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Spocket Elve kondwi bouteur SD7N (230HP), SD8N (320HP), SD9N (430HP) adopte modilè konsepsyon, kondwi piyon yo elve diminye fòs yo chòk soti nan tè a ak mete nan koupe soti nan sab la ak tè. Se konsa, jwi karakteristik yo ki nan segondè efikasite pouvwa transfè, pri antretyen ki ba: dirab: segondè efikasite k ap travay ak sekirite segondè ko-efikasite pa aplike pou fren toujou ap angaje anbreyaj stimulé pa sous dlo ak idwolik ogmantasyon pou libr, disk mouye ak ajisteman gratis, serye pou pakin.
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Spocket Elevated driving Bulldozer SD7N(230HP), SD8N(320HP), SD9N(430HP) adopts modular design, driving sprocket are elevated to reduce the shock forces from the ground and the wear off from the sand and soil. So enjoy the features of high power transfer efficiency, low maintenance cost：Durable：high working efficiency and high safety co-efficiency by applying for brake constantly engaged clutches boosted by springs and hydraulically boost for disengaged, wet discs with free adjustment, reliable parking.