ZINC ALLOY SPINCASTING SPECIFICATIONS
MAXIMUM PART SIZE*. 4x6x2.500IN.
MINIMUM WALL THICKNESS** .045IN.
GENERAL TOLERANCES. . .+/-.005IN/IN.
MOLD LIFE***. . .25 TO 50 SHOT/CAVITY
LEAD TIME . . . . . 1 WEEK - 3 WEEKS, DEPENDING ON QUANTITY ORDERED
* LARGER PARTS WOULD BE EVALUATED FOR OUR INVESTMENT CASTING PROCESS.
** PARTS WITH WALLS THINNER THAN SPINCASTING ALLOWS WOULD BE
***MULTIPLE CAVITY TOOLS ARE CAPABLE OF PRODUCING HUNDREDS OF PARTS.
written by Arlene Seybert & Arthur Seybert
still machining your prototypes?
Spin-casting is a prototype and short run zinc alloy casting process that enables engineers to review their designs, debug them, and proceed into production with confidence. The spin-casting process uses high temperature, vulcanized silicone rubber molds and centrifugal force to produce highly detailed, low porosity, medium density castings. The finished physical properties achieved using this process are the closest to die-cast properties available.
Spin-casting is an essential prototyping process for troubleshooting your engineering designs prior to investing in hard tooling. It is also cost effective for low volume production requirements. As 4-slide simulation is standard, almost any die-casting design is suitable for spin-casting.
Spin-casting is the least expensive, fastest prototyping process available for zinc alloy parts. It also produces the very best representation of a finished die-cast part. Ideal quantities are fewer than 10 up to several thousand. For an in-depth description of the process, see our spin-casting article.