You mean bowlers who bowl at least 145+
The ones who broke down and vanished early are actually Part-timers in some ways! Like Shane Bond, Shaun Tait, etc. You won't get to see Part-time Fast Bowlers in a match, you will probably see Part-timers in their career!
Even Medium-pacers like Irfan Pathan, Nehra, etc belong to this category once they lost their skills (swing).
If Pandya from India continue to bowl fast and become effective (than the main bowlers) as he did in CT, we will no more treat him as part-timer (until he breaks down or loses his form). That's the value of fast-bowling alrounders!