Axial Bolt Tensioning using High-Pressure Hydraulic
Cost-reducing - Powerful - Reusable
Hydraulic Nuts do not require a thread projection as Bolt Tensioners do and, therefore, can be used in older constructions to replace conventional torque wrenched bolt connections. For large bolt connections in particular, this eases work and increases the safety of the tension force. Compared with Bolt Tensioners, Hydraulic Nuts enable quicker changing times for connections
that need tightening and loosening on a regular basis. This speeds up checking load forces.
The distinguishing feature of the Hydraulic Nuts of product group 9 is that an axial force is produced by hydraulic pressure and is maintained for a reasonably long period of time.