651 Wheel Tractor-Scraper
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
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Specifications
| Name | Type | Value | Unit Value (Imperial) | Unit Name | Unit Value (Metric) | Unit Name (Metric) |
|---|---|---|---|---|---|---|
| Tractor Engine | text | Cat® C18 | ||||
| Flywheel Power - Tractor/Scraper | text | 469kW (629 hp) | ||||
| Bore | measurement | 5.7 | in | 145 | mm |
Documents & Spec Sheets
Features & Benefits
BE MORE PRODUCTIVE
- The Advanced Productivity Electronic Control System (APECS) enables communication between the engine and transmission to optimize power and torque output effectively. This integration
results in enhanced efficiency with a net result of moving more
material. - Use Ground Speed Control to set the desired top speed, and the machine will find the gear that works best for the engine and the transmission, providing a lower fuel burn.
- The machine speed limit feature allows the machine to maintain a
set the top speed instead of relying on top gear selector. - Auto-Stall assists in quickly bringing the transmission to an
operating temperature at start-up when the machine is working in a cold climate region. - Cat Payload for scrapers is an earthmoving solution for optimal payload and jobsite efficiency. Cat Payload achieves on-the-go
weighing by using bowl lift cylinder pressure during the loaded haul segment. Cat Payload is optimized to be used with Sequence
Assist, which provides increased productivity with less operator
effort.
WORK IN COMFORT
- Steer with less effort with the newly designed high-pressure steering system.
- Reduce up to 14 individual operator commands per cycle with
Sequence Assist. - Enjoy interior improvements and a more ergonomic work environment
. - Intuitive, ergonomic controls with multifunction display keep operators
focused on their work. - Maintain desired cab temperature with automatic temperature control
.
DESIGNED FOR SAFETY
- Get in and out of the cab easier with the powered access ladder system.
- Enhance the operator’s awareness of site surroundings with the
Work Area Vision System (WAVS). - Convenient ground-level access to fuel fill and several maintenance points for easier
and safer service. - Seat belt indicator provides visual and audible alerts when the seat
belt is not in use.
EASY TO OPERATE
- Cat Advanced Ride Management (ARM) seat suspension reduces end stroke movement of the load cylinder for a smoother ride.
- Engine overspeed protection will automatically engage with no operator input when the machine is in eighth gear. The machine will assist in slowing the machine speed by canceling the throttle command and engaging the engine compression brake.
- The spacious cab features easy, intuitive controls and excellent
visibility. The cab provides a comfortable working environment for
all-day operation.
INTEGRATED CAT TECHNOLOGIES
- Access information anytime, anywhere with Vision Link™– use it to make informed decisions that boost productivity, lower costs, simplify maintenance, and improve safety and security on your job site.
- Product Link™
collects machine data that can be viewed online through
web and mobile applications (optional attachment). - Hit target grade faster and more accurately with Cat Grade
technologies. Finish jobs in fewer passes and with less operator
effort, saving you time and helping to increase profit. - Monitor, manage, and enhance jobsite operations.
- Shorten the learning curve for inexperienced operators with
Sequence Assist.
