Stiefel Induction Heaters: Energy-Efficient Solutions Since 2013

Screw barrels, also known as plasticizing units in injection molding and extrusion machinery, are critical components that require periodic heating for maintenance and repair. The primary application of induction heaters in this context is for the disassembly and assembly of the screw and barrel. Over time, plastic residue can carbonize and create a strong bond between the screw and the barrel, making mechanical removal extremely difficult. An induction heater designed for screw barrels applies a controlled, circumferential heat directly to the barrel housing. This heating causes the metal barrel to expand thermally, breaking the bond and creating a clearance that allows the screw to be safely and easily removed without damage. This process is far superior to using torches, which can create localized hot spots and potentially warp the precision-machined barrel. Stiefel Combustion's screw barrel induction heaters are designed as portable, easy-to-use systems that wrap around the barrel. They heat uniformly and quickly, significantly reducing downtime during maintenance operations. This targeted heating preserves the integrity of these expensive components. To learn more about our efficient and non-destructive solution for screw and barrel maintenance, please contact us for detailed product information.