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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.
Benefits
Increased
Comfort
Ergonomic controls and a newly redesigned cab interior provide a more comfortable and efficient working environment all day long
Up To
12%
More Productivity
Improvements in fuel efficiency and the new APECS transmission controls deliver more productivity in most applications
Additional
Safety
New safety features help operators be more productive and work more efficiently all day long
Features At A Glance
MAXIMIZE PERFORMANCE
Coal Bowls are longer and higher than standard scraper bowls, which allows Wheel Tractor-Scrapers 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.
Sequence Assist (optional) uses cylinder position sensors to automate bowl, apron and further implement controls throughout the four core work cycles: Dig, Haul, Unload and Return. When utilized this can reduce up to 14 individual operator commands per cycle. Sequence Assist simplifies control over the implements, reduces joystick usage, automatically controls cushion hitch, transmission hold and ejector.
SAVE ON MAINTENANCE TIME
The fuel, water and engine oil are relocated at ground level on the right hand side of the machine for easy access.
In cold weather conditions the machine will use the Auto Stall feature to help warm up the transmission oil faster resulting in the machine shifting out of torque converter drive (2nd gear) faster than on previous models.
BUILT-IN SAFETY FEATURES
Brakes have been changed from an air actuated drum shoe brake to a hydraulic actuated tractor wet disc brake and a scraper dry caliper.
Tire Spin Reduction allows the machine to control the slip of the tractor tires only. When Tire Spin Reduction is selected the machine will control wheel spin on the tractor by keeping the slip in the optimal range for loading by adjusting engine rpms with no additional operator input.
Engine Over Speed Protection - In the event of an engine over speed situation, the compression brake or brakes will automatically engage with no operator input. The machine determines the over speed condition based on rate of acceleration and applies compression brakes automatically.
Differential Lock Engagement Protection allows the machine to prevent the operator from engaging the differential lock when damage could occur.
Coal bowl scrapers are effective in compacting coal, which reduces the risk of spontaneous combustion of coal in the stockpile by eliminating the air spaces.
OPERATOR COMFORT AND CONTROL
Advanced Cushion Hitch allows the cushion hitch to prevent end stroke by having the ability to predict end stroke events and manage the rate of dampening. Resulting in reduced hitch maintenance and improved operator ride in rough conditions.
The K Series steering system design requires significantly less steering effort. The reduced steering effort will allow for decreased operator fatigue and a more efficient operator resulting in possible higher rates of production late in the work cycle.
The K Series cab interior improves operator comfort and visibility. The overall interior is 21% larger than the G Series cab.
EFFICIENCY THROUGH TECHNOLOGY
Machine Speed Limitis designed to take the place of top gear selection. If the machine top speed needs to be limited the operator can select the top speed through the display or the top speed can be set in ET. This will allow the machine to find the correct gear that works best for the engine and transmission. Allowing the engine and transmission to select the correct gear to pull the load in most cases resulting in a lower engine load factor and lower fuel burn verses using top gear selection that required the machine to run at engine speeds at or close to high idle.
Ground Speed Control sets the desired top speed by the operator if job site conditions or segment speed limits require a speed less than full run out. Machine Speed Limit is intended for use when top speed needs to be limited for longer durations and Ground Speed Control is intended for use when the top speed needs to be reduced for shorter segments or intermediate periods of time. The operator can set the desired top speed and the machine will find the correct gear that works best for the engine and transmission. In most cases, allowing the engine and transmission to select the correct gear to pull the load will result in a lower engine load factor and lower fuel burn verses top gear selection.
Fuel Economy Mode is a two part feature when selected, the first part of the feature lowers the transmission shift points allowing shifting to take place at lower rpms to aid in fuel savings. The second part of the Fuel Economy Mode allows the machine, when operated at engine rpms less than full throttle, to automatically vary the power distribution between the tractor and the scraper, allowing the machine to utilize the more efficient tractor power train vs. the full time torque convertor drive scraper power train.
