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Bridge Construction: High Speed Bolting with alkitronic

In modern bridge and road construction, expansion joints are used to bridge abut-ment gaps. The TRANSGRIP® finger ex-pansion joints bridge the gap with cantilever fingerplates. These massive and fatigue-proof finger elements are bolted to a solid foundation.

In former times, bolting Connections were often done with the help of manual torque wrenches. The work strained the backs and knees of the specialists.


Nowadays, our alkitronic ECip 100N handles this task faster and more comfortably. The output extension of this specialized electric torque wrench makes it the appropriate tool for tightening low-lying bolted connections. Working in crouched positions or on one’s knees becomes unnecessary.

Traffic and temperature fluctuations put high stress on these particular components. Additionally, bridge construction must meet strict security standards. We developed our torque wrenches with these requirements in mind. For instance, our tools allow predefining a specific shut-off torque level. Connected to any international electricity grid or to a portable generator, the wrenches achieve these forces precisely at any time.


You can also find out more about TRANSGRIP®, road and bridge construction at the Swiss company Hebag AG at