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637K (TIER 2/STAGE II)

Coal Bowl Scrapers

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Flywheel Power - Tractor/Scraper 425 kW (570 hp)/216 kW (290 hp)
Scraper Capacity - Heaped 38 m³
Top Speed - Loaded 55.8 km/h
Fuel Tank Refill Capacity - Scraper 1400 l
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637K (TIER 2/STAGE II)
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FEATURES & BENEFITS

Tractor Serviceability Improvement

The fuel, water and engine oil are relocated at ground level on the right hand side of the machine for easy access. Read more

Brakes

Have been changed from an air actuated drum shoe brake to a hydraulic actuated tractor wet disc brake and a scraper dry caliper. Read more

Tire Spin Reduction

This feature will allow the machine to control the slip of the tractor tires only. Read more

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 co... Read more

Advanced Cushion Hitch

With similar technology as the Cat® Advanced Ride Management seat suspension, this software allows the cushion hitch to prevent end stroke by having the ability to predic... Read more

High Pressure Steering

K Series steering system design requires significantly less steering effort. The reduced steering effort will allow for decreased operator fatigue and a more efficient op... Read more

Differential Lock Engagement Protection

This standard feature allows the machine to prevent the operator from engaging the differential lock when damage could occur. Read more

Cab Improved

The K Series cab interior improves operator comfort and visibility. The overall interior is 21% larger than the G Series cab. Read more

Machine Speed Limit

This feature is 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 o... Read more

SPECIFICATIONS FOR 637K (TIER 2/STAGE II)

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Engine
Flywheel Power - Tractor/Scraper 425 kW (570 hp)/216 kW (290 hp)
Operating Specifications
Scraper Capacity - Heaped 38 m³
Top Speed - Loaded 55.8 km/h
General
Fuel Tank Refill Capacity - Scraper 1400 l
Overall Shipping Height 4.15 m
Scraper Capacity - Heaped 38 m³
Overall Width 3.94 m
Scraper Capacity - Struck 31 m³
Maximum Depth of Spread 535 mm
Width - Cut 3.51 m
Operating Weight - Empty 52425 kg
Flywheel Power - Tractor 425 kW
Overall Length 15480 mm
Top Speed - Loaded 55.8 km/h
180° Curb-to-Curb Turning Width 12.98 m
Engine Model - Tractor Cat C18 ACERT™
Rated Engine RPM - Tractor 1900 r/min
Emissions Cat C9.3 ACERT and Cat C18 ACERT engines meet U.S. EPA Tier 2/EU Stage II equivalent emission standards.
Engine Model - Scraper Cat C9.3 ACERT
Tires - Scraper 37.25R35**E3
Flywheel Power - Scraper 216 kW
Rated Engine RPM - Scraper 2150 r/min
Tires - Tractor 37.25R35**E3
Rated Load 37 285 kg (82,200 lb)/37.285 tonnes (41.1 tons)
Maximum Depth of Cut 450 mm
Dimensions
Width - Tractor 3499 mm
Length - Overall Machine - Standard 15480 mm
Width - Overall Machine 3937 mm
Height - Top of Cab 3733 mm
Width - Rear Tire Centers 2462 mm
Rear Axle - Rear of Machine 2424 mm
Ground Clearance - Tractor 664 mm
Front of Tractor to Front Axle 3612 mm
Height - Overall Shipping 4140 mm
Axle to Vertical Hitch Pin 509 mm
Width - Inside of Bowl 3404 mm
Width - Outside Rear Tires 3636 mm
Height - Scraper Blade Maximum 538 mm
Wheel Base 9576 mm
Service Refill Capacities
Crankcase - Scraper 24.5 l
Transmission System - Scraper 49 l
Cooling System - Scraper 61 l
Fuel Tank 1400 l
Transmission System - Tractor 110 l
Hydraulic System 142 l
Cooling System - Tractor 75 l
Crankcase - Tractor 52 l
Travel Speeds - Runout
Transmission Gear - Third 12.4 km/h
Transmission Gear - Sixth 30.6 km/h
Transmission Gear - Eighth 55.8 km/h
Transmission Gear - Seventh 41.95 km/h
Transmission Gear - Reverse 9.9 km/h
Transmission Gear - Second 10 km/h
Transmission Gear - First 5.5 km/h
Transmission Gear - Fourth 16.9 km/h
Transmission Gear - Fifth 22.7 km/h
Safety Criteria Compliance Standards
Brakes ISO 3450:2011
Reverse Alarm ISO 9533:2010
Steering System ISO 5010:2007
Rollover Protection Structure (ROPS) ISO 3471:2008 for up to 21 282 kg (46,919 lb)
Falling Object Protective Structure (FOPS) ISO 3449:2005 Level II
Seat Belt SAE J386:FEB2006
Implement Cycle Times
Bowl Raise 3.5 s
Bail Lower 2.1 s
Apron Raise 4 s
Bowl Lower 3.5 s
Ejector Retract 8.5 s
Ejector Extend 8.5 s
Bail Raise 1.5 s
Apron Lower 3.8 s
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

SELECT MODELS TO COMPARE

Coal Bowl Scrapers

637G

Flywheel Power - Tractor/Scraper 373 kw (500 hp) / 211 kW (283 hp)
Flywheel Power - Tractor 345 / 373 kW (462 / 500 hp)
Flywheel Power - Scraper 198 / 211 kW (266 / 283 hp)
Tractor Engine Cat® C18 with ACERT Technology
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