621K Wheel Tractor-Scraper

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Product Description

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.

Specifications
Us
Metric
General
180° Curb-to-Curb Turning Width
38.71 ft
11.8 m
Fuel Tank Refill Capacity - Scraper
201 gal (US)
763 l
Maximum Depth of Cut
12.4 in
315 mm
Maximum Depth of Spread
21.3 in
540 mm
Overall Shipping Height
13.22 ft
4.03 m
Overall Width
11.71 ft
3.57 m
Rated Load
26 127 kg (57,610 lb); 26.19 tonnes (28.81 tons)
Scraper Capacity - Heaped
24 yd³
18.4 m³
Scraper Capacity - Struck
17.1 yd³
13 m³
Tires - Scraper
33.25R29**E3
Tires - Tractor Drive
33.25R29**E3
Top Speed - Loaded
33.5 mile/h
53.9 km/h
Width - Cut
10.3 ft
3.14 m
Engine
Engine Model - Tractor
Cat C13 ACERT™
Flywheel Power - Tractor
407 HP
304 kW
Note
Cat C13 ACERT engine meets U.S. Environmental Protection Agency (EPA) Tier 4 Final/EU Stage IV engine emission standards.
Rated Engine RPM - Tractor
2000 r/min
2000 r/min
Tractor Engine
Flywheel Power - Tractor/Scraper
304 kW (407 hp)
Scraper Bowl
Scraper Capacity - Heaped
24 yd³
18.4 m³
Transmission
Top Speed - Loaded
33.5 mile/h
53.9 km/h
Service Refill Capacities
Cooling System
11.89 gal (US)
45 l
Crankcase
8.08 gal (US)
30.58 l
Diesel Exhaust Fluid
8.057 gal (US)
30.5 l
Fuel Tank
216.09 gal (US)
818 l
Hydraulic System
21.926 gal (US)
83 l
Transmission System
24.76 gal (US)
93 l
Dimensions
Width - Overall Machine
141.1 in
3585 mm
Width - Tractor
133.1 in
3381 mm
Width - Inside of Bowl
120 in
3048 mm
Width - Outside Rear Tires
128.9 in
3275 mm
Height - Overall Shipping
158.6 in
4029 mm
Height - Top of Cab
142.2 in
3612 mm
Ground Clearance - Tractor
21.9 in
557 mm
Front of Tractor to Front Axle
122.8 in
3119 mm
Axle to Vertical Hitch Pin
21.3 in
540 mm
Height - Scraper Blade Maximum
20.5 in
520 mm
Wheel Base
314.9 in
7998 mm
Rear Axle - Rear of Machine
114.1 in
2898 mm
Length - Maximum (Push-Pull)
613.2 in
15576 mm
Length - Overall Machine - Standard
551.8 in
14015 mm
Width - Overall Machine - Ladder Down
149.2 in
3790 mm
Width - Rear Tire Centers
90.2 in
2290 mm
Non Push-Pull
Operating Weight - Empty
79787 lb
36185 kg
Overall Length
45.9 ft
14.02 m
Push-Pull
Operating Weight - Empty
80630 lb
36567 kg
Overall Length - With Bail Down
51.1 ft
15.58 m
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
53.9 km/h
Transmission Gear - Fifth
13.6 mile/h
21.9 km/h
Transmission Gear - First
3.1 mile/h
5 km/h
Transmission Gear - Fourth
10.1 mile/h
16.3 km/h
Transmission Gear - Reverse
5.7 mile/h
9.2 km/h
Transmission Gear - Second
5.5 mile/h
8.9 km/h
Transmission Gear - Seventh
24.8 mile/h
39.9 km/h
Transmission Gear - Sixth
18.4 mile/h
29.6 km/h
Transmission Gear - Third
7.5 mile/h
12.1 km/h
Implement Cycle Times
Apron Lower
3.8 s
3.8 s
Apron Raise
2.95 s
2.95 s
Bail Lower
3.2 s
3.2 s
Bail Raise
1.8 s
1.8 s
Bowl Lower
3.5 s
3.5 s
Bowl Raise
3 s
3 s
Ejector Extend
5.2 s
5.2 s
Ejector Retract
6.7 s
6.7 s
Standard/Optional

Standard Equipment

POWER TRAIN - TRACTOR
POWER TRAIN - SCRAPER
ELECTRICAL - TRACTOR
ELECTRICAL - SCRAPER
OPERATOR ENVIRONMENT - TRACTOR
FLUIDS
OTHER STANDARD EQUIPMENT - TRACTOR
OTHER STANDARD EQUIPMENT - SCRAPER

Optional Equipment

STEERING ARRANGEMENTS
INTEGRATED TECHNOLOGIES
OTHER ATTACHMENTS
WORK LIGHT ATTACHMENTS
AMBIENT CAPABILITY ARRANGEMENTS
SERVICE INSTRUCTIONS

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