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621K Wheel Tractor-Scraper

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.

CONTENT COMING SOON
CONTENT COMING SOON

Please call for rates.

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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