Md Plastics offers high performance barrel construction options for corrosion and abrasion wear process environments. Upon application review, our technical sales staff carefully selects the optimum barrel bore compatible with the feed screw, resin, and application process.

Barrel options are available for injection molding, extrusion, blow mold, LSR, 3-D print, and rubber machinery groups. Our size capabilities range in size from 14MM (0.551 IN) to 250MM (9.84 IN) ID bore size with a maximum length of 6604mm (260IN).

A bimetallic cylinder commonly referred to as a barrel consists of two different metals bonded together. The ID liner is a metallic alloy designed to form a hard abrasion and corrosion wear resistant liner. The liner is uniform down the length of the cylinder bore. It is precision honed to a close tolerance fit between the feed screw outer flight land diameter and the barrel ID. The outer backing steel material is constructed from high strength steel alloys. Liners are bound into the ID through centrifugal casting, sintering and interference fit methods. When required Injection barrels are fitted with high-pressure sleeves at the discharge end.