HIGH PROFILE
Scraper dozing
Alexander Topf , Deputy CEO of Mining Construction International GmbH ( MCI ) outlines the potential of the Scrapedozer , which brings together the capabilities of two well known earthmoving equipment types in one unit
Scrapedozers are becoming increasingly popular when it comes to bulk earthmoving between 50 and 500 m in distance as they offer many advantages over conventional transport solutions such as crawler dozers , motor scrapers or excavators used in conjunction with dump trucks in the 45 t class . The new SR-T18 sets new standards in this respect .
While Scrapedozers have been on the market for over 50 years , the new SR-T18 is the largest and most efficient Scraperdozer ever built . Packed with new technology , one trump card in particular stands out : high performance over long transport distances . The new SR-T18 delivers a full 400 m ³/ h over a distance of 120 m , a remarkable figure when you consider that compared to the crawler dozer size and weight class of a Caterpillar D8 , it is 3.3 times the amount of material .
An 18 m ³ bucket volume in combination with a Mercedes Benz type OM 502 LA V-8 engine with a full 480 hp are responsible for such a performance and accelerate the crawler to 21 km / h . This makes the SR-T18 one of the fastest crawler vehicles for mass earthmoving .
Of course , all these features are reflected in the operational costs , which are significantly reduced on a per m ³/ h basis , making the machine
The SR-T18 Scrapedozer has proved its worth in numerous challenging environments including arid deserts
very economical . No wonder , where normally at least two machines are needed : the Scrapedozer combines four working steps in one machine : loosening , loading , transporting and installing . Conventionally , this would require a loader such as an excavator / wheel loader with a truck / tipper and then a crawler dozer to place the material .
This equipment becomes superfluous in certain cases where the Scrapedozer is used . And this is especially the case in the range of 50 to 500 m . You save on equipment and the associated service , fuel and personnel costs . With the dozer blade , additional work such as road construction , levelling and bulk earth shifting can also be carried out over short distances .
The Austrian mining machinery supplier MCI Mining Construction International GmbH and Scrapedozer AG are responsible for worldwide sales . And they mainly rely on components that are readily and commonly available on the world market in order to make the machine attractive
The new SR-T18 delivers a full 400 m / h over a distance of 120 m
Scrapedozers have been very successful in brick clay extraction even for more remote regions where wear parts or spare parts are more difficult to obtain . For example , the undercarriage is from Intertractor and the engine is from Mercedes Benz . The SR- 18 ' s smaller brother is the SR-T12 , which is somewhat smaller but lighter with a bucket capacity of 12 m ³.
Up to the present model , a lot has been done with the control system and the SR-T18 Scrapedozer is very easy to operate . The entire machine can be controlled with just two joysticks and offers a clear user interface in which the number of passes made is automatically counted .
Mining companies that have to work with silty or cohesive material such as clay , bauxite , overburden or gravel have been particularly impressed by the efficiency and versatility of the
10 International Mining | MAY 2021