Ipayipi lensimbi elishiselwe: Ipayipi lensimbi elinomthungo ebusweni bomucu wensimbi noma ipuleti lensimbi eligobile futhi elikhubazekile libe yindilinga noma umumo oyisikwele. Udonga lwangaphakathi lwepayipi elishiselwe linezimbambo zokushisela. Imikhiqizo eyinhloko ihlanganisa: ipayipi lensimbi le-ERW, ipayipi lensimbi le-LSAW kanye nepayipi lensimbi le-SSAW. Ipayipi lensimbi luhlobo lwensimbi ende engenalutho, esetshenziswa njengendlela yokuhambisa uketshezi, njengamafutha, igesi yemvelo, amanzi, igesi, umusi, njll.