Vacuum Casting Flask — Heavy Duty Perforated Stainless Steel, 4" × 5.7" Medium, 1/8" Wall

A perforated flask for lost-wax vacuum casting. The open walls let the vacuum table pull air evenly through the investment, so molten metal reaches thin sections and fine detail — the difference between a complete fill and a re-melt. Sized for standard medium-scale jewellery casting machines, it suits gold, silver and non-precious alloys where a clean surface matters.

The body is heavy-duty stainless steel with a 1/8" wall, built for repeated burnout and cooling cycles in the kiln, and the wide solid flange seats cleanly against the vacuum table gasket. Small casting houses, bench jewellers and dental technicians will find it drops straight into an existing setup.

• Perforated walls allow consistent vacuum pressure across the entire investment.
• Constructed from heavy-duty stainless steel with a 1/8" wall thickness for durability.
• Features a wide, solid flange for a secure seal against the vacuum table gasket.
• Sized at 4" x 5.7" to fit standard medium-scale jewellery vacuum casting machines.
• Designed for repeated heating and cooling cycles in a casting burnout kiln.

Who it's for

Built for professional UK jewellery makers, small-scale casting houses, and dental lab technicians who rely on vacuum-assist casting. It is suitable for casting precious metals like gold and silver, as well as non-precious alloys where a high-quality surface is required.

Specifications

• Material: Stainless Steel
• Outer Diameter: 4" (approx. 102mm)
• Height: 5.7" (approx. 145mm)
• Wall Thickness: 1/8" (approx. 3.2mm)

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