Single Chamber DZQ 400 In that case, "Single Chamber DZQ 400" refers to a specific model of floor type vacuum packing machine that is designed for packaging products in a vacuum-sealed environment. This particular model is manufactured by the company Dajiang Machinery Equipment Co., Ltd. The Single Chamber DZQ 400 is a high-performance vacuum packing machine that is capable of packaging a wide range of products including food, electronics, and industrial components. It has a single chamber design, which means that only one product can be packed at a time. This model is considered to be one of the best floor type vacuum packing machines available, thanks to its advanced features and reliable performance. It is equipped with a powerful vacuum pump, which creates a strong vacuum that removes all the air from the packaging bag, helping to preserve the quality and freshness of the product being packaged.