1. Tsarin saka
Tsarin saƙa shine akwatin cam na injin ɗin saka mai zagaye, wanda aka haɗa da silinda, allurar saka, cam, da kuma injin sinker (kawai)na'urar jersey guda ɗayayana da) da sauran sassa.
1. Silinda
Silinda da ake amfani da ita a cikin injin ɗin ɗinki mai zagaye galibi nau'in saka ne, wanda ake amfani da shi don sanya allurar ɗin ɗinki.
2. Cam
Ana kuma kiran cam ɗin kusurwar dutse da kuma kusurwar ruwan chestnut. Yana sarrafa allurar saka da kuma abin nutsewa don yin motsi a cikin ramin silinda bisa ga buƙatun nau'ikan saka na injin ɗin saka mai zagaye. Akwai nau'ikan cam guda biyar: madauri cam (full needle cam), tuck cam (half needle cam), floating cam (flat needle cam), anti-string cam (kitse flower cam), da allura cam (proofing cam).
3. Sinker
Injin saka, wanda aka fi sani da sinker, wani bangare ne na injin saka na musamman ga injinan saka guda daya kuma ana amfani da shi don yin aiki tare da allurar saka don samar da kayayyaki na yau da kullun.
4. Allunan saka
Ana bambanta allurar saƙa da tsayin kararrawa ta wannan samfurin. Aikinta shine kammala aikin daga zare zuwa yadi.
2. Ja da nadawa tsarin
Aikin hanyar ja da lanƙwasa shine a cire yadin da aka saka da injin ɗin saƙa mai zagaye ya saka daga yankin saƙa sannan a murɗa shi (ko a naɗe shi) zuwa wani nau'in fakiti. Tsarin ja da lanƙwasa ya haɗa da mai shimfiɗa yadi (firam ɗin tallafi na yadi), hannun tuƙi, akwatin gear na daidaitawa da sauran sassa. Halayensa sune kamar haka:
1. Akwai makullin shigarwa a ƙarƙashin babban faranti. Lokacin da hannun watsawa mai ƙusa mai siffar silinda ya ratsa ta wani wuri, za a aika da sigina don auna bayanan lanƙwasa na yadin da adadin juyin juya halin injin ɗin ɗinki mai zagaye, ta haka ne za a tabbatar da daidaiton nauyin yadin (yadin da ke faɗuwa).
2. Thesaukar da ƙasaAna sarrafa saurin ta hanyar akwatin gear, tare da gear 120 ko 176, wanda zai iya daidaitawa daidai da buƙatun matsin lamba na zane na nau'ikan alamu da nau'ikan iri daban-daban a cikin kewayon mai faɗi.

3. Tsarin watsawa
Injin watsawa injin ne mai saurin gudu wanda inverter ke sarrafawa. Injin yana amfani da bel ɗin V ko bel ɗin daidaitawa (bel ɗin haƙora) don tuƙa kayan aikin shaft ɗin tuƙi, kuma yana tura shi zuwa babban kayan aikin diski, ta haka yana tuƙa silinda na allurar da ke ɗauke da allurar saƙa don gudu don saƙa. Shaft ɗin tuƙi yana faɗaɗa zuwa babban injin da'ira, yana tuƙa faifan ciyar da zaren don isar da zaren bisa ga adadin. Ana buƙatar injin watsawa don aiki cikin sauƙi ba tare da hayaniya ba.