A PVC injection molding machine is a specialized industrial press that heats polyvinyl chloride (PVC) pellets and forces the molten plastic into a closed mold under high pressure to shape rigid or flexible components like pipe fittings, valves, and electrical housings.
Key Machine Features
Specialized Screw Design: Features a low compression ratio (typically 1:1 to 1.5:1) to prevent excessive shear heating and material degradation.
Corrosion-Resistant Barrel: Uses bimetallic or heavily treated steel barrels and plating to withstand corrosive hydrochloric gases released during PVC heating.
Precise Temperature Control: Equipped with multi-zone heaters, cooling fans, and accurate sensors to maintain a very narrow thermal processing window.
High Clamping Tonnage: Ranges from 100 to over 1,000 tons of clamp force to keep molds tightly shut against high injection pressures.
