The Triple-Line Pocket Spring Assembly Machine is engineered for bonding pocket spring coil rows to form a complete spring unit—an essential support structure used in pocket coil spring mattresses and sofas. This machine can be connected to one, two, or up to three pocket spring manufacturing machines, allowing flexible production line configurations to meet various manufacturing needs.
Once the pocket springs are produced, they are ultrasonically sealed and arranged into rows. These rows are then bonded together by the assembly machine using hot melt glue, forming a stable and uniform pocket spring unit—the core of any high-quality mattress or sofa, and the key component responsible for comfort and support.

Intelligent Zoning Capability
This machine supports zoning with up to three different types of pocket springs, meaning each of the three feeding channels can handle springs with distinct properties. The Triple-Line Pocket Spring Assembly Machine features intelligent zoning through a touchscreen control panel. When connected to two or more spring machines producing springs with different characteristics—such as one using harder wire and another softer wire—manufacturers can define custom zones across the mattress unit. By adjusting parameters like wire diameter, coil height, number of turns, and spring shape, this system enables precise control over the softness and firmness of each zone. It allows the production of spring units that deliver targeted comfort and support by combining various spring types within a single structure.
Specifically designed for the production of pocket spring mattresses and sofas, this machine enables automated, high-efficiency bonding of spring rows with advanced control over spring arrangement and comfort zoning.