Idromu ye-rope rope yeyona nto iphambili yendlela yokuthetha, indlela yokuphumelela okanye indlela yokuhambisa i-crane. Isetyenziselwa umoya, ivenkile kwaye ukhulule intambo ye-wire ukufezekisa intshukumo yokuphakamisa okanye ngokuthembekileyo komthwalo. Uyilo lwayo luchaphazela ngokuthe ngqo ubomi lwentambo yocingo, ukugungqa komsebenzi kunye nokukhuseleka komatshini uphela.
I-1. Iindidi ze-crane dring
(1) Ukwahlulahlulwa kweFope Groove for
Idrum emnyama (akukho rope) Ilungele imimoya emininzi, kodwa intambo yocingo kulula ukuba inyibilikiswe kwaye inxibe, isetyenziselwa iindlela zokwenza izinto okanye izixhobo zethutyana.
I-Spiral Groove Drum (umaleko-moya)
Umphezulu wenziwa ngentambo ye-spiral grooves ukukhokela intambo yocingo ukucwangcisa ngendlela elungelelanisiweyo, ukunciphisa uxinzelelo kunye nokunyusa ubomi (olona hlobo luqhelekileyo).
I-Groove esemgangathweni: Uhlobo lwendalo iphela, ilungele uninzi lwamaqhinga.
I-Groove esenzulu
(2) Ukwahlulahlulwa ngokwemo
Isigubhu esinye
Intambo enye kuphela intambo, isetyenziselwa ukuphakamisa intambo okanye i-raction enye yokuphakamisa.
Idrum ephindwe kabini
Iintambo ze-wire zinenxeba kwiziphelo zombini, zisetyenziselwa inkqubo yokulungelelanisa kabini (njengenkqubo yokulinganisa).
