651
651 Wheel Tractor-Scraper
DESCRIPTION
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 timeBE 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.
- Standard Equipment
- Specs
- Docs
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
Specs
Overview
Long Name:
651 Wheel Tractor-Scraper
Name:
651
Brand:
Caterpillar
Status:
Current
Engine
Tractor Engine
Cat® C18
Tractor Engine
Flywheel Power - Tractor/Scraper
469kW (629 hp)
Bore
5.7 in / 145 mm
Stroke
7.2 in / 183 mm
Displacement
1105 in³ / 18.1 l
Scraper Bowl
Scraper Capacity - Heaped
44 yd³ / 33.6 m³
Rated Load
104000 lb / 47174 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
Depth of Spread - Maximum
26 in / 660 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 gpm / 288 L/min
Cushion Hitch Circuit
19.54 gpm / 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) / 52 l
Transmission
35.9 gal (US) / 136 l
Differential
36 gal (US) / 136 l
Final Drive - Each
6.3 gal (US) / 24 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
11.87 ft / 3.62 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 / 3.91 m
Height - Overall Shipping
15.29 ft / 4.42 m
Height - Top of Cab
12.77 ft / 3.89 m
Ground Clearance - Tractor
2.3 ft / 0.7 m
Front of Tractor to Front Axle
14.93 ft / 3.88 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
Scraper Bowl
Hyd. Penetration Force - 657G
121000 lb / 542 kN
Tractor Engine
Net Power (SAE J1349/ISO 9249)
592 hp / 436 kW
Service Refill Capacities - Scraper
Crankcase
8.9 gal (US) / 34 l
Tractor Engine
Gross Power (SAE J1995)
637 hp / 475 kW
Net Power (ISO 14396)
585 hp / 436 kW
Service Refill Capacities - Scraper
Transmission
31.9 gal (US) / 121 l
Tractor Engine
Net Power
469 kW/629 hp (ISO 14369:2002)
Service Refill Capacities - Scraper
Cooling System
16.6 gal (US) / 63.2 l
Final Drive - Each
7.8 gal (US) / 30 l
Fuel Tank
430 gal (US) / 1628 l
Differential
44 gal (US) / 168 l
SEE HOW 651 COMPARES AGAINST FREQUENTLY COMPARED PRODUCTS.
Open Bowl Scrapers
651
- Brand
- Caterpillar
- Status
- Current
- Flywheel Power - Tractor/Scraper
- 469kW (629 hp)
- Scraper Capacity - Heaped
- 44 yd³ / 33.6 m³
- Rated Load
- 104000 lb / 47174 kg
- Top Speed - Loaded
- 34.9 mile/h / 56.1 km/h
- Width - Overall Machine
- 14.3 ft / 4.36 m
- Width - Tractor
- 11.87 ft / 3.62 m
- Width - Inside of Bowl
- 12.07 ft / 3.68 m
- Width - Outside Bowl - Shipping Width
- 12.98 ft / 3.91 m
- Height - Overall Shipping
- 15.29 ft / 4.42 m
- Height - Top of Cab
- 12.77 ft / 3.89 m
- Ground Clearance - Tractor
- 2.3 ft / 0.7 m
- Front of Tractor to Front Axle
- 14.93 ft / 3.88 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
- Rear Axle - Rear of Machine
- 8.07 ft / 2.46 m
- Fuel Tank
- 430 gal (US) / 1628 l
Selected Model
Open Bowl Scrapers
637
- Brand
- Caterpillar
- Status
- Current
- Flywheel Power - Tractor/Scraper
- 570 hp / 425 kW
- Scraper Capacity - Heaped
- 34 yd³ / 26 m³
- Rated Load
- 37 200 kg (82,200 lb); 37.2 tonnes (41.1 tons)
- Top Speed - Loaded
- 34.7 mile/h / 55.8 km/h
- Width - Overall Machine
- 155 in / 3937 mm
- Width - Tractor
- 137.8 in / 3499 mm
- Width - Inside of Bowl
- 134 in / 3404 mm
- Width - Outside Bowl - Shipping Width
- 143.1 in / 3635 mm
- Height - Overall Shipping
- 163.2 in / 4145 mm
- Height - Top of Cab
- 149.8 in / 3805 mm
- Ground Clearance - Tractor
- 26.1 in / 664 mm
- Front of Tractor to Front Axle
- 142.2 in / 3612 mm
- Axle to Vertical Hitch Pin
- 20 in / 509 mm
- Height - Scraper Blade Maximum
- 20 in / 510 mm
- Wheel Base
- 346.8 in / 8808 mm
- Rear Axle - Rear of Machine
- 90.2 in / 2292 mm
- Fuel Tank
- 370 gal (US) / 1400 l
Open Bowl Scrapers
657
- Brand
- Caterpillar
- Status
- Current
- Flywheel Power - Tractor/Scraper
- 469kW (637 hp) / 353 kW (479 hp)
- Scraper Capacity - Heaped
- 44 yd³ / 33.6 m³
- Rated Load
- 104000 lb / 47174 kg
- Top Speed - Loaded
- 33 mile/h / 56.1 km/h
- Width - Overall Machine
- 14.3 ft / 4.36 m
- Width - Tractor
- 12.3 ft / 3.62 m
- Width - Inside of Bowl
- 12.07 ft / 3.68 m
- Width - Outside Bowl - Shipping Width
- 12.84 ft / 3.91 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 / 4.63 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
- Rear Axle - Rear of Machine
- 8.07 ft / 2.46 m
- Fuel Tank
- 430 gal (US) / 1628 l