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621 Open Bowl Scrapers

Maximum Depth of Cut
12.4 in
315 mm
Fuel Tank Refill Capacity - Scraper
216.1 gal (US)
818 l
180° Curb-to-Curb Turning Width
38.71 ft
11.8 m

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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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Product specifications for 621 Open Bowl Scrapers

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.

General
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Maximum Depth of Cut 12.4 in 315 mm
Fuel Tank Refill Capacity - Scraper 216.1 gal (US) 818 l
180° Curb-to-Curb Turning Width 38.71 ft 11.8 m
Scraper Capacity - Heaped 24 yd³ 18.4 m³
Overall Width 11.75 ft 3.58 m
Maximum Depth of Spread 21.3 in 540 mm
Overall Shipping Height 13.22 ft 4.03 m
Tires - Tractor Drive 33.25R29**E3
Width - Cut 10.3 ft 3.14 m
Scraper Capacity - Struck 17.1 yd³ 13 m³
Top Speed - Loaded 33.5 mile/h 53.9 km/h
Tires - Scraper 33.25R29**E3
Rated Load 26 127 kg (57,610 lb); 26.19 tonnes (28.81 tons)

BE MORE PRODUCTIVE

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BE MORE PRODUCTIVE

        
  • Advanced Productivity Electronic Control System (APECS) allows the engine and transmission to communicate on a high level. This communication allows the machine to utilize better the power and torque the engine is producing. The net result is moving more material.
    •     
  • Use Ground Speed Control to set the desired top speed and the machine will find the gear that works best for the engine and the transmission, providing a lower fuel burn.
    •     
  • The Machine Speed Limit feature replaces Top Gear Selection.
    •     
  • Auto-Stall assists in quickly bringing the transmission to an operating temperature at start-up when the machine is working in a cold climate region.
    •     
  • Boost productivity with the Cat Payload feature (optional attachment). Cat Payload is an automatic feature when ordered with Sequence Assist.
    •     
  • Cat Payload for scrapers is an earthmoving solution for optimal payload and job site efficiency. Cat Payload achieves on-the-go weighing by using bowl lift cylinder pressure during the loaded haul segment. Cat Payload is optimized to be used with Sequence Assist, which provides increased productivity with less operator effort.



WORK IN COMFORT

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WORK IN COMFORT

        
  • Reduce up to 14 individual operator commands per cycle with Sequence Assist (optional attachment).
    •     
  • Steer with less effort using the newly designed high-pressure 
    steering system.
    •     
  • Enjoy interior improvements and a more ergonomic work environment
     with a 21% larger cab than the G Series cab.
    •     
  • Intuitive, ergonomic controls keep operators focused on their work.
    •     
  • Maintain desired cab temperature with automatic temperature 
    control.

DESIGNED FOR SAFETY

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DESIGNED FOR SAFETY

        
  • Enhance an operator’s awareness of site surroundings with the
     Work Area Vision System (WAVS).
    •     
  • Seat belt indicator provides visual and audible alerts when the seat
    belt is not in use.
    •     
  • Advanced Cushion Hitch allows the cushion hitch to prevent end
    stroke by predicting endstroke events and managing the
     rate of dampening, resulting in reduced hitch maintenance and improved
     operator ride in rough conditions.

EASY TO OPERATE

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EASY TO OPERATE

        
  • The spacious cab features easy, intuitive controls and excellent visibility
    . The cab provides a comfortable working environment for all-day
     operations.
    •     
  • Cat Advanced Ride Management (ARM) seat suspension reduces
     endstroke movement of the load cylinder for a smoother ride.
    •     
  • Engine overspeed protection will automatically engage with no operator
     input when the machine is in eighth gear. The machine will
     assist in slowing the machine's speed by canceling the throttle command
     and engaging the engine compression brake.

INTEGRATED CAT TECHNOLOGIES

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INTEGRATED CAT TECHNOLOGIES

        
  • Monitor, manage, and enhance job site operations.
    •     
  • Hit target grade faster and more accurately with Cat GRADE technologies. Finish jobs in fewer passes and with less operator effort, saving you time and helping to increase profit.
    •     
  • Vision Link™ collects machine data that can be viewed online through web and mobile applications (optional attachment).
    •     
  • Access information anytime, anywhere with Vision Link®– use it to make informed decisions that boost productivity, lower costs, simplify maintenance, and improve safety and security on your job site.
    •     
  • Shorten the learning curve for inexperienced operators with Cat grade control and load assist. (optional attachment).

EXECUTE EFFICIENCY

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EXECUTE EFFICIENCY

        
  • The new tractor hydraulic on-demand fan helps assist in lower fuel consumption.
    •     
  • The Cat C13 tractor engine meets U.S. EPA Tier 4 Final or EU Stage V emission standards, contributing to lower fuel consumption.
    •     
  • Using draft-arm overflow guards, diverts material away from the bowl, preventing material from getting caught between the draft arms and the bowl sides.
    •     
  • Cat Grade Control (optional attachment) intelligently ensures the machine does not cut below grade in a cut area or overfill in the fill area.

621 Standard Equipment

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

621 Optional Equipment

NOTE
expand / collapse icon
  • Standard and optional equipment may vary. Consult your Cat dealer for details.

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Overall Shipping Height
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Overall Width
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Scraper Capacity - Heaped
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