Permissible Tensile Force Max (PTFmax) vs Dynamic Tensile Force Max (DTFmax)

What is the Permissible Tensile Force Max (PTFmax)?

Permissible Tensile Force Max (PTFmax): This is the maximum tensile force that a cable can safely withstand without causing damage. It is a static limit provided by the manufacturer and depends on the cable's materials, design, and construction.




Sample:







What is the Dynamic Tensile Force Max (DTFmax)?

This is the total tensile force acting on the cable during motion (e.g., pulling or lifting). It includes both static forces (due to weight and friction) and dynamic forces (due to acceleration or vibrations).



Sample :





Key Comparison

Permissible Tensile Force Max (PTFmax):

It defines the cable's capacity. In this example, it's 10,000 N.

Dynamic Tensile Force Max (DTFmax):

It represents the force experienced during use. In this case, it's 1,475.3 N.
If DTFmax > PTFmax, the cable may fail, so designs and operations must ensure this condition does not occur.