651

651

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

Tractor Engine Cat® C18
Flywheel Power - Tractor/Scraper 469kW (629 hp)
Scraper Capacity - Heaped 33.6 m³

Technicial Specifications

Engine
Tractor Engine Cat® C18
Tractor Engine
Flywheel Power - Tractor/Scraper 469kW (629 hp)
Bore 145 mm
Stroke 183 mm
Displacement 18.1 l
Net Power (SAE J1349/ISO 9249) 436 kW
Gross Power (SAE J1995) 475 kW
Net Power (ISO 14396) 436 kW
Net Power 469 kW/629 hp (ISO 14369:2002)
Scraper Bowl
Scraper Capacity - Heaped 33.6 m³
Rated Load 47174 kg
Capacity - Struck 24.5 m³
Depth of Cut - Maximum 417 mm
Width - Cut - To Router Bits 3.8 m
Ground Clearance - Maximum 0.7 m
Depth of Spread - Maximum 660 mm
Apron Opening 2337 mm
Apron Closure Force 176 kN
Hyd. Penetration Force - 657G 542 kN
Transmission
Top Speed - Loaded 56.1 km/h
1 Forward 5.7 km/h
2 Forward 10.5 km/h
3 Forward 12.5 km/h
4 Forward 17 km/h
5 Forward 22.8 km/h
6 Forward 30.9 km/h
7 Forward 41.4 km/h
8 Forward 56.1 km/h
Reverse 10.8 km/h
Weights - Push-Pull
Total Shipping 72804 kg
Tractor Shipping 42472 kg
Scraper Shipping 29061 kg
Total Operating - Empty 74500 kg
Front Axle 42566 kg
Rear Axle 30238 kg
Total Operating - Loaded 121700 kg
Front Axle - Loaded 60856 kg
Rear Axle - Loaded 59121 kg
Dimensions
Width - Overall Machine 4.36 m
Width - Tractor 3.62 m
Width - Rear Tire Center Lines 2.81 m
Width - Inside of Bowl 3.68 m
Width - Outside Bowl - Shipping Width 3.91 m
Height - Overall Shipping 4.42 m
Height - Top of Cab 3.89 m
Ground Clearance - Tractor 0.7 m
Front of Tractor to Front Axle 3.88 m
Axle to Vertical Hitch Pin 0.55 m
Height - Scraper Blade Maximum 0.66 m
Wheel Base 9.96 m
Length - Overall Machine 17.97 m
Rear Axle - Rear of Machine 2.46 m
Steering
Width - 180° Turn - Right 13.6 m
Width - 180° Turn - Left 14.5 m
Steering Angle - Right 90
Steering Angle - Left 85
Service Refill Capacities - Tractor
Crankcase 52 l
Transmission 136 l
Differential 136 l
Final Drive - Each 24 l
Cooling System 88.6 l
Hydraulic Reservoir 150 l
Windshield Washer 5 l
Hydraulics
Bowl Cylinder Bore 180 mm
Bowl Cylinder Stroke 950 mm
Apron Cylinder Bore 180 mm
Apron Cylinder Stroke 759.5 mm
Steering Circuit (@ High Idle) 288 L/min
Cushion Hitch Circuit 74 L/min
Secondary Steering Circuit 55 l/hr
Relief Valve - Steering Circuit 13500 kPa
Relief Valve - Implement Circuit 13780 kPa
Compensator Settings - Cushion Hitch Circuit 20700 kPa
Service Refill Capacities - Scraper
Crankcase 34 l
Transmission 121 l
Cooling System 63.2 l
Final Drive - Each 30 l
Fuel Tank 1628 l
Differential 168 l

Advantages and Features

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.

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