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Hydraulische Spannsysteme und Produkte

  • Externe Hydraulische Schraubenspannvorrichtung HET

You would like to keep using your standard bolting equipment? But you are perfectly aware of the problems the conventional torquening causes: bending stress, torsional stress and thread friction with the consequential damage?

There is a solution: Hydraulic External Tensioning System from Riverhawk which gives you all advantages of hydraulic tensioning and keeps your equipment standard.

  • Hydraulikmutter HTN

This special nut from Riverhawk, which replaces conventional nuts, is suitable for critical applications in high temperature and harsh environments. You can be sure that this lifetime product will provide uniform loading, ensure the simultaneous tensioning, save time and prevent risks.

  • Hydraulikschraube HTB

This special bolt from Riverhawk replaces conventional bolts and nuts and is 2 in 1 product. Similar to the Hydraulic Tensioned Nut, it is suitable for critical applications and has the same characteristics and similar operating principle.

  • Hydraulische Stangenspannvorrichtungssystem HRT

This special patented system developed by Riverhawk is allowing to work within the minimum possible footprint and has all advantages the hydraulically tensioning systems can offer. This HRT system is easily retrofittable and is suitable for any critical applications you may face.

  • Externes Spannmuttersystem ETN

This revolutionary systems from Riverhawk allows the easy use of the existing hardware like studs which before had to be replaced with the longer ones. Generally the conventional hydraulic tensioning hardware requires an acess to the stud which is long enough. The External Tensioned Nut does not have any of these limitations! No stud replacement and interfaces allowing the standard nut retrofit - but all the advantages of the hydraulic tensioned system are assured!

  • Schraubenspannvorrichtung "Peregrine"

You have to work within very limited space? You want to have a personell safety added even while working with high pressure hydraulics? You have to meet API requirements? You need to close many bolting connections at once? That is an easy task with Riverhawk Peregrine Tensioner:

You have questions or would like to get more information about Hydraulic Tensioning System suitable for your requirements? Just send us an email: or contact us any time.