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Quick loading, high travel speeds and the ability to load and dump on the run yield fast cycle times, allowing Cat Wheel Tractor-Scrapers to consistently deliver high productivity at the lowest cost per ton.

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General
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Tires - Scraper 37.25R35**E3 37.25R35**E3
Rated Load 37 200 kg (82,200 lb); 37.2 tonnes (41.1 tons) 37 200 kg (82,200 lb); 37.2 tonnes (41.1 tons)
Scraper Capacity - Struck 24.0 yd³ 18.3 m³
Tires - Tractor 37.25R35**E3 37.25R35**E3
Maximum Depth of Cut 17.7 in 450.0 mm
Width - Cut 11.5 ft 3.51 m
Scraper Capacity - Heaped 34.0 yd³ 26.0 m³
Overall Width 12.93 ft 3.94 m
Top Speed - Loaded 34.7 mile/h 55.8 km/h
Fuel Tank Refill Capacity - Scraper 231.0 gal (US) 874.0 l
Overall Shipping Height 12.75 ft 3.89 m
180° Curb-to-Curb Turning Width 40.12 ft 12.23 m
Maximum Depth of Spread 21.1 in 535.0 mm

EFFICIENCY THROUGH TECHNOLOGY

  • 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) 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.
  • Machine Speed Limit 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) 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.
  • 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.
  • Cat Grade Control (Optional) 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.

OPERATOR COMFORT AND CONTROL

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

BUILT-IN SAFETY FEATURES

  • 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.

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.

631K Standard Equipment

NOTE
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  • Standard and optional equipment may vary. Consult your Cat dealer for details.

631K Optional Equipment

NOTE
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  • Standard and optional equipment may vary. Consult your Cat dealer for details.