Abstract: A rotary atomiser spindle arrangement includes a rotary atomiser spindle having a shaft and a bell cup releasably mounted on the shaft. The shaft and mounting portion of the bell cup include respective complimentary taper portions which form an interference fit with each other when the bell cup is mounted on the shaft so locating in the bell cup in relation to the shaft, wherein the rotary atomiser spindle arrangement including a bell cup retention arrangement having retention biasing for urging the complimentary taper portions against one another when the bell cup and shaft are at a first relative rotational position with respect to one another whilst the bell cup retention arrangement allows at least demounting at a second relative rotational position. The bell cup retention arrangement includes latching mechanism for latching the bell cup and shaft in the first relative rotational position.

Abstract: A rotary atomiser bell cup comprising a bell portion for spraying media in use and a hub portion via which the bell portion is rotatingly drivable in use, wherein the hub portion is a machined metal portion and the bell portion has been built up on the hub using an additive manufacturing process.

Abstract: A rotary atomiser spindle arrangement includes a rotary atomiser spindle having a shaft which is journaled for rotation in a main body of the rotary atomiser spindle and a bell cup releasably mounted on the shaft. The bell cup has a bell portion for spraying media during rotation in use and a mounting portion via which the bell cup is mounted on the shaft.

Abstract: A rotary atomiser bell cup comprising a bell portion 5 for spraying media in use and a hub portion 6 via which the bell portion 5 is rotatingly drivable in use, wherein the hub portion 6 is a machined metal portion and the bell portion 5 has been built up on the hub using an additive manufacturing process.