Co-injection single screw single barrel complete set of equipment

On January 6, Nordson XALOY released the company's patented single-screw, single-cylinder equipment package, which provides cost savings and versatility for two-component molding while requiring less investment than using individual injection molding. A complex co-injection molding system of cells.

Nordson XALOY's system, called Twinshot, replaces standard screws and barrels with homegrown components, allowing twin components to be produced in a single-screw process with single-screw, single-screw and single-reduction parts. The system can be used within a day or two as an option for new injection molding machines or as a retrofit kit for older machines.

“Resins typically account for more than half of a part’s production cost. Two-component molding allows the use of two different resins to achieve the best balance between material functionality and cost,” said Anton Hagen, global product manager for screw and multi-material molding. said. "Nordson XALOY's Twinshot system has low investment costs and is easy to retrofit, so more plastics processors can enjoy the economics of co-injection molding. In addition, the system performs better than co-injection using two injection units. The machine Simpler, takes up less space and consumes less energy.”

Advantages of Twinshot two-component molding include: high-cost specialty materials for the surface and common materials for the core; use of recycled or various sized materials in the core; combination of structured core and decorative surface; added value to new products Various approaches such as combining a "feel-sensitive" TPE skin with a rigid core; the benefits of a foam core (reduced weight and molding pressure without warping and denting) and a highly polished surface. As a simple example of the cost savings of the Twinshot system, Mr. Hagen cites car mirror housings, which require $5 in material costs and $1 in energy costs. “With co-injection, you can easily save 15% in material costs, reduce resin costs by $0.75 per component, and reduce total cost per component by 12.5%.”