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

Service Refill Capacities

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

Safety Criteria Compliance Standards

Reverse Alarm
ISO 9533:2010
Seat Belt
SAE J386:FEB2006
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)

General

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

Implement Cycle Times

Bail Lower
2.1 s
Ejector Extend
8.5 s
Bail Raise
1.5 s
Ejector Retract
8.5 s
Bowl Raise
3.5 s
Apron Lower
3.8 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 - Seventh
25.7 mile/h
Transmission Gear - Sixth
19 mile/h
Transmission Gear - First
3.4 mile/h
Transmission Gear - Third
7.7 mile/h
Transmission Gear - Second
6.2 mile/h
Transmission Gear - Eighth
34.7 mile/h
Transmission Gear - Fifth
14.1 mile/h

Cab

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