304 CR
Designed and built by Caterpillar² to deliver exceptional performance, versatility and productivity. Easy to operate in confined jobsites and backed by Caterpillar's commitment to serviceability and customer support.
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301.5
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301.6C
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301.8C
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303C CR
304 CR
303 CR
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308C CR
304 CR Mini Hydraulic Excavator
Overview & Specifications
Engine
Engine Model
3013
3013
Net Power
36 hp
26.5 kW
Gross Power
37 hp
27.3 kW
Weights
Operating Weight
9786 lb
4440 kg
Operating Weight with Cab
9896 lb
4490 kg
Dimensions
Max digging depth - standard stick
11 ft
3350 mm
Max reach ground level - standard stick
18.25 ft
5560 mm
Center ground clearance
1.1 ft
335 mm
Height over cab
8.51 ft
2595 mm
Max dump height - standard stick
11.75 ft
3580 mm
Max vertical dig depth - standard stick
9.32 ft
2840 mm
Shipping length
16.99 ft
5180 mm
Swing radius - rear
3.25 ft
990 mm
Track gauge
6.5 ft
1980 mm
Track shoe width
1.31 ft
400 mm
Engine Dimensions
Bore
3.07 in
78 mm
Stroke
3.62 in
92 mm
Displacement
107 in3
1.76 L
Travel System
Gradeability (max) – high
25 Degrees
25 Degrees
Max traction force - high speed
9260 lb
41.2 kN
Travel Speed – High
2.9 mph
4.6 km/h
Travel Speed – Low
1.6 mph
2.6 km/h
Hydraulic System
Pump - gear (tandem)
11.47 gal/min
43.4 L/min
Operating Pressure – Equipment
3553.42 psi
245 bar
Digging forces - stick (standard)
5373 lb
23.9 kN
Digging Force – Stick (long)
4699 lb
20.9 kN
Digging Force – Bucket
8228 lb
36.6 kN
Operating Pressure – Travel
3550 psi
245 bar
Operating Pressure – Swing
2990 psi
206 bar
Auxiliary Circuits - primary pressure
3553.42 psi
245 bar
Auxiliary circuit - primary
22.22 gal/min
84.1 L/min
Swing System
Type
Hydraulic Motor Driven
Hydraulic Motor Driven
Machine Swing Speed
9.3 RPM
9.3 RPM
Boom swing - left (without stop)
55 Degrees
55 Degrees
Boom swing - left (with stop)
80 Degrees
80 Degrees
Boom Swing – Right
50 Degrees
50 Degrees
Electrical System
Type
Twelve-volt system
Twelve-volt system
Blade
Dig Depth
16.93 in
430 mm
Lift Height
17.72 in
450 mm
Service Refill Capacities
Cooling system TAG
1.59 gal
6 L
Engine Oil
2.2 gal
8.4 L
Hydraulic Tank
18 gal
70 L
Fuel Tank
16 gal
62 L
Hydraulic System
24 gal
91 L
MSC Comments
MSC Spec Date
1/1/2000
1/1/2000