Founded in 1995, Zidong Machinery Manufacture Co., Ltd. is a professional China casting machine manufacturer and designer in researching, developing and design all kinds of machines, equipment, lathe, machining, automatic and tools. ISO9001:2000 certified, we follow strict quality management criteria to provide high quality and cost efficient products. And We have gotten CE, GS and EMC approvals. We devote to carving CAD/CAM technology and CNC numerical control technology research OEM casting machines and development. By adopting assembly technology and choosing fine materials, We have moved towards good stability and gets the position in advertisement, woodworking and metal mold industries.

A time tested machine for casting gold. We've sold these machines for several decades. Newly updated with electronic controls, this is, undoubtedly, the best motorized centrifugal caster available today.
Powerful hp motor
Variable speed drive for optimum rotational speed
Automatic reset cycle timer
Solid state controls
Welded, all heavy gauge steel construction
Closing lid automatically starts machine
Foot brake for rapid stop and easy crucible loading
24" long, machined-steel casting arm, for very rapid casting
Maximum flask size 4"x7"
Capacity of 300 dwt (465 g) 18 K gold
Dimensions- 27" wide, 29" deep, 36" high
Shipping weight- 360 lbs
Made in U.S.A.
Available in 110V, 220V, 50 or 60 cycle (please specify your needs)
One of the more common activities of a pewtersmith is casting pewter. This is the process whereby pewter is heated until it becomes a liquid, and is then poured into a mold. It is then allowed to cool, hardening again into a solid. The cooling pewter takes on a new and desired shape. Jewelry, handles for hollowware, animal miniatures, and various collectibles are examples of pewter items that are cast.

The first and still the best reliable vacuum casting machine since Shor invented and introduced this machine to the industry nearly 50 years ago.
Since it's conception, the UltraVac has had very little change to it's design, with It's rigid structure, and virtually maintenance free components it stands to be the work horse of the industry.
Large casting chamber can accommodate flasks up to 8" in diameter and 12" in height with the use of special adapters.
Secondary vacuum holding tank insures an instantaneous maximum pull around the casting flask.
No need for shop air, unit operates with electric solenoid valves.
Powder coated finish.
Safety rim to catch metal spills.
Choice of vacuum pumps (dry or oil)
Ship weight about 500 lbs.
Pewter is heated in a white metal furnace. (See photo, left.) It is basically a cast iron pot, fired with LP or natural gas, and thermostatically controlled to maintain desired and consistent casting temperatures.
Pewter becomes paste at approximately 350° F. and melts to a bright, silvery, free-flowing liquid at about 380° F. Depending on the size and shape of the item being cast, the pewter is ladled into molds at temperatures between 500° - 800° F. The larger the casting, the cooler the liquid pewter is poured into the mold. (Larger masses of pewter cool more slowly than smaller ones.)

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