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631 - Tier 2
631 Open Bowl Scraper
631 Open Bowl Scraper
631 Open Bowl Scraper
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631 - Tier 2
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631 - Tier 2
631 - Tier 2
Open Bowl Scrapers
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.
Emissions
Cat® C18 engine meets U.S. EPA Tier 2/EU Stage II Equivalent emission standards.
Engine Model - Tractor
Cat® C18
Rated Engine RPM - Tractor
1900 r/min/1900 r/min
Flywheel Power - Tractor
570 hp/425 kW
Key Features
Be More Productive
Work in Comfort
Designed for Safety
Easy to Operate
Integrated Cat Technologies
Execute Efficiency
Specifications
Metric
|
Imperial
Engine 
Emissions
Cat® C18 engine meets U.S. EPA Tier 2/EU Stage II Equivalent emission standards.
Engine Model - Tractor
Cat® C18
Rated Engine RPM - Tractor
1900 r/min
1900 r/min
Flywheel Power - Tractor
570 hp
425 kW
General
Overall Width
12.93 ft
3.94 m
Overall Shipping Height
12.75 ft
3.89 m
Scraper Capacity - Struck
24 yd³
18.3 m³
Scraper Capacity - Heaped
34 yd³
26 m³
Rated Load
37 200 kg (82,200 lb); 37.2 tonnes (41.1 tons)
Width - Cut
11.50 ft
3.51 m
Maximum Depth of Cut
17.7 in
450 mm
Maximum Depth of Spread
21.1 in
535 mm
Top Speed - Loaded
34.7 mile/h
55.8 km/h
180° Curb-to-Curb Turning Width
40.12 ft
12.23 m
Tires - Tractor
37.25R35**E3
Tires - Scraper
37.25R35**E3
Fuel Tank Refill Capacity - Scraper
231 gal (US)
874 l
Tractor Engine
Flywheel Power - Tractor/Scraper
570 hp
425 kW
Scraper Bowl
Scraper Capacity - Heaped
34 yd³
26 m³
Transmission
Top Speed - Loaded
34.7 mile/h
55.8 km/h
Travel Speeds - Runout
Transmission Gear - First
3.4 mile/h
5.5 km/h
Transmission Gear - Second
6.2 mile/h
10.0 km/h
Transmission Gear - Third
7.7 mile/h
12.4 km/h
Transmission Gear - Fourth
10.5 mile/h
16.9 km/h
Transmission Gear - Fifth
14.1 mile/h
22.7 km/h
Transmission Gear - Sixth
19.0 mile/h
30.6 km/h
Transmission Gear - Seventh
25.7 mile/h
41.4 km/h
Transmission Gear - Eighth
34.7 mile/h
55.8 km/h
Transmission Gear - Reverse
6.2 mile/h
9.9 km/h
Service Refill Capacities
Real Wheels (Each)
2.37 gal (US)
9.0 l
Crankcase - Tractor
13.7 gal (US)
52 l
Transmission System
29 gal (US)
110 l
Cooling System
18.75 gal (US)
71 l
Fuel Tank
231 gal (US)
874 l
Hydraulic System
37.5 gal (US)
142 l
Diesel Exhaust Fluid (DEF)
8 gal(US)/d
30.5 l
Service Refill Capacities - Tractor
Windshield Washer Reservoir
1.3 gal (US)
5.0 l
Differential
40.41 gal (US)
153.0 l
Service Refill Capacities - Scraper
Final Drive - Each
8.71 gal (US)
33.0 l
Dimensions
Width - Overall Machine
155 in
3937 mm
Width - Overall Machine - Ladder Down
159.3 in
4045 mm
Width - Tractor
144.2 in
3662 mm
Width - Rear Tire Centers
96.9 in
2462 mm
Width - Inside of Bowl
134 in
3404 mm
Width - Outside Bowl - Shipping Width
143.1 in
3635 mm
Height - Overall Shipping
153.2 in
3892 mm
Height - Top of Cab
149.8 in
3805 mm
Front of Tractor to Front Axle
142.0 in
3608 mm
Ground Clearance - Tractor
26.1 in
664 mm
Axle to Vertical Hitch Pin
20 in
509 mm
Height - Scraper Blade Maximum
20 in
510 mm
Wheel Base
346.8 in
8808 mm
Length - Overall Machine - Standard
597 in
15164 mm
Length - Maximum (Push-Pull)
655.1 in
16640 mm
Rear Axle - Rear of Machine
108 in
2744 mm
Width - Outside Rear Tires
143.2 in
3636 mm
Non Push-Pull
Operating Weight - Empty
102750 lb
46600 kg
Overall Length
49.34 ft
15.04 m
Push-Pull
Overall Length - With Bail Down
54.59 ft
16.64 m
Operating Weight - Empty
102750 lb
46600 kg
Cab
Exterior Sound Level
The exterior sound power level for the standard machine (ISO 6393) is 116 dB(A).
ROPS/FOPS
ROPS/FOPS meet “ISO Standards.”
Safety Criteria Compliance Standards
Steering System
ISO 5010:2007
Falling Object Protective Structure (FOPS)
ISO 3449:2005 Level II
Rollover Protection Structure (ROPS)
ISO 3471:2008 for up to 21 282 kg (46,919 lb)
Seat Belt
SAE J386:FEB2006
Reverse Alarm
ISO 9533:2010
Brakes
Brakes ISO 3450:2011
Implement Cycle Times
Bowl Raise
3.5 s
3.5 s
Bowl Lower
3.5 s
3.5 s
Apron Raise
4.0 s
4.0 s
Apron Lower
3.8 s
3.8 s
Ejector Extend
8.5 s
8.5 s
Ejector Retract
8.5 s
8.5 s
Bail Raise
1.5 s
1.5 s
Bail Lower
2.1 s
2.1 s
Equipment
Standard Equipment
Optional Equipment
