A rotary atomizer for receiving molten material and projecting droplets of the molten material there from; the rotary atomizer having a rotating well for receiving molten material. The well comprising a base and a peripheral wall extending from a peripheral rim around the base, the top of the peripheral wall having an inner top edge and a lip region extending away from the inner top edge at an angle of 0-60 degrees below the horizontal. Preferably the upper region of the peripheral side wall extending to the inner top edge is substantially vertical.