Don maganadisu na tukunyar ƙirƙira, ramin ƙwanƙwasa na maganadisu na tukunyar ana sarrafa shi daga saman mashin ɗinNeodymium Disc maganadisuzuwa cikin magnet,Neodymium countersunk maganadisu. Ya zama ruwan dare a fagen kera injina da gini don shigar da bolts ko wasu sassan haɗin gwiwa. Ramin countersunk zai iya guje wa fitowar dunƙule kuma ya tabbatar da lebur ɗin jirgin sama. Hanyar sarrafa ramin countersunk ya haɗa da aikin hakowa da sarrafa magudanar ruwa. An raba counterbore zuwa lebur ƙasa counterbore da mazugi counterbore. Ko da wane irin nau'in ƙira, ya zama dole a fara haƙa babban ta hanyar rami tare da ɗigon buɗaɗɗen, sannan zaɓi kayan aiki daban-daban don sarrafa ƙwayar cuta bisa ga siffar countersink. Wajibi ne a niƙa ma'aunin ƙirƙira ta ƙarshen niƙa abin yanka bisa tushen hakowa. Wajibi ne a ƙididdigewa a kan ramin da aka haƙa tare da ƙarami mai girma. A cikin aiwatar da kayan aikin counterbore, aikin aikin ya kamata a sanya shi sau ɗaya don tabbatar da haɗin gwiwa na rami da ƙwanƙwasa.
Saboda wannan tsari mai sauƙi, yana da sauƙaƙa sosai don toshe ƙulle-ƙulle ta hanyar ramin maganadisu na wiwi. Ana ganinsa ko'ina a masana'antu, sito, ko ma amfanin yau da kullun.
Lambar Sashe | D | d1 | d2 | H | Karfi | Cikakken nauyi | Matsakaicin Yanayin Aiki | ||
mm | mm | mm | mm | kg | lbs | g | °C | °F | |
HM-A16 | 16 | 3.5 | 6.5 | 5.0 | 6 | 13 | 5.5 | 80 | 176 |
HM-A20 | 20 | 4.5 | 8.5 | 7.0 | 11 | 24 | 12 | 80 | 176 |
HM-A25 | 25 | 5.5 | 10.5 | 8.0 | 20 | 44 | 21 | 80 | 176 |
HM-A32 | 32 | 5.5 | 10.5 | 8.0 | 32 | 70 | 37 | 80 | 176 |
HM-A36 | 36 | 6.5 | 12.0 | 8.0 | 42 | 92 | 45 | 80 | 176 |
HM-A42 | 42 | 6.5 | 12.0 | 9.0 | 66 | 145 | 72 | 80 | 176 |
HM-A48 | 48 | 8.5 | 16.0 | 11.5 | 80 | 176 | 125 | 80 | 176 |
HM-A60 | 60 | 8.5 | 16.0 | 15.0 | 112 | 246 | 250 | 80 | 176 |
HM-A75 | 75 | 10.5 | 19.0 | 18.0 | 162 | 357 | 465 | 80 | 176 |