If english is not your first language, it is really important to explain and tell everything about your problem, because if you dont, its a lot of guesswork for us.
You can just use the mesh itself, (NOT the 3dsmax emitter) and apply it in cascade.
How to: Mesh based particle for UE4 part 4 - The Particle - YouTube < that shows you how to import a mesh inside ue4’s cascade.