Cholumikizira ichi chimagwiritsidwa ntchito kulumikiza choyendetsera valavu ku tsinde la valavu ndipo ndi gawo lolimba la kapangidwe kake. Chipangizocho ndi chachitsulo chapakati cha kaboni (AISI 1045) chokhala ndi zinc plating. Malekezero onse awiri amapangidwa ndi makina okhala ndi makiyi athyathyathya kuti atumize mphamvu, nthawi zambiri amagwiritsidwa ntchito ndi ma shafts okhazikika.
Mbali ziwiri za bwalo lakunja zili ndi mipata yopangira makina kuti zikhale zosavuta kukanikiza ndi kukonza. Kukula ndi kapangidwe kake zimatha kusinthidwa malinga ndi zofunikira zojambula, kukonza kumachitika ndi zida za CNC, kusinthasintha kwabwino. Koyenera kutsegula ndi kutseka kapena kuyika zinthu pafupipafupi.