New CAT Equipment

621 Wheel Tractor-Scraper

REDFINING YOUR PROFIT POTENTIAL

Quick loading, high travel speeds and the ability to load and dump on the run yield fast cycle times, allowing Cat Wheel Tractor-Scrapers to consistently deliver high productivity at the lowest cost per ton.

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Benefits

Increased Comfort

Ergonomic controls and a newly redesigned cab interior provide a more comfortable and efficient working environment all day long

Improved Productivity

Improvements in fuel efficiency and responsive APECS transmission controls deliver more productivity in most applications

Additional Safety

New safety features help operators be more productive and work more efficiently all day long

Learn more about the 621 Wheel Tractor-Scraper

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  • Cab
    Exterior Sound Level
    The exterior sound power level for the standard machine (ISO 6393:2008) is 118 dB(A).
    ROPS/FOPS
    Meets SAE and ISO standards
  • Dimensions
    Axle to Vertical Hitch Pin
    21.3 in
    Front of Tractor to Front Axle
    122.8 in
    Ground Clearance - Tractor
    21.9 in
    Height - Overall Shipping
    158.6 in
    Height - Scraper Blade Maximum
    20.5 in
    Height - Top of Cab
    142.2 in
    Length - Maximum (Push-Pull)
    613.2 in
    Length - Overall Machine - Standard
    551.8 in
    Rear Axle - Rear of Machine
    114.1 in
    Wheel Base
    314.9 in
    Width - Inside of Bowl
    120 in
    Width - Outside Rear Tires
    128.9 in
    Width - Overall Machine
    141.1 in
    Width - Overall Machine - Ladder Down
    149.2 in
    Width - Rear Tire Centers
    90.2 in
    Width - Tractor
    133.1 in
  • Engine
    Engine Model - Tractor
    Cat® C13
    Flywheel Power - Tractor
    407 hp
    Note
    Cat® C13 engine meets U.S. Environmental Protection Agency (EPA) Tier 4 Final/EU Stage IV engine emission standards.
    Rated Engine RPM - Tractor
    2000 r/min
  • General
    180° Curb-to-Curb Turning Width
    38.71 ft
    Fuel Tank Refill Capacity - Scraper
    216.1 gal (US)
    Maximum Depth of Cut
    12.4 in
    Maximum Depth of Spread
    21.3 in
    Overall Shipping Height
    13.22 ft
    Overall Width
    11.75 ft
    Rated Load
    26 127 kg (57,610 lb); 26.19 tonnes (28.81 tons)
    Scraper Capacity - Heaped
    24 yd³
    Scraper Capacity - Struck
    17.1 yd³
    Tires - Scraper
    33.25R29**E3
    Tires - Tractor Drive
    33.25R29**E3
    Top Speed - Loaded
    33.5 mile/h
    Width - Cut
    10.3 ft
  • Implement Cycle Times
    Apron Lower
    3.8 s
    Apron Raise
    2.95 s
    Bail Lower
    3.2 s
    Bail Raise
    1.8 s
    Bowl Lower
    3.5 s
    Bowl Raise
    3 s
    Ejector Extend
    5.2 s
    Ejector Retract
    6.7 s
  • Non Push-Pull
    Operating Weight - Empty
    79787 lb
    Overall Length
    45.9 ft
  • Push-Pull
    Operating Weight - Empty
    80630 lb
    Overall Length - With Bail Down
    51.1 ft
  • Safety Criteria Compliance Standards
    Brakes
    ISO 3450:1996
    Falling Object Protective Structure (FOPS)
    ISO 3449:2005 Level II
    Reverse Alarm
    ISO 9533:2010
    Rollover Protection Structure (ROPS)
    ISO 3471:2008 for up to 17 084 kg (37,664 lb)
    Seat Belt
    SAE J386:JUN1985
    Steering System
    ISO 5010:2007
  • Scraper Bowl
    Scraper Capacity - Heaped
    24 yd³
  • Service Refill Capacities
    Cooling System
    11.89 gal (US)
    Crankcase
    8.08 gal (US)
    Diesel Exhaust Fluid
    8.057 gal (US)
    Fuel Tank
    216.09 gal (US)
    Hydraulic System
    21.926 gal (US)
    Transmission System
    24.76 gal (US)
  • Tractor Engine
    Flywheel Power - Tractor/Scraper
    304 kW (407 hp)
  • Transmission
    Top Speed - Loaded
    33.5 mile/h
  • Travel Speeds - Runout
    Transmission Gear - Eighth
    33.5 mile/h
    Transmission Gear - Fifth
    13.6 mile/h
    Transmission Gear - First
    3.1 mile/h
    Transmission Gear - Fourth
    10.1 mile/h
    Transmission Gear - Reverse
    5.7 mile/h
    Transmission Gear - Second
    5.5 mile/h
    Transmission Gear - Seventh
    24.8 mile/h
    Transmission Gear - Sixth
    18.4 mile/h
    Transmission Gear - Third
    7.5 mile/h
NOTE
