The Hitachi PSA Nitrogen Gas Generator N2 Pack NEXTII series (0.75-22kW) provides efficient and reliable on-site nitrogen generation using Pressure Swing Adsorption (PSA) technology to extract high-purity nitrogen (99-99.99%, with 99.999% available) from ambient air. All models feature oil-free scroll compressors, ensuring a clean, oil-free environment, eliminating the need for oil changes, disposal, or mist filters. The series offers significant energy savings through Inverter Control (V-type 3.7-5.5kW models) and Multi-Drive Control (7.5-22kW models) with an optimized Energy Save mode, achieving up to 49% energy reduction at 40% load. Its compact, one-package design reduces footprint by approximately 50% compared to previous models, while the oil-free compressor contributes to low noise and vibration. With nitrogen gas capacities ranging from 0.9 to 68 m³/h (50/60Hz) and discharge pressures of 0.50-0.55 MPa, the system is easy to operate with a single switch and includes remote operation and external I/O terminals as standard. It is ideal for various applications such as food packaging, medicine, electronics, metal processing, and laboratories, where stable, high-purity nitrogen is required for oxidation prevention and explosion protection.