| Mtundu | Kufotokozera | Zinthu Zofunika | Applicabl |
| OTIS | Chiyanjano cha 17/chiyanjano cha 19 | Nayiloni | Chikwere cha Otis |
Ma Escalator swing chains nthawi zambiri amapangidwa ndi zitsulo zolimba kwambiri kuti zitsimikizire kuti zimakhala zolimba komanso zotetezeka. Unyolo wosokera umapangidwa kuti upirire kupsinjika kwakukulu ndi katundu panthawi yogwiritsa ntchito escalator, kotero uyenera kukonzedwa nthawi zonse kuti ugwire ntchito bwino.