Caterpillar Performance Handbook, January 2017, SEBD0351-47

Specifications ● Coal Bowl

Wheel Tractor-Scrapers

MODEL

637K

657G

Flywheel Power:Tractor Flywheel Power: Scraper

425 kW 216 kW

421/447 kW 306/337 kW

570 hp 290 hp

564/600 hp 410/451 hp 158,817 lb

Approx. OperatingWeight (Empty)

53 425 kg

72 190 kg

117,782 lb

45 m 3 56 m 3

Scraper Capacity: Struck Scraper Capacity: Heaped

31 m 3 38 m 3

41 yd 3 50 yd 3

59 yd 3 73 yd 3

Emission Standards

Tier 4 Final/Stage IV/ Japan 2014 (Tier 4 Final)

Tier 3/Stage IIIA/ Japan 2006 (Tier 3) equivalent

Rated Load

37 285 kg 90 710 kg 55.8 km/h

49 895 kg 121 933 kg

82,200 lb 199,982 lb 34.7 mph

110,000 lb 268,817 lb

Approx. OperatingWeight (Loaded)

Top Speed (Loaded)

53 km/h 24.43 m

33 mph

180° Curb-to-CurbTurningWidth GENERAL DIMENSIONS: Height — Overall Shipping

21.46 m

70'5"

80'2"

4.15 m 9.57 m 15.48 m 3.94 m

4.62 m 11.01 m 17.21 m 4.35 m

13'7" 31'5"

15'2" 36'1" 56'5" 14'4"

Wheelbase

Overall Length Overall Width

50'10" 12'11"

ShippingWidth (Draft Arm on Inside of Bowl) Center Line of Scraper Tread Center Line of Tractor Tread

3.91 m *

—

12'10"

2.46 m 2.46 m

2.81 m 2.63 m

8'1" 8'1"

9'3" 8'8"

*Standard Shipping Configuration. ◀ Operating weight includes standard machine, coolant, lubricants, full fuel tank, and operator. Operating weights for the 637K are based on Tier 4 Final/ Stage IV/Japan 2014 (Tier 4 Final) and operating weights for the 657G are based on Tier 3/Stage IIIA/Japan 2006 (Tier 3) equivalent platform machines. Deduct 650 kg (1433 lb) for the operating weight for the 637K Tier 2/Stage II/Japan 2001 (Tier 2) equivalent. NOTE: WheelTractor-Scrapers are not emission certified in Japan market. Coal Bowl Coal Bowl WheelTractor-Scrapers are typically used for building and maintaining coal stockpiles and hauling coal to the supply system at coal power plants. The self-loading capability, large capacity, coal pile compaction, and high speed of Coal Bowl Wheel Tractor-Scrapers make them the tool of choice for moving coal both short and long dis- tances. Coal Bowl WheelTractor-Scrapers are available in the 637K and 657G tandem engine models.

Coal Bowl Advantages: ● Load hoppers ● Manage coal stockpiles ● Compaction reduces risk of spontaneous combustion in coal stockpile ● Exclusively designed large capacity coal bowls Notes: ● The 637K Coal Scraper is 736 mm (29.0") longer, the bowl sides are 476 mm (18.7") taller, and the apron is 499 mm (19.6") taller than its earthmoving counterpart. ● The 657G Coal Scraper is 1072 mm (42.2") longer, the bowl sides are 1010 mm (39.8") taller, the apron is 677 mm (26.7") taller, and the ejector is 944 mm (37.2") taller than its earthmoving counterpart.

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