Switirhisiwa swa aluminiyamu—ti-ingot, tikhoyile, tiprofayile ni maphepha—swi tisa swiphiqo swa ku paka leswi swirhangiso leswi tolovelekeke swi nga swi kotiki ku swi khoma. Swilo swo tika, matlhelo yo kariha, ku twisisa ehenhla, vuhlayiselo bya le handle, na ku hundzisela elwandle swi lava ku bohiwa hi matimba ya le henhla ya ku tsana, ku leha ka le hansi, matirhelo yo pfumala rust, na ku lwisana na maxelo.

PET strap (polyester strap) yi hundzuke ndlela ya manguva lawa eka steel strap eka ti indasitiri hinkwato kusuka eka ku lulamisiwa ka nsimbi kuya eka cotton ginning. Yinyika matimba yo tsana yofana na nsimbi eka n’we xa tsevu wa ntiko, yi herisa makhombo ya kuvaviseka kusuka eka matlhelo yo kariha na snap-back, naswona yi lwisana na rust na corrosion.

PET strap (polyester strap) yina vutomi lebyi ringanyetiweke byo hlayisa bya 18–36 wa tinhweti ehansi ka swiyimo leswi faneleke. Mahiselo, ku kufumela, ku hlangana na UV, na vutshembeki bya ku paka hinkwaswo swi khumba leswaku PET strap yi hlayisa matirhelo ya yona nkarhi wo tanihi kwihi.

Ku pakiwa ka indasitiri yo tika swilava strapping leyi khomaka ehansi ka tension leyi tshamaka, yi lwisana na abrasion, naswona yi pona eka vuhlayiselo byale handle na ku hundziseriwa elwandle. PET strap (polyester strap) na polyester rope hivumbirhi bya swona switirhisiwa eka ku tiyisisa ndzhwalo, kambe switirha hindlela yohambana swinene. Ntambhu ya polyester yi ololoka ehansi ka ndzhwalo, yi lahlekeriwa hi ku nonon’hweriwa loko ndzhwalo wu ri karhi wu tshamiseka naswona yi rhurhumela hi ku hatlisa eka makumu ya nsimbi yo kariha.

PET strap (polyester strap) yi kumeka hi vukulu kusuka eka 0.4mm kuya eka 1.25mm, laha range yin’wana na yin’wana yifaneleke swilaveko swokarhi swa ndzhwalo na tinxaka ta switirhisiwa. Ti straps to olova (0.4–0.55mm) ti tirhela ndzhwalo wo vevuka wa ti pallet xikan’we naku pakiwa hiku angarhela, kasi swihlawulekisi swo tiya (0.8–1.25mm) swi khoma ti coils ta nsimbi, ti cotton bales, na switirhisiwa leswi lavaka ngopfu swa ti indasitiri.

Ti dimensions ta core ti le xikarhi ka swihlawulekisi leswi honisiwaka ngopfu loko vaxavi va hlawula PET strap (polyester strap) eka matirhelo ya automatic strap. Xirhendzevutani lexi fikelelaka swilaveko hinkwaswo swa michini—ku anama lokunene, ku enta ni matimba yo tshoveka—xa ha ta vanga swiphiqo swa ku dya loko mpimo wa xona wa le ndzeni wu nga fambisani ni xitirhisiwa xo nyika nhloko ya xirhendzevutani. Core inner diameter, roll width, na roll outside diameter hinkwaswo swifanele ku fambisana na spindle ya muchini na unwinding mechanism. Nkongomiso lowu wu hlamusela swipimelo swa nkoka swa PET strap, ndlela leyi swi khumbaka matirhelo ya nhloko ya strapping ya otomatiki, na ndlela yo tiyisisa ku fambisana loko u nga si xava.

Ku hlawula exikarhi ka PET strap (polyester strap) na steel strapping i xin’wana xa swiboho leswinga na mbuyelo swinene eka ku pakiwa ka ti indasitiri. PET strap yinyika kufika eka 50% wa ku hlayisiwa ka ntsengo hi foot, yi herisa makhombo ya kuvaviseka kusuka eka matlhelo yo kariha na snap-back, naswona yinyika ku khomiwa ka tension yale henhla loko ndzhwalo wu tshamiseka hi nkarhi wa ku hundzisela. Ku bohiwa ka nsimbi swi tisa ku tiya lokukulu eka ndzhwalo lowukulu kambe swi rhwala swibalo leswi fihliweke ku katsa na swilaveko swa le henhla swa vatirhi, makhombo ya ku thyakisa rust, na ku onhaka ka switirhisiwa. Kuya hi data ya indasitiri, PET strap yinyika linear footage leyi phindhiweke ka mune hi thani loko ku pimanyisiwa na nsimbi, leswi cincaka hi xisekelo xiringaniso xa ntsengo.

PET strap (polyester strap) yi kumeka hi standard widths kusuka eka 9mm kuya eka 32mm, na vukulu lebyi tolovelekeke kukatsa na 12mm, 16mm, 19mm, 25mm, na 32mm. Ku hlawuriwa ka ku anama swi khumba hi ku kongoma matimba yo tshoveka, ku hangalasiwa ka ndzhwalo, na ku fambisana ka switirhisiwa. 19mm PET strap hi ntolovelo yi tisa matimba yo tshoveka ya 450–550kg, kasi 25mm strap yinga tlula 900kg—yi tshinelela matirhelo ya steel strapping hi ntiko wale hansi swinene na ntsengo.

PET strap (polyester strap) na PP strap (polypropylene strap) i switirhisiwa swimbirhi leswi tolovelekeke swinene swo hlanganisa plastiki, hambiswiritano swi tirhela swikongomelo swo hambana hi xisekelo. Loko PP strap yinyika ku cinca cinca xikan’we naku hunguta ntsengo eka ku paka ka ntirho wo olova, PET strap yi tisa matimba yofana na nsimbi hiku leha ka le hansi, leswi endlaka leswaku yiva kahle eka ndzhwalo wo tika, vuhlayiselo byale handle, na ku rhumeriwa ka mpfhuka woleha. Nkongomiso lowu wu hlamusela leswaku PET strap i yini, ndlela leyi yi hambanaka ha yona na PP strap eka swivumbeko swa swilo na matirhelo, na ndlela yo hlawula ndlela leyinene eka xitirhisiwa xa wena xo karhi.

Ku tiyisisa khwalithi ya PET strap (polyester strap) loko yinga se amukeriwa swi sivela ku tsandzeka ka ndzhwalo lowu durhaka xikan’we naku kavanyeteka ka matirhelo. Nkongomiso lowu wu katsa magoza ya nkoka yo tiyisisa ku katsa na ku kamberiwa ka matimba yo tshoveka, ku pima ku pakanisa ka tidimenxini, ku kamberiwa ka le henhla, na ku kamberiwa ka matsalwa. Hikuya hi swihlawulekisi swa ASTM D3950, ku tiyisisiwa ka khwalithi swifanele ku tiyisisa matimba ya tensile, elongation, na dimensional tolerances . Ku landzelela endlelo ro tiyisisa leri hlelekeke swi pfuna vatshila va ku xava ku tiyisisa leswaku bandi leri amukeriweke ri fikelela swilaveko leswi boxiweke.