
Engineering & Projects · Built to drawing
Mandrels
Mandrels take punishing thermal and mechanical duty in coiling, forming and processing lines. SES manufactures mandrels to drawing with the metallurgy, machining tolerance and surface finish the application demands, and reverse-engineers obsolete mandrels where the original is no longer available. It is part of SES Group's engineering and projects arm — the in-house side of the business that takes over when the catalogue has nothing to offer. We cover manufacture to drawing (300 mm & 500 mm dia proven), material and heat-treatment selection and precision machining and finishing, and manufacture to your drawing rather than to a stock list. Material, dimensional tolerance and surface finish are specified for the duty the part actually carries, then inspected and documented before it leaves the works. The work runs into coiling and forming lines and processing lines in steel and aluminium. Delivered 300 mm and 500 mm dia mandrels for Hindalco Renukoot; ran root-cause analysis of mandrel service for Jindal Stainless Jajpur.
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Have a drawing or a problem?
Send the specification or the failure — we reply on WhatsApp.
Trusted across Metals & Energy
Supplying India’s Industrial Names.
From integrated steel plants to power utilities and EPC majors — the works that cannot afford a counterfeit part specify through SES.










































Manufacture to drawing (300 mm & 500 mm dia proven)
Material and Heat-treatment Selection
Precision Machining and Finishing
Reverse Engineering of Obsolete Units

Built to drawing, not adapted from stock.
Mandrels are made to your drawing and duty, not adapted from a shelf item. In practice the scope covers manufacture to drawing (300 mm & 500 mm dia proven), material and heat-treatment selection, precision machining and finishing, reverse engineering of obsolete units and dimensional inspection and documentation. Where an original is obsolete or was never catalogued, we reverse-engineer it from the failed part and the operating condition — material, dimensional tolerance and finish specified for the job it actually has to do. Everything is inspected and documented before it leaves, because on the engineering side of the business a part that is almost right is a part that comes back.
Where it fits on the plant.
This is equipment that earns its keep on the plant floor — it runs into coiling and forming lines and processing lines in steel and aluminium. Delivered 300 mm and 500 mm dia mandrels for Hindalco Renukoot; ran root-cause analysis of mandrel service for Jindal Stainless Jajpur. In this kind of service the cost of a part that is almost right is never just the part — it is the line it sits on and the production it stops. The point of building it rather than buying it is fit: the part matches the machine, the duty and the constraint in front of you, and one accountable partner stands behind the design, the manufacture and the outcome — not three vendors pointing at each other when it fails.

Need mandrels built for your plant?
Send the drawing, the specification or the problem behind mandrels. We will come back with an approach, a price and a realistic lead time — and where it helps, our engineers will walk the design and the fit with your maintenance team before anything is committed.
