We are an active global technology leader in the field of special screw conveyors. We can draw on over 50 years of experience in developing custom orientated solutions for continuous processes involving the handling of potentially explosive, aggressive, abrasive or sensitive bulk products, as well as manufacturing process components that guarantee gentle product handling and long service life.

Your trust is our duty: Flexible production processes, an extreme high level of vertical integration, qualified employees and advanced technical know-how enable us to meet even the highest demands. An effective quality and appointment management ensures reliable and punctual execution.

Our engineers and technicians from the fields of plant planning, engineering, project management, construction, production and service ensure the highest quality standards. We are certified from TÜV Rheinland to ISO 9001:2015 und AD 2000‐ set of rules / DIN EN ISO 3834.

The most recent certification according to the current standard ISO 9001: 2015 was carried out by TÜV Rheinland in June 2020. The certificate confirms the suitability, adequacy and effectiveness of our Köllemann quality management system. It results in our ability to consistently deliver products and services that meet the requirements of our customers and government agencies.

We are including customer feedback, process performance, improvement requests, corrective actions and the results of audits. Over and above we are taking the careful use of resources and the appropriate handling of opportunities and risks into account. Köllemann GmbH has the performance of its quality management system regularly audited by independent certification bodies.

The certification in accordance with AD 2000 regulations / DIN EN ISO 3834 certifies Köllemann GmbH’s suitability as a manufacturer and welding company on the basis of AD 2000-leaflet HP 0 /HP 100 R, DIN EN ISO 3834-3 and DGRL 2014/68/EU Annex I, para. 3.1.

This ensures that Köllemann GmbH meets following requirements:

• Facilities which permit appropriate and state-of-the-art manufacturing and testing

• Our quality management which ensures the processing and testing of materials in accordance

• Competent supervisory and testing personnel