Caterpillar 621G Motor Scraper

Weights
Front Axle Weight - Loaded

67092 lb

Operating Weight

124590 lb

Rear Axle - Weight - Loaded

59497 lb

Blade
Height - Scraper Blade Maximum

20.6 in

Cutting Edge Thickness

0.9 in

Engine & Fuel System
Engine Oil Fluid Capacity

9.5 gal

Tractor Engine

Cat C15 ACERT

Fuel Capacity

160 gal

Caterpillar Net Power

330 hp

Gross Power

393 hp

Gross Power - Gears 1-2

359 hp

Gross Power - Gears 3-8

394 hp

Net Power

365 hp

Net Power - Gears 1-2

330 hp

Net Power - Gears 3-8

365 hp

Net Power - Tractor/Scraper

246 kW (330 hp)

Cooling System

14 gal

Cooling System Fluid Capacity

28 gal

Displacement

1098 cu in

Make

Caterpillar

Model

C15 ACERT

Drive System
Final Drive - Each

5.3 gal

Relief Valve - Steering Circuit

2250 psi

Secondary Steering Circuit

52 gal/min

Steering Angle - Left

85 degrees

Steering Angle - Right

90 degrees

Steering Circuit

55 gal/min

Operating Specs
Total Operating - Empty

73789 lb

Total Operating - Loaded

126589 lb

Hydraulic System
Hydraulic Output

55 gal/min

Hydraulic Reservoir

33 gal

Dimensions, Wheels & Tires
Tire Size

33.25-R29

Wheelbase

25.42 ft in

Width - Outside Rear Tires

120 in

Width - Rear Tire Center Lines

86.6 in

Ground Clearance - Maximum

20.6 in

Ground Clearance - Tractor

21.8 in

Tractor Ground Clearance

1.83 ft in

Overall Width

11.42 ft in

Overall Length

42.42 ft in

Height To Top Of Cab

11.25 ft in

Overall Height

12.17 ft in

Wheel Base

25.34 ft in

Battery & Electrical System
Alternator Supplied Amperage

75 A

Operating Voltage

24 V

Transmission
Transmission

18 gal

Transmission Fluid Capacity

19 gal

Transmission Type

8-speed automatic powershift with electronic control

Max Speed - Forward

32 mph

Max Speed - Reverse

5.7 mph

Number Of Forward Gears

8

Number Of Reverse Gears

1

Travel Speed - Maximum

32 mph

1 Forward

3.2 mph

2 Forward

5.8 mph

3 Forward

7.5 mph

4 Forward

10.1 mph

5 Forward

13.6 mph

6 Forward

18.2 mph

7 Forward

24.2 mph

8 Forward

32 mph

Reverse

5.7 mile/h

Technical Specs
Length - Overall Machine

508.5 in

Rear Axle - Rear Of Machine

84.3 in

Rim Radius

17 in

Width - Inside Of Bowl

116 in

Width - Overall Machine

136.5 in

Axle To Vertical Hitch Pin

17 in

Width - Tractor

123.2 in

Height - Overall Shipping

145.9 in

Height - Top Of Cab

11.24 ft in

Iso 9249

330 hp

Eec 80/1269

330 hp

Sae J1349

326 hp

Bore

5.7 in

Stroke

7.2 in

Differential Fluid Capacity

38 gal

Width - 180 Degrees Turn

35.9 ft in

Front Axle - Empty

50177.3 lb

Rear Axle - Empty

23611.6 lb

Front Axle - Load

67093.3 lb

Rear Axle - Loaded

59496.2 lb

Rated Payload

52800 lb

Heaped Capacity

22 yd3

Struck Capacity

15.7 yd3

Max Depth Of Cut

13.1 in

Width Of Cut

9.2 ft in

Bowl Cylinder Bore

6 in

Bowl Cylinder Stroke

32 in

Scraper Circuit

72.1 gal/min

Cushion Hitch Circuit

9.8 gal/min

Ejector Cylinder Bore

6.5 in

Ejector Cylinder Stroke

61 in

Apron Cylinder Bore

7.3 in

Apron Cylinder Stroke

23.5 in

Capacity - Heaped

22 yd3

Width - Cut - To Router Bits

119 in

Rated Load

52800 lb

Capacity - Struck

15.7 yd3

Depth Of Cut - Maximum

13.1 in

Depth Of Spread - Maximum

20.4 in

Apron Closure Force

24075 lb

Apron Opening

70 in

Hyd. Penetration Force

119600 lb

Differential

32 gal

Crankcase

10 gal

Wheel Coolant - Each

12 gal

Windshield Washer

1.5 gal

Total Shipping

72455 lb

Tractor Shipping

49994 lb

Scraper Shipping

22461 lb

Front Axle

50176 lb

Rear Axle

23612 lb