The molecular sieve for small, medium and large oxygen pressure swing adsorption unit, the implementation of the separation of oxygen and nitrogen, making the industrial, medical oxygen-rich. Technical parameter: Item Unit VP800 PSO2-VSP Application Process PSA、VSPA PSA Size Nm3/h 5-1500 Above 600 Specification mm ￠1.6-2.5 0.6-0.9 Packing Density KG/L ≥0.67 ≥0.66 Crush Strength N/tablet ≥25 ≥16 Attrition Rate %/wt ≤0.3 ≤0.2 Packing Water Absorption %/wt ≤1.5 ≤1.5 Concention of O2 % 93+3 93-95 Adsorption Pressure 0.28~0.4Mpa 0.3~0.5Mpa Pressure of renewable Atomospheric pressure (3-5kg) Atomospheric pressure Cycle Time S 30 45 Rate of Oxyen production (100% O2) NL/kg h ≥20 ≥18