  • Standard and optional equipment may vary. Consult your Cat dealer for details.
POWER TRAIN - TRACTOR
  • Cat® C13 engine with MEUI™
  • Cat engine brake
  • Electric start, 24 Volt
  • Air cleaner, dry type with precleaner
  • Fan, hydraulic
  • Ground level engine shutdown
  • Radiator, aluminum unit core, 9 fins per inch
  • Guard, crankcase
  • Muffler (only for less or non-regulated regions engine arrangement only)
  • Starting aid, ether
  • Braking system: - Primary and secondary, wet disc, hydraulic - Parking, hydraulic-released, spring-applied - Throttle lock
  • Transmission: - 8-speed planetary power shift - ECPC control - APECS software - Programmable top gear selection - Transmission hold - Differential lock - Guard, power train - Standard tire spin reduction - Ground speed control - Machine speed limit - Differential lock protection
INTEGRATED TECHNOLOGIES
  • Sequence Assist and Cat Payload Arrangement
POWER TRAIN - SCRAPER
  • Braking system: - Primary and secondary, wet disc, hydraulic
ELECTRICAL - TRACTOR
  • Alternator, 150 Amp
  • Batteries (4), 12V, 1,000 CCA, maintenance free, high output
  • Electrical system, 24V
  • Lighting system: - Headlights, halogen - Turn signals with hazard function, LED floodlights, (2) cutting edge (1) bowl, halogen side vision (2)
  • Starting/charging receptacle
ELECTRICAL - SCRAPER
  • Alarm, backup
  • Lighting system: - Brake lights, LED - Turn signals with hazard function, LED
OPERATOR ENVIRONMENT - TRACTOR
  • Camera arrangement - WAVS
  • HVAC system, heat, AC, defrost
  • Thermostat control of HVAC system
  • Coat hook
  • Lunchbox platform with holding strap
  • Diagnostic connection (2)
  • 12V power ports (2)
  • Differential lock (1)
  • Dome courtesy light
  • Horn, electric
  • T-Handle implement control
  • Mirror, rearview
  • Radio ready
  • ROPS/FOPS cab, pressurized
  • Keypad switches: - Throttle lock - Wipers/washers - Hazard lights - Retarding level select - Work lights on, off - Information mode on Messenger Display
  • Safety tab rocker switches
  • Seat belt, static two-piece
  • Seat, Cat Advanced Ride Management (ARM), Cat Comfort Series 3, rotates 30 degrees
  • Steering wheel, tilt, telescoping, padded
  • Windows, right side emergency egress
  • Windows, sliding
  • Windows, laminated, zipped in
  • Windshield wipers, front and rear windows, includes washers
  • Door lock
  • Interactive touchscreen vehicle information display
  • Gauges, warnings include: - Coolant temperature - Engine oil temperature - Hydraulic oil temperature - DPF temperature - Fuel level - Park brake - Implement lockout - Brake system - Regeneration required - Throttle lock - System voltage - Secondary steering - Bail down - Ejector auto - Differential lock - Apron float - Transmission hold - Cushion hitch - High beam lights - Action lamp - Engine speed, rpm - Gear selection - DEF fill levels
FLUIDS
  • Extended Life Coolant to -37° C (-34° F)
OTHER STANDARD EQUIPMENT - TRACTOR
  • Advanced cushion hitch
  • Accumulators (cushion hitch) with Canadian Registration Number (CRN)
  • Fast oil change
  • Fenders, non-metallic
  • Heater, engine coolant 120V
  • Rims (2)
  • Tow pin, front
  • Vandalism locks
  • Heater, engine coolant 120V
OTHER STANDARD EQUIPMENT - SCRAPER
  • Fender, scraper
  • Bowl: - 18.4 m3 (24 yd3), heaped - 14.1 m3 (18.4 yd3), struck
  • Vandalism locks
  • Hydraulic position sensing cylinders (bowl lift and apron)
NOTE
  • Standard and optional equipment may vary. Consult your Cat dealer for details.
STEERING ARRANGEMENTS
  • Secondary Steering Arrangement
INTEGRATED TECHNOLOGIES
  • Cat Grade Control, Cat Payload, Sequence Assit, and Load Assist
OTHER ATTACHMENTS
  • Steering lock - external
  • Cab beacon with air horn
  • Air horn
  • Air horn and beacon
  • Wiring group
  • Year of manufacture plate
OTHER STANDARD EQUIPMENT – SCRAPER
  • Bowl overflow guard
WORK LIGHT ATTACHMENTS
  • HID work lights
AMBIENT CAPABILITY ARRANGEMENTS
  • Cooling, high ambient HRC
  • Cooling, low ambient HRC
  • Cooling, high ambient LRC
  • Cooling, low ambient LRC
SERVICE INSTRUCTIONS
  • Film arrangement - U.S. (ANSI)
  • Film arrangement - International (ISO)

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