Aerzen Machines

What Aerzen Machines does

Aerzener Maschinenfabrik GmbH, operating commercially as AERZEN, is a privately held German industrial machinery manufacturer founded in 1864 in Aerzen, Lower Saxony, that designs and builds positive displacement blowers, screw compressors, screw blowers, turbo blowers, and vacuum pumps for compressing, conveying, and metering air, neutral gases, process gases, and biogas. The company serves municipal and industrial customers across water and wastewater treatment, pneumatic conveyance, food processing, cement and lime, chemical and process technology, compressed air, maritime, biogas/biomethane, and mining end-uses, and it has been producing turbo machines since 1911 and continuously refining screw compressor technology since 1943.

AERZEN's core engineering proposition rests on proprietary rotary positive-displacement and dynamic machine architectures. The technical differentiators cited include air-foil bearings with double coating engineered for more than 80,000 operating hours and 100% oil-free operation, the Generation 5plus turbo blower platform claimed to deliver up to 10% higher energy efficiency than conventional turbo technology and up to 30% savings versus displacement machines, multilevel VFD technology reducing motor power loss by up to 90%, and a hybrid "Delta Hybrid" packaged unit combining blower and compressor functions. Supporting the hardware is an integrated control-technology stack — AERtronic unit control, AERsmart intelligent master control, AERtronic Master supervisory control, AERZEN WebView process monitoring, and the AERprogress data-based cloud platform operated by the dedicated Aerzen Digital Systems GmbH. Manufacturing and engineering are distributed across Aerzen and Hameln in Germany, Leipzig for process gas, Coatesville PA for North America, and a turbo plant in Cheongju, South Korea that opened in March 2024.

The business model is enterprise field-sales led, executed through more than 50 wholly-owned subsidiaries and local contact persons in over 100 countries with no third-party distribution channel. Revenue is generated from equipment sales of configured industrial machinery, recurring aftermarket services (field service, inspection, maintenance, repairs, service contracts, original spare parts, service kits, and oils), rental solutions with pay-per-use options marketed under AERZEN Rental Solutions and AERZEN International Rental B.V., and analysis-and-consulting offerings such as acoustic evaluations, machine diagnosis, training, and machine registration. Pricing is quote-based and not publicly disclosed given the highly configured nature of the equipment. The company is privately held with no public listing, no disclosed external institutional ownership, and an apparent family-controlled governance structure anchored at the German parent.

Name

Aerzen Machines

Legal name

Aerzener Maschinenfabrik GmbH

Website

https://aerzen.com

Company type

Private

Founded year

1864

Operating status

Operating

Headcount range

11–50 employees

Short description

Aerzener Maschinenfabrik GmbH (AERZEN) is a privately held German manufacturer founded in 1864 that produces positive displacement blowers, screw compressors, turbo blowers, and vacuum pumps for municipal water treatment, food, cement, chemical, mining, maritime, and biogas customers across 100+ countries.

Ownership category

akta.pro rank

Product category

Industrial Blowers and Compressors

NAICS

Pump and Compressor Manufacturing (33391), Air and Gas Compressor Manufacturing (333912), Industrial and Commercial Fan and Blower and Air Purification Equipment Manufacturing (333413), Engine, Turbine, and Power Transmission Equipment Manufacturing (3336)

SIC

Industrial & Commercial Fans & Blowers & Air Purifing Equip (3564), Engines & Turbines (3510), Air-Cond & Warm Air Heatg Equip & Comm & Indl Refrig Equip (3585), Pumps & Pumping Equipment (3561)

akta.pro primary industry

Air & Gas Compressors (General Purpose) (IMAHANAE)

akta.pro secondary industries

Process Gas & High-Pressure Compressors (IMAHANAF), Pump & Compressor Packages (Skids, Booster Sets) (IMAHANAG), Compressors, Refrigeration Components & Condensing Units (IMADANAG), Pneumatic Components (FRLs, Cylinders, Valves) (IMAHAGAC)

Keywords

• Industrial blowers
• Screw compressors
• Turbo blowers
• Positive displacement machines
• Process gas compressors

