TKPH TYRE

Apakah Tkph itu ?

TKPH adalah suatu standar / batas kemampuan tire dalam menahan suatu beban dalam jarak dan waktu yang telah direkomendasikan oleh masing-masing tire manufacture.Jadi Tkph sama dengan ton kilometer per hour.


Maksudnya unit tersebut dalam satu ritasi ( muatan tambah kosongan menempuh jarak dari loading ke dumping kembali ke loading dalam sekian waktu)

Atau dalam rumus TKPH =( muatan + kosongan ) / 2 x jarak tempuh / waktu.
contoh :

Example of a site TKPH (TMPH) calculation
The data to calculate the real site TKPH (TMPH) is as follows:
- well kept but abrasive haul roads;
- average payload: 180 tons (198.5 short ton); mine value
- reference cycle: 12 km (7.5 miles);
- unladen weight Front: 64 tons (70.6 short ton)
- duration of cycle: 45 minutes ; H = 45 / 60 = 0,75;
- unladen weight Rear: 57 tons (62.8 short ton)
- ambient temperature: 36° C (96.8° F);
- distribution of total laden weight: Front = 33.3 % Rear = 66.7 %

a) Calculation of Qm (average tyre load)
(TKPH)
- Gross vehicle weight (GVW) 180 + 64 + 57 = 301 tons
- Unladen weight per tyre – Front; Qv: 64/2 = 32 tons
- Laden weight per tyre – Front; Qc: 301 x 33.3 / 2×100 ~ 50 tons
- Average tyre load, Qm Front: 32 + 50 / 2 = 41 tons
- Unladen weight per tyre – Rear; Qv: 57/4 = 14 tons
- Laden weight per tyre Rear; Qc: 301 x 66.7 / 4xi00 ~ 50 tons
- Average tyre load, Qm Rear: 14 + 50 / 2= 32 tons
Thus, the value for Qm to be used will be: 41 tons

b) Calculation of Vm
(distance covered per hour)
Vm = L/H 12/0,75 = 16 km in one hour

c) basic site TKPH (TMPH)
TKPH = Qm x Vm 41 x 16 = 656