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Global-CE > Tractor > Cat Tractor > Cat Wheel Tractor-Scrapers 631K (Tier 4 Final/Stage IV)
Cat Wheel Tractor-Scrapers  631K (Tier 4 Final/Stage IV)

Cat Wheel Tractor-Scrapers 631K (Tier 4 Final/Stage IV)

Product Feature

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.

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

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

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.

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.

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.

Differential Lock Engagement Protection

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

Cab Improved

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

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.

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.

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.

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.

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.

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.


Product Parameter

Overview

631K Wheel Tractor-Scraper

General

Units:

180° Curb-to-Curb Turning Width40.12 ft 12.23 mLess
Fuel Tank Refill Capacity - Scraper231.0 gal (US) 874.0 lLess
Maximum Depth of Cut17.7 in 450.0 mmLess
Maximum Depth of Spread21.1 in 535.0 mmLess
Overall Shipping Height12.75 ft 3.89 mLess
Overall Width12.93 ft 3.94 mLess
Rated Load37 200 kg (82,200 lb); 37.2 tonnes (41.1 tons) 37 200 kg (82,200 lb); 37.2 tonnes (41.1 tons)Less
Scraper Capacity - Heaped34.0 yd³ 26.0 m³Less
Scraper Capacity - Struck24.0 yd³ 18.3 m³Less
Tires - Scraper37.25R35**E3 37.25R35**E3Less
Tires - Tractor37.25R35**E3 37.25R35**E3Less
Top Speed - Loaded34.7 mile/h 55.8 km/hLess
Width - Cut11.5 ft 3.51 mLess

Engine

EmissionsCat C18 ACERT engine meets U.S. EPA Tier 4 Final/EU Stage IV emission standards. Cat C18 ACERT engine meets U.S. EPA Tier 4 Final/EU Stage IV emission standards.Less
Engine Model - TractorCat C18 ACERT™ Cat C18 ACERT™Less
Flywheel Power - Tractor570.0 HP 425.0 kWLess
Rated Engine RPM - Tractor1900.0 r/min 1900.0 r/minLess

Tractor Engine

Flywheel Power - Tractor/Scraper570.0 HP 425.0 kWLess

Scraper Bowl

Scraper Capacity - Heaped34.0 yd³ 26.0 m³Less

Transmission

Top Speed - Loaded34.7 mile/h 55.8 km/hLess

Service Refill Capacities

Cooling System19.8 gal (US) 75.0 lLess
Crankcase - Tractor13.7 gal (US) 52.0 lLess
Diesel Exhaust Fluid (DEF)8.0 gal (US) 30.5 lLess
Fuel Tank231.0 gal (US) 874.0 lLess
Hydraulic System37.5 gal (US) 142.0 lLess
Transmission System29.0 gal (US) 110.0 lLess

Dimensions

Front of Tractor to Front Axle142.2 in 3612.0 mmLess
Axle to Vertical Hitch Pin20.0 in 509.0 mmLess
Wheel Base346.8 in 8808.0 mmLess
Rear Axle - Rear of Machine108.0 in 2744.0 mmLess
Ground Clearance - Tractor26.1 in 664.0 mmLess
Height - Overall Shipping153.2 in 3892.0 mmLess
Height - Scraper Blade Maximum20.0 in 510.0 mmLess
Height - Top of Cab147.0 in 3733.0 mmLess
Length - Maximum (Push-Pull)655.1 in 16640.0 mmLess
Length - Overall Machine - Standard597.0 in 15164.0 mmLess
Width - Inside of Bowl134.0 in 3404.0 mmLess
Width - Outside Rear Tires143.2 in 3636.0 mmLess
Width - Overall Machine155.0 in 3937.0 mmLess
Width - Rear Tire Centers96.9 in 2462.0 mmLess
Width - Tractor137.8 in 3499.0 mmLess

Non Push-Pull

Operating Weight - Empty102750.0 lb 46600.0 kgLess
Overall Length49.34 ft 15.04 mLess

Push-Pull

Operating Weight - Empty106430.0 lb 48275.0 kgLess
Overall Length - With Bail Down54.59 ft 16.64 mLess

Cab

Exterior Sound LevelThe exterior sound power level for the standard machine (ISO 6393) is 111.5 dB(A). The exterior sound power level for the standard machine (ISO 6393) is 111.5 dB(A).Less
ROPS/FOPSROPS/FOPS meet “ISO Standards.” ROPS/FOPS meet “ISO Standards.”Less

Safety Criteria Compliance Standards

BrakesISO 3450:2011 ISO 3450:2011Less
Falling Object Protective Structure (FOPS)ISO 3449:2005 Level II ISO 3449:2005 Level IILess
Reverse AlarmISO 9533:2010 ISO 9533:2010Less
Rollover Protection Structure (ROPS)ISO 3471:2008 for up to 21 282 kg (46,919 lb) ISO 3471:2008 for up to 21 282 kg (46,919 lb)Less
Seat BeltSAE J386:FEB2006 SAE J386:FEB2006Less
Steering SystemISO 5010:2007 ISO 5010:2007Less

Travel Speeds - Runout

Transmission Gear - Eighth34.7 mile/h 55.8 km/hLess
Transmission Gear - Fifth14.1 mile/h 22.7 km/hLess
Transmission Gear - First3.4 mile/h 5.5 km/hLess
Transmission Gear - Fourth10.5 mile/h 16.9 km/hLess
Transmission Gear - Reverse6.2 mile/h 9.9 km/hLess
Transmission Gear - Second6.2 mile/h 10.0 km/hLess
Transmission Gear - Seventh25.7 mile/h 41.4 km/hLess
Transmission Gear - Sixth19.0 mile/h 30.6 km/hLess
Transmission Gear - Third7.7 mile/h 12.4 km/hLess

Implement Cycle Times

Apron Lower3.8 s 3.8 sLess
Apron Raise4.0 s 4.0 sLess
Bail Lower2.1 s 2.1 sLess
Bail Raise1.5 s 1.5 sLess
Bowl Lower3.5 s 3.5 sLess
Bowl Raise3.5 s 3.5 sLess
Ejector Extend8.5 s 8.5 sLess
Ejector Retract8.5 s


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