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Home / Equipment / Caterpillar Machines / Scrapers / 621G Wheel Tractor Scraper

Caterpillar 621G Wheel Tractor Scraper

Caterpillar Wheel Tractor-Scrapers offer fast cycle times, with quick loading, high travel speeds and the ability to load and dump on the run. Rugged construction and easy maintenance assure long life with low operating costs.


View/Download Product Brochure (PDF)


Overview &
Specifications		Features
& Benefits		Standard
Equipment		Optional
Equipment		Work Tools &
Attachments		 

Scraper Bowl
Capacity Heaped22 yd3 / 17 m3
Rated Load52800 lb / 23950 kg
Capacity Struck15.7 yd3 / 12 m3
Depth of Cut - max.13.1 in / 333 mm
Width of Cut, to Router Bits119 in / 3023 mm
Ground Clearance - max.20.6 in / 522 mm
Cutting Edge - thickness.88 in. / 22 mm
Hyd. Penetration Force - 621G33840 lb / 150.4 kN
Depth of Spread - max.20.6 in / 522 mm
Apron Opening70 in / 1780 mm
Apron Closure Force24075 lb / 107 kN

Transmission
Travel Speed Maximum32 mph / 51.5 km/h
1 Forward3.1 mph / 5 km/h
2 Forward4.7 mph / 7.6 km/h
3 Forward6.8 mph / 10.9 km/h
5 Forward12.4 mph / 19.9 km/h
4 Forward9.2 mph / 14.8 km/h
6 Forward16.7 mph / 26.9 km/h
7 Forward22.6 mph / 36.4 km/h
8 Forward32 mph / 51.5 km/h
Reverse5.7 mph / 9.2 km/h

Tractor Engine
Net Power - Tractor/Scraper246 kW (330 hp)
Gross Power - Gears 1-2359 hp / 268 kW
Gross Power - Gears 3-8394 hp / 294 kW
Net Power - Gears 1-2330 hp / 246 kW
Net Power - Gears 3-8365 hp / 272 kW
Caterpillar Net Power330 hp / 246 kW
ISO 9249330 hp / 246 kW
EEC 80/1269330 hp / 246 kW
SAE J1349326 hp / 243 kW
Bore5.5 in / 140 mm
Stroke6.5 in / 165 mm
Displacement928 in3 / 15.2 L

Weights
Operating Weight124590 lb / 56513 kg

Weights - Standard, tandem
Total Shipping72455 lb / 32865 kg
Tractor Shipping49994 lb / 22677 kg
Scraper Shipping22461 lb / 10118 kg
Total Operating - empty73789 lb / 33470 kg
Front Axle50176 lb / 22760 kg
Rear Axle23612 lb / 10710 kg
Total Operating - loaded126589 lb / 57420 kg
Front Axle Weight - loaded67092 lb / 30433 kg
Rear Axle Weight - loaded59497 lb / 26987 kg

Dimensions
Width - overall machine136.5 in / 3467 mm
Width - tractor123.2 in / 3130 mm
Width - rear tire center lines85.8 in / 2180 mm
Width - inside of bowl116 in / 2946 mm
Width - outside rear tires120 in / 3048 mm
Height - overall shipping145.9 in / 3705 mm
Height - top of cab134.8 in / 3423 mm
Ground Clearance, Tractor21.8 in / 553 mm
Front of Tractor to Front Axle120.4 in / 3058 mm
Rim radius17 in / 432 mm
Axle to Vertical Hitch Pin17 in / 432 mm
Height - scraper blade max.20.6 in / 522 mm
Wheelbase304 in / 7722 mm
Length - overall machine508.5 in / 12917 mm
Rear Axle to Rear of Machine84.3 in / 2142 mm
Bail Length - max. (push-pull)63.5 in / 1612 mm
Extended Push Block (push-pull)109.7 in / 2786 mm

Steering
Width - 180° Turn35.9 ft / 10.9 m
Steering Angle - right90°
Steering Angle - left85°
Hydraulic Output55 gal/min / 209 L/min

Service Refill Capacities - Tractor
Crankcase9.5 gal / 36 L
Transmission19 gal / 72 L
Differential38 gal / 144 L
Final Drive (per side)5 gal / 19 L
Cooling System28 gal / 107 L
Hydraulic Reservoir37 gal / 140 L
Wheel Coolant (each)12 gal / 45 L
Windshield Washer1.5 gal / 6 L

Hydraulics
Bowl Cylinder Bore6 in / 152 mm
Bowl Cylinder Stoke32 in / 813 mm
Apron Cylinder Bore7.25 in / 184 mm
Apron Cylinder Stroke23.5 in / 597 mm
Ejector Cylinder Bore6.5 in / 165 mm
Ejector Cylinder Stroke61 in / 1549 mm
Steering Circuit55 gal/min / 209 L/min
Scraper Circuit65.5 gal/min / 284 L/min
Cushion Hitch Circuit9.8 gal/min / 37 L/min
Secondary Steering Circuit39.9 gal/min / 150 L/min
Relief Valve - Steering Circuit2250 psi / 15500 kPa
Relief Valve - Implement Circuit2175 psi / 15000 kPa
Compensator Setting - Cushion Hitch Circuit2175 psi / 16000 kPa

 
INDIANA'S LEADING EQUIPMENT DEALER

MacAllister Machinery has 14 convenient locations throughout Indiana: Beech Grove, Bloomington, Fishers, Fort Wayne, Greensburg, Indianapolis (HQ, Power Systems), Indianapolis (West), Lafayette, Muncie, Richmond, South Bend, Terre Haute, and Washington.

Headquarters: 7515 E 30th St, Indianapolis, IN 46219
Phone: (317) 545-2151  In-State Toll Free: (800) 382-1896  Out of State Toll Free: (800) 227-3228