Tripod Stand, Heavy Cast Iron

Quick Answer: The Tripod Stand, Heavy Cast Iron is a three-legged support for heating over a Bunsen burner, with a thick cast ring at the top that holds a wire gauze, beaker or pipeclay triangle. The listing photograph shows a black cast iron ring on three bright metal rod legs, each with a black foot cap.

Where the Weight of a Cast Iron Tripod Helps

School heating practicals put a surprising amount of sideways force on a tripod: a student reaches across it, a burner tube is pulled, a beaker is stirred. A cast iron tripod stand carries mass at the point where the load sits, so it resists being nudged across the bench and does not bend when a heavy water bath or a large beaker of liquid is placed on the gauze. Casting also gives a broad, flat top face, which spreads the weight of the gauze instead of balancing it on a thin wire.

Cast iron copes well with direct flame, but it is brittle compared with steel. A cast ring dropped onto a tiled floor can crack, and a cracked ring should be withdrawn, because it may fail when hot. The black paint usually seen on cast tripods darkens or flakes where the flame touches it; that is cosmetic, but the bare iron then needs to be kept dry to stop rust.

The foot caps in the photograph stop the rod legs scratching or sliding on the bench. The height of the stand is fixed, so the burner flame is adjusted to suit: with a gauze in place, the tip of the inner blue cone should sit a little below the gauze.

Specifications

Applications

• Heating water or solutions in beakers on a wire gauze over a Bunsen burner
• Heating crucibles on a pipeclay triangle to decompose carbonates or find water of crystallisation
• Supporting a water bath or sand bath for longer heating
• Specific heat capacity and calorimetry practicals that need a steady, fixed-height support

Care & Handling

• Allow the stand to cool on a heat-resistant mat before moving it; the cast ring stays hot long after the flame is out.
• Dry the stand if water or solution boils over, as bare iron rusts quickly.
• Store tripods standing on a shelf, not thrown into a drawer, so the cast ring is not chipped or cracked.
• Replace lost foot caps so the legs do not scratch or slip on the bench.

Why Choose LabEquip

Schools and colleges equipping several chemistry benches at once usually choose heavy tripods for younger classes, where stability matters most. LabEquip lists this stand in its General Lab Products range together with lighter options such as the wire type mild steel tripod; contact LabEquip with the number of benches you are equipping.

Frequently Asked Questions

Why choose a heavy cast iron tripod over a wire tripod?

The cast ring adds weight and a broad top face, so the stand is harder to knock over and carries heavier loads such as a water bath without bending. A wire tripod is lighter and easier to store but less stable.

Where should the Bunsen flame be relative to the gauze?

Adjust the burner so the tip of the inner blue cone sits just below the gauze. The hottest part of the flame lies just above that tip, so heating is quickest there.

Can the tripod be used with an electric burner?

Yes, if the burner fits between the legs and its top sits below the ring with a safe gap. Compare the burner height with the tripod height before buying.

Why has the paint on the tripod ring gone dull?

Paint on the ring is exposed to the flame and darkens or flakes with use. This does not weaken the iron, but keep the bare metal dry to prevent rust.

Is cast iron likely to crack when heated?

Normal burner heating is not a problem. Cast iron is brittle under impact, though, so a stand that has been dropped should be checked for cracks in the ring before it is heated again.

What do I place on the tripod to heat a crucible?

Use a pipeclay triangle resting across the ring, with the crucible sitting in the triangle. The triangle holds the crucible directly in the flame, which a gauze would not do.

Last Updated: September 2026