- Category: Scrapers ➔
- Manufacturer: Caterpillar ➔
- Model: 621G ➔
Introducing the Caterpillar 621G Scraper, a high-capacity earthmoving machine designed for heavy-duty construction and mining operations. With a heaped bowl capacity of 22 cubic yards and a bowl max depth of cut of 13.1 inches, this powerhouse boasts impressive capabilities for moving large volumes of material efficiently. From its robust hydraulic system with a scraper circuit flow rate of 72.1 gallons per minute to its powerful Cat C15 ACERT engine producing a net power of 365 horsepower, every detail of the 621G is engineered for top performance and productivity. Explore the comprehensive specifications of the Caterpillar 621G Scraper below to see how it can take your earthmoving projects to the next level.
General Specifications
Bowl
| Heaped Capacity | 22 cu yd (17 cu m)
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| Max Depth of Cut | 13 in (33 cm)
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| Rated Payload | 52,800 lbs (23,950 kg)
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| Struck Capacity | 16 cu yd (12 cu m)
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| Width of Cut | 9 ft (3 m)
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Dimensions
| Axle to Vertical Hitch Pin | 17 in (43 cm)
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| Front of Tractor to Front Axle | 120 in (306 cm)
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| Ground Clearance - Tractor | 22 in (55 cm)
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| Height - Overall Shipping | 146 in (371 cm)
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| Height - Scraper Blade Maximum | 21 in (52 cm)
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| Height - Top of Cab | 11 ft (3 m)
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| Length - Overall Machine | 509 in (1,292 cm)
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| Overall Height | 12 ft (4 m)
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| Overall Length | 43 ft (13 m)
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| Overall Width | 12 ft (4 m)
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| Rear Axle - Rear of Machine | 84 in (214 cm)
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| Rim Radius | 17 in (43 cm)
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| Tractor Ground Clearance | 2 ft (1 m)
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| Wheel Base | 25 ft (8 m)
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| Wheelbase | 26 ft (8 m)
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| Width - Inside of Bowl | 116 in (295 cm)
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| Width - Outside Rear Tires | 120 in (305 cm)
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| Width - Overall Machine | 137 in (347 cm)
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| Width - Rear Tire Center Lines | 87 in (220 cm)
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| Width - Tractor | 123 in (313 cm)
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Engine
| Tractor Engine | Cat C15 ACERT
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Hydraulic System
| Apron Cylinder Bore | 7 in (19 cm)
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| Apron Cylinder Stroke | 24 in (60 cm)
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| Bowl Cylinder Bore | 6 in (15 cm)
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| Bowl Cylinder Stroke | 32 in (81 cm)
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| Compensator Settings - Cushion Hitch Circuit | 2175 psi
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| Cushion Hitch Circuit | 10 gpm (37 lpm)
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| Ejector Cylinder Bore | 7 in (17 cm)
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| Ejector Cylinder Stroke | 61 in (155 cm)
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| Relief Valve - Implement Circuit | 2175 psi
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| Relief Valve - Steering Circuit | 2250 psi
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| Scraper Circuit | 72 gpm (273 lpm)
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| Secondary Steering Circuit | 52 gpm (197 lpm)
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| Steering Circuit | 55 gpm (208 lpm)
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Operating Specifications
| Alternator Supplied Amperage | 75 amps
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| Cooling System Fluid Capacity | 28 gal (106 l)
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| Differential Fluid Capacity | 38 gal (144 l)
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| Engine Oil Fluid Capacity | 10 gal (36 l)
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| Fuel Capacity | 160 gal (606 l)
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| Hydraulic System Fluid Capacity | 37 gal (140 l)
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| Operating Voltage | 24 volts
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| Tire Size | 33.25-R29
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| Transmission Fluid Capacity | 19 gal (72 l)
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| Wheel Coolant Fluid Capacity - each | 12 gal (45 l)
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Scraper Bowl
| Apron Closure Force | 24,075 lbs (10,920 kg)
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| Apron Opening | 70 in (178 cm)
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| Capacity - Struck | 16 cu yd (12 cu m)
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| Capacity Heaped | 22 cu yd (17 cu m)
