You need half tubes, coiled half tubes or U‑tubes? No matter which tube system is required — with Theis Tube Technologies from Siegen you rely on highest performance and safety. A great number of certificates and approvals confirm our work and quality and our unlimited vertical range of manufacturing. We are certified by TÜV Süd Management Service GmbH DIN EN ISO 9001:2015, and an accredited manufacturer according to TÜV Nord Systems GmbH & Co.KG AD 2000-Merkblatt HP0 / W0, as well as DIN EN ISO 3834–2 and Quality Assurance System for material manufacturers according to the rule 2014/68/EU for pressure equipment.
OUR PHILOSOPHY
Our team of Theis Tube Technologies in Siegen meet customers and partners in every project with greatest expertise and highest commitment: From a reliable delivery performance via solutions made to customer’s specifications through to technical advice and support, and we always provide more than 100% and more than you expect from us. This is the credo which has helped us to be a successful, medium-sized, owner-managed manufacturing company in the bending industry since 1926. We do everything to meet your requirements — well-considered and strategically sound, which also is a fixed element in our company philosophy. Respect for our staff members’ performance. Their know-how and commitment enable us to ensure the consistently high quality of Theis-tube-systems as well as our well established product portfolio.
THE FIELD OF
QUALITY MANAGEMENT
Being a traditional company, Theis can look back to a comprehensive and continually developing system — also in the field of quality control. Our high quality awareness is mainly based on the following:
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Ensure the product quality with regard to suppliers and customers
by consequently using specific documents: Delivery specifications -> supplier / manufacturing specifications concerning the production, manufacturing instructions, and others -> customer
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Supplier evaluation and assessment
for maintaining an uninterrupted supply chain and for further developing existing supplier relations and for extending business with new suppliers
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Customer-oriented order processing in connection with “complicated” product requirements and highest demands
Especially in the case of increased product requirements and scopes of inspection, the implementation of the respective project requires comprehensive planning, advice and coordination, starting from issuing comprehensive QM-documents via the full realisation of specific internal and external inspections through to the final inspection, where appropriate with the involvement of third parties.
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The progressive development and/or extension of the existing bending process qualification
for extending the range and improving the possibilities for an establishment in relevant product segments
-
Maintenance of an in-house control of inspection, measuring and test equipment
for ensuring a regular and continuous review and for a timely maintenance of the gauge capability of all QA relevant measuring devices, which can be monitored internally with appropriate devices
-
Extending our staff’s wealth of experience and their qualifications by means of comprehensive applied training
aligned with the needs of the departments and adapted to cross-company developments, raising the claim of a targeted further development of our staff’s skills and — furthermore — for maintaining our competitiveness
-
Use of modern and approved technologies for controlling the requested product quality
Standardised dimensional tests are performed by means of ultrasound / surfaces which are not directly visible can be inspected endoscopically and/or videoscopically at any time
-
Networking with any type of testing technology which can be used within the framework of product realisation
In cooperation with external service providers and accredited laboratories, all types of tests, which are beyond our means, can be organised and implemented in a timely manner, comprising for example: Tests for mixed-up components, corrosion tests, residual stress tests, water analyses, destructive and non-destructive tests etc.
In order to implement our high quality standards within the process landscape of the company we have established various features at an early stage in connection with the quality management which are to ensure a smooth operation of a running QM-system. In this context, the following proceedings and methods have a supporting effect on the achievability and feasibility of the quality targets.
-
Ensure the product quality with regard to suppliers and customers
by consequently using specific documents: Delivery specifications -> supplier / manufacturing specifications concerning the production, manufacturing instructions, and others -> customer
-
Supplier evaluation and assessment
for maintaining an uninterrupted supply chain and for further developing existing supplier relations and for extending business with new suppliers
-
Customer-oriented order processing in connection with “complicated” product requirements and highest demands
Especially in the case of increased product requirements and scopes of inspection, the implementation of the respective project requires comprehensive planning, advice and coordination, starting from issuing comprehensive QM-documents via the full realisation of specific internal and external inspections through to the final inspection, where appropriate with the involvement of third parties.
-
The progressive development and/or extension of the existing bending process qualification
for extending the range and improving the possibilities for an establishment in relevant product segments
-
Maintenance of an in-house control of inspection, measuring and test equipment
for ensuring a regular and continuous review and for a timely maintenance of the gauge capability of all QA relevant measuring devices, which can be monitored internally with appropriate devices
-
Extending our staff’s wealth of experience and their qualifications by means of comprehensive applied training
aligned with the needs of the departments and adapted to cross-company developments, raising the claim of a targeted further development of our staff’s skills and — furthermore — for maintaining our competitiveness
-
Use of modern and approved technologies for controlling the requested product quality
Standardised dimensional tests are performed by means of ultrasound / surfaces which are not directly visible can be inspected endoscopically and/or videoscopically at any time
-
Networking with any type of testing technology which can be used within the framework of product realisation
In cooperation with external service providers and accredited laboratories, all types of tests, which are beyond our means, can be organised and implemented in a timely manner, comprising for example: Tests for mixed-up components, corrosion tests, residual stress tests, water analyses, destructive and non-destructive tests etc.