621 Wheel Tractor-Scraper

621 Wheel Tractor-Scraper

Our wheel tractor-scrapers have long been considered the basic method of moving volumes of material, and the Cat® 621 Wheel Tractor-Scraper is no exception. Known for its ability to be push-loaded and high travel speeds, it’s always an earthmover’s first tool of choice when working in challenging load areas. With an open bowl and a single engine, this machine is designed to handle a wide range of material types ranging from sand to ripped rock 609.6 mm (24 “) or less in size.

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Flywheel Power - Tractor/Scraper304 kW (407 hp)

Scraper Capacity - Heaped24yd³

Top Speed - Loaded33.5mile/h

Width - Overall Machine141.1in

Width - Tractor133.1in

Width - Inside of Bowl120in

Width - Outside Rear Tires128.9in

Height - Overall Shipping158.6in

Height - Top of Cab142.2in

Ground Clearance - Tractor21.9in

Front of Tractor to Front Axle122.8in

Axle to Vertical Hitch Pin21.3in

Height - Scraper Blade Maximum20.5in

Wheel Base314.9in

Rear Axle - Rear of Machine114.1in

Length - Overall Machine - Standard551.8in

Length - Maximum (Push-Pull)613.2in

Width - Overall Machine - Ladder Down149.2in

Width - Rear Tire Centers90.2in

Overall Shipping Height13.22ft

Overall Width11.75ft

Scraper Capacity - Heaped24yd³

Fuel Tank Refill Capacity - Scraper216.1gal (US)

Tires - Scraper33.25R29**E3

Width - Cut10.3ft

Maximum Depth of Spread21.3in

Top Speed - Loaded33.5mile/h

Rated Load26 127 kg (57,610 lb); 26.19 tonnes (28.81 tons)

180° Curb-to-Curb Turning Width38.71ft

Scraper Capacity - Struck17.1yd³

Maximum Depth of Cut12.4in

Tires - Tractor Drive33.25R29**E3

Engine Model - TractorCat C13

Flywheel Power - Tractor407hp

NoteCat C13 engine meets U.S. Environmental Protection Agency (EPA) Tier 4 Final/EU Stage IV engine emission standards.

Rated Engine RPM - Tractor2000r/min

Hydraulic System21.926gal (US)

Crankcase8.08gal (US)

Transmission System24.76gal (US)

Cooling System11.89gal (US)

Fuel Tank216.09gal (US)

Diesel Exhaust Fluid8.057gal (US)

Operating Weight - Empty79787lb

Overall Length45.9ft

Overall Length - With Bail Down51.1ft

Operating Weight - Empty80630lb

Exterior Sound LevelThe exterior sound power level for the standard machine (ISO 6393:2008) is 118 dB(A).

ROPS/FOPSMeets SAE and ISO standards

Rollover Protection Structure (ROPS)ISO 3471:2008 for up to 17 084 kg (37,664 lb)

BrakesISO 3450:1996

Reverse AlarmISO 9533:2010

Falling Object Protective Structure (FOPS)ISO 3449:2005 Level II

Seat BeltSAE J386:JUN1985

Steering SystemISO 5010:2007

Transmission Gear - Seventh24.8mile/h

Transmission Gear - Fifth13.6mile/h

Transmission Gear - First3.1mile/h

Transmission Gear - Sixth18.4mile/h

Transmission Gear - Second5.5mile/h

Transmission Gear - Third7.5mile/h

Transmission Gear - Fourth10.1mile/h

Transmission Gear - Eighth33.5mile/h

Transmission Gear - Reverse5.7mile/h

Apron Raise2.95s

Bowl Raise3s

Ejector Retract6.7s

Bowl Lower3.5s

Apron Lower3.8s

Ejector Extend5.2s

Bail Lower3.2s

Bail Raise1.8s

Standard

Standard and optional equipment may vary. Consult your Cat dealer for details.

Optional

Standard and optional equipment may vary. Consult your Cat dealer for details.

Standard

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

Standard

Braking system: - Primary and secondary, wet disc, hydraulic

Standard

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

Standard

Alarm, backup

Lighting system: - Brake lights, LED - Turn signals with hazard function, LED

Standard

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

Standard

Extended Life Coolant to -37° C (-34° F)

Standard

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

Standard

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

Secondary Steering Arrangement

Optional

Sequence Assist Arrangement

Load Assist

Cat Grade Control with Load Assist

Optional

HID work lights

Optional

Cooling, high ambient HRC

Cooling, low ambient HRC

Cooling, high ambient LRC

Cooling, low ambient LRC

Optional

Camera arrangement - WAVS

Steering lock - external

Cab beacon

Air horn

Air horn and beacon

Fender, scraper

Guard, overflow

Wiring group

Year of manufacture plate

Optional

Film arrangement - U.S. (ANSI)

Film arrangement - International (ISO)

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