Coal Bowl Scrapers Caterpillar 637K (TIER 2/STAGE II)

637K Wheel Tractor – Coal Bowl Scraper

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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 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.

Sequence Assist (Optional Attachment)

This option 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.

Load Assist (Optional Attachment)

Is designed to help shorten the learning curve of inexperienced operators to ensure consistency and faster loading of material while reducing effort of the operator. Based on the speed of the machine, Load Assist automatically adjusts the cutting edge height to manage wheel slip and to ensure consistent and efficient loading in bulk earthmoving applications.

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 predict end stroke events and manage the rate of dampening. Resulting in reduced hitch maintenance and improved operator ride in rough conditions.

Cat Grade Control (Optional Attachment)

Intelligently ensures the machine does not cut below grade in the cut area or over fill in the fill area – avoiding rework and moving unnecessary material.

Brakes

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

Cab Improved

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

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.

Ground Speed Control

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.

Payload Estimator (Optional Attachment)

The Payload Estimator will calculate the payload of the machine in tonnes or tons by measuring the bowl lift cylinder pressures at the beginning of the loaded haul segment. This feature works best when using Sequence Assist. Using Payload Estimator during testing has achieved better than 95% accuracy when compared to actual scale weights. The Payload Estimator feature comes automatically when a machine is ordered with Sequence Assist.

Fuel Economy Mode

This 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.

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 operator resulting in possible higher rates of production late in the work cycle.

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

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

Tire Spin Reduction

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

Specificatii tehnice

SPECIFICATII TEHNICE

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
Dimensions
Width - Tractor 3499 mm
General
Maximum Depth of Spread 535 mm
Width - Cut 3.51 m
Dimensions
Length - Overall Machine - Standard 15480 mm
General
Operating Weight - Empty 52425 kg
Dimensions
Width - Overall Machine 3937 mm
Service Refill Capacities
Crankcase - Scraper 24.5 l
Travel Speeds - Runout
Transmission Gear - Third 12.4 km/h
Safety Criteria Compliance Standards
Brakes ISO 3450:2011
General
Flywheel Power - Tractor 425 kW
Overall Length 15480 mm
Travel Speeds - Runout
Transmission Gear - Sixth 30.6 km/h
Dimensions
Height - Top of Cab 3733 mm
Implement Cycle Times
Bowl Raise 3.5 s
Travel Speeds - Runout
Transmission Gear - Eighth 55.8 km/h
Service Refill Capacities
Transmission System - Scraper 49 l
Cooling System - Scraper 61 l
Travel Speeds - Runout
Transmission Gear - Seventh 41.95 km/h
Service Refill Capacities
Fuel Tank 1400 l
Dimensions
Width - Rear Tire Centers 2462 mm
Travel Speeds - Runout
Transmission Gear - Reverse 9.9 km/h
Dimensions
Rear Axle - Rear of Machine 2424 mm
Travel Speeds - Runout
Transmission Gear - Second 10 km/h
Implement Cycle Times
Bail Lower 2.1 s
Service Refill Capacities
Transmission System - Tractor 110 l
General
Top Speed - Loaded 55.8 km/h
Travel Speeds - Runout
Transmission Gear - First 5.5 km/h
Implement Cycle Times
Apron Raise 4 s
Travel Speeds - Runout
Transmission Gear - Fourth 16.9 km/h
Dimensions
Ground Clearance - Tractor 664 mm
Front of Tractor to Front Axle 3612 mm
Height - Overall Shipping 4140 mm
Implement Cycle Times
Bowl Lower 3.5 s
Ejector Retract 8.5 s
Safety Criteria Compliance Standards
Reverse Alarm ISO 9533:2010
Cab
Exterior Sound Power Level The exterior sound power level for the standard machine (ISO 6393:2008) is 118 dB(A).
General
180° Curb-to-Curb Turning Width 12.98 m
Safety Criteria Compliance Standards
Steering System ISO 5010:2007
Implement Cycle Times
Ejector Extend 8.5 s
Dimensions
Axle to Vertical Hitch Pin 509 mm
Width - Inside of Bowl 3404 mm
Safety Criteria Compliance Standards
Rollover Protection Structure (ROPS) ISO 3471:2008 for up to 21 282 kg (46,919 lb)
Implement Cycle Times
Bail Raise 1.5 s
Dimensions
Width - Outside Rear Tires 3636 mm
Service Refill Capacities
Hydraulic System 142 l
Implement Cycle Times
Apron Lower 3.8 s
General
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.
Safety Criteria Compliance Standards
Falling Object Protective Structure (FOPS) ISO 3449:2005 Level II
General
Engine Model - Scraper Cat C9.3 ACERT
Tires - Scraper 37.25R35**E3
Flywheel Power - Scraper 216 kW
Dimensions
Height - Scraper Blade Maximum 538 mm
Safety Criteria Compliance Standards
Seat Belt SAE J386:FEB2006
General
Rated Engine RPM - Scraper 2150 r/min
Travel Speeds - Runout
Transmission Gear - Fifth 22.7 km/h
General
Tires - Tractor 37.25R35**E3
Service Refill Capacities
Cooling System - Tractor 75 l
Crankcase - Tractor 52 l
General
Rated Load 37 285 kg (82,200 lb)/37.285 tonnes (41.1 tons)
Maximum Depth of Cut 450 mm
Cab
ROPS/FOPS Meet ISO standards
Dimensions
Wheel Base 9576 mm
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