Boiler-Free Corrugating Line

Xuegong's room/low-temperature boiler-free corrugated board production line technology represents a major breakthrough in the packaging industry. This innovative system eliminates the need for traditional steam boilers, significantly reducing energy consumption and operational costs.

The technology is built on three core innovations: a matched instant-bond, instant-dry starch adhesive; room/low-temperature boiler-free corrugated board (carton) production line technology; and room/low-temperature boiler-free flute-to-flute corrugated board (carton) production line technology.

Building on its boiler-free line technology, Xuegong Group has introduced a major new corrugated board production technology — boiler-free flute-to-flute, peak-to-peak corrugated board technology — for which it holds a patent. This flute-to-flute production line can manufacture both five-ply board with a core layer and four-ply board without a core layer.

Four-ply board without a core layer: constructed as facing paper + corrugating medium + corrugating medium + liner, with no core layer in between. Its physical structure forms a diamond-to-triangle pattern, which is more structurally sound. This design significantly improves both flat crush and edge crush strength while resolving the long-standing warping problem in corrugated board.