304
304 Mini Excavator
The 304 Mini Excavator delivers power and performance in a 4 ton size class to help you work in a wide range of applications.
DESCRIPTION
The Cat® 304 Mini Excavator delivers power and performance in a compact size to help you work in a wide range of applications.See the new Cat 304 and 305 CR Mini Excavators in action.
Learn about the features and benefits of the new Cat 304 and 305 CR Mini Excavators.
Easy to read monitor lets you adjust machine settings to your operating preference.
Learn about the the differences between the Next Generation Cat 304 and 305 CR Mini Excavators vs the E2 Series.
Learn about the Advanced Monitor available for the Next Generation Cat Mini Excavators.
Hear what our customers think about the Cat 304 Mini Excavator.
ALL DAY COMFORT
- 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).
- Standard Equipment
- Optional Equipment
- Specs
- Docs
Standard Equipment
- ENGINE
- 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
- 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
- OPERATOR ENVIRONMENT
- 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)
- UNDERCARRIAGE
- Rubber Belt (350 mm/13.8 in)
- Dozer Straight Blade
- Dozer Blade Float
- Tie Downs on Track Frame
- BOOM, STICK AND LINKAGES
- 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
- ELECTRICAL
- 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)
- GUARDING
- ROPS – ISO 12117-2:2008
- Top Guard ISO 10262:1998 Level I
- OTHER
- Eco Drain
Optional Equipment
- OPERATOR ENVIRONMENT
- 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
- UNDERCARRIAGE
- Steel Track (350 mm/13.8 in)
- Angle Blade
- BOOM, STICK AND LINKAGES
- 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)
- ELECTRICAL
- Cat Grade Advanced 2D
- Cat Grade 3D
- GUARDING
- Top Guard ISO 10262:1998 (Level II)
- Front Guard (Mesh) ISO 10262:1998 (Level I)
- Front Guard (Heavy Duty) ISO 10262:1998 Level (II)
- OTHER
- Bio Oil Capable
- Water Jacket Heater
- Counterweight (225 kg/496 lb)
Specs
Overview
Long Name:
304 Mini Excavator
Name:
304
Brand:
Caterpillar
Status:
Current
Engine
Gross Power - ISO 14396
48.4 hp / 36.1 kW
Net Power
45 hp / 33.6 kW
Engine Model
C1.7 Turbo
Net Power - 2,400 rpm - ISO 9249, 80/1269/EEC
45 hp / 33.6 kW
Bore
3.3 in / 84 mm
Stroke
3.9 in / 100 mm
Displacement
101 in³ / 1.662 l
Emissions
Meets U.S. EPA Tier 4 Final and EU Stage V emission standards.
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.
Weights
Operating Weight
9867 lb / 4475 kg
Minimum Operating Weight with Canopy*
8655 lb / 3925 kg
Maximum Operating Weight with Canopy**
9647 lb / 4375 kg
Minimum Operating Weight with Cab*
8875 lb / 4025 kg
Maximum Operating Weight with Cab**
9867 lb / 4475 kg
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.
Weight Increase from Minimum Configuration
Counterweight
496 lb / 225 kg
Long Stick
66 lb / 30 kg
Steel Tracks
430 lb / 195 kg
Angle Blade
243 lb / 110 kg
Travel System
Travel Speed - High
3.2 mile/h / 5.2 km/h
Travel Speed - Low
2.2 mile/h / 3.5 km/h
Maximum Traction Force - High Speed
4271 lbf / 19 kN
Maximum Traction Force - Low Speed
7329 lbf / 32.6 kN
Ground Pressure - Minimum Weight
4.2 psi / 28.7 kPa
Ground Pressure - Maximum Weight
4.9 psi / 33.8 kPa
Gradeability - Maximum
30 degrees
Service Refill Capacities
Cooling System
2.9 gal (US) / 11 l
Engine Oil
1.6 gal (US) / 6 l
Fuel Tank
17 gal (US) / 63 l
Hydraulic Tank
14 gal (US) / 52 l
Hydraulic System
17 gal (US) / 65 l
Hydraulic System
Type
Load Sensing Hydraulics with Variable Displacement Piston Pump
Pump Flow at 2,400 rpm
25 gpm / 96 L/min
Operating Pressure - Equipment
3553 psi / 245 bar
Operating Pressure - Travel
3553 psi / 245 bar
Operating Pressure - Swing
2611 psi / 180 bar
Auxiliary Circuit - Primary - Flow
21 gpm / 65 L/min
Auxiliary Circuit - Primary - Pressure
3553 psi / 245 bar
Auxiliary Circuit - Secondary - Flow
7 gpm / 28 L/min
Auxiliary Circuit - Secondary - Pressure
3553 psi / 245 bar
Digging Force - Stick - Standard
4721 lbf / 21 kN
Digging Force - Stick - Long
4316 lbf / 19.2 kN
Digging Force - Bucket
8588 lbf / 38.2 kN
Note
Flow and pressure are not combinable. Under load, as flow rises pressure goes down.
