A cikin EPS Raw Beads, akwai iskar gas da ake kira Pentneane. Bayan tururi, Pentane ya fara fadada haka girman bead kuma yana ƙaruwa sosai, wannan ana kiransa fadada. EPS Raw Beads ba za a iya amfani da su don yin tubalan samfuri kai tsaye, duk beads suna buƙatar fadada da farko da farko sannan sa wasu samfuran. Yankunan samfuri an yanke hukunci ne yayin preexpanding, don haka ana aiwatar da tsari mai yawa a preexpander.

EPS pre - Mai yaduwa tare da fadada na biyu yana aiki don fadada EPS Raw kayan da ake buƙata a cikin shan albarkatu na biyu da kuma fitar da mashin na biyu don samun ƙarancin yawa.
EPS Pre - Mai yaduwa cikakke tare da dunƙule mai jigilar kaya, mai ɗaukar hoto na farko da na biyu, companyen fadada, ƙwanƙwasa

EPS pre - Sadarwa tare da fadada na biyu shine nau'in injin EPS yana aiki tare da sarrafa na inji. EPS Raw kayan da aka fara daga Wuraren Wuta don fadada mai ba da kaya. A kasan mai ɗaukar kaya shine dunƙule, don matsar da kayan daga mai ɗaukar kaya zuwa ɗakin fadada ɗakin. A lokacin tururi, shaft na jin zafi yana motsawa koyaushe don yin ɓarna da abu har ma da uniform. Raw kayan aiki ya motsa zuwa ɗakunan ajiya, kuma bayan tururi, matakin ci gaba ya hau sama, to matakin na ya zo daidai da tashar bude tashar farawa, sannan kayan zasu kwarara ta atomatik. Girman budewar shine, tsawon abin ya ci gaba da kasancewa a cikin ganga, don haka ƙananan yawa yana; Researancin buɗewar shine, gajere kayan ya tsaya a cikin ganga, don haka mafi girman yawa shine. Ikon cigaba pre - na'ura fadada na'urar mai sauqi ne. Ko Steam Steam ya tabbata ko ba shi da babban tasiri a kan yawan faɗaɗa. Saboda haka, ci gaba da pre - Fadada injina yana sanye da matsin Jafananci yana rage bawul. Don yin matsin lamba a cikin injin ɗin da ya fi ƙarfi, muna amfani da dunƙule don ciyar da kayan a saurin suttura, da kuma suturar rigar, da kuma sutura ta hannu kamar yadda zai yiwu.