Tractor Engine
Flywheel Power - Tractor/Scraper | 570 hp 425 kW |
Ergonomic controls and a newly redesigned cab interior provide a more comfortable and efficient working environment all day long
Improvements in fuel efficiency and the new APECS transmission controls deliver more productivity in most applications
New safety features help operators be more productive and work more efficiently all day long
Key Specs
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.
Ergonomic controls and a newly redesigned cab interior provide a more comfortable and efficient working environment all day long
Improvements in fuel efficiency and the new APECS transmission controls deliver more productivity in most applications
New safety features help operators be more productive and work more efficiently all day long
Flywheel Power - Tractor/Scraper | 570 hp 425 kW |
Scraper Capacity - Heaped | 34 yd³ 26 m³ |
Top Speed - Loaded | 34.7 mile/h 55.8 km/h |
Front of Tractor to Front Axle | 142.2 in 3612 mm |
Axle to Vertical Hitch Pin | 20 in 509 mm |
Wheel Base | 346.8 in 8808 mm |
Rear Axle - Rear of Machine | 108 in 2744 mm |
Width - Inside of Bowl | 134 in 3404 mm |
Height - Overall Shipping | 153.2 in 3892 mm |
Height - Scraper Blade Maximum | 20 in 510 mm |
Width - Rear Tire Centers | 96.9 in 2462 mm |
Width - Outside Rear Tires | 143.2 in 3636 mm |
Length - Overall Machine - Standard | 597 in 15164 mm |
Ground Clearance - Tractor | 26.1 in 664 mm |
Height - Top of Cab | 147 in 3733 mm |
Length - Maximum (Push-Pull) | 655.1 in 16640 mm |
Width - Overall Machine | 155 in 3937 mm |
Width - Tractor | 137.8 in 3499 mm |
Scraper Capacity - Heaped | 34 yd³ 26 m³ |
Overall Width | 12.93 ft 3.94 m |
Maximum Depth of Cut | 17.7 in 450 mm |
180° Curb-to-Curb Turning Width | 40.12 ft 12.23 m |
Maximum Depth of Spread | 21.1 in 535 mm |
Scraper Capacity - Struck | 24 yd³ 18.3 m³ |
Top Speed - Loaded | 34.7 mile/h 55.8 km/h |
Width - Cut | 11.50 ft 3.51 m |
Fuel Tank Refill Capacity - Scraper | 231 gal (US) 874 l |
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) |
Overall Shipping Height | 12.75 ft 3.89 m |
Tires - Tractor | 37.25R35**E3 37.25R35**E3 |
Flywheel Power - Tractor | 570 hp 425 kW |
Rated Engine RPM - Tractor | 1900 r/min 1900 r/min |
Emissions | Cat C18 engine meets U.S. EPA Tier 2/EU Stage II Equivalent emission standards. Cat C18 engine meets U.S. EPA Tier 2/EU Stage II Equivalent emission standards. |
Engine Model - Tractor | Cat C18 Cat C18 |
Fuel Tank | 231 gal (US) 874 l |
Hydraulic System | 37.5 gal (US) 142 l |
Cooling System | 19.8 gal (US) 75 l |
Crankcase - Tractor | 13.7 gal (US) 52 l |
Transmission System | 29 gal (US) 110 l |
Operating Weight - Empty | 102750 lb 46600 kg |
Overall Length | 49.34 ft 15.04 m |
Overall Length - With Bail Down | 54.59 ft 16.64 m |
Operating Weight - Empty | 106430 lb 48275 kg |
ROPS/FOPS | ROPS/FOPS meet “ISO Standards.” ROPS/FOPS meet “ISO Standards.” |
Exterior Sound Level | The 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). |
Falling Object Protective Structure (FOPS) | ISO 3449:2005 Level II ISO 3449:2005 Level II |
Seat Belt | SAE J386:FEB2006 SAE J386:FEB2006 |
Steering System | ISO 5010:2007 ISO 5010:2007 |
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) |
Reverse Alarm | ISO 9533:2010 ISO 9533:2010 |
Brakes | Brakes ISO 3450:2011 Brakes ISO 3450:2011 |
Transmission Gear - Seventh | 25.7 mile/h 41.4 km/h |
Transmission Gear - Sixth | 19 mile/h 30.6 km/h |
Transmission Gear - Reverse | 6.2 mile/h 9.9 km/h |
Transmission Gear - First | 3.4 mile/h 5.5 km/h |
Transmission Gear - Third | 7.7 mile/h 12.4 km/h |
Transmission Gear - Second | 6.2 mile/h 10 km/h |
Transmission Gear - Eighth | 34.7 mile/h 55.8 km/h |
Transmission Gear - Fifth | 14.1 mile/h 22.7 km/h |
Transmission Gear - Fourth | 10.5 mile/h 16.9 km/h |
Ejector Extend | 8.5 s 8.5 s |
Bail Raise | 1.5 s 1.5 s |
Bowl Raise | 3.5 s 3.5 s |
Ejector Retract | 8.5 s 8.5 s |
Bail Lower | 2.1 s 2.1 s |
Bowl Lower | 3.5 s 3.5 s |
Apron Raise | 4 s 4 s |
Apron Lower | 3.8 s 3.8 s |
Caterpillar product brochures and other informational documents are available for your growing business.
631 Open Bowl Scraper
631 Open Bowl Scraper
631 Open Bowl Scraper
Wheel Tractor-Scraper CAT® K Series
Wheel Tractor-Scraper K Series Operator Testimonial
Wheel Tractor Scraper CAT® 631K C202