Technical assistance


Sigmaphi provides its customers with turnkey solutions (innovation, development, production, testing, installation, commissioning), and offers them its experience and comprehensive after-sales service.

Our services include planning, commissioning and installation, as well as repair and maintenance packages and spare parts. We provide our customers with in-depth knowledge of our product range and applications, with the quality of service and support required to maintain high reliability and long-term use of their equipment.

Thanks to our integrated cooperation with the design and production departments, we are constantly developing our know-how and the way we solve different tasks.

The team has over 40 years of experience in Sigmaphi testing and customer service.

For troubleshooting or technical questions please use our support system.




Any problem? we answer within 24 hours :

Let us help you

You will get an RMA number,

and our experts team will answer within 24 hours.


We want our customers to use their valuable resources for their accelerators: science, industrial production or clinical patients.

Our goal is to maximize the life and availability of your equipment. We provide preventive and curative actions to optimize the use of your installation.

The Sigmaphi range of contracts meets your needs and budget. We can provide you with a complete maintenance solution or a simple solution to meet your specific needs.

We offer a wide range of services:

  • Rapid response services (hotline assistance)
  • Preventive and corrective maintenance
  • Security control and inspection
  • Spare parts in stock in house or on site
  • A dedicated training program for your team
  • Preventive obsolescence analysis and monitoring
  • Specially trained technician at your installation, ready for curative action

Repair and calibration

Our engineers provide customers with technical diagnostic, repair and calibration services, both on-site and in-house.

Our objective is to provide our customers with the quality service and support required to maintain high reliability and long-term use of their equipment. Sigmaphi offers the repair and calibration of power supplies and RF amplifiers.



In order to ensure the traceability of all products sent for repair and/or calibration, Sigmaphi uses a web-based RMA system. All products must be registered in the RMA system before being returned to Sigmaphi. Then, our RMA system automatically provides you with information on each step of the repair and/or calibration.

Please fill in the form at the top of the page to obtain this RMA number.

Spare parts

Sigmaphi can provide you with the necessary spare parts to optimize the life of your equipment.

We have a very wide range of spare parts.

In our policy, we manage 10 years of spare parts.

As part of a maintenance contract, we can provide you with additional services :

  • dedicated stocks on site or internally
  • storage
  • Spare parts and obsolescence management

Please fill the order form below to order replacement parts. An offer will be sent back to you.

Spare parts


For any request, please contact Olivier Geller

Phone :+33 (0)3 67 22 02 90

Mobile : +33 (0)6 08 37 62 64

Fax : +33 (0)3 67 22 03 19