Wheel Tractor-Scrapers

Compare Models

631 - Tier 2
631 - Tier 2
  • 621
  • 637
637
  • 621
  • 631 - Tier 2
621
  • 631 - Tier 2
  • 637
UNITS:
Metric
Imperial
Scraper Capacity - Heaped
26 m³
34 yd³
 
26 m³
34 yd³
 
18.4 m³
24 yd³
Overall Width
3.94 m
12.93 ft
 
3.94 m
12.93 ft
 
3.57 m
11.71 ft
Maximum Depth of Cut
450 mm
17.7 in
 
450 mm
17.7 in
 
315 mm
12.4 in
180° Curb-to-Curb Turning Width
12.23 m
40.12 ft
 
12.23 m
40.12 ft
 
11.8 m
38.71 ft
Maximum Depth of Spread
535 mm
21.1 in
 
535 mm
21.1 in
 
540 mm
21.3 in
Scraper Capacity - Struck
18.3 m³
24 yd³
 
18.3 m³
24 yd³
 
13 m³
17.1 yd³
Top Speed - Loaded
55.8 km/h
34.7 mile/h
 
55.8 km/h
34.7 mile/h
 
53.9 km/h
33.5 mile/h
Width - Cut
3.51 m
11.5 ft
 
3.51 m
11.5 ft
 
3.14 m
10.3 ft
Fuel Tank Refill Capacity - Scraper
874 l
231 gal (US)
 
1400 l
370 gal (US)
 
763 l
201 gal (US)
Tires - Scraper
37.25R35**E3
37.25R35**E3
 
37.25R35**E3
37.25R35**E3
 
33.25R29**E3
33.25R29**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)
 
37 200 kg (82,200 lb); 37.2 tonnes (41.1 tons)
37 200 kg (82,200 lb); 37.2 tonnes (41.1 tons)
 
26 127 kg (57,610 lb); 26.19 tonnes (28.81 tons)
26 127 kg (57,610 lb); 26.19 tonnes (28.81 tons)
Overall Shipping Height
3.89 m
12.75 ft
 
4.15 m
13.62 ft
 
4.03 m
13.22 ft
Tires - Tractor
37.25R35**E3
37.25R35**E3
 
37.25R35**E3
37.25R35**E3
 
-
Tires - Tractor Drive
-
 
-
 
33.25R29**E3
33.25R29**E3
Flywheel Power - Tractor
425 kW
570 hp
 
425 kW
570 hp
 
304 kW
407 hp
Rated Engine RPM - Tractor
1900 r/min
1900 r/min
 
1900 r/min
1900 r/min
 
2000 r/min
2000 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.
 
Cat C9.3 and C18 engines meet U.S. EPA Tier 2/EU Stage II Equivalent emission standards.
Cat C9.3 and C18 engines meet U.S. EPA Tier 2/EU Stage II Equivalent emission standards.
 
-
Engine Model - Tractor
Cat C18
Cat C18
 
Cat C18
Cat C18
 
Cat C13
Cat C13
Engine Model - Scraper
-
 
Cat C9.3 ACERT
Cat C9.3 ACERT
 
-
Rated Engine RPM - Scraper
-
 
2150 r/min
2150 r/min
 
-
Flywheel Power - Scraper
-
 
216 kW
290 hp
 
-
Note
-
 
-
 
C13 engine emits equivalent to U.S. EPA Tier 2/EU Stage II or U.S. EPA Tier 3/EU Stage III.
C13 engine emits equivalent to U.S. EPA Tier 2/EU Stage II or U.S. EPA Tier 3/EU Stage III.
Flywheel Power - Tractor/Scraper
425 kW
570 hp
 
425 kW
570 hp
 
304 kW (407 hp)
304 kW (407 hp)
Scraper Capacity - Heaped
26 m³
34 yd³
 
26 m³
34 yd³
 
18.4 m³
24 yd³
Top Speed - Loaded
55.8 km/h
34.7 mile/h
 
55.8 km/h
34.7 mile/h
 
53.9 km/h
33.5 mile/h
Fuel Tank
874 l
231 gal (US)
 
