Contact Us

621 Wheel Tractor-Scraper

621

Wheel Tractor-Scraper

Price: Request a Quote for Pricing

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.

Key Specs
Flywheel Power – Tractor/Scraper 304 kW (407 hp)
Scraper Capacity – Heaped 24 yd³
Top Speed – Loaded 33.5 mile/h
Request a Quote Get Financing

Product Specifications for 621

Flywheel Power – Tractor/Scraper 304 kW (407 hp)
Scraper Capacity – Heaped 24 yd³
Top Speed – Loaded 33.5 mile/h
Width – Overall Machine 141.1 in
Width – Tractor 133.1 in
Width – Inside of Bowl 120 in
Width – Outside Rear Tires 128.9 in
Height – Overall Shipping 158.6 in
Height – Top of Cab 142.2 in
Ground Clearance – Tractor 21.9 in
Front of Tractor to Front Axle 122.8 in
Axle to Vertical Hitch Pin 21.3 in
Height – Scraper Blade Maximum 21.3 in
Wheel Base 314.9 in
Rear Axle – Rear of Machine 114.1 in
Length – Overall Machine – Standard 551.8 in
Length – Maximum (Push-Pull) 613.2 in
Width – Overall Machine – Ladder Down 149.2 in
Width – Rear Tire Centers 90.2 in
Overall Shipping Height 13.22 ft
Overall Width 11.75 ft
Scraper Capacity – Heaped 24 yd³
Fuel Tank Refill Capacity – Scraper 216.1 gal (US)
Tires – Scraper 33.25R29**E3
Width – Cut 10.3 ft
Maximum Depth of Spread 21.3 in
Top Speed – Loaded 33.5 mile/h
Rated Load 26 127 kg (57,610 lb); 26.19 tonnes (28.81 tons)
180° Curb-to-Curb Turning Width 38.71 ft
Scraper Capacity – Struck 17.1 yd³
Maximum Depth of Cut 12.4 in
Tires – Tractor Drive 33.25R29**E3
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
Hydraulic System 21.926 gal (US)
Crankcase 8.08 gal (US)
Transmission System 24.76 gal (US)
Cooling System 11.89 gal (US)
Fuel Tank 216.09 gal (US)
Diesel Exhaust Fluid 8.057 gal (US)
Operating Weight – Empty 79787 lb
Overall Length 45.9 ft
Overall Length – With Bail Down 51.1 ft
Operating Weight – Empty 80630 lb
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
Rollover Protection Structure (ROPS) ISO 3471:2008 for up to 17 084 kg (37,664 lb)
Brakes ISO 3450:1996
Reverse Alarm ISO 9533:2010
Falling Object Protective Structure (FOPS) ISO 3449:2005 Level II
Seat Belt SAE J386:JUN1985
Steering System ISO 5010:2007
Transmission Gear – Seventh 24.8 mile/h
Transmission Gear – Fifth 13.6 mile/h
Transmission Gear – First 3.1 mile/h
Transmission Gear – Sixth 18.4 mile/h
Transmission Gear – Second 5.5 mile/h
Transmission Gear – Third 7.5 mile/h
Transmission Gear – Fourth 10.1 mile/h
Transmission Gear – Eighth 33.5 mile/h
Transmission Gear – Reverse 5.7 mile/h
Apron Raise 2.95 s
Bowl Raise 3 s
Ejector Retract 6.7 s
Bowl Lower 3.5 s
Apron Lower 3.8 s
Ejector Extend 5.2 s
Bail Lower 3.2 s
Bail Raise 1.8 s
Standard and optional equipment may vary. Consult your Cat dealer for details.
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
Braking system: – Primary and secondary, wet disc, hydraulic
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
Alarm, backup
Lighting system: – Brake lights, LED – Turn signals with hazard function, LED
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
Extended Life Coolant to -37° C (-34° F)
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
Bowl: – 18.4 m3 (24 yd3), heaped – 14.1 m3 (18.4 yd3), struck
Vandalism locks
Hydraulic position sensing cylinders (bowl lift and apron)
Standard and optional equipment may vary. Consult your Cat dealer for details.
Secondary Steering Arrangement
Sequence Assist Arrangement
Load Assist
Cat Grade Control with Load Assist
HID work lights
Cooling, high ambient HRC
Cooling, low ambient HRC
Cooling, high ambient LRC
Cooling, low ambient LRC
Camera arrangement – WAVS
Steering lock – external
Cab beacon
Air horn
Air horn and beacon
Fender, scraper
Guard, overflow
Wiring group
Year of manufacture plate
Film arrangement – U.S. (ANSI)
Film arrangement – International (ISO)