Model GB 4-tandem (2/6-tandem) bakin karfe zafin jiki-sarrafawa colormetric ganguna kunshi hudu, biyu ko shida kananan bakin karfe ganguna, wanda duk iri daya domin hudu, biyu ko shida gwaje-gwaje za a iya za'ayi a lokaci guda, ta haka cimma mafi kyau result.The sanye take da interlayer dumama da kuma zafin jiki kula da tsarin, za a iya sarrafa da kayan aiki a lokacin da zafin jiki tsarin. na sarrafa jimlar lokacin sake zagayowar aiki, gaba & juyawa baya na tsawon lokaci. Za'a iya daidaita saurin drum bisa ga buƙatar tsari.The kallo taga an yi shi da cikakken m toughened gilashin domin aiki yanayi na fata a cikin drum iya zama bayyananne a wani kallo.Duk wani ganga za a iya dakatar da so a lokacin da aiki na ganguna ta hanyar kama tsarin.Ruwa a cikin tsarin aiki na iya zama drum. kayan aiki sun dace musamman don kwatancen gwajin fata daban-daban a cikin ƙaramin tsari da nau'ikan yin fata.
Wani muhimmin yanki na kayan aiki da ake amfani da shi sosai a masana'antar fatu, ganguna na katako tare da ginanniyar tashe-tashen hankula ko allunan fata. Ana iya sarrafa fata a lokaci guda a cikin batches a cikin ganga. Lokacin da kayan aikin ke motsa shi don juyawa, fata a cikin ganga yana jujjuya ci gaba da lankwasa, mikewa, bugun jini, motsawa da sauran ayyukan injina, wanda ke hanzarta aiwatar da aikin sinadarai kuma yana canza halayen fata. Kewayon aikace-aikacen drum yana rufe mafi yawan hanyoyin sarrafa rigar na tanning, da bushewar laushi da bushewa, da sauransu.
