... to SUMITOMO ELECTRIC Schrumpf-Produkte GmbH. With our wide range of products we offer you an ideal solution for your individual purpose.

Whether SUMITUBE™ or IRRAX™ - our branded products conform to highest quality.

If you need any further information please contact us. We're looking forward to hear from you.

About SESP

SUMITOMO ELECTRIC Schrumpf-Produkte GmbH (SESP) belongs to SUMITOMO ELECTRIC FINE POLYMER INC (SFP) which is a wholly-owned subsidiary of SUMITOMO ELECTRIC INDUSTRIES LTD. (SEI) located in Japan. SEI is a global acting company with more than 280,000 employees in over 40 countries.

You will also find history, philosophy and other important current topics in the Sumitomo group section.

Our company SUMITOMO ELECTRIC Shrink Products GmbH (SESP) was founded in 1989 with the aim of extend and strengthen the market presence of the Japanese SUMITOMO Group (SEG) in the field of heat-shrinkable plastic products (including Sumitube™, Irrax™, Sumiseal™) in Europe.
At our headquarters in Norderstedt and in a pure production branch in Wedel near Hamburg we produce high quality heat shrinkable plastic tubing for the automotive and aerospace industries.

In our segment we are one of the leading manufacturers in Europe.

All manufacturing parts from extrusion and irradiation to expansion and all required refinements can be executed from here.Therefore we are in the position to react flexible on the individual requirements of our customers.

You can find a product overview and additional details in the Products section.
We look forward to advising you in search of the product complying with your requirements.

Quality philosophy

Our companies success is based on the highest priority to satisfy the expectations of our customers. Our actions are therefore characterized by the aim of meeting product-specific quality requirements.

Since 1999 our company has been certified according to the requirements of DIN EN ISO 9001.

Due to the changing requirements, we want to seize the opportunity to sustainably and continuously increase the effectiveness of our quality management system. With this we intend not only to fulfill, but to improve the customers satisfaction and to bring the requirements and needs of our business partners into line with our high product demands.

You can find this and other certificates in our Compliance.

We are happy to pass on our knowledge to young people, because you will come after us!

As a qualified training company, we have been successfully training with great commitment and passion for 3 decades. We work in partnership with the vocational school center in Norderstedt and the Chamber of Industry and Commerce and already gained great junior staff through our training.

We would be happy to train you as an industrial clerk. We look forward getting to know you and to accompany your training with heart and mind.

You can find additional Information in our Compliance.

Career / Jobs@SESP

We are always looking for responsible employees (m/f/d) who would like to become part of our team. We offer various professional perspectives and challenges in an international environment in a Japanese company. We also attach great importance to the training of young people and have been training successfully for decades. Our current vacancies can be found here and if you are interested, please apply and become part of the Sumitomo family!

At Sumitomo, we promote a workplace environment that is free of discrimination and live the principle of equal treatment and have a Code of Conduct (available at our Compliance) and stand for diversity and inclusion.

All qualified applicants (m/f/d) will be accepted regardless of skin color, religion, age, gender, sexual orientation, National origin, faith, citizenship, disability or marital status are equally taken into account in our selection process.

Global network

SUMITUBE™ production facilities

SUMITOMO ELECTRIC Shrink products have found their markets and applications all over the world. To meet the differing market requirements, SUMITUBE™ is manufactured and marked by

  • Sumitomo ELECTRIC Fine Polymer Inc. (SFP) in Japan
  • Sumitomo ELECTRIC Interconnect Products Inc. (SEIP) in the USA
  • Sumi-Pac Corporation in Taiwan
  • SUMITOMO ELECTRIC Fine Polymer (Suzhou) Ltd. (SFPZ) in China
  • SUMITOMO ELECTRIC Schrumpf-Produkte GmbH (SESP) in Germany


950, Asashironishi 1-chome,
Kumatori-cho, Sennan-gun,
Osaka 590-0458, Japan
Tel.: +81 (724) 52 - 1301
Fax: +81 (724) 53 - 0397


SUMITOMO ELECTRIC Interconnect Products, Inc.
915 Armorlite Drive
San Marcos, California 92069
Tel.: +1 (760) 761 - 0600
Fax: +1 (760) 761 - 0626


No. 15, Industrial 5th Road,
Hsin-chu Enlarge Industrial Park,
Hu Ko Hsian, Hsin-chu Hsien, Taiwan 30352
Tel.: +886 (3) 598 - 4165
Fax: +886 (3) 598 - 4168


SUMITOMO ELECTRIC Fine Polymer (Suzhou) Ltd.
No.232 Jinfeng Road
New District, Suzhou, Jiangsu
215129 China
Tel.: +86 (512) 8919 - 6680
Fax: +86 (512) 8919 - 6686


SUMITOMO ELECTRIC Schrumpf-Produkte GmbH
Oststrasse 89
22844 Norderstedt
Tel.: +49 (40) 526 501 - 0
Fax: +49 (40) 526 501 - 19

Distribution partner

GERMANY - Norderstedt, German Branch Office

SEI Interconnect Products (Europe) Ltd.
Oststrasse 89
22844 Norderstedt
Tel.: +49 (40) 526 501 - 60
Fax: +49 (40) 526 48 - 8

GERMANY - Bremen

Heinrich Thulesius GmbH & Co. KG
Zum Panrepel 15
28307 Bremen
Tel.: +49 (421) 4895 - 0
Fax: +49 (421) 4895 - 225


SEI Identification Solutions Ltd.
Pysons Road Industrial Estate
Broadstairs, Kent CT10 2LQ
United Kingdom
Tel.: +44 (1843) 865 241
Fax: +44 (1843) 867 180