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

    Up To 8% 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

    Watch

    • 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
    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
    • 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
    • Messenger 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
    • 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
    • Sequence Assist Arrangement
    • Load Assist
    • Cat Grade Control with Load Assist
    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
    OTHER ATTACHMENTS
    • Camera arrangement - WAVS
    • Steering lock - external
    • Cab beacon
    • Air horn
    • Air horn and beacon
    • Fender, scraper
    • Guard, overflow
    • Wiring group
    • Year of manufacture plate
    SERVICE INSTRUCTIONS
    • Film arrangement - U.S. (ANSI)
    • Film arrangement - International (ISO)