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Mini Excavators 304

An extensive line of Cat® mini hydraulic excavators offers the performance to dig in and be productive on every job.
Mini Excavators

Mini Excavators 304

An extensive line of Cat® mini hydraulic excavators offers the performance to dig in and be productive on every job.
Units: USMetric
Angle Blade Height 14.2 in 360 mm
Straight Blade Height 14.2 in 360 mm
Straight Blade Width 66.9 in 1700 mm
Angle Blade Width 66.9 in 1700 mm
Angle Blade - Right 25 Degrees
Angle Blade - Left 25 Degrees
Units: USMetric
Roll Over Protective Structure (ROPS) ISO 12117-2:2008
Top Guard ISO 10262:1998 (Level I)
Tip Over Protective Structure (TOPS) ISO 12117:1997
Units: USMetric
Dig Depth 138.2 in 3510 mm
Maximum Blade Depth 18.7 in 475 mm
O/A Shipping Height 100 in 2540 mm
Maximum Dump Clearance 147.2 in 3740 mm
Stick Length 66.7 in 1695 mm
Maximum Dig Height 201.8 in 5125 mm
Maximum Reach - Ground Level 214.4 in 5445 mm
Track Width 66.9 in 1700 mm
Tail Swing with Counterweight 51.2 in 1300 mm
Swing Bearing - Height 21.9 in 557 mm
Boom Height - Shipping Position 75.2 in 1910 mm
Boom Swing - Left 20.9 in 530 mm
Maximum Reach 219.3 in 5570 mm
Boom In Reach 92.1 in 2340 mm
Boom Swing - Right 28.7 in 730 mm
Track Belt/Shoe Width 13.8 in 350 mm
Vertical Wall 99.8 in 2535 mm
Maximum Blade Height 16.5 in 420 mm
Note *Overall Shipping Length depends on blade position during shipment.
Overall Shipping Length* 194.9 in 4950 mm
Ground Clearance 12 in 305 mm
O/A Undercarriage Length 87 in 2210 mm
Tail Swing without Counterweight 47.4 in 1205 mm
Units: USMetric
Maximum Reach - Ground Level 204.7 in 5200 mm
Vertical Wall 94.3 in 2395 mm
Note *Overall Shipping Length depends on blade position during shipment.
Tail Swing with Counterweight 51.2 in 1300 mm
Boom In Reach 88.8 in 2255 mm
Dig Depth 126.4 in 3210 mm
Maximum Dig Height 198.4 in 5040 mm
Maximum Blade Height 16.5 in 420 mm
Swing Bearing - Height 21.9 in 557 mm
Boom Swing - Left 20.9 in 530 mm
Stick Length 54.9 in 1395 mm
O/A Undercarriage Length 87 in 2210 mm
Track Belt/Shoe Width 13.8 in 350 mm
Boom Height - Shipping Position 63.8 in 1620 mm
Boom Swing - Right 28.7 in 730 mm
Maximum Dump Clearance 143.5 in 3645 mm
Ground Clearance 12 in 305 mm
Maximum Reach 209.8 in 5330 mm
O/A Shipping Height 100 in 2540 mm
Tail Swing without Counterweight 47.4 in 1205 mm
Maximum Blade Depth 18.7 in 475 mm
Overall Shipping Length* 194.9 in 4950 mm
Units: USMetric
Net Power 45 HP 33.6 kW
Engine Model C1.7 Turbo
Gross Power - 2,400 rpm - SAE J1995:2014 48.4 HP 36.1 kW
Bore 3.3 in 84 mm
Emissions Meets U.S. EPA Tier 4 Final and EU Stage V emission standards.
Stroke 3.9 in 100 mm
Displacement 101 in³ 1.662 l
Net Power - 2,400 rpm - ISO 9249, 80/1269/EEC 45 HP 33.6 kW
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.
Units: USMetric
Operating Pressure - Travel 3553 psi 245 bar
Auxiliary Circuit - Secondary - Pressure 3553 psi 245 bar
Digging Force - Stick - Long 4316 lbf 19.2 kN
Auxiliary Circuit - Secondary - Flow 7 gal/min 28 l/min
Pump Flow at 2,400 rpm 25 gal/min 96 l/min
Operating Pressure - Swing 2611 psi 180 bar
Auxiliary Circuit - Primary - Flow 21 gal/min 65 l/min
Auxiliary Circuit - Primary - Pressure 3553 psi 245 bar
Note Flow and pressure are not combinable. Under load, as flow rises pressure goes down.
Type Load Sensing Hydraulics with Variable Displacement Piston Pump
Digging Force - Stick - Standard 4721 lbf 21 kN
Digging Force - Bucket 8588 lbf 38.2 kN
Operating Pressure - Equipment 3553 psi 245 bar
Units: USMetric
Cooling System 2.9 l 11 l
Engine Oil 1.6 gal (US) 6 l
Hydraulic System 17 gal (US) 65 l
Fuel Tank 17 gal (US) 63 l
Hydraulic Tank 14 gal (US) 52 l
Units: USMetric
Average Exterior Sound Pressure (ISO 6395:2008) 97 dB(A) 97 dB(A)
Operator Sound Pressure (ISO 6396:2008) 76 dB(A) 76 dB(A)
Note European Union Directive “2000/14/EC”
Units: USMetric
Recyclability 96%
Units: USMetric
Boom Swing - Right 50 Degrees
Machine Swing Speed 9 r/min 9 r/min
Boom Swing - Left 78 Degrees
Units: USMetric
Ground Pressure - Minimum Weight 4.2 psi 28.7 kPa
Maximum Traction Force - Low Speed 7329 lbf 32.6 kN
Travel Speed - Low 2.2 mile/h 3.5 km/h
Ground Pressure - Maximum Weight 4.9 psi 33.8 kPa
Travel Speed - High 3.2 mile/h 5.2 km/h
Maximum Traction Force - High Speed 4271 lbf 19 kN
Gradeability - Maximum 30 degrees
Units: USMetric
Steel Tracks 430 lb 195 kg
Counterweight 496 lb 225 kg
Angle Blade 243 lb 110 kg
Long Stick 66 lb 30 kg
Units: USMetric
Operating Weight 9867 lb 4475 kg
Minimum Operating Weight with Canopy* 8655 lb 3925 kg
Maximum Operating Weight with Canopy** 9647 lb 4375 kg
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** 9867 lb 4475 kg
Minimum Operating Weight with Cab* 8875 lb 4025 kg
ENGINE
Cat® C1.7 Turbo Engine (U.S. EPA Tier 4 Final/EU Stage V)
HYDRAULICS
Smart Tech Electronic Pump
OPERATOR ENVIRONMENT
Canopy or Cab (Canopy not available in some regions)
UNDERCARRIAGE
Rubber Belt (350 mm/13.8 in)
BOOM, STICK AND LINKAGES
One Piece Boom (2500 mm/98.4 in)
ELECTRICAL
12 Volt Battery
OTHER
Counterweight (225 kg/496 lb)

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