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Caterpillar

621G

Scraper

Net Power
365.0 hp
Gross Power
393.0 hp
Max Speed - Forward
32.0 mph
Max Speed - Reverse
5.7 mph
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Caterpillar 621G Scraper
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Specifications

116 data points

Operating Specifications

Operating Specifications specifications
Fuel Capacity160.0 gal
Tire Size33.25-R29
Cooling System Fluid Capacity28.0 gal
Transmission Fluid Capacity19.0 gal
Engine Oil Fluid Capacity9.5 gal
Hydraulic System Fluid Capacity37.0 gal
Operating Voltage24 V
Differential Fluid Capacity38.0 gal
Alternator Supplied Amperage75 A
Wheel Coolant Fluid Capacity - each12.0 gal

Engine

Engine specifications
Tractor EngineCat C15 ACERT

Weights

Weights specifications
Operating Weight124,590 lb
Total Operating - empty73,789 lb
Total Operating - Loaded126,590 lb
Front Axle - empty50,177 lb
Rear Axle - empty23,612 lb
Front Axel - loaded67,093 lb
Rear Axle - loaded59,496 lb

Hydraulic System

Hydraulic System specifications
Bowl Cylinder Bore6 in
Bowl Cylinder Stroke32 in
Ejector Cylinder Stroke61 in
Ejector Cylinder Bore7 in
Scraper Circuit72.1 gal/min
Steering Circuit55.0 gal/min
Relief Valve - Steering Circuit2,250 psi
Cushion Hitch Circuit9.8 gal/min
Relief Valve - Implement Circuit2,175 psi
Apron Cylinder Bore7 in
Apron Cylinder Stroke24 in
Compensator Settings - Cushion Hitch Circuit2,175 psi
Secondary Steering Circuit52.0 gal/min

Dimensions

Dimensions specifications
Height - Top of Cab135 in
Wheelbase306 in
Overall Length510 in
Overall Width138 in
Overall Height146 in
Wheel Base305 in
Tractor Ground Clearance23 in
Width - Outside Rear Tires120 in
Length - Overall Machine509 in
Height - Overall Shipping146 in
Height - Scraper Blade Maximum21 in
Width - Rear Tire Center Lines87 in
Width - Inside of Bowl116 in
Rear Axle - Rear of Machine84 in
Front of Tractor to Front Axle120 in
Width - Overall Machine137 in
Width - Tractor123 in
Ground Clearance - Tractor22 in
Axle to Vertical Hitch Pin17 in
Rim Radius17 in

Transmission

Transmission specifications
Max Speed - Forward32.0 mph
Max Speed - Reverse5.7 mph
Number of Forward Gears8
Number of Reverse Gears1
1 Forward3.2 mph
2 Forward5.8 mph
3 Forward7.5 mph
4 Forward10.1 mph
5 Forward13.6 mph
6 Forward18.2 mph
Reverse5.7 mph
7 Forward24.2 mph
8 Forward32.0 mph
Transmission Type8-speed automatic Powershift with Electronic Control
Travel Speed - Maximum32.0 mph

Steering System

Steering System specifications
Steering Angle - Left85 °
Steering Angle - Right90 °
Width - 180 degrees Turn431 in
Hydraulic Output55.0 gal/min

Bowl

Bowl specifications
Heaped Capacity22.00 yd³
Width of Cut110 in
Max Depth of Cut13 in
Rated Payload52,800 lb
Struck Capacity15.70 yd³

Tractor Engine

Tractor Engine specifications
Net Power365.0 hp
Net Power - Gears 1-2330.0 hp
Net Power - Gears 3-8365.0 hp
Net Power - Tractor/Scraper329.9 hp
Gross Power393.0 hp
Gross Power - Gears 3-8394.0 hp
Displacement1,098 in³
MakeCaterpillar
Bore6 in
Stroke7 in
Caterpillar Net Power330.0 hp
EEC 80/1269330.0 hp
ISO 9249330.0 hp
SAE J1349326.0 hp

Scraper Bowl

Scraper Bowl specifications
Rated Load52,800 lb
Capacity - Struck15.70 yd³
Depth of Spread - Maximum20 in
Ground Clearance - Maximum21 in
Depth of Cut - Maximum13 in
Width - Cut - To Router Bits119 in
Cutting Edge Thickness1 in
Apron Closure Force24,075 lb
Apron Opening70 in
Capacity Heaped22.00 yd³

Service Refill Capacities - Tractor

Service Refill Capacities - Tractor specifications
Cooling System14.0 gal
Differential32.0 gal
Final Drive - Each5.3 gal
Hydraulic Reservoir33.0 gal
Transmission18.0 gal
Crankcase10.0 gal
Wheel Coolant - Each12.0 gal
Windshield Washer1.5 gal

Weights - Standard, Tandem

Weights - Standard, Tandem specifications
Front Axle50,176 lb
Front Axle Weight - Loaded67,092 lb
Rear Axle23,612 lb
Rear Axle - Weight - Loaded59,497 lb
Total Operating - Empty73,789 lb
Total Operating - Loaded126,589 lb
Scraper Shipping22,461 lb
Total Shipping72,455 lb
Tractor Shipping49,994 lb

Comparable machines

Other scrapers in a similar weight class.