623H

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
Engine
Flywheel Power - Tractor/Scraper 304 kW (407 hp)
Maximum Power 407 HP
Tractor Cat® C13 ACERT™


Transmission
Top Speed - Loaded 33.5 mile/h
1 Forward 3.1 mile/h
2 Forward 5.5 mile/h
3 Forward 7.5 mile/h
4 Forward 10.1 mile/h
5 Forward 13.6 mile/h
6 Forward 18.4 mile/h
7 Forward 24.8 mile/h
8 Forward 33.5 mile/h
Reverse 5.7 mile/h


Hydraulics
Bowl Cylinder Bore 5.5 in
Bowl Cylinder Stroke 33.3 in
Ejector Cylinder Bore 4.3 in
Ejector Cylinder Stroke 47.8 in
Bowl Floor Cylinder Bore 5.1 in
Bowl Floor Stroke 53.3 in
Cushion Hitch Circuit Flow 10.6 gal/min
Cushion Hitch Cylinder Bore 5.5 in
Cushion Hitch Cylinder Stroke 9.9 in
Elevator Circuit Flow 67.9 gal/min
Scraper Circuit Flow 50.7 gal/min
Secondary Steering Circuit Flow 10.3 gal/min
Steering Circuit Flow 61.8 gal/min
Steering Cylinder - Bore 5 in
Steering Cylinder - Stroke 44.4 in


Scraper Bowl
Scraper Capacity - Heaped 23 yd³
Rated Load 55200 lb
Heaped Capacity 23 yd³
Maximum Depth of Cut 10.3 in
Maximum Depth of Spread 18.3 in
Maximum Ground Clearance at Cutting Edge 20.8 in
Maximum Hydraulic Penetration Force 132640 lb
Struck Capacity 18.8 yd³
Thickness - Cutting Edge 0.9 in
Width - Cut - Outside Router Bits 123.5 in


Steering
Steering Angle - Right 85º
Steering Angle - Left 82º


Standards
Standards Standards


Tractor Engine - U.S. EPA Tier 4 Interim/EU Stage IIIB
Bore 5.1 in
Displacement 763 in³
Maximum Power - All Gears - ISO 14396 407 HP
Maximum Power Reference Engine Speed 1700 r/min
Stroke 6.2 in
Tractor Engine Cat® C13 ACERT™


Tractor Engine - Prior U.S. EPA Tier 3/EU Stage IIIA Configuration*
Bore 5.1 in
Displacement 763 in³
Maximum Power - All Gears - ISO 14396 407 HP
Maximum Power Reference Engine Speed 1700 r/min
Stroke 6.2 in
Tractor Engine Cat® C13 ACERT™


Weights - Machines Meeting U.S. EPA Tier 4 Interim/EU Stage IIIB Emission Standards
Loaded, Based on a Rated Load 143245 lb
Operating Weight - Full Fuel Tanks 88046 lb
Shipping Weight - 10% Fuel 86259 lb


Weights - Machines Achieving Prior U.S. EPA Tier 3/EU Stage IIIA Emission Levels
Loaded, Based on a Rated Load 142701 lb
Operating Weight - Full Fuel Tanks 87499 lb
Shipping Weight - 10% Fuel 86004 lb


Service Refill Capacities - Tractor
Cooling System 17 gal (US)
Differential 45.8 gal (US)
Engine Crankcase 8.75 gal (US)
Final Drive - Each 5 gal (US)
Hydraulic Reservoir 22 gal (US)
Transmission 18.5 gal (US)
Windshield Washer Reservoir 1.3 gal (US)


Service Refill Capacities - Scraper
Fuel Tank 201.6 gal (US)
Non-Powered Wheel 1.1 gal (US)