- Category: Mini Excavators ➔
- Manufacturer: Caterpillar ➔
- Model: 304C CR ➔
The Caterpillar 304C CR is a compact mini excavator designed for digging, trenching, grading, and utility work in confined job sites. It features a reduced tail swing design for improved maneuverability near walls, structures, and obstacles. The 304C CR is commonly equipped with a hydraulic system suitable for attachments such as buckets, augers, and breakers. Its compact size supports transport between jobs and operation in urban, residential, and landscaping applications. The Caterpillar 304C CR is part of Caterpillar's mini excavator lineup and is used in construction, site preparation, and light excavation tasks where space is limited.
Boom/Stick Excavator Option 1
| Max Cutting Height | 17 ft (5 m)
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| Max Digging Depth | 11 ft (3 m)
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| Max Loading Height | 12 ft (4 m)
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| Max Reach Along Ground | 18 ft (5 m)
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| Max Vertical Wall Digging Depth | 8 ft (2 m)
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| Shipping Height of Unit | 8 ft (3 m)
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| Shipping Length of Unit | 17 ft (5 m)
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Boom/Stick Excavator Option 2
| Max Cutting Height | 18 ft (5 m)
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| Max Digging Depth | 12 ft (4 m)
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| Max Loading Height | 13 ft (4 m)
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| Max Reach Along Ground | 19 ft (6 m)
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| Max Vertical Wall Digging Depth | 9 ft (3 m)
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| Shipping Height of Unit | 8 ft (3 m)
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| Shipping Length of Unit | 17 ft (5 m)
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Dimensions
| Ground Clearance | 1 ft (0 m)
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| Height - Over Cab | 8 ft (3 m)
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| Height - Top of Cab | 8 ft (3 m)
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| Length - Center of Rollers | 18 ft (5 m)
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| Maximum Cutting Height - Long Stick | 18 ft (5 m)
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| Maximum Cutting Height - Standard Stick | 17 ft (5 m)
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| Maximum Digging Depth - Standard Stick | 11 ft (3 m)
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| Maximum Dump Height - Long Stick | 13 ft (4 m)
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| Maximum Dump Height - Standard Stick | 12 ft (4 m)
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| Maximum Reach - Ground Level - Standard Stick | 18 ft (5 m)
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| Maximum Vertical Dig Depth - Standard Stick | 8 ft (2 m)
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| Removal Counterweight Clearance | 2 ft (1 m)
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| Shipping Height | 8 ft (3 m)
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| Shipping Length | 17 ft (5 m)
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| Swing Radius - Rear | 4 ft (1 m)
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| Tail Swing Radius | 4 ft (1 m)
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| Track Shoe Width | 1 ft (0 m)
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| Transport Width | 7 ft (2 m)
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| Width to Outside of Tracks | 7 ft (2 m)
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Engine
| Bore | 4 in (9 cm)
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| Displacement | 153 cu in (2,507 cu cm)
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| Engine Model | Mitsubishi S4Q2
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| Gross Power | 42 hp (31 kw)
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| Net Power | 43 hp (32 kw)
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| Number of Cylinders | 4
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| Power Measured @ | 2400 rpm
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| Stroke | 4 in (10 cm)
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Hydraulic System
| Digging Force - Bucket | 10,049 lbs (4,558 kg)
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| Digging Force - Stick - Long | 4,788 lbs (2,172 kg)
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| Digging Force - Stick - Standard | 5,553 lbs (2,519 kg)
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| Operating Pressure - Equipment | 3553 psi
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| Operating Pressure - Swing | 2553 psi
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| Operating Pressure - Travel | 3553 psi
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Operating Specifications
| Alternator Supplied Amperage | 50 amps
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| Cooling System Fluid Capacity | 3 gal (11 l)
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| Engine Oil Capacity | 2 gal (7 l)
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| Fuel Capacity | 19 gal (72 l)
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| Hydraulic Pump Flow Capacity | 31 gpm (119 lpm)
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| Hydraulic System Fluid Capacity | 21 gal (78 l)
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| Hydraulic System Relief Valve Pressure | 3553 psi
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| Operating Voltage | 12 volts
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| Operating Weight | 10,844 lbs (4,919 kg)
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Service Refill Capacities
| Cooling System | 3 gal (11 l)
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| Engine Oil | 2 gal (7 l)
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| Fuel Tank | 19 gal (72 l)
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| Hydraulic System | 21 gal (78 l)
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| Hydraulic Tank | 13 gal (48 l)
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| Track Gauge | 5 ft (2 m)
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Swing Mechanism
Swing System
Travel System
| Travel Speed - High | 3 mph (5 kph)
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Undercarriage
| Max Travel Speed | 3 mph (5 kph)
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| Shoe Size | 16 in (41 cm)
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| Track Gauge | 5 ft (2 m)
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Weights
| Operating Weight | 10,582 lbs (4,800 kg)
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| Operating Weight - With Cab | 10,844 lbs (4,919 kg)
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