Aerzen rotary lobe compressors, also known as screw blowers, combine the advantages of blower and compressor technology in one system and stand for maximum energy efficiency, minimum life cycle costs, 100 % pure and reliable process air and a long service life even under extreme conditions - characteristics that make the Delta Hybrid the ultimate in pneumatic conveying processes. With the current expansion of the portfolio, Aerzen is now taking the next step and raising the successful series to the next technology level.

The four new unit sizes provide absolutely oil and absorption material-free air and cover volume flows of approx. 2 to 30 m³/min and drive outputs of 7.5 to 55 kW. Thanks to an innovative compressor stage with new, highly efficient screw profiles, internal flow optimization, paired with motors of energy efficiency class IE4 as standard, as well as optimized routing of the cooling and exhaust air, outstanding energy savings of up to 30 % are achieved compared to a conventional positive displacement blower. The self-tensioning belt drive with an efficiency of over 98 %, which ensures maximum flexibility in terms of volume flow and motor power, also contributes to this.

The patented bearing enables a service life of 70,000 hours and more. An effective sealing concept for the drive shaft and the conveying chamber minimizes natural wear and also guarantees freedom from oil in accordance with ISO 8573-1 class 0. The patented reactive silencer without absorption material successfully prevents contamination of the process air and customer products. The rotors are uncoated so that no abrasion can get into the conveying air. These are decisive factors for sustainable, safe and long-lasting operation in pneumatic conveying systems for sensitive bulk materials. In addition, the new Delta Hybrid is characterized by a reduced final compression temperature (up to 10°C lower) and thus enables gentle transport of sensitive materials such as sugar or cocoa and milk powder. The rotary lobe compactors comply with the current ATEX product directive 2014/34/EU and can be used in highly critical, explosive working environments (e.g. flour dust) without any problems.

Maximum energy efficiency, hygienic design, first-class product quality, reliable explosion protection: With the new Delta Hybrid, Aerzen has defined a new benchmark in blower and compressor technology and offers the industry directional units for the pneumatic conveying of sensitive, powdery and granular media. The result: safe, clean and reliable processes.