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| Cutting Edge Thickness | 1 in (2 cm)
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| Depth of Cut - Maximum | 13 in (33 cm)
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| Depth of Spread - Maximum | 20 in (52 cm)
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| Ground Clearance - Maximum | 21 in (52 cm)
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| Rated Load | 52,800 lbs (23,950 kg)
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| Width - Cut - To Router Bits | 119 in (302 cm)
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Service Refill Capacities - Tractor
| Cooling System | 14 gal (53 l)
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| Crankcase | 10 gal (38 l)
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| Differential | 32 gal (121 l)
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| Final Drive - Each | 5 gal (20 l)
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| Hydraulic Reservoir | 33 gal (125 l)
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| Transmission | 18 gal (68 l)
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| Wheel Coolant - Each | 12 gal (45 l)
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| Windshield Washer | 2 gal (6 l)
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Steering System
| Hydraulic Output | 55 gpm (208 lpm)
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| Steering Angle - Left | 85 degrees
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| Steering Angle - Right | 90 degrees
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| Width - 180 degrees Turn | 36 ft (11 m)
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Tractor Engine
| Bore | 6 in (14 cm)
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| Caterpillar Net Power | 330 hp (246 kw)
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| Displacement | 1,098 cu in (17,993 cu cm)
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| EEC 80/1269 | 330 hp (246 kw)
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| Gross Power | 393 hp (293 kw)
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| Gross Power - Gears 3-8 | 394 hp (294 kw)
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| ISO 9249 | 330 hp (246 kw)
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| Make | Caterpillar
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| Net Power | 365 hp (272 kw)
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| Net Power - Gears 1-2 | 330 hp (246 kw)
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| Net Power - Gears 3-8 | 365 hp (272 kw)
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| Net Power - Tractor/Scraper | 246 kW (330)
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| SAE J1349 | 326 hp (243 kw)
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| Stroke | 7 in (18 cm)
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Transmission
| 1 Forward | 3 mph (5 kph)
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| 2 Forward | 6 mph (9 kph)
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| 3 Forward | 8 mph (12 kph)
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| 4 Forward | 10 mph (16 kph)
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| 5 Forward | 14 mph (22 kph)
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| 6 Forward | 18 mph (29 kph)
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| 7 Forward | 24 mph (39 kph)
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| 8 Forward | 32 mph (51 kph)
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| Max Speed Forward | 32 mph (51 kph)
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| Max Speed Reverse | 6 mph (9 kph)
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| Number of Forward Gears | 8
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| Number of Reverse Gears | 1
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| Reverse | 6 mph (9 kph)
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| Transmission Type | 8-speed automatic Powershift with Electronic Control
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| Travel Speed - Maximum | 32 mph (51 kph)
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Weights
| Front Axel - loaded | 67,093 lbs (30,433 kg)
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| Front Axle - empty | 50,177 lbs (22,760 kg)
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| Operating Weight | 124,590 lbs (56,513 kg)
|
| Rear Axle - empty | 23,612 lbs (10,710 kg)
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| Rear Axle - loaded | 59,496 lbs (26,987 kg)
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| Total Operating - empty | 73,789 lbs (33,470 kg)
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| Total Operating - Loaded | 126,590 lbs (57,420 kg)
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Weights - Standard, Tandem
| Front Axle | 50,176 lbs (22,759 kg)
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| Front Axle Weight - Loaded | 67,092 lbs (30,432 kg)
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| Rear Axle | 23,612 lbs (10,710 kg)
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| Rear Axle - Weight - Loaded | 59,497 lbs (26,987 kg)
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| Scraper Shipping | 22,461 lbs (10,188 kg)
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| Total Operating - Empty | 73,789 lbs (33,470 kg)
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| Total Operating - Loaded | 126,589 lbs (57,420 kg)
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| Total Shipping | 72,455 lbs (32,865 kg)
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| Tractor Shipping | 49,994 lbs (22,677 kg)
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