In plastic modification processes--such as filler masterbatch production, glass fiber reinforcement, and engineering polymer blending--the twin screw extruder barrel is a critical component. It not only supports material feeding, plasticization, and transport, but also directly influences processing stability and product consistency.
Plastic compounding often involves abrasive fillers (like talc or calcium carbonate), corrosive additives, or high-temperature polymers. These materials can severely degrade the inner surface of barrels over time, especially when using conventional nitrided steel or basic alloys.
Zhitian offers high-performance barrels specifically engineered for demanding plastic compounding lines. The company uses premium wear- and corrosion-resistant materials such as SAM26, SAM39, and CPM10V--PM-HIP alloys known for their superior durability under abrasive and reactive environments.
For even more extreme cases, Zhitian introduces laser cladding technology, applying a 1-2mm nickel-based tungsten carbide layer directly onto the barrel's inner surface. This metallurgical bond not only extends barrel lifespan but also enhances chemical resistance and thermal stability. The laser cladding solution is ideal for machines ranging from 65mm to 320mm and above.
Zhitian's barrel designs are precision-machined to match twin screw extruders from major brands like Coperion, Leistritz, JSW, Theysohn, and others. Customizable barrel lengths, cooling channels, and material options help customers adapt their lines to different plastic formulations and throughput demands.
As compounders seek longer service life, improved efficiency, and stable product quality, upgrading to high-performance barrels is essential. Zhitian continues to support plastic compounding plants worldwide with advanced material technologies and engineering expertise.
