- Category: Scrapers ➔
- Manufacturer: Caterpillar ➔
- Model: 637D ➔
The Caterpillar 637D is a self-loading, twin-engine wheel tractor scraper used in earthmoving, road construction, and large-scale site preparation. As part of Caterpillar's scraper lineup, the 637D is designed for high-volume material loading, hauling, and spreading in medium to large grading operations. It typically features a bowl, apron, ejector, and rear push-pull capability depending on configuration. The machine is used for moving soil, gravel, and other loose materials over moderate distances. The 637D is recognized for its production-oriented design, serviceability, and compatibility with support equipment in mass excavation and highway construction applications.
Bowl
| Heaped Capacity | 31.00 cu yd (23.70 cu m)
|
| Max Depth of Cut | 19.10 in (48.51 cm)
|
| Rated Payload | 74,957.20 lbs (34,000.06 kg)
|
| Struck Capacity | 21.10 cu yd (16.13 cu m)
|
| Width of Cut | 11.50 ft (3.51 m)
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Dimensions
| Overall Height | 13.70 ft (4.18 m)
|
| Overall Length | 48.60 ft (14.81 m)
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| Overall Width | 13.00 ft (3.96 m)
|
| Wheelbase | 28.70 ft (8.75 m)
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Operating Specifications
| Fuel Capacity | 370.70 gal (1,403.10 l)
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| Tire Size | 33.25-35 38PR (E-3)
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Scraper Engine
| Displacement | 640.80 cu in (10,500.85 cu cm)
|
| Make | Caterpillar
|
| Net Power | 255.00 hp (190.16 kw)
|
| Power Measured @ | 2200 rpm
|
Tractor Engine
| Displacement | 1,098.50 cu in (18,001.23 cu cm)
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| Make | Caterpillar
|
| Net Power | 450.00 hp (335.57 kw)
|
| Power Measured @ | 2000 rpm
|
Transmission
| Max Speed Forward | 31.70 mph (51.02 kph)
|
| Number of Forward Gears | 8
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Weights
| Front Axel - loaded | 90,566.00 lbs (41,080.10 kg)
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| Front Axle - empty | 64,767.50 lbs (29,378.08 kg)
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| Rear Axle - empty | 41,407.30 lbs (18,782.06 kg)
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| Rear Axle - loaded | 90,566.00 lbs (41,080.10 kg)
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| Total Operating - empty | 106,174.70 lbs (48,160.09 kg)
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| Total Operating - Loaded | 181,131.90 lbs (82,160.15 kg)
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