Iireyile zesilayidi ze-industrial zenziwa ubukhulu becala ngentsimbi okanye ngentsimbi ekhandiweyo. Ngexesha lokusetyenziswa kwexesha elide, ngenxa yemigangatho eyahlukeneyo yokungqubuzana phakathi kweendawo ezimbini zokunxibelelana, amanqanaba ahlukeneyo emikrwelo kunye noxinzelelo kumphezulu wesilayidi sikaloliwe.