Caterpillar 621G
Browse All Caterpillar or Motor Scraper Models
Contents:
Dimensions
| Overall Length | 42.42 ft in (12917 mm) |
| Overall Width | 11.42 ft in (3467 mm) |
| Overall Height | 12.17 ft in (3705 mm) |
| Wheelbase | 25.42 ft in (7722 mm) |
| Tractor Ground Clearance | 1.83 ft in (553 mm) |
| Height To Top Of Cab | 11.25 ft in (3423 mm) |
| Length - Overall Machine | 508.5 in (12915.9 mm) |
| Rear Axle - Rear Of Machine | 84.3 in (2141.22 mm) |
| Rim Radius | 17 in (431.8 mm) |
| Wheel Base | 25.34 ft in (0.65 m) |
| Width - Inside Of Bowl | 116 in (2946.4 mm) |
| Width - Outside Rear Tires | 120 in (3048 mm) |
| Width - Overall Machine | 136.5 in (3467.1 mm) |
| Width - Rear Tire Center Lines | 86.6 in (2199.64 mm) |
| Axle To Vertical Hitch Pin | 17 in (431.8 mm) |
| Width - Tractor | 123.2 in (3129.28 mm) |
| Front Of Tractor To Front Axle | 120.4 in (3058.16 mm) |
| Ground Clearance - Tractor | 21.8 in (553.72 mm) |
| Height - Overall Shipping | 145.9 in (3705.86 mm) |
| Height - Scraper Blade Maximum | 20.6 in (523.24 mm) |
| Height - Top Of Cab | 11.24 ft in (0.29 m) |
Tractor Engine
| Make | Caterpillar |
| Model | C15 ACERT |
| Gross Power | 393 hp (293 kw) |
| Net Power | 365 hp (272 kw) |
| Displacement | 1098 cu in (18 L) |
Engine
| Tractor Engine | Cat C15 ACERT |
Tractor Engine
| Net Power - Gears 1-2 | 330 hp (246.1 kw) |
| Gross Power - Gears 1-2 | 359 hp (267.8 kw) |
| Caterpillar Net Power | 330 hp (246.1 kw) |
| Iso 9249 | 330 hp (246.1 kw) |
| Eec 80/1269 | 330 hp (246.1 kw) |
| Sae J1349 | 326 hp (243.1 kw) |
| Bore | 5.7 in (144.8 mm) |
| Stroke | 7.2 in (182.9 mm) |
| Net Power - Gears 3-8 | 365 hp (272.2 kw) |
| Gross Power - Gears 3-8 | 394 hp (293.9 kw) |
| Net Power - Tractor/Scraper | 246 kW (330 hp) |
Operational
| Fuel Capacity | 160 gal (606 L) |
| Cooling System Fluid Capacity | 28 gal (107 L) |
| Engine Oil Fluid Capacity | 9.5 gal (36 L) |
| Transmission Fluid Capacity | 19 gal (72 L) |
| Differential Fluid Capacity | 38 gal (144 L) |
| Hydraulic System Fluid Capacity | 37 gal (140 L) |
| Wheel Coolant Fluid Capacity - Each | 12 gal (45 L) |
| Operating Voltage | 24 V |
| Alternator Supplied Amperage | 75 amps |
| Tire Size | 33.25-R29 |
Transmission
| Transmission Type | 8-speed automatic Powershift with Electronic Control |
| Number Of Forward Gears | 8 |
| Number Of Reverse Gears | 1 |
| Max Speed Forward | 32 mph (51.5 km/h) |
| Max Speed Reverse | 5.7 mph (9.2 km/h) |
| Reverse | 5.7 mile/h |
Steering
| Width - 180 Degrees Turn | 35.9 ft in (11 m) |
| Steering Angle - Right | 90 degrees |
| Steering Angle - Left | 85 degrees |
| Hydraulic Output | 55 gal/min |
