ʻO nā mea maikaʻi o nā crafles strlery hydraulic he 5 mau papa hana likeʻole e like me ka grapple mechanical,ʻaʻole naʻe,ʻo ka gratdraulic grapple i hana houʻia. Ua laweʻia nā peni kila kila e like me nā manamana lima graple aʻo ka mea e kau ana i ka mea hoʻopiʻi a me nā mea hana i hoʻopauʻia i nā'ōlelo aʻoaʻo. ʻElua mau cylinder cylinder e kāohi i ka graple i wehe a paniʻia. ʻO ka hoʻolālāʻana o nā cylindersʻelua e hāʻawi ana i kēlā me kēiaʻaoʻao e hāʻawi i ka grapple i ka ikaika nui e hopu ai i kahi mea maʻalahi a wāwahi paha i kahi mea i loko o keʻano.
