304 Mini Excavator
The Cat® 304 Mini Excavator delivers power and performance in a compact size to help you work in a wide range of applications.
Specifications
Equipment
Product Brochures
Attachments
Units:
Engine
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.
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
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
Weight Increase from Minimum Configuration
Steel Tracks
430 lb
195 kg
Counterweight
496 lb
225 kg
Angle Blade
243 lb
110 kg
Long Stick
66 lb
30 kg
Travel System
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
Service Refill Capacities
Cooling System
2.9 gal (US)
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
Hydraulic System
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
Swing System
Boom Swing - Right
50 Degrees
Machine Swing Speed
9 r/min
9 r/min
Boom Swing - Left
78 Degrees
Blade
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
Certification - Cab and Canopy
Roll Over Protective Structure (ROPS)
ISO 12117-2:2008
Top Guard
ISO 10262:1998 (Level I)
Tip Over Protective Structure (TOPS)
ISO 12117:1997
Sound
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”
Dimensions - Standard Stick
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
Dimensions - Long Stick
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
Sustainability
Recyclability
96%
Standard Equipment
ENGINE
HYDRAULICS
OPERATOR ENVIRONMENT
UNDERCARRIAGE
BOOM, STICK AND LINKAGES
ELECTRICAL
OTHER
Brochures