Complete Specifications
Engine
| Name | Type | Value | Unit Value (Imperial) | Unit Name | Unit Value (Metric) | Unit Name (Metric) |
|---|---|---|---|---|---|---|
| Tractor Engine | text | Cat® C18 | ||||
| Flywheel Power - Tractor/Scraper | text | 469kW (629 hp) | ||||
| Bore | measurement | 5.7 | in | 145 | mm | |
| Stroke | measurement | 7.2 | in | 183 | mm | |
| Displacement | measurement | 1105 | in³ | 18.1 | l | |
| Scraper Capacity - Heaped | measurement | 44 | yd³ | 33.6 | m³ | |
| Rated Load | measurement | 104,000 | lb | 47,174 | kg | |
| Capacity - Struck | measurement | 32 | yd³ | 24.5 | m³ | |
| Depth of Cut - Maximum | measurement | 17.3 | in | 417 | mm | |
| Width - Cut - To Router Bits | measurement | 12.5 | ft | 3.8 | m | |
| Ground Clearance - Maximum | measurement | 2.3 | ft | 0.7 | m | |
| Depth of Spread - Maximum | measurement | 26 | in | 660 | mm | |
| Apron Opening | measurement | 92 | in | 2337 | mm | |
| Apron Closure Force | measurement | 39200 | lb | 176 | kN | |
| Top Speed - Loaded | measurement | 34.9 | mile/h | 56.1 | km/h | |
| 1 Forward | measurement | 3.5 | mile/h | 5.7 | km/h | |
| 2 Forward | measurement | 6.5 | mile/h | 10.5 | km/h | |
| 3 Forward | measurement | 7.8 | mile/h | 12.5 | km/h | |
| 4 Forward | measurement | 10.6 | mile/h | 17 | km/h | |
| 5 Forward | measurement | 14.2 | mile/h | 22.8 | km/h | |
| 6 Forward | measurement | 19.2 | mile/h | 30.9 | km/h | |
| 7 Forward | measurement | 25.7 | mile/h | 41.4 | km/h | |
| 8 Forward | measurement | 34.9 | mile/h | 56.1 | km/h | |
| Reverse | measurement | 6.7 | mile/h | 10.8 | km/h | |
| Bowl Cylinder Bore | measurement | 7.08 | in | 180 | mm | |
| Bowl Cylinder Stroke | measurement | 37.4 | in | 950 | mm | |
| Apron Cylinder Bore | measurement | 7.08 | in | 180 | mm | |
| Apron Cylinder Stroke | measurement | 29.92 | in | 759.5 | mm | |
| Steering Circuit (@ High Idle) | measurement | 76.08 | gpm | 288 | L/min | |
| Cushion Hitch Circuit | measurement | 19.54 | gpm | 74 | L/min | |
| Secondary Steering Circuit | measurement | 14.52 | gal/hr | 55 | l/hr | |
| Relief Valve - Steering Circuit | measurement | 1959 | psi | 13500 | kPa | |
| Relief Valve - Implement Circuit | measurement | 1999 | psi | 13780 | kPa | |
| Compensator Settings - Cushion Hitch Circuit | measurement | 3002 | psi | 20700 | kPa | |
| Width - 180° Turn - Right | measurement | 44.6 | ft | 13.6 | m | |
| Width - 180° Turn - Left | measurement | 47.57 | ft | 14.5 | m | |
| Steering Angle - Right | text | 90 | ||||
| Steering Angle - Left | text | 85 | ||||
| Crankcase | measurement | 13.7 | gal (US) | 52.0 | l | |
| Transmission | measurement | 35.9 | gal (US) | 136 | l | |
| Differential | measurement | 36 | gal (US) | 136 | l | |
| Final Drive - Each | measurement | 6.3 | gal (US) | 24.0 | l | |
| Cooling System | measurement | 23.4 | gal (US) | 88.6 | l | |
| Hydraulic Reservoir | measurement | 39.6 | gal (US) | 150 | l | |
| Windshield Washer | measurement | 0.5 | gal (US) | 5 | l | |
| Width - Overall Machine | measurement | 14.3 | ft | 4.36 | m | |
| Width - Tractor | measurement | 11.87 | ft | 3.62 | m | |
| Width - Rear Tire Center Lines | measurement | 9.21 | ft | 2.81 | m | |
| Width - Inside of Bowl | measurement | 12.07 | ft | 3.68 | m | |
