Commissioning & Warranty

We can take part in all aspects of a delivery project of trains or automation. From start to completion.


Prior to start up, we carry out tests and homologation, we report the analyzes and results back to the engineering department, production, clients and authorities.


During the hand-over phase, we conduct field support and commissioning activities to achieve the delivery acceptance. We deploy dynamic and static tests of all system functions reporting against the system or vehicle buyer, followed by warranty activities.

Reliability and availability

By achieved extensive system knowledge, our work continue with troubleshooting and root-cause problem solving. We perform software analysis and by accurate documentation feed to the system manufacturer's engineering department, we contribute to improvements.


After project delivery we offer technical support to the maintenance organization, transfer system knowledge and carry out corrective maintenance. We can also take responsibility for implementation of modifications and retrofits with our own mechanical staff or through our network.

The company also offers extensive training activities within statutory and industry requirements regulated training.

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Twindej AB, Hamngränd 6, 721 30 Västerås, Vxl Tel. +46 21 444 00 44, E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.