Headquarters

HQ city

London

HQ country

United Kingdom

HQ region

Europe

Offices14 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Personnel, Operations, Technology or R&D, Infrastructure, Marketing or Sales

Revenue model

1. Equipment Sales: Sale of industrial machinery including positive displacement blowers, screw compressors, screw blowers, and turbo blowers. Products are configured and assembled ready for connection.
2. Aftermarket Services: Field service including commissioning, inspection, maintenance, repairs, and service contracts. Original AERZEN parts including spare parts, service kits, and oils.
3. Rental Solutions: Rental solutions featuring oil-free blowers, compressors, and wastewater treatment aeration grids. Includes pay-per-use options and contingency planning.
4. Analysis and Consulting: Acoustic evaluations, machine diagnosis, training, and machine registration services.

Go-to-market motion2 records

Distribution channels5 records

Marketing channels5 records

Core offering

AERZEN manufactures and sells positive displacement blowers, screw compressors, screw blowers, and turbo blowers for compressing, conveying, and processing air and neutral gases in industrial applications. Core product lines include Positive Displacement Blowers, Oil-free and Oil-injected Screw Compressors, the Delta Hybrid Screw Blower combining blower and compressor benefits, and oil-free Turbo Blowers with proprietary air-foil bearings. Supporting offerings include rental machines, original spare parts, field service, and an integrated control technology ecosystem for monitoring and optimization.

Product overview

AERZEN offers a comprehensive portfolio of high-performance positive displacement and dynamic machines for compressing, conveying, and measuring air and gases since 1864. The core product lines include Positive Displacement Blowers (robust endurance machines for air and neutral gases), Screw Compressors (oil-free and oil-injected variants optimized since 1943), Delta Hybrid Screw Blowers (unique hybrid technology combining blower and compressor benefits), and Turbo Blowers (oil-free units with air-foil bearings featuring high energy efficiency). Supporting the core machines, AERZEN provides an integrated control technology ecosystem including AERtronic (unit control), AERsmart (intelligent master control), AERtronic Master (supervisory control), AERZEN WebView (process monitoring), and AERprogress (data-based cloud solutions via Aerzen Digital Systems GmbH). The company also offers rental machines for temporary needs and comprehensive process gas solutions, all supported by a global network of over 50 subsidiaries across more than 100 countries.

Differentiator

Problem solved

Functional benefit

Brands

• AERZEN Rental Solutions: Rental solutions portfolio featuring oil-free blowers, compressors, and wastewater treatment aeration grids to prevent costly downtime and eliminate capital expenditure.
• AERprogress
• AERZEN CustomerNet
• AERsmart
• AERZEN WebView
• Delta Hybrid
• Vooner
• Suprafilt

Products and services

• Positive Displacement Blowers Robust endurance-runner rotary positive displacement machines for conveying air and neutral gases, including variants for air, process gases, vacuum, and biogas. Configured and assembled ready for connection for industrial facilities worldwide.
• Screw Compressors Oil-free and oil-injected screw compressors continuously optimized since 1943, available for process gas compression, compressed air systems, and biogas compression. Targeted at industrial and process plant operators.
• Delta Hybrid Screw Blower The only packaged unit combining the benefits of blower and compressor technology in one single unit, available in sizes D11S and D16S with direct drive options for lower volume flow applications.
• Turbo Blowers Oil-free turbo blowers with air-foil bearings known for high energy efficiency, including the Generation 5 and Generation 5plus series with models AT75, AT100, and AT250-0.9 S G5plus delivering volume flows up to 155 m3/min. Air-foil bearings provide service life of more than 80,000 operating hours.
• SI Series Oil-injected Screw Compressors Oil-injected screw compressors equipped with permanent magnet (PM) motors, capable of pressures up to 13 bar for industrial compressed air applications.
• DS Series Oil-free Screw Compressors 2-stage oil-free screw compressors capable of pressures up to 10.5 bar for industrial compressed air applications requiring oil-free air.
• AERsmart Intelligent Master Control Standalone intelligent master control system for coordinating and optimizing multiple blower units in combination, delivering automated efficiency gains through intelligent load management across multi-blower installations.
• AERprogress Data-based Cloud Solutions Data-based cloud solutions platform operated by Aerzen Digital Systems GmbH for advanced analytics, predictive maintenance, and performance optimization of the installed equipment base.
• Rental Machines Rental solutions featuring oil-free blowers, compressors, and wastewater treatment aeration grids to prevent costly downtime and eliminate capital expenditure on equipment needed for limited periods. Includes pay-per-use options and contingency planning through AERZEN International Rental B.V.
• Process Gas Solutions High-end customized solutions for compressing and processing gases in industrial applications, designed from customer specification to AERZEN-engineered configuration for chemical, hydrogen, biogas, and process technology industries.

