Nā ʻāpana excavator HD450 Track roller

KatoHD450 track rollerʻO ia ka ʻāpana nui o ka chassis o kēia kumu hoʻohālike o ka excavator, i hana ʻia me ke kila kila kiʻekiʻe, hana ʻia a mālama ʻia i ka wela no ka ikaika kiʻekiʻe a me ke kūpaʻa. Aia nā hōʻailona taper ʻelua a me ka hoʻolālā lubrication ola e hoʻololi i nā kūlana hana paʻakikī, hiki ke kākoʻo pono i ke kaumaha o ke kino mīkini a hōʻoia i ka holo mālie o nā ala.