Aerzener - Model Series DS - Oil-Free Double-Stage Screw Compressor

The advantages of AERZEN Screw Compressor Series DS at a glance:

• Increased energy efficiency ensures additional savings of up to 12%
• Large volume flow control range thanks to reliable VFD technology
• Compact design leads to a very small footprint
• Maximum reliability and durability
• Safe use in extreme ambient conditions
• Plug & Play also in connection with outdoor installation and efficient IE5 motors
• Minimum sound pressure levels
• Reduced service costs thanks to extended maintenance intervals
• On-site service on compressor stages and on the package

As diverse as your applications

Compressed air is omnipresent in industry and has become indispensable in many applications - be it in chemical/ petrochemical process technology, electronics and semiconductor production and many other areas.

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US Units: Yes

• Type of technology: Screw Compressors
• Design: Positive pressure
• Differential pressure (Δp) : 79.77 to 152.29 psi
• Volume flow: 105.948 to 1.718.712 CFM
• Medium: Air, Neutral Gases
• Compression: Oil-free

• Volume flow: 105.948 to 1.718.712 CFM
• Differential pressure (Δp): 79.77 to 152.29 psi
• Medium: Air, Neutral Gases
• Compression: Oil-free

Exceptionally high energy efficiency

• Energy savings of up to 12 % compared to other compressor models
• Innovative bare-shaft compressors with new, highly efficient 4+6 rotor profiles in the low and high-pressure ranges
• Large turndown due to the use of VFD technology
• Optimised cooling by using cooling liquid (water or oil) in the double-walled bare-shaft stages
• Motors of energy efficiency class IE4 or IE5; in connection with an integrated VFD
• Direct drive by means of coupling and gear transmission for optimum drive efficiency
• Stainless steel rotors in both stages to prevent corrosion

High reliability and durability

• 100 % oil-free process air for sensitive applications, certified according to ISO 8573-1 Class 0
• PFAS-free process air generation
• Effective sealing concept for drive shaft and conveying chamber; minimisation of natural seal wear
• Extended fields of application: options for using the package in hot, dusty (desert installation) or extremely cold (polar regions) climates.
• Oil pressure lubrication for exceptional durability of the anti-friction bearings. Bearing life of up to 40,000 hours
• Permanent oil level check by means of an electrical oil pressure switch
• Reliable even in extreme climatic conditions thanks to the use of an oil cooler already included in the standard scope of supply
• Optional acoustic hood for outdoor installation. Enables the machine with integrated VFD to be used outdoors even under direct weather conditions
• Highly effective water separators ensure that condensate is drained as required

Reduced maintenance effort

• Operation and maintenance exclusively from the operating and rear side of the package
• Small footprint and side-by-side installation possible
• On-site service on the compressor stages and the package
• Effortless transport of the entire package using a pallet truck, fork lift truck or crane
• No maintenance required for drivetrain components
• Delivery of the package with a filled oil system enables quick commissioning

Smart oil system

• Mechanically driven oil pump on the drive shaft
• Highly efficient oil pump with reduced energy consumption
• Oil-lubricated anti-friction bearings with pressure lubrication achieve a service life of up to 40,000 hours

Permanently, intelligently reduced noise levels

• Minimum sound pressure levels thanks to intelligent noise reduction of the package
• Innovative pulsation reduction thanks to the use of Venturi nozzles downstream of both compressor stages