ISO 3471:2008 for up to 21 282 kg (46,919 lb)ISO 3471:2008 for up to 21 282 kg (46,919 lb)
General
180° Curb-to-Curb Turning Width
42.59 ft12.98 m
Flywheel Power - Tractor
570 HP425 kW
Tires - Tractor
37.25R35**E337.25R35**E3
Overall Width
12.93 ft3.94 m
Rated Engine RPM - Scraper
2150 r/min2150 r/min
Rated Engine RPM - Tractor
1900 r/min1900 r/min
Operating Weight - Empty
117782 lb52425 kg
Scraper Capacity - Heaped
50 yd³38 m³
Width - Cut
11.5 ft3.51 m
Top Speed - Loaded
34.7 mile/h55.8 km/h
Overall Length
609.5 in15480 mm
Fuel Tank Refill Capacity - Scraper
370 gal (US)1400 l
Scraper Capacity - Struck
41 yd³31 m³
Overall Shipping Height
13.62 ft4.15 m
Maximum Depth of Cut
17.7 in450 mm
Emissions
Cat C9.3 and Cat C18 engines meet U.S. EPA Tier 4 Final/EU Stage IV engine emission standards.Cat C9.3 and Cat C18 engines meet U.S. EPA Tier 4 Final/EU Stage IV engine emission standards.
Maximum Depth of Spread
21.1 in535 mm
Flywheel Power - Scraper
290 HP216 kW
Rated Load
34 472 kg (76,000 lb)/34.20 tonnes (38 tons)34 472 kg (76,000 lb)/34.20 tonnes (38 tons)
Engine Model - Scraper
Cat C9.3Cat C9.3
Engine Model - Tractor
Cat C18Cat C18
Tires - Scraper
37.25R35**E337.25R35**E3
Service Refill Capacities
Cooling System - Scraper
16.1 gal (US)61 l
Diesel Exhaust Fluid - Scraper
5.8 gal (US)22 l
Transmission System - Tractor
29 gal (US)110 l
Crankcase - Tractor
13.7 gal (US)52 l
Diesel Exhaust Fluid - Tractor
8 gal (US)30.5 l
Fuel Tank
370 gal (US)1400 l
Transmission System - Scraper
12.9 gal (US)49 l
Hydraulic System
37.5 gal (US)142 l
Cooling System - Tractor
19.8 gal (US)75 l
Crankcase - Scraper
6.5 gal (US)24.5 l
Travel Speeds - Runout
Transmission Gear - Eighth
34.7 mile/h55.8 km/h
Transmission Gear - First
3.4 mile/h5.5 km/h
Transmission Gear - Fourth
10.5 mile/h16.9 km/h
Transmission Gear - Reverse
6.2 mile/h9.9 km/h
Transmission Gear - Third
7.7 mile/h12.4 km/h
Transmission Gear - Seventh
25.7 mile/h41.95 km/h
Transmission Gear - Fifth
14.1 mile/h22.7 km/h
Transmission Gear - Sixth
19 mile/h30.6 km/h
Transmission Gear - Second
6.2 mile/h10 km/h
Implement Cycle Times
Bail Raise
1.5 s1.5 s
Bowl Lower
3.5 s3.5 s
Apron Lower
3.8 s3.8 s
Ejector Retract
8.5 s8.5 s
Bail Lower
2.1 s2.1 s
Apron Raise
4 s4 s
Ejector Extend
8.5 s8.5 s
Bowl Raise
3.5 s3.5 s
Dimensions
Width - Overall Machine
155 in3937 mm
Width - Tractor
137.8 in3499 mm
Ground Clearance - Tractor
26.1 in664 mm
Axle to Vertical Hitch Pin
20 in509 mm
Height - Top of Cab
147 in3733 mm
Width - Outside Rear Tires
143.2 in3636 mm
Height - Scraper Blade Maximum
21.2 in538 mm
Rear Axle - Rear of Machine
95.4 in2424 mm
Width - Rear Tire Centers
96.9 in2462 mm
Front of Tractor to Front Axle
142.2 in3612 mm
Width - Inside of Bowl
134 in3404 mm
Length - Overall Machine - Standard
609.5 in15480 mm
Height - Overall Shipping
163 in4140 mm
Wheel Base
377 in9576 mm
Cab
ROPS/FOPS
Meet ISO standardsMeet ISO standards
Exterior Sound Power Level
The exterior sound power level for the standard machine (ISO 6393:2008) is 118 dB(A).The exterior sound power level for the standard machine (ISO 6393:2008) is 118 dB(A).
Standard and optional equipment may vary. Consult your Cat dealer for details.
