Zopangira za JPCF zamtundu umodzi wamkati wowongoka wowongoka ndizophatikizana zaposachedwa kwambiri. Amapangidwa ndi nickel yokutidwa ndi zinthu zonse zamkuwa, zomwe zimakhala ndi kukana kwa dzimbiri komanso kukana kuvala, ndipo zimatha kugwiritsidwa ntchito m'malo osiyanasiyana ovuta.
Cholumikizira ichi chimagwiritsa ntchito mawonekedwe olumikizana ndi kukhudza kumodzi, zomwe zimapangitsa kuti zikhale zosavuta kulumikiza ndikudula ma hoses. Mapangidwe ake amkati omwe amapangidwa molunjika amalola gasi kuyenda bwino m'malo olumikizirana, kuwonetsetsa kuti ma pneumatic amayenda bwino. Ilinso ndi ntchito yabwino yosindikiza, yomwe ingalepheretse bwino kutulutsa mpweya.
The JPCF mndandanda zolumikizira chimagwiritsidwa ntchito kachitidwe pneumatic, monga wothinikizidwa zida mpweya ndi makina pneumatic. Atha kugwiritsidwa ntchito m'mizere yopanga mafakitale, kukonza magalimoto, kukonza makina, ndi zina. Malumikizidwewa ndi osavuta kukhazikitsa ndikugwira ntchito, zomwe zimatha kuwongolera bwino ntchito.