ground Clearance | 12 in (305 mm) |
| Maximum Dump Clearance | 143.5 in (3645 mm) |
| Boom Swing - Right | 28.7 in (730 mm) |
| Boom Height - Shipping Position | 63.8 in (1620 mm) |
| Track Belt/Shoe Width | 13.8 in (350 mm) |
| O/A Undercarriage Length | 87 in (2210 mm) |
| Stick Length | 54.9 in (1395 mm) |
| Swing Bearing - Height | 21.9 in (557 mm) |
| Note | European Union Directive “2000/14/EC” |
| Maximum Blade Height | 16.5 in (420 mm) |
| O/A Shipping Height | 100 in (2540 mm) |
| Dig Depth | 126.4 in (3210 mm) |
| Boom In Reach | 88.8 in (2255 mm) |
| Tail Swing with Counterweight | 51.2 in (1300 mm) |
| Average Exterior Sound Pressure (ISO 6395:2008) | 97 dB(A) (97 dB(A)) |
| Note | *Overall Shipping Length depends on blade position during shipment. |
| Vertical Wall | 94.3 in (2395 mm) |
| Maximum Reach - Ground Level | 204.7 in (5200 mm) |
| Maximum Dig Height | 198.4 in (5040 mm) |
| Overall Shipping Length* | 194.9 in (4950 mm) |
| Tail Swing without Counterweight | 47.4 in (1205 mm) |
| Maximum Reach | 219.3 in (5570 mm) |
| Tail Swing without Counterweight | 47.4 in (1205 mm) |
| O/A Undercarriage Length | 87 in (2210 mm) |
| Ground Clearance | 12 in (305 mm) |
| Overall Shipping Length* | 194.9 in (4950 mm) |
| Note | *Overall Shipping Length depends on blade position during shipment. |
| Maximum Blade Height | 16.5 in (420 mm) |
| Vertical Wall | 99.8 in (2535 mm) |
| Track Belt/Shoe Width | 13.8 in (350 mm) |
| Boom Swing - Right | 28.7 in (730 mm) |
| Boom In Reach | 92.1 in (2340 mm) |
| Boom Swing - Left | 20.9 in (530 mm) |
| Maximum Blade Depth | 18.7 in (475 mm) |
| Boom Height - Shipping Position | 75.2 in (1910 mm) |
| Swing Bearing - Height | 21.9 in (557 mm) |
| Tail Swing with Counterweight | 51.2 in (1300 mm) |
| Track Width | 66.9 in (1700 mm) |
| Maximum Reach - Ground Level | 214.4 in (5445 mm) |
| Maximum Dig Height | 201.8 in (5125 mm) |
| Stick Length | 66.7 in (1695 mm) |
| Maximum Dump Clearance | 147.2 in (3740 mm) |
| O/A Shipping Height | 100 in (2540 mm) |
| Maximum Blade Depth | 18.7 in (475 mm) |
| Top Guard | ISO 10262:1998 (Level I) |
| Angle Blade - Left | 25 Degrees |
| Roll Over Protective Structure (ROPS) | ISO 12117-2:2008 |
| Maximum Operating Weight with Cab** | 9867 lb (4475 kg) |
| Travel Speed - High | 3.2 mile/h (5.2 km/h) |
| Ground Pressure - Maximum Weight | 4.9 psi (33.8 kPa) |
| Travel Speed - Low | 2.2 mile/h (3.5 km/h) |
| Maximum Traction Force - Low Speed | 7329 lbf (32.6 kN) |
| Ground Pressure - Minimum Weight | 4.2 psi (28.7 kPa) |
| Long Stick | 66 lb (30 kg) |
| Angle Blade | 243 lb (110 kg) |
| Counterweight | 496 lb (225 kg) |
| Steel Tracks | 430 lb (195 kg) |
| Minimum Operating Weight with Cab* | 8875 lb (4025 kg) |
| Note (1) | *Minimum Weight is based on rubber tracks, operator, full fuel tank, standard stick, straight blade, no bucket and no extra counterweight. |
| Gradeability - Maximum | 30 degrees |
| Note (2) | **Maximum Weight is based on steel tracks, operator, full fuel tank, long stick, straight blade, extra counterweight and no bucket. |
| Maximum Operating Weight with Canopy** | 9647 lb (4375 kg) |
| Minimum Operating Weight with Canopy* | 8655 lb (3925 kg) |
| Note | Net 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. |
| Net Power - 2,400 rpm - ISO 9249, 80/1269/EEC | 45 HP (33.6 kW) |
| Displacement | 101 in³ (1.662 l) |
| Stroke | 3.9 in (100 mm) |
| Emissions | Meets U.S. EPA Tier 4 Final and EU Stage V emission standards. |
| Bore | 3.3 in (84 mm) |
