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PLUTO Screwdriver Test Data

Overview

The test data below was provided to us by a KolverUSA customer, who manufactures automotive and personal recreation vehicles.

Methodology

A UFT S-10 joint simulator was set to a "B" hardness with a 6 mm bolt to simulate a typical joint. The bolt was set to torque on the simulator using the Kolver PLUTO 10P. The final torque was recorded dynamically using a 20 Nm Crane inline transducer. All torques are recorded in Nm.

The repeatability data is presented as 3 sigma divided by mean, which allows tool comparison regardless of process specification or gun size.

  Max Setting Med Setting Min Setting
Trial 1 Trial 2 Trial 3 Trial 4 Trial 1 Trial 2 Trial 3 Trial 4 Trial 1 Trial 2 Trial 3 Trial 4
8.73 9.27 9.16 9.07 6.21 6.36 6.48 6.43 4.15 4.53 4.52 4.51
9.23 9.36 9.61 9.46 6.42 6.46 6.42 6.6 4.32 4.46 4.61 4.42
9.41 9.25 9.58 9.16 6.45 6.46 6.25 6.65 4.4 4.61 4.78 4.35
9.27 9.16 9.46 9.11 6.7 6.52 6.46 6.43 4.26 4.35 4.6 4.55
9.18 9.4 9.61 9.56 6.52 6.58 6.52 6.65 4.32 4.18 4.58 4.45
9.55 9.3 9.08 9.06 6.57 6.55 6.65 6.57 4.55 4.15 4.73 4.57
9.02 9.53 9.52 9.13 6.38 6.5 6.8 6.53 4.32 4.53 4.48 4.5
9.36 8.91 9.35 9.13 6.46 6.43 6.56 6.38 4.62 4.56 4.62 4.61
9.58 9.46 9.25 9.45 6.78 6.48 6.65 6.53 4.43 4.52 4.58 4.51
9.53 9.41 9.06 9.56 6.42 6.9 6.77 6.83 4.43 4.7 4.66 4.6
Mean 9.3 9.3 9.4 9.3 6.5 6.5 6.6 6.6 4.4 4.5 4.6 4.5
Sigma 0.26 0.18 0.22 0.21 0.16 0.15 0.17 0.13 0.14 0.18 0.09 0.08
3S/Mean 8.6% 5.7% 7.0% 6.8% 7.5% 6.7% 7.6% 6.1% 9.4% 12.1% 5.8% 5.5%