SCHATZ®-TEST

The computer controlled test stand contains electro-magnetic joint simulators for continuous testing of nutrunners (air + dc-electric),battery tools, pulse tools and torque wrenches on site at the assembly line. Nutrunners and pulse tools change their behavior according to the joint hardness. Therefore the test stand simulates the joint hardness of the assembly operation at which the nutrunner or pulse tool will be used.

Product information for download (Acrobat PDF)
SCHATZ(R)-cerTEST

The test stand is equipped with the necessary technical measuring capabilities and drive methods for the conduct of tests to ISO 6789 or others. The user can also program his own test procedures as desired and conduct tests and calibrations automatically.

The ISO 6789 test procedure distinguishes between torque wrenches with pre-set release and those with torque indicator and calculates a tolerance of 4 % or 6 % according to class, type and range. Calibration must be undertaken after every 5000 measurements and the measurement uncertainty of the calibration unit may only be max. 1 % of the reading. The ambient temperature is specified at 18°C to 28°C and the test comprises five measurements on 80% of the target data which must be obtained within 1 to 4 seconds. Calibration is carried on approx. 20 %, approx. 60 % and 100 % of the measurement range with increasing force and the adjustable wrench may only be adjusted upward from the lower setting.