Terex THS15 Motorscraper
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The Terex THS15 Motorscraper was a concept machine
scraper Scrape, scraper or scraping may refer to: Biology and medicine * Abrasion (medical), a type of injury * Scraper (biology), grazer-scraper, a water animal that feeds on stones and other substrates by grazing algae, microorganism and other matter ...
displayed for the first time at Minexpo 2000. This machine features some unusual design concepts, including an adjustable cutting edge on the bowl to reduce friction when loading. Other notable features were the rear-mounted drivetrain (there was no engine on the front module) and a
hydrostatic transmission A continuously variable transmission (CVT) is an automatic transmission that can change seamlessly through a continuous range of gear ratios. This contrasts with other transmissions that provide a limited number of gear ratios in fixed steps. T ...
, which featured hydraulic wheel motors. At least two prototypes were made, and these featured noticeable differences in front end styling. A digital copy of the brochure for this machine is available through ozebooks. Both the THS15 scrapers were spotted for sale in used machinery dealers by 2011 and their fate is unknown. Terex never went ahead with production and subsequently abandoned motor scraper manufacture altogether.


Transmission

Hydrostatic transmissions have many benefits; however, they are not usually suited to machines that travel at higher speeds over longer distances. The hydrostatic drive may have been a contributing factor in abandoning the project. Changes in the way earthmoving is done, including the use of
excavator Excavators are heavy construction equipment consisting of a boom, dipper (or stick), bucket and cab on a rotating platform known as the "house". The house sits atop an undercarriage with tracks or wheels. They are a natural progression fro ...
s and dumptrucks, has also eroded the market for scrapers. Therefore, this machine exhibited many revolutionary design concepts but was probably too costly to put into production in a declining market sector.


References

*THS 15 original manufactures brochure dated 2001 *Ozebooks *Haddock, Keith. "The earthmoving Encyclopedia" Motorbooks {{inline, date=June 2024 Terex vehicles