Wheel Tractor-Scrapers

621K Wheel Tractor-Scraper

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Specification Summary

Flywheel Power - Tractor/Scraper
304 kW (407 hp)
Scraper Capacity - Heaped
24 yd³
Top Speed - Loaded
33.5 mile/h
Width - Overall Machine
141.1 in
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General

180° Curb-to-Curb Turning Width
38.71 ft
Fuel Tank Refill Capacity - Scraper
201 gal (US)
Maximum Depth of Cut
12.4 in
Maximum Depth of Spread
21.3 in
Overall Shipping Height
13.22 ft
Overall Width
11.71 ft
Rated Load
26 127 kg (57,610 lb); 26.19 tonnes (28.81 tons)
Scraper Capacity - Heaped
24 yd³
Scraper Capacity - Struck
17.1 yd³
Tires - Scraper
33.25R29**E3
Tires - Tractor Drive
33.25R29**E3
Top Speed - Loaded
33.5 mile/h
Width - Cut
10.3 ft

Engine

Flywheel Power - Tractor
407 HP
Note
Cat C13 ACERT engine meets U.S. Environmental Protection Agency (EPA) Tier 4 Final/EU Stage IV engine emission standards.
Engine Model - Tractor
Cat C13 ACERT™
Rated Engine RPM - Tractor
2000 r/min

Tractor Engine

Flywheel Power - Tractor/Scraper
304 kW (407 hp)

Scraper Bowl

Scraper Capacity - Heaped
24 yd³

Transmission

Top Speed - Loaded
33.5 mile/h

Service Refill Capacities

Cooling System
11.89 gal (US)
Crankcase
8.08 gal (US)
Diesel Exhaust Fluid
8.057 gal (US)
Fuel Tank
216.09 gal (US)
Hydraulic System
21.926 gal (US)
Transmission System
24.76 gal (US)

Dimensions

Width - Overall Machine
141.1 in
Width - Tractor
133.1 in
Width - Inside of Bowl
120 in
Width - Outside Rear Tires
128.9 in
Height - Overall Shipping
158.6 in
Height - Top of Cab
142.2 in
Ground Clearance - Tractor
21.9 in
Front of Tractor to Front Axle
122.8 in
Axle to Vertical Hitch Pin
21.3 in
Height - Scraper Blade Maximum
20.5 in
Wheel Base
314.9 in
Rear Axle - Rear of Machine
114.1 in
Length - Overall Machine - Standard
551.8 in
Width - Overall Machine - Ladder Down
149.2 in
Width - Rear Tire Centers
90.2 in
Length - Maximum (Push-Pull)
613.2 in

Non Push-Pull

Operating Weight - Empty
79787 lb
Overall Length
45.9 ft

Push-Pull

Operating Weight - Empty
80630 lb
Overall Length - With Bail Down
51.1 ft

Cab

Exterior Sound Level
The exterior sound power level for the standard machine (ISO 6393) is 111.5 dB(A).
ROPS/FOPS
Meets SAE and ISO standards

Safety Criteria Compliance Standards

Brakes
ISO 3450:1996
Falling Object Protective Structure (FOPS)
ISO 3449:2005 Level II
Reverse Alarm
ISO 9533:2010
Rollover Protection Structure (ROPS)
ISO 3471:2008 for up to 17 084 kg (37,664 lb)
Seat Belt
SAE J386:JUN1985
Steering System
ISO 5010:2007

Travel Speeds - Runout

Transmission Gear - Eighth
33.5 mile/h
Transmission Gear - Fifth
13.6 mile/h
Transmission Gear - First
3.1 mile/h
Transmission Gear - Fourth
10.1 mile/h
Transmission Gear - Reverse
5.7 mile/h
Transmission Gear - Second
5.5 mile/h
Transmission Gear - Seventh
24.8 mile/h
Transmission Gear - Sixth
18.4 mile/h
Transmission Gear - Third
7.5 mile/h

