The CT series single-sheet feed paper bag machine was independently developed and produced by Zenbo in 2016. This series of equipment features modular combinability and strong expandability. Based on the functionalities it possesses, the series can be customized with functions such as intelligent full servo control function(E model), split bottom (T model), four-piece top reinforced card (F model), and insert bottom cardboard(S model), meeting the production needs of various luxury bags and high-quality boutique bags. Since its development, the CT series has undergone numerous adjustments and refinements, continually improving its reliability and stability through serving many global first-tier famous brands, proving its endurance over time.

The ZB1200CT-450 machine primarily produces  paper bags with a finished length ranging from 110mm to 450mm and a gusset width ranging from 50mm to 180mm. It corresponds to the size range of bags this model can manufacture, capable of producing most large boutique paper bags available on the market. The top reinforced card size ranges from 90mm to 430mm in length and 25mm to 50mm in width.

The ZB1450CT-550 machine primarily produces huge paper bags with a finished length ranging from 260mm to 550mm and a gusset width ranging from 100mm to 250mm. The top reinforced card size ranges from 240mm to 530mm in length and 25mm to 50mm in width.