621H Wheel Tractor-Scraper

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
Tractor Engine
Flywheel Power: Tractor/Scraper
304 kW (407 hp)
Scraper Bowl
Scraper Capacity: Heaped
24.0 yd3
18.3 m3
Rated Load
57600.0 lb
26127.0 kg
Heaped Capacity
24.0 yd3
18.3 m3
Maximum Apron Closure Force
50580.0 lb
225.0 kN
Maximum Apron Opening
69.6 in
1767.0 mm
Maximum Depth of Cut
12.4 in
315.0 mm
Maximum Depth of Spread
21.3 in
540.0 mm
Maximum Ground Clearance at Cutting Edge
23.4 in
594.0 mm
Maximum Hydraulic Penetration Force
130390.0 lb
580.0 kN
Struck Capacity
17.1 yd3
13.0 m3
Thickness of Cutting Edge
0.9 in
22.0 mm
Width of Cut, Outside Router Bits
123.5 in
3136.0 mm
Transmission
Top Speed (Loaded)
33.5 mph
53.9 km/h
1 Forward
3.1 mph
5.0 km/h
2 Forward
5.5 mph
8.9 km/h
3 Forward
7.5 mph
12.1 km/h
4 Forward
10.1 mph
16.3 km/h
5 Forward
13.6 mph
21.9 km/h
6 Forward
18.4 mph
29.6 km/h
7 Forward
24.8 mph
39.9 km/h
8 Forward
33.5 mph
53.9 km/h
Reverse
5.7 mph
9.2 km/h
Engine
Max. Power
407.0 hp
304.0 kW
Tractor
Cat® C13 ACERT™
Tractor Engine - U.S. EPA Tier 4 Interim/EU Stage IIIB
Bore
5.1 in
130.0 mm
Displacement
763.0 in3
12.5 L
Max. Power (All Gears) (ISO 14396)
407.0 hp
304.0 kW
Max. Power Reference Engine Speed
1700.0 RPM
1700.0 RPM
Stroke
6.2 in
157.0 mm
Tractor Engine
Cat® C13 ACERT™
Tractor Engine - Prior U.S. EPA Tier 3/EU Stage IIIA configuration*
Bore
5.1 in
130.0 mm
Displacement
763.0 in3
12.5 L
Max. Power (All Gears) (ISO 14396)
407.0 hp
304.0 kW
Max. Power Reference Engine Speed
1700.0 RPM
1700.0 RPM
Stroke
6.2 in
157.0 mm
Tractor Engine
Cat® C13 ACERT™
Service Refill Capacities - Scraper
Fuel Tank
201.6 gal
763.0 L
Non-Powered Wheel
1.1 gal
4.0 L
Service Refill Capacities - Tractor
Engine Crankcase
8.75 gal
33.0 L
Windshield Washer Reservoir
1.3 gal
5.0 L
Transmission
18.5 gal
70.0 L
Differential
45.8 gal
173.0 L
Final Drive (per side)
5.0 gal
19.0 L
Cooling System
17.0 gal
64.0 L
Hydraulic Reservoir
22.0 gal
83.0 L
Weights - Machines meeting U.S. EPA Tier 4 Interim/EU Stage IIIB emission standards
Push-Pull - Loaded, based on a rated load
141141.0 lb
63567.0 kg
Push-Pull - Operating Weight - full fuel tanks
82541.0 lb
37440.0 kg
Push-Pull - Shipping Weight - 10% fuel
81090.0 lb
36782.0 kg
Standard - Loaded, based on a rated load
137374.0 lb
62312.0 kg
Standard - Operating Weight - full fuel tanks
79774.0 lb
36185.0 kg
Standard - Shipping Weight - 10% fuel
78279.0 lb
35507.0 kg
Standards
Standards
Standards
Steering
Steering Angle - Right
85º
Steering Angle - Left
82º
Weights - Machines achieving prior U.S. EPA Tier 3/EU Stage IIIA emission levels
Push-Pull - Loaded, based on a rated load
135597.0 lb
63320.0 kg
Push-Pull - Operating Weight - full fuel tanks
81996.0 lb
37193.0 kg
Push-Pull - Shipping Weight - 10% fuel
80502.0 lb
36515.0 kg
Standard - Loaded, based on a rated load
136830.0 lb
62065.0 kg
Standard - Operating Weight - full fuel tanks
79230.0 lb
35938.0 kg
Standard - Shipping Weight - 10% fuel
77735.0 lb
35260.0 kg
Hydraulics
Cushion Hitch Circuit Flow
10.6 gal/min
40.1 L/min
Cushion Hitch Cylinder Bore
5.5 in
140.0 mm
Cushion Hitch Cylinder Stroke
9.9 in
251.0 mm
Push/Pull Bail Cylinder Bore
3.5 in
90.0 mm
Push/Pull Bail Cylinder Stroke
16.3 in
415.0 mm
Scraper Circuit Flow
66.0 gal/min
250.0 L/min
Secondary Steering Circuit Flow
10.3 gal/min
39.0 L/min
Steering Circuit Flow
61.8 gal/min
234.0 L/min
Steering Cylinder Bore
5.0 in
127.0 mm
Steering Cylinder Stroke
44.4 in
1128.0 mm
Bowl Cylinder Bore
5.5 in
140.0 mm
Bowl Cylinder Stroke
33.3 in
845.0 mm
Apron Cylinder Bore
5.9 in
150.0 mm
Apron Cylinder Stroke
22.2 in
565.0 mm
Ejector Cylinder Bore
5.5 in
140.0 mm
Ejector Cylinder Stroke
61.0 in
1550.0 mm
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

Push-pull arrangement
Sequence Assist
Load Assist
Cat Grade Control
Secondary Steering
Fender extension, scraper
Powered access ladder
Cat Active Ride Management (ARM) seat
Fast fuel fill
HID Work lights
Low ambient fluids -51° C (-61° F)
Work Area Vision System (WAVS) - three cameras showing right side, cutting edge and directly behind machine, display in cab
External steering lock
Cab precleaner
Cab rotating beacon
Air horn

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