651

651 Wheel Tractor-Scraper

651

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 time

BE MORE PRODUCTIVE

  • Move more material with Advanced Productivity Electronic ControlSystem (APECS), which allows the machine to better utilize engine power and torque.
  • Set the desired top speed with Ground Speed Control, and the machine will find the gear that works best for the engine and the transmission, providing a lower fuel burn in speed reduced areas.
  • The Machine Speed Limit feature replaces Top Gear Selection.
  • Auto-Stall assists in quickly bringing the transmission to an operating temperature at start-up when working in colder climates.
  • Cat Payload Estimator for scrapers achieves on-the-go weighing to deliver optimal payload and jobsite efficiency.

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 (optional attachment).
  • 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 new powered access
    ladder system.
  • Enhance the operator’s awareness of site surroundings with the
    optional Work Area Vision System (WAVS).
  • 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.Wide brake shoes and brake drums improve brake performance and reduce brake and drum wear
  • Separate front and rear circuits. Secondary brakes engage automatically if service pressure drops
  • Parking Brake features a spring-applied, hydraulic pressure released mechanism that operates the service brakes

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.

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 jobsite.
  • Product Link™
    collects machine data that can be viewed online
    through web and mobile applications (optional attachment).

  • 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:
Cat
Status:
Current

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

SEE HOW 651 COMPARES AGAINST FREQUENTLY COMPARED PRODUCTS.

Open Bowl Scrapers
651
651
Brand
Cat
Status
Current
Flywheel Power - Tractor/Scraper
469kW (629 hp)
Scraper Capacity - Heaped
44 yd³ / 33.6 m³
Rated Load
104058 lb / 47200 kg
Top Speed - Loaded
34.9 mile/h / 56.1 km/h
Crankcase
8.9 gal (US) / 34 l
Cooling System
16.6 gal (US) / 63.2 l
Width - Overall Machine
14.3 ft / 4.36 m
Width - Tractor
12.3 ft / 3.75 m
Width - Inside of Bowl
12.07 ft / 3.68 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
Rear Axle - Rear of Machine
8.07 ft / 2.46 m
Fuel Tank
430 gal (US) / 1628 l
Selected Model
Open Bowl Scrapers
621
621
Brand
Caterpillar
Status
Current
Flywheel Power - Tractor/Scraper
304 kW (407 hp)
Scraper Capacity - Heaped
24 yd³ / 18.4 m³
Rated Load
26 127 kg (57,610 lb); 26.19 tonnes (28.81 tons)
Top Speed - Loaded
33.5 mile/h / 53.9 km/h
Crankcase
8.08 gal (US) / 30.58 l
Cooling System
11.89 gal (US) / 45 l
Width - Overall Machine
141.1 in / 3585 mm
Width - Tractor
133.1 in / 3381 mm
Width - Inside of Bowl
120 in / 3048 mm
Height - Overall Shipping
158.6 in / 4029 mm
Height - Top of Cab
142.2 in / 3612 mm
Ground Clearance - Tractor
21.9 in / 557 mm
Front of Tractor to Front Axle
122.8 in / 3119 mm
Axle to Vertical Hitch Pin
21.3 in / 540 mm
Height - Scraper Blade Maximum
20.5 in / 520 mm
Wheel Base
314.9 in / 7998 mm
Rear Axle - Rear of Machine
114.1 in / 2898 mm
Fuel Tank
216.09 gal (US) / 818 l
More Details
Open Bowl Scrapers
657
657
Brand
Caterpillar
Status
Current
Flywheel Power - Tractor/Scraper
469kW (629 hp) / 353 kW (473 hp)
Scraper Capacity - Heaped
44 yd³ / 33.6 m³
Rated Load
104058 lb / 47200 kg
Top Speed - Loaded
33 mile/h / 56.1 km/h
Crankcase
8.9 gal (US) / 34 l
Cooling System
16.6 gal (US) / 63.2 l
Width - Overall Machine
14.3 ft / 4.36 m
Width - Tractor
12.3 ft / 3.75 m
Width - Inside of Bowl
12.07 ft / 3.68 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
Rear Axle - Rear of Machine
8.07 ft / 2.46 m
Fuel Tank
430 gal (US) / 1628 l
More Details