Our partners

ESTRA GmbH has existed for many years very successfully in the market.

For this purpose, good partners are essential.

In order to offer our customers the best service and best quality we have been working together with our partners for many years. Amongst some specialized trading companies these include also two manufacturers, which are known worldwide.



Märkisches Werk Halver

 Since 1859


Märkisches Werk (MWH) is a leading provider of cylinder head systems inside large combustion engines for vessels, locomotives and power generation plants worldwide. Over 90% of the world's large engine builder’s partner with us. They have come to expect innovative cylinder head system solutions that stem from nearly 150 years of experience and an enduring commitment to research and development. What can our ingenuity do for your engine?


ESTRA GmbH has a wide range of original MWH products available ex stock



Ludwig Hunger Werkzeug- und Maschinenfabrik GmbH

Hunger offers a comprehensive range of tools and machines for servicing small as well as large engines with high precision to comply with the high standards set by the engine manufacturers. In addition, Hunger manufactures since 1922 adjustable hand reamers renowned for the excellent cutting properties due to the unique Hunger relief grinding technique.


Hunger - a company with experience - specializing in the manufacture of expanding reamers and engine service equipment for many years - and with the most comprehensive range of expanding reamers and tools and machines for servicing valves, valve seats, cylinder heads and engine blocks.


Years ago, Hunger pioneered precision valve and valve seat refacing systems which have been further developed and refined until we have the present high performance equipment.


The qualities of Hunger equipment are derived from working in very close cooperation with leading engine manufacturers, and the research and experience gained by Hunger in 90 years of precision equipment manufacture.


Hunger equipment has been tested an approved by leading engine manufacturers, and is being used for high performance work throughout the world.


You can rely on Hunger.


ESTRA GmbH has a wide range of original - Hunger - components in its product program.