Heavy Duty Perforated Casting Flask, Stainless Steel, 4" x 5.7", Medium Size, Vacuum Casting, 1/8" Wall Thickness | Jewellery Making Tools | Toolsmith Ltd UK

Heavy Duty Perforated Casting Flask, Stainless Steel, 4" x 5.7", Medium Size, Vacuum Casting, 1/8" Wall Thickness

£24.99
Sale price  £24.99 Regular price 
Skip to product information
Heavy Duty Perforated Casting Flask, Stainless Steel, 4" x 5.7", Medium Size, Vacuum Casting, 1/8" Wall Thickness | Jewellery Making Tools | Toolsmith Ltd UK
SKU: 62-2OIP-3D4F

Heavy Duty Perforated Casting Flask, Stainless Steel, 4" x 5.7", Medium Size, Vacuum Casting, 1/8" Wall Thickness

£24.99
Sale price  £24.99 Regular price 
In stock — ships from our UK warehouse
Order in for same-day dispatch
Free UK delivery
30-day returns
Secure checkout
UK registered
Free UK deliveryOn every order
Dispatched todayIf ordered before 2pm
30-day returnsNo arguments

For jewellery casters using the lost-wax vacuum method, this heavy-duty flask is a workshop essential. Its perforated design ensures an even vacuum draw through the investment, which is critical for a complete fill and a clean surface finish on precious metal castings.

Key features

  • 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)

Free UK delivery · Same-day dispatch before 2pm · 30-day returns

Specifications
Material Cast iron
Dimensions Approx. 4 inch
Finish Satin finish
Compatibility Metal casting; gold, silver, copper

Is this the right tool for you?

Best for

  • UK professional jewellers performing vacuum lost-wax casting
  • Small-scale UK casting houses producing high-quality metal parts
  • UK dental technicians requiring precise investment casting
  • Workshops needing a robust flask for frequent burnout cycles

Not for

  • Centrifugal casting or pressure casting methods
  • Large-scale industrial casting operations
  • Non-vacuum assisted investment casting
  • Hobbyists seeking a low-cost, less durable option

How this compares

Heavy Duty Perforated Casting... Alternatives
Material Heavy-duty stainless steel Mild steel or aluminium
Wall Thickness 1/8" (approx. 3.2mm) Thinner gauge steel, typically 1/16" or less
Flange Design Wide, solid flange for a secure vacuum seal Narrower or less robust flange, prone to vacuum leaks
Construction Built for repeated heating and cooling cycles in a burnout kiln Lighter construction, suitable for occasional or less demanding use

You may also like