Ferrous Foundry
Ferrous Foundry
Coatings
Riser Sleeve
A Riser Sleeve is also known as a Feed Head or Riser Feeder. When molten metal cools down, the metal volume must decrease by shrinkage. The Riser holds and supplies molten metal to the area where metal shrinkage occurs. It prevents shrinkage defect.
You can set a much smaller riser when you use a riser sleeve than when you use a sand riser. Much smaller volume of riser lets you design products easier and significantly reduces cost of post trimming and remelting.
There are various standard size in each type, round section(DH), oval section(T), neck down (SUPERISER Easy Cut), blind type(BDM), and wide & long board type. You have to check the size chart to choose right one.
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