To meet increasing demand for on-site gas generation systems, Atlas Copco has launched its latest advance in nitrogen production technology, the upgraded NGM+, a 10-model range capable of producing high-quality nitrogen 20% more efficiently than that offered by comparable membrane generators.

The new range provides a ‘highly efficient, compact, simple, and low-cost on-site solution’ for NM₂ requirements. Thanks to Atlas Copco’s premium membrane technology, the NGM+ generator require 20% less feed air than traditional membrane systems and, because it requires less energy input per unit of N₂, Atlas Copco says it offers the lowest total cost of ownership in its class.

The NGM+ design also minimises operational costs by eliminating the need for a feed air heater to reach maximum capacity, as is commonly employed to enhance performance of some other generators, but which adds significantly to energy bills.

The next-generation NGM+ 7-70 units replace the existing NGM+ 1-7 range. Available in 10 model sizes, their volume and nitrogen purity outputs are related to the number of high-performance, highly durable, pre-aged membrane modules installed.

Each generator comes as a complete, plug-and-play package complete with gas purity sensor, feed air monitoring, and gas purity regulation valve included as standard. Its intuitive Elektronikon® Touch controller allows for easy gas purity setting and alerts users to any purity anomalies in the N₂ output.

Designed for low-noise operation, the NGM+ can be sited at the point of use on the production floor, and with its premium filtration fully integrated, the generator offers a compact, uncluttered footprint. For operations with a stable flow, the NGM+ even eliminates the need for external tanks.

The new NGM+ can also be combined with a traditional cylinder or bulk gas supply system. In addition to the general industry version, Atlas Copco has developed a dedicated marine NGM+ that is fully compliant to the major global classification societies’ requirements.

Membrane technology is inherently simple to operate, offering a continuous supply of nitrogen with a stable purity. The NGM+ maximises this reliable performance, producing dry, high-quality N² at the lowest air consumption.

Its pre-aged membranes eliminate performance loss after commissioning. A soft start protects membranes and extends unit lifetime and advanced control and monitoring features safeguard the reliability of the generator and the quality of its output.