STEERING ARRANGEMENTS
Secondary Steering Arrangement
INTEGRATED TECHNOLOGIES
Sequence Assist Arrangement
Advanced Tire Spin Reduction
OTHER ATTACHMENTS
Camera arrangement – WAVS
Cab beacon
Air horn
Air horn and beacon
Wiring group
SERVICE INSTRUCTIONS
Film arrangement – U.S. (ANSI)
Film arrangement – International (ISO)
Compatible Technology and Services
Leverage Caterpillar connected data and security principles to improve efficiencies, increase productivity and make your business more profitable.
Assist
Equipment Management
Grade
Payload
Productivity
Cat Load Assist for Wheel Tractor-Scrapers
Cat® Load Assist for Wheel Tractor-Scrapers automates bowl loading with the push of a button. As the machine approaches the cut, the operator activates Load Assist to automate the cutting-edge height.
Cat® Sequence Assist for Wheel Tractor-Scrapers uses integrated software to automate repetitive tasks an operator performs when loading, hauling, and dumping. Reduce operator fatigue and rework caused from working manually.
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Cat® Load Assist for Wheel Tractor-Scrapers automates bowl loading with the push of a button. As the machine approaches the cut, the operator activates Load Assist to automate the cutting-edge height.
Cat® Sequence Assist for Wheel Tractor-Scrapers uses integrated software to automate repetitive tasks an operator performs when loading, hauling, and dumping. Reduce operator fatigue and rework caused from working manually.
Cat® Inspect allows you to access your equipment data on your mobile device. This easy-to-use app lets you capture inspection data and integrates with your other Cat data systems, so you can keep a close eye on your fleet. More than one million inspections are completed each year, providing convenience and accountability to equipment owners.
Cat® Product Link™ wirelessly connects you to your equipment giving you valuable insight into how your machine or fleet is performing. Information such as location, hours, fuel usage, productivity, idle time, and diagnostic codes are made available through online web applications so that you can make timely, fact-based decisions to maximize efficiency, improve productivity, and lower the cost of owning and operating your fleet. Available with satellite or cellular connectivity.
VisionLink® is a cloud-based software application that takes the guesswork out of fleet management with key insights to maximize performance - regardless of fleet size or equipment manufacturer. Receive equipment data seamlessly to your desktop or mobile device, all from a convenient centralized solution to make informed decisions at every turn.
Cat® Inspect allows you to access your equipment data on your mobile device. This easy-to-use app lets you capture inspection data and integrates with your other Cat data systems, so you can keep a close eye on your fleet. More than one million inspections are completed each year, providing convenience and accountability to equipment owners.
Cat® Product Link™ wirelessly connects you to your equipment giving you valuable insight into how your machine or fleet is performing. Information such as location, hours, fuel usage, productivity, idle time, and diagnostic codes are made available through online web applications so that you can make timely, fact-based decisions to maximize efficiency, improve productivity, and lower the cost of owning and operating your fleet. Available with satellite or cellular connectivity.
VisionLink® is a cloud-based software application that takes the guesswork out of fleet management with key insights to maximize performance - regardless of fleet size or equipment manufacturer. Receive equipment data seamlessly to your desktop or mobile device, all from a convenient centralized solution to make informed decisions at every turn.
Cat® Grade Control for Wheel Tractor-Scrapers is a factory-integrated machine control and guidance system designed to help you move material correctly the first time.
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Cat® Grade Control for Wheel Tractor-Scrapers is a factory-integrated machine control and guidance system designed to help you move material correctly the first time.
Cat® Payload Estimator for Scrapers uses bowl lift cylinder pressure from the end of the cut to calculate payload. Payload Estimator is optimized with Sequence Assist, which helps to increase productivity with less operator effort.
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Cat® Payload Estimator for Scrapers uses bowl lift cylinder pressure from the end of the cut to calculate payload. Payload Estimator is optimized with Sequence Assist, which helps to increase productivity with less operator effort.
VisionLink® Productivity is an easy-to-use cloud-based platform that gathers and summarizes machine telematics and jobsite data from all your equipment. Actionable performance data is transmitted to the web platform for users to access anywhere, anytime via a mobile, tablet, or desktop device - on or off the jobsite.
VisionLink® Productivity is an easy-to-use cloud-based platform that gathers and summarizes machine telematics and jobsite data from all your equipment. Actionable performance data is transmitted to the web platform for users to access anywhere, anytime via a mobile, tablet, or desktop device - on or off the jobsite.
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