621K Wheel Tractor-Scraper

Product description

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.

Tractor Engine
  • Flywheel Power - Tractor/Scraper - 304 kW (407 hp)
Scraper Bowl
  • Scraper Capacity - Heaped - 24yd³
Transmission
  • Top Speed - Loaded - 33.5mile/h
Dimensions
  • Width - Overall Machine - 141.1in
  • Width - Tractor - 133.1in
  • Width - Inside of Bowl - 120in
  • Width - Outside Rear Tires - 128.9in
  • Height - Overall Shipping - 158.6in
  • Height - Top of Cab - 142.2in
  • Ground Clearance - Tractor - 21.9in
  • Front of Tractor to Front Axle - 122.8in
  • Axle to Vertical Hitch Pin - 21.3in
  • Height - Scraper Blade Maximum - 20.5in
  • Wheel Base - 314.9in
  • Rear Axle - Rear of Machine - 114.1in
  • Length - Maximum (Push-Pull) - 613.2in
  • Length - Overall Machine - Standard - 551.8in
  • Width - Rear Tire Centers - 90.2in
  • Width - Overall Machine - Ladder Down - 149.2in
General
  • Maximum Depth of Cut - 12.4in
  • Maximum Depth of Spread - 21.3in
  • 180° Curb-to-Curb Turning Width - 38.71ft
  • Scraper Capacity - Struck - 17.1yd³
  • Tires - Scraper - 33.25R29**E3
  • Overall Width - 11.71ft
  • Overall Shipping Height - 13.22ft
  • Width - Cut - 10.3ft
  • Tires - Tractor Drive - 33.25R29**E3
  • Top Speed - Loaded - 33.5mile/h
  • Fuel Tank Refill Capacity - Scraper - 201gal (US)
  • Scraper Capacity - Heaped - 24yd³
  • Rated Load - 26 127 kg (57,610 lb); 26.19 tonnes (28.81 tons)
Engine
  • Rated Engine RPM - Tractor - 2000r/min
  • Engine Model - Tractor - Cat C13
  • Flywheel Power - Tractor - 407HP
  • Note - Cat C13 engine meets U.S. Environmental Protection Agency (EPA) Tier 4 Final/EU Stage IV engine emission standards.
Service Refill Capacities
  • Hydraulic System - 21.926gal (US)
  • Cooling System - 11.89gal (US)
  • Fuel Tank - 216.09gal (US)
  • Crankcase - 8.08gal (US)
  • Diesel Exhaust Fluid - 8.057gal (US)
  • Transmission System - 24.76gal (US)
Non Push-Pull
  • Overall Length - 45.9ft
  • Operating Weight - Empty - 79787lb
Push-Pull
  • Operating Weight - Empty - 80630lb
  • Overall Length - With Bail Down - 51.1ft
Cab
  • ROPS/FOPS - Meets SAE and ISO standards
  • Exterior Sound Level - The exterior sound power level for the standard machine (ISO 6393) is 111.5 dB(A).
Safety Criteria Compliance Standards
  • Brakes - ISO 3450:1996
  • Seat Belt - SAE J386:JUN1985
  • Steering System - ISO 5010:2007
  • Reverse Alarm - ISO 9533:2010
  • Rollover Protection Structure (ROPS) - ISO 3471:2008 for up to 17 084 kg (37,664 lb)
  • Falling Object Protective Structure (FOPS) - ISO 3449:2005 Level II
Travel Speeds - Runout
  • Transmission Gear - Sixth - 18.4mile/h
  • Transmission Gear - Fifth - 13.6mile/h
  • Transmission Gear - Reverse - 5.7mile/h
  • Transmission Gear - Second - 5.5mile/h
  • Transmission Gear - Third - 7.5mile/h
  • Transmission Gear - First - 3.1mile/h
  • Transmission Gear - Eighth - 33.5mile/h
  • Transmission Gear - Fourth - 10.1mile/h
  • Transmission Gear - Seventh - 24.8mile/h
Implement Cycle Times
  • Bail Lower - 3.2s
  • Bail Raise - 1.8s
  • Apron Lower - 3.8s
  • Apron Raise - 2.95s
  • Ejector Extend - 5.2s
  • Ejector Retract - 6.7s
  • Bowl Raise - 3s
  • Bowl Lower - 3.5s
Standard Equipment:
  • 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)
Optional Equipment:
  • 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
  • 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
  • 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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