The bimetallic barrel is that it is inside of barrel main material of the normal carbon steel, alloy steel, heat-resist steel (included SUS) and it’s inner part of barrel insert to alloy and after heat treat of high temperature, from centrifugal casting method, and inside of barrel alloy (HB-ALLOY) layer, to spread concentrate, it is same from side picture

Backing material can free select to carbon steel, low alloy steel, stainless steel etc. matched condition resisting pressure, temperature, outside condition.

HYUNDAI BOTECO have taken advantage of the PM-HIP technology way to make this oval liner.

It technique is manufacturing the parallel Twin-barrel extruder by high- difficulty technology in HYUNDAI BOTECO.

The name of the oval liner made from one kind of high-chromium iron alloy, these years is very famous in Korea due to its high wear resistant feature and its longer service life.

HIP way, that is one kind of high-temperature isostatic pressing molding method, the high wear-resistant powder materi- al with low expansion(specially at high temperature) is filled in the mold cavity first, and then into a hot isostatic process- ing furnace, under a relatively high temperature and high pressure, the molecular of materials is moving speed-up under squeezing pressure, we could get a new oval liner with high-density and high-wear resistant feature.

HYUNDAI BOTECO’s Barrel Screw brings you a new range of highly advanced screw element
that come with nano-structured ceramic coatings that are used on the surface of screw elements to get high wear resistance and corrosion resistance. We offer these barrels and screw elements that
are coated with this advanced material to ensure their durability and safety.