A coated flat-wall transformer tank standing on the floor of a bright TSY production hall

01 · Manufacturing at scale

Transformer tanks & mechanical components

Plate to finished tank.

TSY Energy is a specialized manufacturer of transformer tanks and mechanical components for transformer manufacturers. Steel plate is cut, formed, machined, welded, coated and tested in our own halls before it leaves as a finished tank.

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A large power transformer under assembly in a TSY production hall, seen across the shop floor

02 · Four product families

Flat wall tanks & clamping structures

From SPT to LPT.

Tanks for small, medium and large power transformers, and the clamping structures that hold the active part, all cut, formed, machined, welded and coated in our own facilities.

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A TSY welder working on a large flanged component in the production hall

03 · Welded fabrication

Welded fabrication & inspection

Welded and verified.

Tank walls, covers and clamping structures are welded and assembled in our own halls, then leak and pressure tested, with NDT and dry film thickness checks recorded per the order specification.

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Total Area
16,900 m²
Production Area
12,000 m²
Annual Capacity
4,800 tons
Employees
200+
Hitachi Energy GE Vernova Siemens Energy
Product Families

Built for demanding
transformer applications.

Our core expertise lies in manufacturing high-specification and complex transformer tanks and clamping structures for securely holding the transformer active part, all produced to customer-specific designs.

Tank manufacturing includes project-specific piping, equipment integration and final adaptations, combining precision manufacturing, engineering know-how and rigorous quality standards to meet demanding transformer applications.

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A coated flat-wall transformer tank on the assembly floor, with a second tank behind it 01

Small Power Transformer (SPT) Tanks

Manufactured to customer-specific designs for distribution and small power transformers, with individual tank weights below 7 tons and project-specific piping, equipment integration and connection details.

  • Tank weights below 7 tons
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A primed transformer tank standing inside the paint booth 02

Medium Power Transformer (MPT) Tanks

Manufactured to customer-specific designs for medium power transformers, with individual tank weights from 7 to 20 tons, supporting demanding specifications, complex configurations and integrated piping and equipment.

  • Tank weights from 7 to 20 tons
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A power transformer under assembly in the production hall, with the conservator mounted above the tank 03

Large Power Transformer (LPT) Tanks

Manufactured to customer-specific designs for large power transformers, with individual tank weights up to 35 tons, with a strong focus on high-specification, complex configurations and demanding project requirements.

  • Tank weights up to 35 tons
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Across all tank families

  • Flat-wall structural steel plate construction
  • S235, S355, S355NL & stainless steel options and more
  • 100% leakage testing
  • NDT inspection & testing
  • Protective coating systems up to CX
  • Water- and solvent-based coating systems
  • Customer-specific manufacturing to approved designs
  • Project-specific piping & equipment integration
  • Precision-machined connection flanges

Active part clamping structures

  • S355 & more structural steel grades
  • S690QL & S960QL high-strength steel grades
  • SS304, SS316 & more stainless steel grades
  • High-speed deep-hole drilling for tie-rods
  • Short-circuit mechanical force resistance
Production Story

From raw steel to
finished tank.

Every stage is managed within our own facilities. Follow the sequence below as the tank takes shape, one operation at a time.

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Schematic elevation of a flat wall transformer tank, built up stage by stage: steel plate, cut profile, formed walls, machined cover flange, welded seams and stiffeners, mounted turrets and cooling connections, blast-cleaned surface, applied coating, inspection points and shipping skid.
Large power transformer tank: a 3D illustration of the manufacturing sequence. Dimensions are not shown.

  1. 01 Raw material

    Steel plate arrives with its mill certificate and is identified against the order.

  2. 02 Cutting

    Plates are cut to profile; openings and reinforcement outlines are prepared.

  3. 03 Forming

    Cut plates are bent and formed into tank walls, flanges and stiffener profiles.

  4. 04 Machining

    Cover flange and sealing surfaces are machined in-house to oil-tight tolerances.

  5. 05 Welding

    Plate seams and stiffeners are welded into a single, oil-tight structure.

  6. 06 Assembly

    Bushing turrets, cooling connections and lifting lugs are fitted to the tank body.

  7. 07 Surface preparation

    Blast cleaning brings the surface to the cleanliness grade required by the coating system.

  8. 08 Coating

    The coating system specified with the order is applied and film thickness is measured.

  9. 09 Inspection & shipment

    Leakage, pressure, NDT, adhesion and DFT checks are recorded; the tank is packed and shipped.

Quality Control

Verified,
not assumed.

Leakage Pressure NDT Adhesion DFT

Leakage & Pressure Testing

Finished tanks are tested for tightness before dispatch; an oil-tight structure is the product's first requirement, and it is confirmed by test, not by assumption.

NDT Inspection

Non-destructive testing is applied to welds where the specification requires it, and results are recorded with the product documentation.

Coating Verification

Dry film thickness is measured across the tank and adhesion is checked, confirming the coating has bonded to the prepared surface.

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A TSY quality control inspector, seen from behind, shining a UV lamp inside a large power transformer tank; the welded stiffener seams glow green
A magnetic particle yoke placed across the weld of a lifting lug on a tank cover, lit by a hand torch
Production Network

One network.
Three facilities.

All three facilities operate in Gebze, Kocaeli, Türkiye's industrial corridor, specialized in transformer flat wall tanks and clampings.

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Facility 01 · HQ

Headquarters & Factory

563. Sokak No: 13, Gebze
Kocaeli 41400, Türkiye
Facility 02

Factory

563. Sokak No: 17, Gebze
Kocaeli 41400, Türkiye
Facility 03

Factory

İstanbul Caddesi No: 71, Gebze
Kocaeli 41400, Türkiye

16,900 m² total area 12,000 m² production area 4,800 t/year capacity 200+ employees Combined totals

Ready for your
next project?

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info@tsyenergy.com +90 (262) 658 2102 Gebze, Kocaeli, Türkiye

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