Caterpillar 621F
Browse All Caterpillar or Motor Scraper Models
Contents:
Dimensions
| Overall Length | 42.43 ft in (12930 mm) |
| Overall Width | 11.39 ft in (3470 mm) |
| Overall Height | 12.18 ft in (3710 mm) |
| Wheelbase | 25.33 ft in (7720 mm) |
| Height - Scraper Blade Maximum | 21 in (533.4 mm) |
| Height - Top Of Cab | 11.09 ft in (0.29 m) |
| Length - Overall Machine | 507 in (12877.8 mm) |
| Rear Axle - Rear Of Machine | 85 in (2159 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 in (3454.4 mm) |
| Width - Rear Tire Center Lines | 87 in (2209.81 mm) |
| Axle To Vertical Hitch Pin | 17 in (431.8 mm) |
| Width - Tractor | 117 in (2971.8 mm) |
| Front Of Tractor To Front Axle | 125 in (3175 mm) |
| Ground Clearance - Tractor | 22 in (558.8 mm) |
| Height - Overall Shipping | 132 in (3352.8 mm) |
Tractor Engine
| Model | 3406CTA |
| Gross Power | 330 hp (246.1 kw) |
| Displacement | 893 cu in (14.7 L) |
Engine
| Tractor Engine | 3406C |
Tractor Engine
| Net Power - Gears 1-2 | 330 hp (246.1 kw) |
| Gross Power - Gears 1-2 | 347 hp (258.8 kw) |
| Caterpillar Net Power | 333 hp (248.4 kw) |
| Iso 9249 | 330 hp (246.1 kw) |
| Eec 80/1269 | 330 hp (246.1 kw) |
| Sae J1349 | 327 hp (243.9 kw) |
| Bore | 5.4 in (137.2 mm) |
| Stroke | 6.5 in (165.1 mm) |
Operational
| Fuel Capacity | 215.1 gal (814 L) |
Transmission
| Max Speed Forward | 31.7 mph (51 km/h) |
| Reverse | 5.7 mile/h |
Steering
| Width - 180 Degrees Turn | 35.8 ft in (10.9 m) |
| Steering Angle - Right | 90 degrees |
| Steering Angle - Left | 85 degrees |
| Hydraulic Output | 52 gal/min |
Transmission
| 1 Forward | 3.1 mph (5 km/h) |
| 2 Forward | 5.6 mph (9.1 km/h) |
| 3 Forward | 7.1 mph (11.5 km/h) |
| 4 Forward | 9.6 mph (15.5 km/h) |
| 5 Forward | 12.9 mph (20.8 km/h) |
| 6 Forward | 17.5 mph (28.2 km/h) |
| 7 Forward | 23.6 mph (38 km/h) |
| 8 Forward | 31.9 mph (51.4 km/h) |
Steering
| Ground-Driven Secondary Steering System | 39.9 gal/min |
Weights
| Total Operating - Empty | 70746.4 lb (32090 kg) |
| Operating Weight | 70715 lb (32075.8 kg) |
Bowl
| Rated Payload | 47994.7 lb (21770 kg) |
| Heaped Capacity | 20.1 yd3 (15.3 m3) |
| Struck Capacity | 14 yd3 (10.7 m3) |
| Max Depth Of Cut | 13.2 in (333 mm) |
| Width Of Cut | 10 ft in (3020 mm) |
Hydraulics
| Bowl Cylinder Bore | 6 in (152.4 mm) |
| Bowl Cylinder Stroke | 32 in (812.8 mm) |
| Steering Circuit | 52 gal/min |
| Scraper Circuit | 65.5 gal/min |
| Cushion Hitch Circuit | 9.7 gal/min |
| Relief Valve - Steering Circuit | 2250 psi |
| Relief Valve - Implement Circuit | 2150 psi |
| Ejector Cylinder Bore | 6.5 in (165.1 mm) |
| Ejector Cylinder Stroke | 61 in (1549.4 mm) |
| Secondary Steering Circuit | 37 gal/min |
| Apron Cylinder Bore | 7.3 in (184.2 mm) |
| Apron Cylinder Stroke | 24 in (609.6 mm) |
Scraper Bowl
| Width - Cut - To Router Bits | 119 in (3022.6 mm) |
| Rated Load | 48000 lb (21772.5 kg) |
| Capacity - Struck | 14 yd3 (10.8 m3) |
| Depth Of Cut - Maximum | 13.2 in (333 mm) |
| Ground Clearance - Maximum | 20.5 in (520.7 mm) |
| Cutting Edge Thickness | 1.2 in (29 mm) |
| Depth Of Spread - Maximum | 70.1 in (1780.6 mm) |
| Scraper Capacity - Heaped | 30 yd3 (23 m3) |
| Hyd. Penetration Force - 621g | 33840 lb (15349.6 kg) |
| Apron Closure Force | 24075 lb (10920.3 kg) |
| Apron Opening | 70.1 in (1780.6 mm) |
Service Refill Capacities - Tractor
| Transmission | 19 gal (72 L) |
| Differential | 43 gal (162.8 L) |
| Final Drive - Each | 5 gal (19 L) |
| Cooling System | 22 gal (83.3 L) |
| Hydraulic Reservoir | 37 gal (140.1 L) |
| Crankcase | 9.5 gal (36 L) |
| Wheel Coolant - Each | 12 gal (45.5 L) |
Weights - Standard, Tandem
| Total Shipping | 69658 lb (31596.4 kg) |
| Tractor Shipping | 47943 lb (21746.6 kg) |
| Scraper Shipping | 21715 lb (9849.8 kg) |
| Total Operating - Empty | 70715 lb (32075.8 kg) |
| Front Axle | 48109 lb (21821.9 kg) |
| Rear Axle | 22638 lb (10268.5 kg) |
| Total Operating - Loaded | 118707 lb (53844.6 kg) |
| Front Axle Weight - Loaded | 62915 lb (28537.8 kg) |
| Rear Axle - Weight - Loaded | 55792 lb (25306.9 kg) |
