621G Wheel Tractor Scraper

Overview & Specifications

Engine

Tractor Engine

Cat® C15 ACERT™

Cat® C15 ACERT™

Tractor Engine

Flywheel Power: Tractor/Scraper

246 kW (330 hp)

246 kW (330 hp)

Gross Power - Gears 1-2

359 hp

268 kW

Gross Power - Gears 3-8

394 hp

294 kW

Net Power - Gears 1-2

330 hp

246 kW

Net Power - Gears 3-8

365 hp

272 kW

Caterpillar Net Power

330 hp

246 kW

ISO 9249

330 hp

246 kW

EEC 80/1269

330 hp

246 kW

SAE J1349

326 hp

243 kW

Bore

5.7 in

145 mm

Stroke

7.2 in

183 mm

Displacement

1098 in3

18 L

Scraper Bowl

Scraper Capacity: Heaped

22 yd3

17 m3

Rated Load

52800 lb

23950 kg

Capacity Struck

15.7 yd3

12 m3

Depth of Cut - max.

13.1 in

333 mm

Width of Cut, to Router Bits

119 in

3023 mm

Ground Clearance - max.

20.6 in

522 mm

Cutting Edge - thickness

0.88 in.

22 mm

Hyd. Penetration Force

119600 lb

532 kN

Depth of Spread - max.

20.4 in

519 mm

Apron Opening

70 in

1780 mm

Apron Closure Force

24075 lb

107 kN

Transmission

Top Speed (Loaded)

32 mph

51.5 km/h

1 Forward

3.2 mph

5.1 km/h

2 Forward

5.8 mph

9.3 km/h

3 Forward

7.5 mph

12.1 km/h

4 Forward

10.1 mph

16.3 km/h

5 Forward

13.6 mph

21.9 km/h

6 Forward

18.2 mph

29.3 km/h

7 Forward

24.2 mph

38.9 km/h

8 Forward

32 mph

51.5 km/h

Reverse

5.7 mph

9.2 km/h

Hydraulics

Bowl Cylinder Bore

6 in

152 mm

Bowl Cylinder Stroke

32 in

813 mm

Apron Cylinder Bore

7.25 in

184 mm

Apron Cylinder Stroke

23.5 in

597 mm

Ejector Cylinder Bore

6.5 in

165 mm

Ejector Cylinder Stroke

61 in

1549 mm

Steering Circuit

55 gal/min

209 L/min

Scraper Circuit

72.1 gal/min

273 L/min

Cushion Hitch Circuit

9.8 gal/min

37 L/min

Secondary Steering Circuit

52 gal/min

147 L/min

Relief Valve - Steering Circuit

2250 psi

15500 kPa

Relief Valve - Implement Circuit

2175 psi

15000 kPa

Compensator Setting - Cushion Hitch Circuit

2175 psi

16000 kPa

Steering

Width - 180° Turn

35.9 ft

10.9 m

Steering Angle – Right

90°

90°

Steering Angle – Left

85°

85°

Hydraulic Output

55 gal/min

209 L/min

Service Refill Capacities – Tractor

Crankcase

10 gal

38 L

Transmission

18 gal

68 L

Differential

32 gal

121 L

Final Drive (per side)

5.3 gal

20 L

Cooling System

14 gal

73 L

Hydraulic Reservoir

33 gal

125 L

Wheel Coolant (each)

12 gal

45 L

Windshield Washer

1.5 gal

6 L

Dimensions

Width - overall machine

136.5 in

3467 mm

Width - tractor

123.2 in

3130 mm

Width - rear tire center lines

86.6 in

2200 mm

Width - inside of bowl

116 in

2946 mm

Width - outside rear tires

120 in

3048 mm

Height - overall shipping

145.9 in

3705 mm

Height - top of cab

134.8 in

3423 mm

Ground Clearance, Tractor

21.8 in

553 mm

Front of Tractor to Front Axle

120.4 in

3058 mm

Rim radius

17 in

432 mm

Axle to Vertical Hitch Pin

17 in

432 mm

Height - scraper blade max.

20.6 in

522 mm

Wheelbase

304 in

7722 mm

Length - overall machine

508.5 in

12917 mm

Rear Axle to Rear of Machine

84.3 in

2142 mm

Weights - Standard, tandem

Total Shipping

72455 lb

32865 kg

Tractor Shipping

49994 lb

22677 kg

Scraper Shipping

22461 lb

10118 kg

Total Operating - empty

73789 lb

33470 kg

Front Axle

50176 lb

22760 kg

Rear Axle

23612 lb

10710 kg

Total Operating - loaded

126589 lb

57420 kg

Front Axle Weight - loaded

67092 lb

30433 kg

Rear Axle Weight - loaded

59497 lb

26987 kg

Weights

Operating Weight

124590 lb

56513 kg