One of the central REITZ promises to our customers is a pledge in which we guarantee REITZ quality according to German standards, regardless of whether your fan is manufactured in Höxter, Hyderabad or Suzhou. Well-documented quality management with Group certification pursuant to DIN ISO 9001 confirms that which you can expect from us anywhere in the world: excellent engineering and design, first-class design quality and high performance made by REITZ.


Quality management system DIN 9001 : 2015

Energy management system DIN EN ISO 50001 : 2011

 Environment management system DIN ISO 14001 : 2015

Management system ISO DIN 45001 : 2018

Management system BS OHSAS 18001 : 2007

Welding technology DIN EN ISO 3834-2

Welding of railway vehicles and components DIN EN 15085-2

Quality management for potentially explosive atmospheres pursuant to DIN EN 13980 : 202

Safety Certificate Contraktors (SCC)

EAC TR CU 010,  EAC TR CU 012/2011 (ATEX)

Individual personal Certifications:
Non-destructive testing (DIN EN 473 / ISO 9712)
Penetration testing level 2
Visual inspection level 2
IIW International Institute of Welding – welding engineer certificate
 Health, safety and environmental protection certificat


The same quality standards which apply to production at our headquarters in Höxter also apply to our production facilities in India and China. Based on a high degree of vertical integration and certified quality management, we leave nothing to chance to impress our customers with durable fan technology.

  • Materials tailored to applications
    First-class product quality begins with the careful selection of materials by our specialists for standard and special materials.

  • Certified production
    REITZ customers value quality workmanship documented through certified quality management pursuant to DIN ISO 9001 and other certificates (welding, non-destructive testing, safety, environment, health and many more).

  • Endurance tests
    No REITZ fan leaves production without being thoroughly inspected through a number of measures (balancing of impellers in two planes for running smoothness and durability, finite element calculation to check tension in dynamically stressed components, non-destructive crack testing using a dye penetration test, vibration analysis).

  • Power measurement
    Sizes up to 1,000 kW can be reliably inspected and measured on our own test bench at our headquarters in Höxter.