Swing System
Machine Swing Speed
9 r/min / 9 r/min
Boom Swing - Left
78 Degrees
Boom Swing - Right
50 Degrees
Blade
Straight Blade Width
66.9 in / 1700 mm
Straight Blade Height
14.2 in / 360 mm
Angle Blade Width
66.9 in / 1700 mm
Angle Blade Height
14.2 in / 360 mm
Angle Blade - Left
25 Degrees
Angle Blade - Right
25 Degrees
Certification - Cab and Canopy
Roll Over Protective Structure (ROPS)
ISO 12117-2:2008
Top Guard
ISO 10262:1998 (Level I)
Dimensions - Standard Stick
Dig Depth
126.4 in / 3210 mm
Vertical Wall
94.3 in / 2395 mm
Maximum Reach - Ground Level
204.7 in / 5200 mm
Maximum Reach
209.8 in / 5330 mm
Maximum Dig Height
198.4 in / 5040 mm
Maximum Dump Clearance
143.5 in / 3645 mm
Boom In Reach
88.8 in / 2255 mm
Tail Swing without Counterweight
47.4 in / 1205 mm
Tail Swing with Counterweight
51.2 in / 1300 mm
Maximum Blade Height
16.5 in / 420 mm
Maximum Blade Depth
18.7 in / 475 mm
Boom Height - Shipping Position
63.8 in / 1620 mm
O/A Shipping Height
100 in / 2540 mm
Swing Bearing - Height
21.9 in / 557 mm
O/A Undercarriage Length
87 in / 2210 mm
Overall Shipping Length*
194.9 in / 4950 mm
Boom Swing - Right
28.7 in / 730 mm
Boom Swing - Left
20.9 in / 530 mm
Track Belt/Shoe Width
13.8 in / 350 mm
Ground Clearance
12 in / 305 mm
Stick Length
54.9 in / 1395 mm
Note
*Overall Shipping Length depends on blade position during shipment.
Dimensions - Long Stick
Dig Depth
138.2 in / 3510 mm
Vertical Wall
99.8 in / 2535 mm
Maximum Reach - Ground Level
214.4 in / 5445 mm
Maximum Reach
219.3 in / 5570 mm
Maximum Dig Height
201.8 in / 5125 mm
Maximum Dump Clearance
147.2 in / 3740 mm
Boom In Reach
92.1 in / 2340 mm
Tail Swing without Counterweight
47.4 in / 1205 mm
Tail Swing with Counterweight
51.2 in / 1300 mm
Maximum Blade Height
16.5 in / 420 mm
Maximum Blade Depth
18.7 in / 475 mm
Boom Height - Shipping Position
75.2 in / 1910 mm
O/A Shipping Height
100 in / 2540 mm
Swing Bearing - Height
21.9 in / 557 mm
O/A Undercarriage Length
87 in / 2210 mm
Overall Shipping Length*
194.9 in / 4950 mm
Boom Swing - Right
28.7 in / 730 mm
Boom Swing - Left
20.9 in / 530 mm
Track Belt/Shoe Width
13.8 in / 350 mm
Track Width
66.9 in / 1700 mm
Ground Clearance
12 in / 305 mm
Stick Length
66.7 in / 1695 mm
Note
*Overall Shipping Length depends on blade position during shipment.