| Width - Outside Bowl - Shipping Width | measurement | 12.98 | ft | 3.91 | m | |
| Height - Overall Shipping | measurement | 15.29 | ft | 4.42 | m | |
| Height - Top of Cab | measurement | 12.77 | ft | 3.89 | m | |
| Ground Clearance - Tractor | measurement | 2.3 | ft | 0.7 | m | |
| Front of Tractor to Front Axle | measurement | 14.93 | ft | 3.88 | m | |
| Axle to Vertical Hitch Pin | measurement | 1.8 | ft | 0.55 | m | |
| Height - Scraper Blade Maximum | measurement | 2.17 | ft | 0.66 | m | |
| Wheel Base | measurement | 32.68 | ft | 9.96 | m | |
| Length - Overall Machine | measurement | 58.96 | ft | 17.97 | m | |
| Rear Axle - Rear of Machine | measurement | 8.07 | ft | 2.46 | m | |
| Total Shipping | measurement | 160505 | lb | 72804 | kg | |
| Tractor Shipping | measurement | 93635 | lb | 42472 | kg | |
| Scraper Shipping | measurement | 64068 | lb | 29061 | kg | |
| Total Operating - Empty | measurement | 164,244. | lb | 74500 | kg | |
| Front Axle | measurement | 93842 | lb | 42566 | kg | |
| Rear Axle | measurement | 66663 | lb | 30238 | kg | |
| Total Operating - Loaded | measurement | 268,302. | lb | 121700 | kg | |
| Front Axle - Loaded | measurement | 134165 | lb | 60856 | kg | |
| Rear Axle - Loaded | measurement | 130340 | lb | 59121 | kg | |
| Hyd. Penetration Force - 657G | measurement | 121000 | lb | 542 | kN | |
| Net Power (SAE J1349/ISO 9249) | measurement | 592 | hp | 436 | kW | |
| Crankcase | measurement | 8.9 | gal (US) | 34 | l | |
| Gross Power (SAE J1995) | measurement | 637 | hp | 475 | kW | |
| Net Power (ISO 14396) | measurement | 585 | hp | 436 | kW | |
| Transmission | measurement | 31.9 | gal (US) | 121 | l | |
| Net Power | text | 469 kW/629 hp (ISO 14369:2002) | ||||
| Cooling System | measurement | 16.6 | gal (US) | 63.2 | l | |
| Final Drive - Each | measurement | 7.8 | gal (US) | 30 | l | |
| Fuel Tank | measurement | 430 | gal (US) | 1628 | l | |
| Differential | measurement | 44 | gal (US) | 168 | l |
Standard Equipment
NOTE
- Standard and optional equipment may vary. Consult your Cat dealer for details.
ELECTRICAL
- Alarm, backup
- Alternator, 115 amp - tractor engine
- Alternator, 65 amp - scraper engine
- Batteries Tractor (4), 12V Maintenance Free, High Output
- Batteries Scraper (4), 12V Maintenance Free, High Output
- Electrical System, 24V
- Lighting System - Tractor
- Lighting System - Scraper
- Starting Receptacle - tractor and scraper engines
OPERATOR ENVIRONMENT
- Air Conditioner (includes heater and defroster)
- Automotive style fuse panel with fuse puller
- Lunch box platform with holding strap
- Coat Hook
- Cup holder
- Diagnostic Connection Port (12V)
- Dome Courtesy Light
- Engine speed lock
- Fan defroster
- Gauge Group
- Horn
- Implement Control Joystick
- Rearview Mirrors
- Radio Ready
- 2 radio openings, speakers, and 5-amp converter
- ROPS Cab with Sound Suppression and Pressurization
- Static Seatbelt, 2 piece
- Scraper Engine Controls
- Seat, Air Suspension, Cat Advanced Ride Management
- Steering Wheel - tilt and telescoping
- Storage Compartment
- Transmission Hold
- Windows - sliding side
- Windshield - laminated glass
- Windshield Wiper/Washer - front and rear
- Wrist Rest/Grab Handle
POWER TRAIN
- Tractor
- Scraper
OTHER STANDARD EQUIPMENT
- Tractor
- Scraper