Transmission
| 1 Forward | 3.2 mph (5.2 km/h) |
| 2 Forward | 5.8 mph (9.4 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 (39 km/h) |
| 8 Forward | 32 mph (51.5 km/h) |
| Travel Speed - Maximum | 32 mph (51.5 km/h) |
Weights
| Total Operating - Empty | 73788.8 lb (33470 kg) |
| Operating Weight | 124590 lb (56513.1 kg) |
| Front Axle - Empty | 50177.3 % |
| Rear Axle - Empty | 23611.6 % |
| Total Operating - Loaded | 126589.5 lb (57420 kg) |
| Front Axel - Loaded | 67093.3 lb (30433 kg) |
| Rear Axle - Loaded | 59496.2 % |
Bowl
| Rated Payload | 52800 lb (23950 kg) |
| Heaped Capacity | 22 yd3 (17 m3) |
| Struck Capacity | 15.7 yd3 (12 m3) |
| Max Depth Of Cut | 13.1 in (333 mm) |
| Width Of Cut | 9.2 ft in (3023 mm) |
Hydraulics
| Bowl Cylinder Bore | 6 in (152.4 mm) |
| Bowl Cylinder Stroke | 32 in (812.8 mm) |
| Steering Circuit | 55 gal/min |
| Scraper Circuit | 72.1 gal/min |
| Cushion Hitch Circuit | 9.8 gal/min |
| Relief Valve - Steering Circuit | 2250 psi |
| Relief Valve - Implement Circuit | 2175 psi |
| Compensator Settings - Cushion Hitch Circuit | 2175 psi |
| Ejector Cylinder Bore | 6.5 in (165.1 mm) |
| Ejector Cylinder Stroke | 61 in (1549.4 mm) |
| Secondary Steering Circuit | 52 gal/min |
| Apron Cylinder Bore | 7.3 in (184.2 mm) |
| Apron Cylinder Stroke | 23.5 in (596.9 mm) |
Scraper Bowl
| Capacity Heaped | 22 yd3 (16.9 m3) |
| Width - Cut - To Router Bits | 119 in (3022.6 mm) |
| Rated Load | 52800 lb (23949.7 kg) |
| Capacity - Struck | 15.7 yd3 (12.1 m3) |
| Depth Of Cut - Maximum | 13.1 in (332.8 mm) |
| Ground Clearance - Maximum | 20.6 in (523.3 mm) |
| Cutting Edge Thickness | 0.9 in (22.4 mm) |
| Depth Of Spread - Maximum | 20.4 in (518.2 mm) |
| Apron Closure Force | 24075 lb (10920.3 kg) |
| Apron Opening | 70 in (1778 mm) |
| Hyd. Penetration Force | 119600 lb (54249.7 kg) |
Service Refill Capacities - Tractor
| Transmission | 18 gal (68.2 L) |
| Differential | 32 gal (121.2 L) |
| Final Drive - Each | 5.3 gal (20.1 L) |
| Cooling System | 14 gal (53 L) |
| Hydraulic Reservoir | 33 gal (125 L) |
| Crankcase | 10 gal (37.9 L) |
| Wheel Coolant - Each | 12 gal (45.5 L) |
| Windshield Washer | 1.5 gal (5.7 L) |
Weights - Standard, Tandem
| Total Shipping | 72455 lb (32865.1 kg) |
| Tractor Shipping | 49994 lb (22676.9 kg) |
| Scraper Shipping | 22461 lb (10188.2 kg) |
| Total Operating - Empty | 73789 lb (33470.2 kg) |
| Front Axle | 50176 lb (22759.5 kg) |
| Rear Axle | 23612 lb (10710.3 kg) |
| Total Operating - Loaded | 126589 lb (57419.9 kg) |
| Front Axle Weight - Loaded | 67092 lb (30432.5 kg) |
| Rear Axle - Weight - Loaded | 59497 lb (26987.4 kg) |