1400 l
370 gal (US)
 
818 l
216.09 gal (US)
Hydraulic System
142 l
37.5 gal (US)
 
142 l
37.5 gal (US)
 
83 l
21.926 gal (US)
Cooling System
75 l
19.8 gal (US)
 
-
 
45 l
11.89 gal (US)
Crankcase - Tractor
52 l
13.7 gal (US)
 
52 l
13.7 gal (US)
 
-
Transmission System
110 l
29 gal (US)
 
-
 
93 l
24.76 gal (US)
Crankcase - Scraper
-
 
24.5 l
6.5 gal (US)
 
-
Transmission System - Scraper
-
 
49 l
12.9 gal (US)
 
-
Transmission System - Tractor
-
 
110 l
29 gal (US)
 
-
Cooling System - Tractor
-
 
75 l
19.8 gal (US)
 
-
Cooling System - Scraper
-
 
61 l
16.1 gal (US)
 
-
Crankcase
-
 
-
 
30.58 l
8.08 gal (US)
Front of Tractor to Front Axle
3612 mm
142.2 in
 
3612 mm
142.2 in
 
3119 mm
122.8 in
Axle to Vertical Hitch Pin
509 mm
20 in
 
509 mm
20 in
 
540 mm
21.3 in
Wheel Base
8808 mm
346.8 in
 
8808 mm
346.8 in
 
7998 mm
314.9 in
Rear Axle - Rear of Machine
2744 mm
108 in
 
2292 mm
90.2 in
 
2898 mm
114.1 in
Width - Inside of Bowl
3404 mm
134 in
 
3404 mm
134 in
 
3048 mm
120 in
Height - Overall Shipping
3892 mm
153.2 in
 
4145 mm
163.2 in
 
4029 mm
158.6 in
Height - Scraper Blade Maximum
510 mm
20 in
 
510 mm
20 in
 
520 mm
20.5 in
Width - Rear Tire Centers
2462 mm
96.9 in
 
2462 mm
96.9 in
 
2290 mm
90.2 in
Width - Outside Rear Tires
3636 mm
143.2 in
 
3636 mm
143.2 in
 
3275 mm
128.9 in
Length - Overall Machine - Standard
15164 mm
597 in
 
15164 mm
597 in
 
14015 mm
551.8 in
Ground Clearance - Tractor
664 mm
26.1 in
 
664 mm
26.1 in
 
557 mm
21.9 in
Height - Top of Cab
3733 mm
147 in
 
3733 mm
147 in
 
3612 mm
142.2 in
Length - Maximum (Push-Pull)
16640 mm
655.1 in
 
16640 mm
655.1 in
 
15576 mm
613.2 in
Width - Overall Machine
3937 mm
155 in
 
3937 mm
155 in
 
3585 mm
141.1 in
Width - Tractor
3499 mm
137.8 in
 
3499 mm
137.8 in
 
3381 mm
133.1 in
Extended Push Block (Push-Pull)
-
 
2744 mm
108 in
 
-
Width - Overall Machine - Ladder Down
-
 
-
 
3790 mm
149.2 in
Operating Weight - Empty
46600 kg
102750 lb
 
52140 kg
114950 lb
 
36185 kg
79787 lb
Overall Length
15.04 m
49.34 ft
 
15.04 m
49.34 ft
 
14.02 m
45.9 ft
Overall Length - With Bail Down
16.64 m
54.59 ft
 
16.64 m
54.59 ft
 
15.58 m
51.1 ft
Operating Weight - Empty
48275 kg
106430 lb
 
54005 kg
119060 lb
 
36567 kg
80630 lb
ROPS/FOPS
ROPS/FOPS meet “ISO Standards.”
ROPS/FOPS meet “ISO Standards.”
 