Air Conditioning System
Air Conditioning
The 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 (1.65 lb), 0.90 kg (1.98 lb) or 1.0 kg (2.20 lb) of refrigerant which has a CO2 equivalent of 1.430 metric tonnes (1.576 tons) for R134a and 0.001 tonnes (0.001 tons) for R1234yf (Europe).
Sound
Operator Sound Pressure (ISO 6396:2008)
76 dB(A) / 76 dB(A)
Average Exterior Sound Pressure (ISO 6395:2008)
97 dB(A) / 97 dB(A)
Note
European Union Directive “2000/14/EC”
Sustainability
Recyclability
96%
- 304 Small Product Brochure (AUZ, EU, NACD) (pdf)
- Cat Mini Hydraulic Excavators Product Line Brochure (North America) (pdf)
- Cat Mini Hydraulic Excavators Product Line Brochure (Europe) (pdf)
- Options And Accessories Kit Guide for Mini Hydraulic Excavators (pdf)
- Cat Attachments for Mini Excavators Brochure (pdf)
- Attachment Compatibility Guide for Mini Excavators (pdf)
SEE HOW 304 COMPARES AGAINST FREQUENTLY COMPARED PRODUCTS.
Mini Excavators
304
- Brand
- Caterpillar
- Status
- Current
- Net Power
- 45 hp / 33.6 kW
- Engine Model
- C1.7 Turbo
- Bore
- 3.3 in / 84 mm
- Stroke
- 3.9 in / 100 mm
- Displacement
- 101 in³ / 1.662 l
- Emissions
- Meets U.S. EPA Tier 4 Final and EU Stage V emission standards.
- Note
- European Union Directive “2000/14/EC”
- Operating Weight
- 9867 lb / 4475 kg
- Minimum Operating Weight with Canopy*
- 8655 lb / 3925 kg
- Maximum Operating Weight with Canopy**
- 9647 lb / 4375 kg
- Minimum Operating Weight with Cab*
- 8875 lb / 4025 kg
- Maximum Operating Weight with Cab**
- 9867 lb / 4475 kg
- 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.
- Counterweight
- 496 lb / 225 kg
- Long Stick
- 66 lb / 30 kg
- Angle Blade
- 243 lb / 110 kg
- Travel Speed - High
- 3.2 mile/h / 5.2 km/h
- Travel Speed - Low
- 2.2 mile/h / 3.5 km/h
- Maximum Traction Force - High Speed
- 4271 lbf / 19 kN
- Maximum Traction Force - Low Speed
- 7329 lbf / 32.6 kN
- Ground Pressure - Minimum Weight
- 4.2 psi / 28.7 kPa
- Ground Pressure - Maximum Weight
- 4.9 psi / 33.8 kPa
- Gradeability - Maximum
- 30 degrees
- Cooling System
- 2.9 gal (US) / 11 l
- Engine Oil
- 1.6 gal (US) / 6 l
- Fuel Tank
- 17 gal (US) / 63 l
- Hydraulic Tank
- 14 gal (US) / 52 l
- Hydraulic System
- 17 gal (US) / 65 l
- Type
- Load Sensing Hydraulics with Variable Displacement Piston Pump
- Pump Flow at 2,400 rpm
- 25 gpm / 96 L/min
- Operating Pressure - Equipment
- 3553 psi / 245 bar
- Operating Pressure - Travel
- 3553 psi / 245 bar
- Operating Pressure - Swing
- 2611 psi / 180 bar
- Auxiliary Circuit - Primary - Flow
- 21 gpm / 65 L/min
- Auxiliary Circuit - Primary - Pressure
