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637K coal bowls are longer and higher than standard wheel tractor scraper bowls, allowing them to haul 38 m (50 yd) of low density loose coal. The bowls are designed and built to specifically deliver in coming loose coal to the stock pile and reserve stock piled coal to the feeder system.

Cat Specs
Photos
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Engine

Flywheel Power - Tractor/Scraper
425 kW (570 hp)/216 kW (290 hp)

Operating Specifications

Scraper Capacity - Heaped
50 yd³
Top Speed - Loaded
34.7 mile/h

Dimensions

Width - Outside Rear Tires
143.2 in
Width - Overall Machine
155 ft
Width - Tractor
137.8 ft
Width - Inside of Bowl
134 ft
Height - Overall Shipping
163 ft
Height - Top of Cab
147 ft
Ground Clearance - Tractor
26.1 ft
Front of Tractor to Front Axle
142.2 ft
Axle to Vertical Hitch Pin
20 ft
Height - Scraper Blade Maximum
21.2 ft
Wheel Base
377 ft
Rear Axle - Rear of Machine
95.4 ft
Length - Overall Machine - Standard
609.5 in
Width - Rear Tire Centers
96.9 in

Service Refill Capacities

Fuel Tank
370 gal (US)
Diesel Exhaust Fluid - Scraper
5.8 gal (US)
Diesel Exhaust Fluid - Tractor
8 gal (US)
Hydraulic System
37.5 gal (US)
Cooling System - Scraper
16.1 gal (US)
Transmission System - Tractor
29 gal (US)
Transmission System - Scraper
12.9 gal (US)
Crankcase - Scraper
6.5 gal (US)
Crankcase - Tractor
13.7 gal (US)
Cooling System - Tractor
19.8 gal (US)

Safety Criteria Compliance Standards

Brakes
ISO 3450:2011
Falling Object Protective Structure (FOPS)
ISO 3449:2005 Level II
Steering System
ISO 5010:2007
Rollover Protection Structure (ROPS)
ISO 3471:2008 for up to 21 282 kg (46,919 lb)
Seat Belt
SAE J386:FEB2006
Reverse Alarm
ISO 9533:2010

General

Overall Length
609.5 ft
Rated Engine RPM - Scraper
2150 r/min
Flywheel Power - Scraper
290 HP
Tires - Scraper
37.25R35**E3
Maximum Depth of Cut
17.7 in
Rated Load
34 472 kg (76,000 lb)/34.20 tonnes (38 tons)
Rated Engine RPM - Tractor
1900 r/min
Engine Model - Scraper
Cat C9.3
Scraper Capacity - Heaped
50 yd³
Fuel Tank Refill Capacity - Scraper
370 gal (US)
Top Speed - Loaded
34.7 mile/h
Overall Shipping Height
13.62 ft
Emissions
Cat C9.3 and Cat C18 engines meet U.S. EPA Tier 4 Final/EU Stage IV engine emission standards.
180° Curb-to-Curb Turning Width
42.59 ft
Tires - Tractor
37.25R35**E3
Overall Width
12.93 ft
Operating Weight - Empty
117782 lb
Maximum Depth of Spread
21.1 in
Engine Model - Tractor
Cat C18
Flywheel Power - Tractor
570 HP
Width - Cut
11.5 ft
Scraper Capacity - Struck
41 yd³

Implement Cycle Times

Bail Lower
2.1 s
Ejector Extend
8.5 s
Bail Raise
1.5 s
Ejector Retract
8.5 s
Apron Lower
3.8 s
Bowl Raise
3.5 s
Apron Raise
4 s
Bowl Lower
3.5 s

Travel Speeds - Runout

Transmission Gear - Fourth
10.5 mile/h
Transmission Gear - Reverse
6.2 mile/h
Transmission Gear - First
3.4 mile/h
Transmission Gear - Third
7.7 mile/h
Transmission Gear - Seventh
25.7 mile/h
Transmission Gear - Sixth
19 mile/h
Transmission Gear - Eighth
34.7 mile/h
Transmission Gear - Second
6.2 mile/h
Transmission Gear - Fifth
14.1 mile/h

Cab

ROPS/FOPS
Meet ISO standards
Exterior Sound Power Level
The exterior sound power level for the standard machine (ISO 6393:2008) is 118 dB(A).