| Gross Power - 2,400 rpm - SAE J1995:2014 | 48.4 HP (36.1 kW) |
| Maximum Traction Force - High Speed | 4271 lbf (19 kN) |
| Cooling System | 2.9 l (11 l) |
| Angle Blade - Right | 25 Degrees |
| Type | Load Sensing Hydraulics with Variable Displacement Piston Pump |
| Angle Blade Width | 66.9 in (1700 mm) |
| Straight Blade Width | 66.9 in (1700 mm) |
| Straight Blade Height | 14.2 in (360 mm) |
| Angle Blade Height | 14.2 in (360 mm) |
| Boom Swing - Left | 78 Degrees |
| Machine Swing Speed | 9 r/min (9 r/min) |
| Boom Swing - Right | 50 Degrees |
| Operating Pressure - Equipment | 3553 psi (245 bar) |
| Digging Force - Bucket | 8588 lbf (38.2 kN) |
| Digging Force - Stick - Standard | 4721 lbf (21 kN) |
| Note | Flow and pressure are not combinable. Under load, as flow rises pressure goes down. |
| Engine Oil | 1.6 gal (US) (6 l) |
| Auxiliary Circuit - Primary - Pressure | 3553 psi (245 bar) |
| Auxiliary Circuit - Primary - Flow | 21 gal/min (65 l/min) |
| Operating Pressure - Swing | 2611 psi (180 bar) |
| Pump Flow at 2,400 rpm | 25 gal/min (96 l/min) |
| Auxiliary Circuit - Secondary - Flow | 7 gal/min (28 l/min) |
| Digging Force - Stick - Long | 4316 lbf (19.2 kN) |
| Auxiliary Circuit - Secondary - Pressure | 3553 psi (245 bar) |
| Operating Pressure - Travel | 3553 psi (245 bar) |
| Hydraulic Tank | 14 gal (US) (52 l) |
| Fuel Tank | 17 gal (US) (63 l) |
| Hydraulic System | 17 gal (US) (65 l) |
| Recyclability | 96% |
Benefits and Features
- 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.
- 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.
- 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!
- 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.
- 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.
- Maintenance is quick and easy on the Cat mini excavator. Routine check points are easy to access at ground level through the side doors.
- 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.
- 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).
Standard Equipment
- 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
- Smart Tech Electronic Pump
- Accumulator
- Automatic Swing Brake
- Auxiliary Hydraulic Lines
- One and Two Way Auxiliary Flow
- Continuous Auxiliary Flow
- Auxiliary Line Quick Disconnects
- Canopy or Cab (Canopy not available in some regions)
- Top Guard ISO 10262:1998 Level I
- ROPS – ISO 12117-2:2008
- TOPS – ISO 12117:1997
- 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)
- Rubber Belt (350 mm/13.8 in)
- Dozer Straight Blade
- Dozer Blade Float
- Tie Downs on Track Frame
- 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
- 12 Volt Battery
- Software (machine and monitor)
- Maintenance Free Battery
- Battery Disconnect
- 12 Volt Power Socket
- Travel Alarm (optional in some regions)
- Counterweight (225 kg/496 lb)
Optional Equipment
- 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
- LED Front Lights
- LED Front and Rear Lights
- LED Boom Light
- 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
- Steel Track (350 mm/13.8 in)
- Steel Track with Rubber Pads
- Angle Blade
- 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
- Stick Lowering Check Valve
- Hydraulic Quick Coupler Lines
- Product Link™ PL243 (regulations apply)
- Product Link PLE643 (regulations apply)
- Polycarbonate Half Height Front Guard (Canopy only)
- Polycarbonate Front Guard (ISO 10262:1998 Level I and EN356 P5A)
- Heavy Duty Front Guard ISO 10262:1998 Level II
- Heavy Duty Top Guard 10262:1998 Level II (Cab only)
- Bio Oil Capable
- Eco Drain
- Water Jacket Heater