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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.
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
Key Features
Be More Productive
Work in Comfort
Designed for Safety
Easy to Operate
Integrated Cat Technologies
Execute Efficiency
Specifications
Metric
|
Imperial
General 
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
Rated Load
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
Engine
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.
Engine Model - Tractor
Cat C18
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
Service Refill Capacities
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
Dimensions
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
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
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).
Safety Criteria Compliance Standards
Falling Object Protective Structure (FOPS)
ISO 3449:2005 Level II
Seat Belt
SAE J386:FEB2006
Steering System
ISO 5010:2007
Rollover Protection Structure (ROPS)
ISO 3471:2008 for up to 21 282 kg (46,919 lb)
Reverse Alarm
ISO 9533:2010
Brakes
Brakes ISO 3450:2011
Travel Speeds - Runout
Transmission Gear - Seventh
25.7 mile/h
41.4 km/h
Transmission Gear - Sixth
19.0 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
10.0 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
Implement Cycle Times
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
4.0 s
4.0 s
Apron Lower
3.8 s
3.8 s
Equipment
Standard Equipment
Optional Equipment
Emissions
Cat® C18 engine meets U.S. EPA Tier 2/EU Stage II Equivalent emission standards.
Engine Model - Tractor
Cat® C18