Indco Tools

Stainless Steel Perforated Flask

Drilled-wall stainless steel investment-casting flask in 304/316/310 grade, Ø2″–6″ and 3″–18″ tall, with or without a flange.

  • 304 / 316 / 310 grade
  • With or without flange
  • Cross / parallel / single bar
Fig. 01
Stainless steel perforated investment-casting flask with a cross bar across the opening and a top flange, drilled wall with rows of round vent holes.

The perforated flask is a stainless steel casting cylinder with a drilled wall that lets steam and gas escape quickly during burnout, so the investment vents evenly. Indco Tools rolls it from ERW or seamless stainless pipe and finishes it in our own Mumbai workshop.

It is offered with or without a top flange, and with a locating bar across the opening to hold the wax tree, in cross bar, two parallel bar, or single bar configurations. With-flange flasks add a 7–8 mm flange (outer diameter B + 1″) and are welded top and bottom with submarine-grade TIG.

Product photos

Product gallery

Reference photographs showing finish and construction.

Stainless steel perforated investment-casting flask with a cross bar across the opening and a top flange, drilled wall with rows of round vent holes.
Perforated flask — cross bar
Stainless steel perforated investment-casting flask without a cross bar, drilled wall with rows of round vent holes and a top flange.
Perforated flask — without cross bar
Technical drawings

Engineering drawings

Dimensioned drawings for each variant. Images are watermarked and provided for reference; contact us for a quotable specification.

Technical drawing of the Indco Tools stainless steel perforated casting flask without flange: 3–3.2 mm drilled wall, Ø2″–6″, 3″–18″ tall, with cross bar, two parallel bar, and single bar options and a section view.
Perforated flask — without flange
Technical drawing of the Indco Tools stainless steel perforated casting flask with flange: 7–8 mm top flange (Ø B+1″), submarine-grade TIG welded top and bottom, with cross / two-parallel / single bar options and section A-A.
Perforated flask — with flange
Range
  • With flange

    7–8 mm top flange, Ø(B + 1″), submarine-grade TIG welded top & bottom.

  • Without flange

    Plain perforated cylinder for open-frame and clamp setups.

  • Bar options

    Cross bar · two parallel bars · single bar, each 12 mm wide × 3 mm thick.

Order & enquire

Order perforated flask

Choose your specification and send it straight to our sales team. Need a custom size or OEM packing? Add it in the notes. We respond within one business day.

Specification