Caterpillar 304C CR Mini Excavator Specs

Category: Mini Excavators ➔
Manufacturer: Caterpillar ➔
Model: 304C CR ➔

The Caterpillar 304C CR is a compact mini excavator designed for construction, utility, landscaping, and site preparation work. It features a reduced tail swing design for operation in confined spaces, making it suitable for urban job sites and tight access areas. The 304C CR is equipped with a Caterpillar diesel engine, hydraulic system, and undercarriage built for digging, trenching, grading, and material handling applications. Common attachments include buckets, augers, and hydraulic tools. As part of Caterpillar's mini excavator lineup, the 304C CR is used for small to medium earthmoving tasks where maneuverability, transportability, and efficient operation are important.

Boom/Stick Excavator Option 1

Caterpillar 304C CR Mini Excavator Boom/Stick Excavator Option 1 specifications
Max Cutting Height	17.40 ft (5.30 m)
Max Digging Depth	10.90 ft (3.32 m)
Max Loading Height	12.10 ft (3.69 m)
Max Reach Along Ground	18.00 ft (5.49 m)
Max Vertical Wall Digging Depth	8.00 ft (2.44 m)
Shipping Height of Unit	8.40 ft (2.56 m)
Shipping Length of Unit	17.00 ft (5.18 m)

Boom/Stick Excavator Option 2

Caterpillar 304C CR Mini Excavator Boom/Stick Excavator Option 2 specifications
Max Cutting Height	18.00 ft (5.49 m)
Max Digging Depth	12.10 ft (3.69 m)
Max Loading Height	12.90 ft (3.93 m)
Max Reach Along Ground	19.20 ft (5.85 m)
Max Vertical Wall Digging Depth	9.10 ft (2.77 m)
Shipping Height of Unit	8.40 ft (2.56 m)
Shipping Length of Unit	17.40 ft (5.30 m)

Dimensions

Caterpillar 304C CR Mini Excavator Dimensions specifications
Ground Clearance	1.20 ft (0.37 m)
Height - Over Cab	8.40 ft (2.56 m)
Height - Top of Cab	8.40 ft (2.56 m)
Length - Center of Rollers	17.91 ft (5.46 m)
Maximum Cutting Height - Long Stick	18.00 ft (5.49 m)
Maximum Cutting Height - Standard Stick	17.40 ft (5.30 m)
Maximum Digging Depth - Standard Stick	10.80 ft (3.29 m)
Maximum Dump Height - Long Stick	12.80 ft (3.90 m)
Maximum Dump Height - Standard Stick	12.20 ft (3.72 m)
Maximum Reach - Ground Level - Standard Stick	17.90 ft (5.46 m)
Maximum Vertical Dig Depth - Standard Stick	8.00 ft (2.44 m)
Removal Counterweight Clearance	2.00 ft (0.61 m)
Shipping Height	8.40 ft (2.56 m)
Shipping Length	17.00 ft (5.18 m)
Swing Radius - Rear	3.60 ft (1.10 m)
Tail Swing Radius	3.50 ft (1.07 m)
Track Shoe Width	1.40 ft (0.43 m)
Transport Width	6.50 ft (1.98 m)
Width to Outside of Tracks	6.50 ft (1.98 m)

Engine

Caterpillar 304C CR Mini Excavator Engine specifications
Bore	3.50 in (8.89 cm)
Displacement	153.00 cu in (2,507.23 cu cm)
Engine Model	Mitsubishi S4Q2
Gross Power	42.00 hp (31.32 kw)
Net Power	43.20 hp (32.21 kw)
Number of Cylinders	4
Power Measured @	2400 rpm
Stroke	4.10 in (10.41 cm)

Hydraulic System

Caterpillar 304C CR Mini Excavator Hydraulic System specifications
Digging Force - Bucket	10,049.00 lbs (4,558.16 kg)
Digging Force - Stick - Long	4,788.00 lbs (2,171.80 kg)
Digging Force - Stick - Standard	5,553.00 lbs (2,518.80 kg)
Operating Pressure - Equipment	3553 psi
Operating Pressure - Swing	2553 psi
Operating Pressure - Travel	3553 psi

Operating Specifications

Caterpillar 304C CR Mini Excavator Operating Specifications specifications
Alternator Supplied Amperage	50 amps
Cooling System Fluid Capacity	3.00 gal (11.36 l)
Engine Oil Capacity	1.90 gal (7.19 l)
Fuel Capacity	19.10 gal (72.29 l)
Hydraulic Pump Flow Capacity	31.40 gpm (118.85 lpm)
Hydraulic System Fluid Capacity	20.60 gal (77.97 l)
Hydraulic System Relief Valve Pressure	3553 psi
Operating Voltage	12 volts
Operating Weight	10,844.00 lbs (4,918.76 kg)

Service Refill Capacities

Caterpillar 304C CR Mini Excavator Service Refill Capacities specifications
Cooling System	2.90 gal (10.98 l)
Engine Oil	1.80 gal (6.81 l)
Fuel Tank	19.00 gal (71.92 l)
Hydraulic System	20.60 gal (77.97 l)
Hydraulic Tank	12.70 gal (48.07 l)
Track Gauge	5.20 ft (1.58 m)

Swing Mechanism

Caterpillar 304C CR Mini Excavator Swing Mechanism specifications
Swing Speed	9 rpm

Swing System

Caterpillar 304C CR Mini Excavator Swing System specifications
Machine Swing Speed	9 rpm

Travel System

Caterpillar 304C CR Mini Excavator Travel System specifications
Travel Speed - High	2.90 mph (4.67 kph)

Undercarriage

Caterpillar 304C CR Mini Excavator Undercarriage specifications
Max Travel Speed	2.80 mph (4.51 kph)
Shoe Size	16.00 in (40.64 cm)
Track Gauge	5.20 ft (1.58 m)

Weights

Caterpillar 304C CR Mini Excavator Weights specifications
Operating Weight	10,582.00 lbs (4,799.92 kg)
Operating Weight - With Cab	10,844.00 lbs (4,918.76 kg)

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