Screw connections can be checked without manipulation! Practical test methods The procedures for testing a screw connection are usually complex. A common method is to continue turning the screw connection with a torque wrench or hydraulic screwdriver. It is only determined whether the screw has been turned further. The conditions for further turning are defined in DIN EN 1090-2. The screw must not be turned more than 15°. The test torque, to initiate further turning, must correspond exactly to 1.05 times the tightening torque. Highly sensitive testing program from M-PTThe development department has been dealing with the difficulties of screw maintenance for years. M-PT has succeeded in developing a unique testing program that makes it possible to test bolted joints without having to turn them any further. During the test, the MED electric torque wrench is placed on the screw. Using a highly complex algorithm in the control electronics, the MED carefully feels its way to the torque to be tested. At a high speed, which is advantageous when screwing, the screw will be overtightened during the test due to inertia. On the other hand, proven hydraulic wrenches are very slow, heavy and unwieldy. The MED exceeds customer requirementsWith the MED, screw maintenance is child's play. Every instructed assembly worker can work with this test program. If several workers are working on different screwdriving cases with one screwdriving tool, the password-protected access levels serve to provide greater security against manipulation of the set parameters. With the documentation system, the MED is the ideal maintenance tool.