- 3553 psi / 245 bar
- Auxiliary Circuit - Secondary - Flow
- 7 gpm / 28 L/min
- Auxiliary Circuit - Secondary - Pressure
- 3553 psi / 245 bar
- Digging Force - Stick - Standard
- 4721 lbf / 21 kN
- Digging Force - Stick - Long
- 4316 lbf / 19.2 kN
- Digging Force - Bucket
- 8588 lbf / 38.2 kN
- Machine Swing Speed
- 9 r/min / 9 r/min
- Boom Swing - Left
- 20.9 in / 530 mm
- Boom Swing - Right
- 28.7 in / 730 mm
- Roll Over Protective Structure (ROPS)
- ISO 12117-2:2008
- Top Guard
- ISO 10262:1998 (Level I)
- Dig Depth
- 138.2 in / 3510 mm
- Vertical Wall
- 99.8 in / 2535 mm
- Maximum Reach - Ground Level
- 214.4 in / 5445 mm
- Maximum Reach
- 219.3 in / 5570 mm
- Maximum Dig Height
- 201.8 in / 5125 mm
- Maximum Dump Clearance
- 147.2 in / 3740 mm
- Boom In Reach
- 92.1 in / 2340 mm
- Tail Swing without Counterweight
- 47.4 in / 1205 mm
- Maximum Blade Height
- 16.5 in / 420 mm
- Maximum Blade Depth
- 18.7 in / 475 mm
- Boom Height - Shipping Position
- 75.2 in / 1910 mm
- O/A Shipping Height
- 100 in / 2540 mm
- Swing Bearing - Height
- 21.9 in / 557 mm
- O/A Undercarriage Length
- 87 in / 2210 mm
- Overall Shipping Length*
- 194.9 in / 4950 mm
- Track Belt/Shoe Width
- 13.8 in / 350 mm
- Stick Length
- 66.7 in / 1695 mm
- Track Width
- 66.9 in / 1700 mm
- Air Conditioning
- The 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 (1.65 lb), 0.90 kg (1.98 lb) or 1.0 kg (2.20 lb) of refrigerant which has a CO2 equivalent of 1.430 metric tonnes (1.576 tons) for R134a and 0.001 tonnes (0.001 tons) for R1234yf (Europe).
- Operator Sound Pressure (ISO 6396:2008)
- 76 dB(A) / 76 dB(A)
- Average Exterior Sound Pressure (ISO 6395:2008)
- 97 dB(A) / 97 dB(A)
- Recyclability
- 96%
Selected Model
Mini Excavators
303.5 CR
- Brand
- Caterpillar
- Status
- Current
- Net Power
- 23.6 hp / 17.6 kW
- Engine Model
- C1.7
- Bore
- 3.3 in / 84 mm
- Stroke
- 3.9 in / 100 mm
- Displacement
- 104 in³ / 1.7 l
- Emissions
- Meets U.S. EPA Tier 4 Final and EU Stage V emission standards.
- Note
- European Union Directive ‚ "2000/14/EC"
- Operating Weight
- 9239 lb / 4190 kg
- Minimum Operating Weight with Canopy*
- 7673 lb / 3480 kg
- Maximum Operating Weight with Canopy**
- 8930 lb / 4050 kg
- Minimum Operating Weight with Cab*
- 7982 lb / 3620 kg
- Maximum Operating Weight with Cab**
- 9239 lb / 4190 kg
- Note (1)
- *Minimum Weight is based on fixed rubber tracks, operator, full fuel tank, standard stick, blade, no bucket and extra counterweight.
- Note (2)
- **Maximum Weight is based on steel tracks, operator, full fuel tank, long stick, blade, no bucket and extra counterweight.