ROPS/FOPS meet “ISO Standards.”
ROPS/FOPS meet “ISO Standards.”
 
Meets ISO standards
Meets 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).
 
The exterior sound power level for the standard machine (ISO 6393) is 116 dB(A).
The exterior sound power level for the standard machine (ISO 6393) is 116 dB(A).
 
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
 
ISO 3449:2005 Level II
ISO 3449:2005 Level II
 
ISO 3449:2005 Level II
ISO 3449:2005 Level II
Seat Belt
SAE J386:FEB2006
SAE J386:FEB2006
 
SAE J386:FEB2006
SAE J386:FEB2006
 
SAE J386:JUN1985
SAE J386:JUN1985
Steering System
ISO 5010:2007
ISO 5010:2007
 
ISO 5010:2007
ISO 5010:2007
 
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)
 
ISO 3471:2008 for up to 21 282 kg (46,919 lb)
ISO 3471:2008 for up to 21 282 kg (46,919 lb)
 
ISO 3471:2008 for up to 17 084 kg (37,664 lb)
ISO 3471:2008 for up to 17 084 kg (37,664 lb)
Reverse Alarm
ISO 9533:2010
ISO 9533:2010
 
ISO 9533:2010
ISO 9533:2010
 
ISO 9533:2010
ISO 9533:2010
Brakes
Brakes ISO 3450:2011
Brakes ISO 3450:2011
 
ISO 3450:2011
ISO 3450:2011
 
ISO 3450:2011
ISO 3450:2011
Transmission Gear - Seventh
41.4 km/h
25.7 mile/h
 
41.95 km/h
25.7 mile/h
 
39.9 km/h
24.8 mile/h
Transmission Gear - Sixth
30.6 km/h
19 mile/h
 
30.6 km/h
19 mile/h
 
29.6 km/h
18.4 mile/h
Transmission Gear - Reverse
9.9 km/h
6.2 mile/h
 
9.9 km/h
6.2 mile/h
 
9.2 km/h
5.7 mile/h
Transmission Gear - First
5.5 km/h
3.4 mile/h
 
5.5 km/h
3.4 mile/h
 
5 km/h
3.1 mile/h
Transmission Gear - Third
12.4 km/h
7.7 mile/h
 
12.4 km/h
7.7 mile/h
 
12.1 km/h
7.5 mile/h
Transmission Gear - Second
10 km/h
6.2 mile/h
 
10 km/h
6.2 mile/h
 
8.9 km/h
5.5 mile/h
Transmission Gear - Eighth
55.8 km/h
34.7 mile/h
 
55.8 km/h
34.7 mile/h
 
53.9 km/h
33.5 mile/h
Transmission Gear - Fifth
22.7 km/h
14.1 mile/h
 
22.7 km/h
14.1 mile/h
 
21.9 km/h
13.6 mile/h
Transmission Gear - Fourth
16.9 km/h
10.5 mile/h
 
16.9 km/h
10.5 mile/h
 
16.3 km/h
10.1 mile/h
Ejector Extend
8.5 s
8.5 s
 
8.5 s
8.5 s
 
5.2 s
5.2 s
Bail Raise
1.5 s
1.5 s
 
1.5 s
1.5 s
 
1.8 s
1.8 s
Bowl Raise
3.5 s
3.5 s
 
3.5 s
3.5 s
 
3 s
3 s
Ejector Retract
8.5 s
8.5 s
 
8.5 s
8.5 s
 
6.7 s
6.7 s
Bail Lower
2.1 s
2.1 s
 
2.1 s
2.1 s
 
3.2 s
3.2 s
Bowl Lower
3.5 s
3.5 s
 
3.5 s
3.5 s
 
3.5 s
3.5 s
Apron Raise
4 s
4 s
 
4 s
4 s
 
2.95 s
2.95 s
Apron Lower
3.8 s
3.8 s
 
3.8 s
3.8 s
 
3.8 s
3.8 s
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