Casting Pins (Sprues)
During the solidification phase of the metal, a contraction occurs. To compensate for this and the resulting negative pressure, liquid metal is sucked out of thicker layers. With this knowledge came the idea of the “lost head”. This is located on the casting pin in the center of the muffle and serves as a shrinkage reservoir.
Casting Pins (Sprues) 4 mm (250 pieces) – Ref: YE/754-0250
Casting Pins (Sprues) 6 mm (250 pieces) – Ref: YE/756-0250