- Counterweight
- 221 lb / 100 kg
- Long Stick
- 44 lb / 20 kg
- Angle Blade
- 353 lb / 160 kg
- Travel Speed - High
- 2.8 mile/h / 4.5 km/h
- Travel Speed - Low
- 1.6 mile/h / 2.6 km/h
- Maximum Traction Force - High Speed
- 3799 lbf / 16.9 kN
- Maximum Traction Force - Low Speed
- 6969 lbf / 31 kN
- Ground Pressure - Minimum Weight
- 4.3 psi / 29.6 kPa
- Ground Pressure - Maximum Weight
- 5.2 psi / 35.7 kPa
- Gradeability - Maximum
- 30 degrees
- Cooling System
- 1.8 gal (US) / 7 l
- Engine Oil
- 1.6 gal (US) / 6 l
- Fuel Tank
- 11.9 gal (US) / 45 l
- Hydraulic Tank
- 5.3 gal (US) / 20 l
- Hydraulic System
- 11.9 gal (US) / 45 l
- Type
- Load Sensing Hydraulics with Variable Displacement Piston Pump
- Pump Flow at 2,400 rpm
- 26 gpm / 100 L/min
- Operating Pressure - Equipment
- 3553 psi / 245 bar
- Operating Pressure - Travel
- 3553 psi / 245 bar
- Operating Pressure - Swing
- 2625 psi / 181 bar
- Auxiliary Circuit - Primary - Flow
- 18 gpm / 70 L/min
- Auxiliary Circuit - Primary - Pressure
- 3553 psi / 245 bar
- Auxiliary Circuit - Secondary - Flow
- 7 gpm / 25 L/min
- Auxiliary Circuit - Secondary - Pressure
- 3553 psi / 245 bar
- Digging Force - Stick - Standard
- 4249 lbf / 18.9 kN
- Digging Force - Stick - Long
- 3799 lbf / 16.9 kN
- Digging Force - Bucket
- 7419 lbf / 33 kN
- Machine Swing Speed
- 9 r/min / 9 r/min
- Boom Swing - Left
- 640 mm / 25.2 °
- Boom Swing - Right
- 34.3 ° / 870 mm
- Roll Over Protective Structure (ROPS)
- ISO 12117-2:2008
- Top Guard
- ISO 10262:1998 (Level I)
- Dig Depth
- 122.4 in / 3110 mm
- Vertical Wall
- 94.1 in / 2390 mm
- Maximum Reach - Ground Level
- 211.8 in / 5380 mm
- Maximum Reach
- 216.9 in / 5510 mm
- Maximum Dig Height
- 197.6 in / 5020 mm
- Maximum Dump Clearance
- 141.7 in / 3600 mm
- Boom In Reach
- 73.2 in / 1860 mm
- Tail Swing without Counterweight
- 35 in / 890 mm
- Maximum Blade Height
- 15.2 in / 385 mm
- Maximum Blade Depth
- 21.1 in / 535 mm
- Boom Height - Shipping Position
- 68.9 in / 1750 mm
- O/A Shipping Height
- 97.6 in / 2480 mm
- Swing Bearing - Height
- 22.2 in / 565 mm
- O/A Undercarriage Length
- 87.4 in / 2220 mm
- Overall Shipping Length*
- 190.9 in / 4850 mm
- Track Belt/Shoe Width
- 11.8 in / 300 mm
- Stick Length
- 61.4 in / 1560 mm
- Track Width
- 70.1 in / 1780 mm
- Air Conditioning
- The 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 (1.65 lb), 0.90 kg (1.98 lb) or 1.0 kg (2.20 lb) of refrigerant which has a CO2 equivalent of 1.430 metric tonnes (1.576 tons) for R134a and 0.001 tonnes (0.001 tons) for R1234yf (Europe).
- Operator Sound Pressure (ISO 6396:2008)
- 78 dB(A) / 78 dB(A)
- Average Exterior Sound Pressure (ISO 6395:2008)
- 94 dB(A) / 94 dB(A)
- Recyclability
- 95%
Mini Excavators
305 CR – Tier 4 / Stage V
- Brand
- Caterpillar
- Status
- Current
- Net Power
- 45 hp / 33.6 kW
- Engine Model
- C1.7 Turbo
- Bore
- 3.3 in / 84 mm
- Stroke
- 3.9 in / 100 mm
- Displacement
- 101 in³ / 1.662 l
- Emissions
- The Cat® C1.7 engine meets U.S. EPA Tier 4 Final and EU Stage V emission standards.
- Note
- *Overall Shipping Length depends on blade position during shipment.
- Operating Weight
- 12688 lb / 5754 kg
- Minimum Operating Weight with Canopy*
- 11016 lb / 4996 kg
- Maximum Operating Weight with Canopy**
- 12469 lb / 5655 kg
- Minimum Operating Weight with Cab*
- 11234 lb / 5095 kg
- Maximum Operating Weight with Cab**
- 12688 lb / 5754 kg
- 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)
- Net power advertised is the power available at the flywheel when the engine is at the rated speed of 2400 rpm and the engine is installed with the factory configured fan, air intake system, exhaust system and alternator with a minimum alternator load.
