631K Wheel Tractor-Scraper

631K Wheel Tractor-Scraper

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Scraper Bowl

Scraper Capacity - Heaped
34yd³

Transmission

Top Speed - Loaded
34.7mile/h

Dimensions

Front of Tractor to Front Axle
142.2in
Axle to Vertical Hitch Pin
20in
Wheel Base
346.8in
Rear Axle - Rear of Machine
108in
Width - Tractor
137.8in
Width - Rear Tire Centers
96.9in
Width - Overall Machine
155in
Width - Outside Rear Tires
143.2in
Width - Inside of Bowl
134in
Length - Overall Machine - Standard
597in
Height - Top of Cab
147in
Height - Scraper Blade Maximum
20in
Height - Overall Shipping
153.2in
Ground Clearance - Tractor
26.1in
Length - Maximum (Push-Pull)
655.1in

Travel Speeds - Runout

Transmission Gear - Third
7.7mile/h
Transmission Gear - Sixth
19mile/h
Transmission Gear - Seventh
25.7mile/h
Transmission Gear - Second
6.2mile/h
Transmission Gear - Reverse
6.2mile/h
Transmission Gear - Fourth
10.5mile/h
Transmission Gear - First
3.4mile/h
Transmission Gear - Fifth
14.1mile/h
Transmission Gear - Eighth
34.7mile/h

Safety Criteria Compliance Standards

Steering System
ISO 5010:2007
Seat Belt
SAE J386:FEB2006
Rollover Protection Structure (ROPS)
ISO 3471:2008 for up to 21 282 kg (46,919 lb)
Reverse Alarm
ISO 9533:2010
Falling Object Protective Structure (FOPS)
ISO 3449:2005 Level II
Brakes
Brakes ISO 3450:2011

Cab

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

Service Refill Capacities

Transmission System
29gal (US)
Hydraulic System
37.5gal (US)
Fuel Tank
231gal (US)
Crankcase - Tractor
13.7gal (US)
Cooling System
19.8gal (US)

Engine

Flywheel Power - Tractor
570HP
Emissions
Cat C18 ACERT engine meets U.S. EPA Tier 2/EU Stage II Equivalent emission standards.
Engine Model - Tractor
Cat C18 ACERT™
Rated Engine RPM - Tractor
1900r/min

General

Width - Cut
11.5ft
Top Speed - Loaded
34.7mile/h
Tires - Tractor
37.25R35**E3
Tires - Scraper
37.25R35**E3
Scraper Capacity - Struck
24yd³
Scraper Capacity - Heaped
34yd³
Rated Load
37 200 kg (82,200 lb); 37.2 tonnes (41.1 tons)
Overall Shipping Height
12.75ft
Overall Width
12.93ft
Maximum Depth of Spread
21.1in
Maximum Depth of Cut
17.7in
Fuel Tank Refill Capacity - Scraper
231gal (US)
180° Curb-to-Curb Turning Width
40.12ft

Tractor Engine

Flywheel Power - Tractor/Scraper
570HP

Push-Pull

Operating Weight - Empty
106430lb
Overall Length - With Bail Down
54.59ft

Non Push-Pull

Operating Weight - Empty
102750lb
Overall Length
49.34ft

Implement Cycle Times

Apron Lower
3.8s
Apron Raise
4s
Bail Lower
2.1s
Bail Raise
1.5s
Bowl Lower
3.5s
Bowl Raise
3.5s
Ejector Extend
8.5s
Ejector Retract
8.5s

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.

Standard Equipment:

Optional Equipment:

    Steering Arrangements
    • Secondary Steering Arrangement
    Integrated Technologies
    • Sequence Assist Arrangement with Payload Estimator
    • Load Assist
    • Cat Grade Control with Load Assist
    • Advanced Tire Spin Reduction
    Other Attachments
    • Camera arrangement – Work Area Vision System (WAVS)
    • Cab beacon
    • Air horn
    • Air horn and beacon
    • Fender, scraper
    • Guard, overflow
    • Wiring group
    • Push Pull
    • Year of manufacture plate
    Service Instructions
    • Film arrangement – International (ISO)