304 Mini Excavator

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Product Description

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

Specifications
Us
Metric
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%
Standard/Optional

Standard Equipment

ENGINE
HYDRAULICS
OPERATOR ENVIRONMENT
UNDERCARRIAGE
BOOM, STICK AND LINKAGES
ELECTRICAL
GUARDING
OTHER

Optional Equipment

OPERATOR ENVIRONMENT
UNDERCARRIAGE
BOOM, STICK AND LINKAGES
ELECTRICAL
GUARDING
OTHER

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