Double basin assembly for performing sandblasting process to treat surface of small metal or plastic parts in e.g. jewelry industry, has basin including hollow hemispherical inner surface and hole to receive air/sand mixture

摘要

The assembly has a basin (10) with a hollow hemispherical inner surface, a recess and two pins. Another basin (20) includes a hollow hemispherical inner surface and bores for discharging air/sand mixture, where a hole is formed to receive the air/sand mixture. The latter basin includes two notches corresponding to the pins of the former basin, where the pins are engaged with the notches to form a body (30). A seal (36) is fitted into the hole that receives the air/sand mixture. The former basin includes lugs for gripping during unscrewing of the former basin from the latter basin.