The TKPH stands for Tonne Kilometres per Hour and is an essential expression of the working capacity of a iyre. It represents the load capacity of a tyre in relation to heat generation. A Tyre's TKPH depends on its design and varies according to size, type and compound.
TKPH values are given along with other Magna characteristics. It is a function of load of each tire and the number of kilometres covered per hour by each type of iyre, and are given at an ambient temperature of 38C (100F).
Tyre selection is one of the most important factors for tire life. Choosing the correct tire specification with the most appropriate TKPH rating for site operations can significantly improve tire life and reduce vehicle operational costs.
The most suitable tire specifications for the job should be selected by determining TKPH under actual working conditions. This can be obtained by observing the following conditions:
1. The average operating TMPH, calculated several samples, should not exceed the tire TMPH rating. If vehicles have on-board operation monitoring systems, we recommends utilizing such data for improved statistical estimation.
2. Awss (average work shift speed) must be used.
3. The TMPH rating data are applicable in the following situations.
4. Revising the TMPH subject to change in maximum ambient temperature.