Txhais tawm ntawm qhov chaw tsim kho mob plastic yog nyob hauv qhov sib txawv ntau, muaj ntau li ob hli dollar rau ib qhov chaw tsim kho mob le lej rau cov neeg siv khoom lossis ib co ntau dua rau ib qhov chaw tsim kho mob meej thaum kawg. Qhov muag muaj ntau yam kev pab pawg. Lub thawj yog qhov loj thiab qhov tshwm sim, feem ntau sau los ntawm lub screw diameter (xws li 45mm, 60mm, 90mm) thiab nws L/D ratio (qhov ntev-taum-daim ntawv). Ib chaw tsim kho mob loj dua thiab muaj qhov L/D ratio siab dua rau kev pab kho thiab siv tau zoo dua yuav muaj qhov muag siab dua. Qhov chaw tsim kho mob yog ib yam ntxiv uas muaj ntau tshwm sim; ib qhov chaw tsim kho mob siv ib lub screw yog qhov muag tsawg tshaj plaws, thaum qhov chaw tsim kho mob siv ob lub screw roj roj kom muaj zog rau kev pab kho lossis siv polymer siv tau zoo dua yog ntau dua los ntawm qhov kev tsim kho tseem ceeb ntawm lub screw thiab barrel. Qhov specification ntawm cov khoom siv kuj muaj ntau tshwm sim rau qhov muag. Ib chaw tsim kho mob tsim los ntawm AC motor standard thiab heater bands feem ntau yuav muaj qhov muag tsawg dua li ib qhov muaj servo drive uas ruaj khov thiab ceramic heaters tsha yim. Qhov kev siv automation thiab qhov kev ruaj ntseg ntawm qhov system (los ntawm PID controllers feem ntau mus rau SCADA systems uas siv PC tag nrho) yog ib qhov ntau tshaj plaws ntawm qhov muag. Ntawd tseem, qhov muag yog ntau tshaj los ntawm cov khoom siv ntxiv uas tau muab nrog. Ib qhov luv luv rau "bare" extruder yog ib qhov xwb; qhov muag ntawm cov khoom tseem ceeb hauv qab no xws li dies, calibration tables, haul-offs, cutters, thiab winders yuav tsum tau suav los ntawm qhov muag tag nrho. Thaum kawg, qhov reputation thiab qhov support network ntawm tus manufacturer kuj muaj ntau tshwm sim rau qhov muag, uas muaj ib qhov chaw muag muaj qhov service network hauv plaub lub teb thaj chens feem ntau yuav muaj qhov muag siab dua uas feem ntau yog qhov tseem ceeb los ntawm qhov ruaj thiab kev pab.