651
- Scraper Capacity - Heaped
- 44 yd³ / 33.6 m³
- Top Speed - Loaded
- 34.9 mile/h / 56.1 km/h
- Rated Load
- 104058 lb / 47200 kg
Caterpillar is excited to announce the 651 comeback into our Wheel Tractor-Scraper lineup in 2022. Delivering high levels of productivity, the 651 single engine earthmoving system is a wise choice on numerous large-scale projects by providing fast cycle times when working in lower grades and rolling resistance applications. First introduced into the Cat® Wheel Tractor-Scraper lineup in 1962, the 651 continues to uphold its legacy as one of our signaturemachines. Its single engine power gives the ability to work with a Cat D10 or D11 push dozer delivering ultra-fast load times and the ability to work in abrasive or rocky conditions. Improvements in productivity, combined with enhancements in operator comfort, and new safety features – Powered Access System and effective wet disc brakes – for a machine offering high returns on profit and time
| Engine | |
|---|---|
| Tractor Engine | Cat C18 |
| Tractor Engine | |
|---|---|
| Flywheel Power - Tractor/Scraper | 469kW (629 hp) |
| Net Power | 469 kW/637 hp |
| Gross Power (SAE J1995) | 637 hp / 475 kW |
| Net Power (ISO 14396) | 585 hp / 436 kW |
| Bore | 5.7 in / 145 mm |
| Stroke | 7.2 in / 183 mm |
| Displacement | 1105 in³ / 18.1 l |
| Net Power (SAE J1349/ISO 9249) | 592 hp / 436 kW |
| Scraper Bowl | |
|---|---|
| Scraper Capacity - Heaped | 44 yd³ / 33.6 m³ |
| Rated Load | 104058 lb / 47200 kg |
| Capacity - Struck | 32 yd³ / 24.5 m³ |
| Depth of Cut - Maximum | 17.3 in / 417 mm |
| Width - Cut - To Router Bits | 12.5 ft / 3.8 m |
| Ground Clearance - Maximum | 2.3 ft / 0.7 m |
| Hyd. Penetration Force - 657G | 121000 lb / 542 kN |
| Depth of Spread - Maximum | 26 in / 530 mm |
| Apron Opening | 92 in / 2337 mm |
| Apron Closure Force | 39200 lb / 176 kN |
| Transmission | |
|---|---|
| Top Speed - Loaded | 34.9 mile/h / 56.1 km/h |
| 1 Forward | 3.5 mile/h / 5.7 km/h |
| 2 Forward | 6.5 mile/h / 10.5 km/h |
| 3 Forward | 7.8 mile/h / 12.5 km/h |
| 4 Forward | 10.6 mile/h / 17 km/h |
| 5 Forward | 14.2 mile/h / 22.8 km/h |
| 6 Forward | 19.2 mile/h / 30.9 km/h |
| 7 Forward | 25.7 mile/h / 41.4 km/h |
| 8 Forward | 34.9 mile/h / 56.1 km/h |
| Reverse | 6.7 mile/h / 10.8 km/h |
| Hydraulics | |
|---|---|
| Bowl Cylinder Bore | 7.08 in / 180 mm |
| Bowl Cylinder Stroke | 37.4 in / 950 mm |
| Apron Cylinder Bore | 7.08 in / 180 mm |
| Apron Cylinder Stroke | 29.92 in / 759.5 mm |
| Steering Circuit (@ High Idle) | 76.08 gal/min / 288 l/min |
| Cushion Hitch Circuit | 19.54 gal/min / 74 l/min |
| Secondary Steering Circuit | 14.52 gal/hr / 55 l/hr |
| Relief Valve - Steering Circuit | 1959 psi / 13500 kPa |
| Relief Valve - Implement Circuit | 1999 psi / 13780 kPa |
| Compensator Settings - Cushion Hitch Circuit | 3002 psi / 20700 kPa |
| Steering | |
|---|---|
| Width - 180° Turn - Right | 44.6 ft / 13.6 m |
| Width - 180° Turn - Left | 47.57 ft / 14.5 m |
| Steering Angle - Right | 90 |
| Steering Angle - Left | 85 |
| Service Refill Capacities - Tractor | |
|---|---|
| Crankcase | 13.7 gal (US) / 38 l |
| Transmission | 35.9 gal (US) / 136 l |
| Differential | 36 gal (US) / 136 l |
| Final Drive - Each | 6 gal (US) / 29.5 l |
| Cooling System | 23.4 gal (US) / 88.6 l |
| Hydraulic Reservoir | 39.6 gal (US) / 150 l |
| Windshield Washer | 0.5 gal (US) / 5 l |
| Dimensions | |
|---|---|
| Width - Overall Machine | 14.3 ft / 4.36 m |
| Width - Tractor | 12.3 ft / 3.75 m |
| Width - Rear Tire Center Lines | 9.21 ft / 2.81 m |
| Width - Inside of Bowl | 12.07 ft / 3.68 m |
| Width - Outside Bowl - Shipping Width | 12.98 ft / 3.93 m |
| Height - Overall Shipping | 15.29 ft / 4.66 m |
| Height - Top of Cab | 12.86 ft / 3.92 m |
| Ground Clearance - Tractor | 2.3 ft / 0.7 m |
| Front of Tractor to Front Axle | 14.93 ft / 4.55 m |
| Axle to Vertical Hitch Pin | 1.8 ft / 0.55 m |
| Height - Scraper Blade Maximum | 2.17 ft / 0.66 m |
| Wheel Base | 32.68 ft / 9.96 m |
| Length - Overall Machine | 58.96 ft / 17.97 m |
| Rear Axle - Rear of Machine | 8.07 ft / 2.46 m |
| Weights - Push-Pull | |
|---|---|
| Total Shipping | 160505 lb / 72804 kg |
| Tractor Shipping | 93635 lb / 42472 kg |
| Scraper Shipping | 64068 lb / 29061 kg |
| Total Operating - Empty | 164244 lb / 74500 kg |
| Front Axle | 93842 lb / 42566 kg |
| Rear Axle | 66663 lb / 30238 kg |
| Total Operating - Loaded | 268302 lb / 121700 kg |
| Front Axle - Loaded | 134165 lb / 60856 kg |
| Rear Axle - Loaded | 130340 lb / 59121 kg |
| Service Refill Capacities - Scraper | |
|---|---|
| Fuel Tank | 430 gal (US) / 1628 l |
| Differential | 44 gal (US) / 168 l |
| Final Drive - Each | 7.8 gal (US) / 30 l |
| Transmission | 31.9 gal (US) / 121 l |
| Crankcase | 8.9 gal (US) / 34 l |
| Cooling System | 16.6 gal (US) / 63.2 l |
