Hydraulic Torque Wrenches...It's All about the Right Prestress

In several branches of industry high demands are made with regard to (heavy) bolted joints. To achieve this a precision tool is required which provides the certainty of a good joint, but especially the correct bolt prestress. The appropriate tool for this purpose is a hydraulically driven torque wrench. In this article you will find further information about the principles behind hydraulic torque wrenches, the various application possibilities, and particularly the things you should pay special attention to when using these tools.

In spite of all kinds of new joining techniques, nuts and bolts still play an extremely important role in construction and mechanical engineering. Just think of offshore engineering, the chemical industry, or the construction of machines and pipelines. An important advantage of the bolted joint is the possibility to undo the joint for maintenance and repairs and to separate joined machine or construction parts.