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Stainless Steel Perforated Flasks - Otto Frei
Stainless Steel Perforated Flasks - Otto Frei
Stainless Steel Perforated Flasks - Otto Frei
Stainless Steel Perforated Flasks - Otto Frei
Otto Frei

Stainless Steel Perforated Flasks

All 7 options in stock
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$39.00to$62.00
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Description

Perforated flasks hold the investment mold for chamber-style vacuum casting, where the holes along the wall let molten metal be drawn into the cavity from every direction rather than only from the sprue. Otto Frei builds these from 12-gauge stainless steel so they survive repeated burnout and quench cycles in a production casting shop.

The perforated wall is what separates these from solid-wall flasks: the vacuum acts on the mold through the sides, which helps fill thin sections and detail that a single downward pull can leave short. Seven sizes cover flask heights from 4″ to 8-1/2″ and diameters from 3-3/8″ to 5″.

Features

  • Designed for chamber-style vacuum casting machines
  • Perforated sides promote even metal flow into cavities from all directions
  • Helps produce more complete, higher-quality castings
  • Constructed from heavy-duty 12-gauge stainless steel
  • Available in 7 sizes to accommodate a range of casting needs

Available Options

Part # Diameter x Height
121.703 4″ x 4″
121.705 3-3/8″ x 4″
121.706 4″ x 5-3/4″
121.707 4″ x 7″
121.712 5″ x 7″
121.713 5″ x 8″
121.716 4″ x 8-1/2″

Compatibility

These flasks are made for chamber-style vacuum casting machines. Sizes are given as diameter by height, so match the flask to the chamber opening and the working height of the machine before ordering.

Specifications

Brand
Otto Frei
Part #
Varies by size
Type
Casting Flasks
Country of Origin
India
Material
12-gauge stainless steel
Style
Perforated
Compatible Machine Type
Chamber-style vacuum casting machines
Size Format
Diameter x Height
California Prop 65 Warning California Prop 65 Warning:
Cancer and Reproductive Harm. www.P65warnings.ca.gov.

Reviews · 1

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D
Daniel Ballard
Sturdy flasks for casting

We just received our new flasks. They are very well made, put the local competition to shame by comparison. Thank you for carrying the good stuff.

Thanks Dan! We have been very happy with our flask manufacture, really has a nice product.

K
Kat

Will the Kaya Cast vacuum fit the 5 x 7 perforated flask?

OttoFrei.com

The Arbe can be used with both solid and perforated flasks with perforated flasks used set inside the right side vacuum chamber and solid flasks set up on top of the vacuum chamber. Adapter plates are included for using 3-1/2" and 4" diameter perforated flasks and for solid flask casting on top. 5" diameter perforated flasks do not require an adapter plate. Maximum perforated flask size that will invest inside the bell jar and vacuum cast inset in the machine is 5" diameter by 7" tall.