Caterpillar 621F Motor Scraper

Weights
Front Axle Weight - Loaded

62915 lb

Operating Weight

70715 lb

Rear Axle - Weight - Loaded

55792 lb

Blade
Height - Scraper Blade Maximum

21 in

Cutting Edge Thickness

1.2 in

Engine & Fuel System
Tractor Engine

3406C

Fuel Capacity

215.1 gal

Caterpillar Net Power

333 hp

Gross Power

330 hp

Gross Power - Gears 1-2

347 hp

Net Power - Gears 1-2

330 hp

Cooling System

22 gal

Displacement

893 cu in

Model

3406CTA

Drive System
Final Drive - Each

5 gal

Relief Valve - Steering Circuit

2250 psi

Secondary Steering Circuit

37 gal/min

Steering Angle - Left

85 degrees

Steering Angle - Right

90 degrees

Steering Circuit

52 gal/min

Operating Specs
Total Operating - Empty

70715 lb

Total Operating - Loaded

118707 lb

Hydraulic System
Hydraulic Output

52 gal/min

Hydraulic Reservoir

37 gal

Dimensions, Wheels & Tires
Wheelbase

25.33 ft in

Width - Outside Rear Tires

120 in

Width - Rear Tire Center Lines

87 in

Ground Clearance - Maximum

20.5 in

Ground Clearance - Tractor

22 in

Overall Width

11.39 ft in

Overall Length

42.43 ft in

Overall Height

12.18 ft in

Wheel Base

25.34 ft in

Transmission
Transmission

19 gal

Max Speed - Forward

31.7 mph

1 Forward

3.1 mph

2 Forward

5.6 mph

3 Forward

7.1 mph

4 Forward

9.6 mph

5 Forward

12.9 mph

6 Forward

17.5 mph

7 Forward

23.6 mph

8 Forward

31.9 mph

Reverse

5.7 mile/h

Technical Specs
Height - Top Of Cab

11.09 ft in

Length - Overall Machine

507 in

Rear Axle - Rear Of Machine

85 in

Width - Inside Of Bowl

116 in

Width - Overall Machine

136 in

Axle To Vertical Hitch Pin

17 in

Width - Tractor

117 in

Height - Overall Shipping

132 in

Iso 9249

330 hp

Eec 80/1269

330 hp

Sae J1349

327 hp

Bore

5.4 in

Stroke

6.5 in

Width - 180 Degrees Turn

35.8 ft in

Rated Payload

47994.7 lb

Heaped Capacity

20.1 yd3

Struck Capacity

14 yd3

Max Depth Of Cut

13.2 in

Width Of Cut

10 ft in

Bowl Cylinder Bore

6 in

Bowl Cylinder Stroke

32 in

Scraper Circuit

65.5 gal/min

Cushion Hitch Circuit

9.7 gal/min

Ejector Cylinder Bore

6.5 in

Ejector Cylinder Stroke

61 in

Apron Cylinder Bore

7.3 in

Apron Cylinder Stroke

24 in

Width - Cut - To Router Bits

119 in

Rated Load

48000 lb

Capacity - Struck

14 yd3

Depth Of Cut - Maximum

13.2 in

Depth Of Spread - Maximum

70.1 in

Scraper Capacity - Heaped

30 yd3

Hyd. Penetration Force - 621g

33840 lb

Apron Closure Force

24075 lb

Apron Opening

70.1 in

Differential

43 gal

Crankcase

9.5 gal

Wheel Coolant - Each

12 gal

Total Shipping

69658 lb

Tractor Shipping

47943 lb

Scraper Shipping

21715 lb

Front Axle

48109 lb

Rear Axle

22638 lb