According to the pressure formula F = A*P, we designed a clamping force testing machine, to measure the pressure data, and calculate the clamping force of the manual clamp. In the horizontal test and vertical test, different results are obtained.
The calculation data F needs to consider the safety factor Fs = F*0.8,and the locking torque of the manual clamp will get different results due to human factors so the following data are only used as reference values.

Friction force formula F =uN,different brands of line guide rail materials have different friction coefficients (u), and the clamping force data will change accordingly.

The data will change as the parameters change.

The catalog data is the result of proficiency testing with  the factor of safety.