Only in the cities do they have a crusher.
Up here they get the bones still intact in a white bag, in fact in one instance that I know of they got sent back as still not well done".
The crematorium here is very basic & fire is started by wood & kept going by alcohol being poured over the body until the body fat takes over. Obviously the older the body the better it burns.
Went to a friends in Patong where he had been kept for 5 months due to dispute over cause of death (another story for another day)) they lit it up, whoosh, no more smoke after about 3 minutes.
They are not ashes anywhere in the world, they are ground up very small bone fragments, only called ashes for the tender
western world