- Category: Crawler Dozers ➔
- Manufacturer: Komatsu ➔
- Model: D21A-7E ➔
Introducing the Komatsu D21A-7E Crawler Dozer, a versatile and powerful machine designed to tackle a range of tasks with ease. With a compact yet robust build, this bulldozer boasts a gross power of 40 hp and an operating weight of 8113.1 lbs, making it ideal for various construction and landscaping projects. Equipped with a 4D94E engine and featuring a standard blade width of 7.2 ft, the D21A-7E delivers impressive performance and efficiency. Its advanced transmission system, undercarriage design, and other key specifications combine to ensure optimal maneuverability and productivity on the job site.
General Specifications
Dimensions
Ground Clearance | 1 ft (0 m)
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Height - Top of Cab | 8 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 (3 m)
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Width Over Tracks | 5 ft (2 m)
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Engine
Displacement | 169 cu in (2,776 cu cm)
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Engine Model | 4D94E
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Gross Power | 40 hp (30 kw)
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Number of Cylinders | 4
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Power Measured @ | 2450 rpm
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Operating Specifications
Operating Weight | 8,113 lbs (3,680 kg)
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Standard Blade
Height | 23 in (59 cm)
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Width | 7 ft (2 m)
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Transmission
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
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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