When the oxygen production capacity is large, the diameter and height of the adsorption tower will also increase, resulting in inconvenient transportation and high requirements for the site. Therefore, "Zhongsu Hengda" developed a two-unit four-tower oxygen generator on the basis of the two-tower PSA, using four separate towers in parallel, and two groups of adsorption towers to form the main body of the oxygen generator.

Zhongsu Hengda mobile oxygen bar car has significant advantages. In terms of design, the single container is innovatively divided into two parts, and the oxygen producing area and the oxygen absorbing area are rationally arranged to achieve the perfect integration of functions. At the equipment level, the oxygen production equipment using cutting-edge technology can produce high-purity oxygen efficiently and stably to meet the needs of various oxygen applications. Its biggest highlight is the convenient transportation, which can easily reach all kinds of places. In addition, the extensibility is strong, and the generator can be installed on demand, even in remote or special environments without external power supply, it can ensure normal operation and meet customers' oxygen needs anytime and anywhere.