Q: What are the main benefits of hydraulic bolt tensioners?
A: The hydraulic bolt tensioning tool provides a quick, easy and safe way to tighten large diameter bolts to achieve high and accurate preload. Unlike an impact wrench, a tap wrench or a hydraulic torque wrench, it does not use torque and does not require the force to rotate the nut or bolt, thus avoiding friction.
The hydraulic bolt tensioner is an annular tensioner that is fastened to the bolts and nuts. The tensioner pushes the bolt joint and pulls the end of the bolt. Because the stretcher acts directly on the end of the bolt, it creates a tension on the screw equal to the load. The tension of the tensioner allows the nut to be rotated at zero torque until it is tightened. Then, after the tensioner is relieved, the bolt can obtain the corresponding preload.
Hydraulic bolt tensioning tools have the following benefits:
1, accurate. Bolt load accuracy is extremely high, typically 5% or better. There is no need to consider friction losses and no lubrication. Easy to calculate load transfer and prevent overload.
Fast - these tools can be installed and operated quickly.
2. Synchronous stretching. Multiple bolt tensioners can be hydraulically clamped at the same time.
3. Consistent. Multiple bolts are pre-tensioned at the same time to ensure that the same load is applied to each bolt.
4. Safe. There is no problem with pinch or reaction. The safety of Boltight hydraulic stretching systems exceeds industry standards.
5, multi-purpose. With the adapter kit, a set of fastening tools is available for bolt connections of different sizes.
6, cost-effective. Based on the above factors, the hydraulic bolt tensioner can create practical value for customers.
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