Move many cupels / blocks at once, easing
manipulation while keeping rank order. Two parallel wide grooves under Tray
allow flat fork (TF) prongs
Trays also protect furnace hearth from litharge (PbO)
Always spread Maborite
powder on tray top to absorb PbO spills.
Maborite prevents cupels from sticking to Tray and increases Tray life. Litharge attack is stopped
and emissions of noxious PbO vapours notably reduced.
● Trays P140 - P52 - P53 used to handle
small cupels (# 1 to # 6) ►Capacities
● Tray P235 used to handle bigger cupels (#
7A to # 12) ►Capacities