- Counterweight
- 534 lb / 242 kg
- Long Stick
- 75 lb / 34 kg
- Angle Blade
- 225 lb / 102 kg
- Travel Speed - High
- 3.1 mile/h / 5 km/h
- Travel Speed - Low
- 1.7 mile/h / 2.8 km/h
- Maximum Traction Force - High Speed
- 5553 lbf / 24.7 kN
- Maximum Traction Force - Low Speed
- 11353 lbf / 50.5 kN
- Ground Pressure - Minimum Weight
- 4 psi / 27.3 kPa
- Ground Pressure - Maximum Weight
- 4.7 psi / 32.2 kPa
- Gradeability - Maximum
- 30 degrees
- Cooling System
- 2.9 gal (US) / 11 l
- Engine Oil
- 1.6 gal (US) / 6 l
- Fuel Tank
- 17 gal (US) / 63 l
- Hydraulic Tank
- 16 gal (US) / 60 l
- Hydraulic System
- 20 gal (US) / 75 l
- Type
- Load Sensing Hydraulics with Variable Displacement Piston Pump
- Pump Flow at 2,400 rpm
- 35 gpm / 133 L/min
- Operating Pressure - Equipment
- 3843 psi / 265 bar
- Operating Pressure - Travel
- 3843 psi / 265 bar
- Operating Pressure - Swing
- 2901 psi / 200 bar
- Auxiliary Circuit - Primary - Flow
- 21 gpm / 80 L/min
- Auxiliary Circuit - Primary - Pressure
- 3843 psi / 265 bar
- Auxiliary Circuit - Secondary - Flow
- 7 gpm / 28 L/min
- Auxiliary Circuit - Secondary - Pressure
- 3843 psi / 265 bar
- Digging Force - Stick - Standard
- 6362 lbf / 28.3 kN
- Digging Force - Stick - Long
- 5665 lbf / 25.2 kN
- Digging Force - Bucket
- 11061 lbf / 49.2 kN
- Machine Swing Speed
- 9 r/min / 9 r/min
- Boom Swing - Left
- 24.2 ° / 615 mm
- Boom Swing - Right
- 50 Degrees
- Roll Over Protective Structure (ROPS)
- ISO 12117-2:2008
- Top Guard
- ISO 10262:1998 Level I
- Dig Depth
- 134.6 in / 3420 mm
- Vertical Wall
- 91.9 in / 2335 mm
- Maximum Reach - Ground Level
- 229.7 in / 5835 mm
- Maximum Reach
- 235.8 in / 5990 mm
- Maximum Dig Height
- 210.8 in / 5355 mm
- Maximum Dump Clearance
- 145.7 in / 3700 mm
- Boom In Reach
- 101.2 in / 2570 mm
- Tail Swing without Counterweight
- 43.1 in / 1095 mm
- Maximum Blade Height
- 15.2 in / 385 mm
- Maximum Blade Depth
- 23.4 in / 595 mm
- Boom Height - Shipping Position
- 74.6 in / 1895 mm
- O/A Shipping Height
- 100.4 in / 2550 mm
- Swing Bearing - Height
- 24.4 in / 619 mm
- O/A Undercarriage Length
- 101.6 in / 2580 mm
- Overall Shipping Length*
- 210.2 in / 5340 mm
- Track Belt/Shoe Width
- 15.7 in / 400 mm
- Stick Length
- 53.2 in / 1351 mm
- Track Width
- 78 in / 1980 mm
- Air Conditioning
- The 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 (1.65 lb), 0.90 kg (1.98 lb) or 1.0 kg (2.20 lb) of refrigerant which has a CO2 equivalent of 1.430 metric tonnes (1.576 tons) for R134a and 0.001 tonnes (0.001 tons) for R1234yf (Europe).
- Operator Sound Pressure (ISO 6396:2008)
- 76 dB(A) / 76 dB(A)
- Average Exterior Sound Pressure (ISO 6395:2008)
- 97 dB(A) / 97 dB(A)
- Recyclability
- 96%