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Thermal Oxidizer Shells & Stacks

Oil & gas · Flare systems

Thermal Oxidizer Shells & Stacks

Horizontal combustion chambers, transitions and stacks for thermal oxidizers: rolled and stiffened shells, saddles, expansion joints, stack supports and platforms, built for the licensor.

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Allmarc 3D model · to scale

Explore the model

How it is built.

Scroll: the camera moves to each part in turn and ends on the exploded view. Drag to turn it round yourself.

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A thermal oxidizer

Waste gas is burned in a horizontal chamber and leaves through the stack. Sizes follow the licensor’s process design.

Scroll to see how it is built · drag to turn it round

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The chamber

A rolled chamber with a dished head, welded course by course and checked for roundness.

How is it possible at Allmarc?

Three-roll pinch cum pyramid plate rolls in the Allmarc works

Used here for: The chamber

Rolls plate up to 40 mm

All our machinery

Used here for: The chamber

Full-penetration welds on built-up sections

All our machinery

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Stiffener rings

Rings that keep the shell round when it is hot.

How is it possible at Allmarc?

Used here for: Stiffener rings

In 2024 we were the only buyer of Deratech’s 20 kW, 12 m laser.

20 kW
12 x 3 m bed
Pallet changer

All our machinery

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Transition and elbow

A cone and a rolled elbow into the stack, with an expansion joint for growth.

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Stack

The stack on its own frame, with stiffener rings.

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Saddles and access

Fixed and sliding saddles under the chamber; a sampling platform and caged ladder on the stack.

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Burner

The licensor’s burner and air plenum.

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A kit of parts

Chamber, rings, transition and stack: every member numbered, match-marked and packed in erection sequence.

Why Allmarc

Experience you can trust.

We fabricate to your drawings and prove the fit in our own bay before anything ships. Open any line for the detail.

Talk to an engineer

Fabricated to your drawings

We build to the licensor’s design.
We do not compete with the people who send us work.

Proven before it ships

Trial-assembled in our bay.
Fit-up is settled in Ahmedabad, not on site.

Plate to packed container

Procurement, rolling, welding and NDT, coating, insulation.
Export packing designed for the journey.

Scale

Made in Unit 2, our precision plant for oil and gas; 4 plants at Kanbha, about 6,000 T a month from November 2026.
2,400 tonnes of flare equipment exported to date.