Mitundu ya zida zotseketsa pafupipafupi:

Makina amakono ozimitsa othamanga kwambiri ndi opulumutsa mphamvu, amapulumutsa mphamvu komanso amagwira ntchito bwino kuposa makina azimitsira achikhalidwe. Ikhoza kugawidwa m’magulu otsatirawa:

1. Zida zopangira ma frequency apamwamba ziyenera kutenthedwa ndikuzimitsidwa: Mtundu uwu umagwiritsidwa ntchito mwapadera kuzimitsa magiya osiyanasiyana. Pambuyo pa njirayi, magiya amakhala olimba komanso osavala.

2. Makina otenthetsera kutentha kwa shaft: Mtundu uwu umagwiritsidwa ntchito mwapadera kuzimitsira pamwamba pazitsulo zosiyanasiyana, zomwe zidzawonjezera kuuma kwa shaft pamwamba ndikupangitsa kuti ikhale yolimba komanso yosavala.

3. Makina owongolera njanji yozimitsa njanji yozimitsa: Mtundu uwu umagwiritsidwa ntchito mwapadera pakuzimitsa njanji yowongolera monga kuzimitsa njanji imodzi, kuzimitsa njanji yowongolera njanji, kuzimitsa njanji yowongolera ndege, ndi zina zambiri.