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
Engine
Maximum Power
407 mm H2O
304 kg/mm
Tractor
Cat® C13 ACERT™
Tractor Engine
Flywheel Power - Tractor/Scraper
304 kW (407 hp)
Scraper Bowl
Scraper Capacity - Heaped
24 yd³
18.3 m³
Rated Load
57600 lb
26127 null
Heaped Capacity
24 yd³
18.3 m³
Maximum Apron Closure Force
50580 lb
225 kN
Maximum Apron Opening
69.6 in
1767 mm
Maximum Depth of Cut
12.4 in
315 mm
Maximum Depth of Spread
21.3 in
540 mm
Maximum Ground Clearance at Cutting Edge
23.4 in
594 mm
Maximum Hydraulic Penetration Force
130390 lb
580 kN
Struck Capacity
17.1 yd³
13 m³
Thickness - Cutting Edge
0.9 in
22 mm
Width - Cut - Outside Router Bits
123.5 in
3136 mm
Transmission
Top Speed - Loaded
33.5 mile/h
53.9 km/h
1 Forward
3.1 mile/h
5 km/h
2 Forward
5.5 mile/h
8.9 km/h
3 Forward
7.5 mile/h
12.1 km/h
4 Forward
10.1 mile/h
16.3 km/h
5 Forward
13.6 mile/h
21.9 km/h
6 Forward
18.4 mile/h
29.6 km/h
7 Forward
24.8 mile/h
39.9 km/h
8 Forward
33.5 mile/h
53.9 km/h
Reverse
5.7 mile/h
9.2 km/h
Hydraulics
Cushion Hitch Circuit Flow
10.6 gal/min
40.1 l/min
Cushion Hitch Cylinder Bore
5.5 in
140 mm
Cushion Hitch Cylinder Stroke
9.9 in
251 mm
Push/Pull Bail Cylinder Bore
3.5 in
90 mm
Push/Pull Bail Cylinder Stroke
16.3 in
415 mm
Scraper Circuit Flow
66 gal/min
250 l/min
Secondary Steering Circuit Flow
10.3 gal/min
39 l/min
Steering Circuit Flow
61.8 gal/min
234 l/min
Steering Cylinder - Bore
5 in
127 mm
Steering Cylinder - Stroke
44.4 in
1128 mm
Bowl Cylinder Bore
5.5 in
140 mm
Bowl Cylinder Stroke
33.3 in
845 mm
Apron Cylinder Bore
5.9 in
150 mm
Apron Cylinder Stroke
22.2 in
565 mm
Ejector Cylinder Bore
5.5 in
140 mm
Ejector Cylinder Stroke
61 in
1550 mm
Steering
Steering Angle - Right
85º
Steering Angle - Left
82º
Service Refill Capacities - Tractor
Engine Crankcase
8.75 gal (US)
33 l
Windshield Washer Reservoir
1.3 gal (US)
5 l
Transmission
18.5 gal (US)
70 l
Differential
45.8 gal (US)
173 l
Final Drive - Each
5 gal (US)
19 l
Cooling System
17 gal (US)
64 l
Hydraulic Reservoir
22 gal (US)
83 l
Service Refill Capacities - Scraper
Fuel Tank
201.6 gal (US)
763 l
Non-Powered Wheel
1.1 gal (US)
4 l
Standards
Standards
Standards
Tractor Engine - U.S. EPA Tier 4 Interim/EU Stage IIIB
Bore
5.1 in
130 mm
Displacement
763 in³
12.5 l
Maximum Power - All Gears - ISO 14396
407 mm H2O
304 kg/mm
Maximum Power Reference Engine Speed
1700 r/min
1700 r/min
Stroke
6.2 in
157 mm
Tractor Engine
Cat® C13 ACERT™
Tractor Engine - Prior U.S. EPA Tier 3/EU Stage IIIA Configuration*
Bore
5.1 in
130 mm
Displacement
763 in³
12.5 l
Maximum Power - All Gears - ISO 14396
407 mm H2O
304 kg/mm
Maximum Power Reference Engine Speed
1700 r/min
1700 r/min
Stroke
6.2 in
157 mm
Tractor Engine
Cat® C13 ACERT™
Weights - Machines Meeting U.S. EPA Tier 4 Interim/EU Stage IIIB Emission Standards
Push-Pull - Loaded - Based on a Rated Load
141141 lb
63567 null
Push-Pull - Operating Weight - Full Fuel Tanks
82541 lb
37440 null
Push-Pull - Shipping Weight - 10% Fuel
81090 lb
36782 null
Standard - Loaded, Based on a Rated Load
137374 lb
62312 null
Standard - Operating Weight - Full Fuel Tanks
79774 lb
36185 null
Standard - Shipping Weight - 10% fuel
78279 lb
35507 null
Weights - Machines Achieving Prior U.S. EPA Tier 3/EU Stage IIIA Emission Levels
Push-Pull - Loaded - Based on a Rated Load
135597 lb
63320 null
Push-Pull - Operating Weight - Full Fuel Tanks
81996 lb
37193 null
Push-Pull - Shipping Weight - 10% Fuel
80502 lb
36515 null
Standard - Loaded, Based on a Rated Load
136830 lb
62065 null
Standard - Operating Weight - Full Fuel Tanks
79230 lb
35938 null
Standard - Shipping Weight - 10% fuel
77735 lb
35260 null
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

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