Quantifiable outcome

• Up to 30% energy savings compared to positive displacement blowers
• +8 more outcomes

Segments9 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

AI capability3 records

Feature6 records

Scale indicators11 records

Recent moves7 records

Expansion highlights6 records

Direct peers

• Ingersoll Rand: US-listed industrial technology company offering blowers, compressors, and vacuum equipment (including legacy Gardner Denver and Ingersoll Rand brands). Directly competes in oil-free screw compressors, positive displacement blowers, and turbo blowers for the same industrial process and wastewater end markets as AERZEN.
• Tuthill Corporation: US manufacturer of positive displacement blowers, vacuum pumps, and process gas blowers serving wastewater, chemical, and industrial-process markets. Direct competitor in rotary lobe blower technology overlapping AERZEN's positive displacement blower line.
• Kaeser Kompressoren: Privately held German manufacturer of compressors and blower systems, headquartered near AERZEN in Upper Bavaria. Competes head-to-head with AERZEN in screw compressors, rotary blowers, and compressed-air system solutions for European industrial customers, with a similarly extensive direct-sales service network.
• Gardner Denver (now part of Ingersoll Rand): Historically a leading name in rotary positive displacement blowers and compressors serving wastewater aeration, pneumatic conveyance, and industrial process applications. Direct legacy competitor to AERZEN's positive displacement blower range and now operating within Ingersoll Rand.
• Sulzer: Swiss industrial manufacturer with significant overlap in compressors and pumps for chemical, oil & gas, and water-treatment applications. Overlaps with AERZEN's process gas compressors and vacuum pumps serving comparable process-industry customers.
• Atlas Copco: Swedish multinational that is the global market leader in industrial compressors, blowers, and vacuum solutions. Directly competes with AERZEN across oil-free compressors, turbo blowers, and aftermarket services, serving overlapping wastewater, food, and process-industry customers with comparable product architectures.
• Busch Vacuum Solutions: Family-owned German manufacturer of vacuum pumps, blowers, and compressors. Directly competes with AERZEN's vacuum pump product line and shares comparable roots as a privately held German industrial OEM with strong food, chemical, and process-industry customer bases.
• Howden (Chart Industries): Chart Industries' Howden division specializes in rotary and centrifugal blowers, fans, and compressors for wastewater, mining, and process industries. Directly comparable to AERZEN's positive displacement blowers and turbo blowers for aeration and pneumatic conveyance applications.

Broad incumbents

• Siemens Energy (compressors / industrial applications): Global energy and industrial technology major that, through its industrial-applications portfolio, overlaps with AERZEN in compressors and rotating equipment for power, oil & gas, and process industries. Competes at a higher level across broader infrastructure-scale projects rather than AERZEN's mid-market industrial focus.

Emerging players

• Pfeiffer Vacuum Technology: German-listed specialist in high-end vacuum technology for semiconductor, analytical, and industrial applications. Overlaps with AERZEN's vacuum pump offerings at the more demanding end of the industrial vacuum market but focuses on a narrower, more technology-intensive customer base.

Market position

Strengths1 record

Weaknesses4 records

Competitive moat5 records

Key risks5 records

Key highlights7 records

Customer concentration

• Xx.com/aerzenmachines
• YouTubeyoutube.com/@AerzenUSA
• Facebookfacebook.com/AerzenMachines
• LinkedInlinkedin.com/company/aerzen-machines-limited
• Instagraminstagram.com/aerzen_usa

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles10 records

Subsidiaries14 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Aerzen Machines