Double facer in china is an important single machine in the corrugated board production line. The main function of a Double facer in china (also known as a heating laminating machine) is to bond single-sided corrugated cardboard and face paper, heat and solidify, and freeze-set into high-quality three-layer, five-layer, or seven-layer corrugated cardboard after drying. The corrugated cardboard is then passed to the slitting and creasing machine and other equipment for cutting and processing of the cardboard.

Classification. As far as the ballast is concerned, there are mainly three types of Double facer in china that can be seen in the domestic and foreign markets: full-roll ballast type, air pressure hood type, and platen type.
The advantages of stepless ballast crushing roller type Double facer in china: it has stepless adjustment of ballast capacity, and is widely used in the production of corrugated cardboard of various specifications and different weights.
In the process of forming after the cardboard enters the Double facer in china, the amount of ballast is very critical. If the ballast amount is too large, it will cause the cardboard to collapse and collapse; if the ballast amount is too small, the bonding strength of the cardboard will be too low, or it will not be bonded at all. For different cardboards, the ballast amount should not be a fixed value.
Through the above introduction and analysis of Double facer in china, hope it helps you.