- Category: Mini Excavators ➔
- Manufacturer: Caterpillar ➔
- Model: 304E CR ➔
The Caterpillar 304E CR is a compact mini excavator designed for construction, utility, landscaping, and site preparation work. As part of Caterpillar's 304 series, the 304E CR features a reduced tail swing design for improved maneuverability in confined spaces. It is commonly used for digging, trenching, grading, and material handling on urban and residential job sites. The machine is typically equipped with a diesel engine, hydraulic system, and operator cab or canopy options. The Caterpillar 304E CR is valued for its compact size, transportability, and versatility in applications where space is limited and precision excavation is required.
Blades
| Blade Height | 12.80 in (32.51 cm)
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| Blade Lift Height | 15.80 in (40.13 cm)
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| Blade Width | 6.40 ft (1.95 m)
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| Dig Depth | 18.50 in (46.99 cm)
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Boom/Stick Excavator Option 1
| Max Digging Depth | 11.30 ft (3.44 m)
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| Max Reach Along Ground | 18.30 ft (5.58 m)
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Dimensions
| Height - Over Cab | 8.20 ft (2.50 m)
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| Maximum Cutting Height - Long Stick | 16.70 ft (5.09 m)
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| Maximum Cutting Height - Standard Stick | 16.40 ft (5.00 m)
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| Maximum Digging Depth - Standard Stick | 10.30 ft (3.14 m)
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| Maximum Dump Height - Long Stick | 12.10 ft (3.69 m)
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| Maximum Dump Height - Standard Stick | 11.80 ft (3.60 m)
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| Maximum Horizontal Reach - Long Stick | 18.00 ft (5.49 m)
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| Maximum Horizontal Reach - Standard Stick | 17.10 ft (5.21 m)
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| Maximum Reach - Ground Level - Standard Stick | 17.60 ft (5.36 m)
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| Maximum Vertical Dig Depth - Long Stick | 8.40 ft (2.56 m)
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| Maximum Vertical Dig Depth - Standard Stick | 8.00 ft (2.44 m)
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| Shipping Height | 8.20 ft (2.50 m)
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| Shipping Length | 15.80 ft (4.82 m)
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| Track Shoe Width | 1.10 ft (0.34 m)
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| Transport Width | 6.40 ft (1.95 m)
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Engine
| Bore | 3.40 in (8.64 cm)
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| Displacement | 146.00 cu in (2,392.52 cu cm)
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| Engine Model | Cat C2.4
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| Gross Power | 42.00 hp (31.32 kw)
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| Net Power | 40.00 hp (29.83 kw)
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| Stroke | 4.00 in (10.16 cm)
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Hydraulic System
| Auxiliary Circuit - Primary | 15.90 gpm (60.18 lpm)
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| Auxiliary Circuit - Secondary | 7.10 gpm (26.87 lpm)
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| Digging Force - Bucket | 8,498.00 lbs (3,854.63 kg)
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| Digging Force - Stick - Long | 4,384.00 lbs (1,988.55 kg)
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| Digging Force - Stick - Standard | 4,856.00 lbs (2,202.65 kg)
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| Operating Pressure - Equipment | 3553 psi
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| Operating Pressure - Swing | 2625 psi
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| Operating Pressure - Travel | 3553 psi
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Operating Specifications
| Operating Weight | 8,838.00 lbs (4,008.85 kg)
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Service Refill Capacities
| Cooling System | 1.70 gal (6.43 l)
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| Engine Oil | 2.50 gal (9.46 l)
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| Fuel Tank | 12.20 gal (46.18 l)
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| Hydraulic System | 17.20 gal (65.10 l)
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| Hydraulic Tank | 11.20 gal (42.39 l)
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Swing System
| Boom Swing - Left - With Stop | 55 degrees
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| Boom Swing - Left - Without Stop | 80 degrees
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| Boom Swing - Right | 50 degrees
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| Machine Swing Speed | 9 rpm
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Travel System
| Maximum Traction Force - High Speed | 3,777.00 lbs (1,713.22 kg)
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| Maximum Traction Force - Low Speed | 6,921.00 lbs (3,139.32 kg)
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| Travel Speed - High | 2.80 mph (4.51 kph)
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| Travel Speed - Low | 1.60 mph (2.57 kph)
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Weights
| Operating Weight - With Cab | 8,838.00 lbs (4,008.85 kg)
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