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New Pro-Craft Vacuum-Assist Machine

• This is a new Pro-Craft vacuum-assist machine
• Great for investing and casting
• When casting, the machine creates a vacuum at one end of the flask which pulls the air and gases from the mold so that the molten metal flow quickly to every opening
• Larger flasks can be cast with this machine than with the centrifugal machine (although it is not possible to specify exact sizes as the amount of metal to be cast, the shape of the cavity, etc, will all affect the size)
• You will need to add a pump
• With a pump this machine is capable of creating a negative mercury pressure equal to 27" x 29" (69 to 74 cm) at sea level
• The vacuum table measures 10 1/2" x 10 1/2" (27 x 27 cm) and rests on jiggle springs