Implement Cycle Times

Apron Lower
3.8 s
Apron Raise
2.95 s
Bail Lower
3.2 s
Bail Raise
1.8 s
Bowl Lower
3.5 s
Bowl Raise
3 s
Ejector Extend
5.2 s
Ejector Retract
6.7 s
180° Curb-to-Curb Turning Width
38.71 ft
Fuel Tank Refill Capacity - Scraper
201 gal (US)
Maximum Depth of Cut
12.4 in
Maximum Depth of Spread
21.3 in
Overall Shipping Height
13.22 ft
Overall Width
11.71 ft
Rated Load
26 127 kg (57,610 lb); 26.19 tonnes (28.81 tons)
Scraper Capacity - Heaped
24 yd³
Scraper Capacity - Struck
17.1 yd³
Tires - Scraper
33.25R29**E3
Tires - Tractor Drive
33.25R29**E3
Top Speed - Loaded
33.5 mile/h
Width - Cut
10.3 ft
Flywheel Power - Tractor
407 HP
Note
Cat C13 ACERT engine meets U.S. Environmental Protection Agency (EPA) Tier 4 Final/EU Stage IV engine emission standards.
Engine Model - Tractor
Cat C13 ACERT™
Rated Engine RPM - Tractor
2000 r/min
Flywheel Power - Tractor/Scraper
304 kW (407 hp)
Scraper Capacity - Heaped
24 yd³
Top Speed - Loaded
33.5 mile/h
Cooling System
11.89 gal (US)
Crankcase
8.08 gal (US)
Diesel Exhaust Fluid
8.057 gal (US)
Fuel Tank
216.09 gal (US)
Hydraulic System
21.926 gal (US)
Transmission System
24.76 gal (US)
Width - Overall Machine
141.1 in
Width - Tractor
133.1 in
Width - Inside of Bowl
120 in
Width - Outside Rear Tires
128.9 in
Height - Overall Shipping
158.6 in
Height - Top of Cab
142.2 in
Ground Clearance - Tractor
21.9 in
Front of Tractor to Front Axle
122.8 in
Axle to Vertical Hitch Pin
21.3 in
Height - Scraper Blade Maximum
20.5 in
Wheel Base
314.9 in
Rear Axle - Rear of Machine
114.1 in
Length - Overall Machine - Standard
551.8 in
Width - Overall Machine - Ladder Down
149.2 in
Width - Rear Tire Centers
90.2 in
Length - Maximum (Push-Pull)
613.2 in
Operating Weight - Empty
79787 lb
Overall Length
45.9 ft
Operating Weight - Empty
80630 lb
Overall Length - With Bail Down
51.1 ft
Exterior Sound Level
The exterior sound power level for the standard machine (ISO 6393) is 111.5 dB(A).
ROPS/FOPS
Meets SAE and ISO standards
Brakes
ISO 3450:1996
Falling Object Protective Structure (FOPS)
ISO 3449:2005 Level II
Reverse Alarm
ISO 9533:2010
Rollover Protection Structure (ROPS)
ISO 3471:2008 for up to 17 084 kg (37,664 lb)
Seat Belt
SAE J386:JUN1985
Steering System
ISO 5010:2007
Transmission Gear - Eighth
33.5 mile/h
Transmission Gear - Fifth
13.6 mile/h
Transmission Gear - First
3.1 mile/h
Transmission Gear - Fourth
10.1 mile/h
Transmission Gear - Reverse
5.7 mile/h
Transmission Gear - Second
5.5 mile/h
Transmission Gear - Seventh
24.8 mile/h
Transmission Gear - Sixth
18.4 mile/h
Transmission Gear - Third
7.5 mile/h
Apron Lower
3.8 s
Apron Raise
2.95 s
Bail Lower
3.2 s
Bail Raise
1.8 s
Bowl Lower
3.5 s
Bowl Raise
3 s
Ejector Extend
5.2 s
Ejector Retract
6.7 s