- Category: Crawler Dozers ➔
- Manufacturer: Komatsu ➔
- Model: D21A-5 ➔
The Komatsu D21A-5 Crawler Dozer is a reliable and efficient piece of equipment designed for various earthmoving and construction tasks. With a powerful engine generating 39 horsepower and a gross power output of 39 hp, this machine boasts impressive capabilities. Its hydraulic system provides a pump flow capacity of 14.1 gpm and a relief valve pressure of 2204.7 psi, ensuring smooth operation. The compact yet robust design, combined with features like a standard blade capacity of 1 cu yd and a fuel capacity of 15.9 gallons, make the Komatsu D21A-5 an ideal choice for demanding worksites.
Dimensions
| Ground Clearance | 1 ft (0 m)
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| Height - Top of Cab | 7 ft (2 m)
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| Length of Track on Ground | 6 ft (2 m)
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| Length w/ Blade | 11 ft (3 m)
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| Length w/o Blade | 8 ft (2 m)
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| Width Over Tracks | 5 ft (2 m)
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Engine
| Displacement | 180 cu in (2,941 cu cm)
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| Engine Model | 4D92-2P
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| Gross Power | 39 hp (29 kw)
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| Max Torque | 109 lbs ft (147 nm)
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| Number of Cylinders | 4
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| Power Measured @ | 2450 rpm
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Hydraulic System
| Pump Flow Capacity | 14 gpm (53 lpm)
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| Relief Valve Pressure | 2204.7 psi
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Operating Specifications
| Cooling System Fluid Capacity | 4 gal (13 l)
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| Fuel Capacity | 16 gal (60 l)
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| Operating Weight | 7,981 lbs (3,620 kg)
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Standard Blade
| Capacity | 1 cu yd (1 cu m)
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| Height | 23 in (59 cm)
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| Width | 7 ft (2 m)
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Transmission
| Max Speed - Forward | 3 mph (5 kph)
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| Max Speed - Reverse | 3 mph (5 kph)
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| Number of Forward Gears | 2
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| Number of Reverse Gears | 2
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| Transmission Type | HS
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Undercarriage
| Ground Pressure | 4.3 psi
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| Number of Shoes per Side | 37
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| Number of Track Rollers per Side | 5
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| Standard Shoe Size | 12 in (30 cm)
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| Track Gauge | 4 ft (1 m)
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| Track Pitch | 5 in (14 cm)
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