Our Corrugated Transformer Tank Machine (also known as Transformer Corrugated Tank Machine, Corrugated Tank Fin Wall Machine, or Transformer Corrugated Fin Forming Machine) is a specialized manufacturing system designed to produce corrugated-wall steel oil tanks for power transformers.
Instead of traditional flat-wall tanks with external radiators, corrugated-wall tanks integrate corrugated fins directly into the tank shell — acting as built-in radiators for efficient heat dissipation. This design results in a compact, lightweight, and structurally robust transformer tank. Many transformer manufacturers worldwide now favor corrugated-wall tanks for their superior cooling, lower oil volume, and space-saving properties.
Our machine (or production line) enables transformer makers and OEMs to manufacture corrugated transformer tanks in-house — from raw steel coil to final fin-wall tank panels — offering high automation, precision, and production efficiency.
What the Corrugated Tank Machine / Production Line Includes
A complete corrugated transformer tank production line typically comprises the following components:
Decoiler Unit
Accepts steel coils (cold-rolled or mild steel) — typical coil width range 300 mm to 1300 mm (often up to 1600 mm).
Coil weight capacity typically 5–7 tons, with optional coil car.
Corrugated Fin Forming Machine / Tank Fin Wall Forming Unit
Automatically forms corrugated fins (wave-style walls) from sheet coils.
Supports sheet thickness typically 0.5 mm – 1.75 mm (depending on model) to suit transformer tank steel.
Fin height / corrugation depth: usually 50–400 mm depending on design.
Fin pitch / distance between waves: commonly 45–80 mm.
Fin wall forming speed: typically ~3 fins per minute (some machines rated 3–4 fins/min) under standard conditions.
Optional features: embossment ribs (reinforcing ribs), edge folding / hemming, pre-set fin count in PLC, adjustable geometry per custom tank drawings.
Shearing / Hemming / Edge Folding Unit (if included)
Cuts formed fins to required tank panel lengths, folds or hems edges to prepare for welding or assembly.
Welding Unit (Seam Welding / Spot Welding / Robotic Welding)
For a full production line, automatic welding of corrugated panels to form sealed oil-filled transformer tanks or tank shells.
Ensures leak-proof joints, strength, compliance with design/drawing requirements.
Control System & Automation
PLC-controlled line (often using brands like Siemens, Schneider, Mitsubishi), with touch-screen HMI, automatic feeding, consistent forming, and repeatability.
Hydraulic system for forming and press operations — stable, durable, with consistent pressure/flow requirements.
Optionally: run-out tables for finished panels, coil cars for decoiling, packing / stacking systems for panel output, welding robots for high-volume production.
Advantages of Corrugated Tank Production Using Our Machines
Cost and material saving: By forming corrugated walls directly from sheet coils and eliminating external radiators, you can save on steel material, insulating oil, tank volume, and overall transformer footprint.
Space-efficient tank design: Corrugated-wall tanks occupy less installation space — valuable for substations or compact installations.
Improved cooling efficiency: The fin walls double as radiators, enhancing oil-air heat exchange naturally (or with forced ventilation), without separate radiator units.
In-house production control: Owning a corrugated tank production line allows you to control quality, lead time, and customize tank shapes/geometry per your transformer design — avoiding dependency on external tank suppliers.
Automation and labor savings: PLC-controlled forming, shearing, welding reduce manual labor and ensure repeatability and precision; single- or two-operator operation is often sufficient.
Scalability & flexibility: Machines can be configured to handle different coil widths, sheet thicknesses, fin dimensions, allowing adaptability across a wide range of transformer tank designs (small distribution transformers to large power transformers).
Quality, reliability, and consistency: With hydraulic forming, precise control, and optional welding, corrugated walls can meet tight tolerances and ensure leak-proof oil-filled tanks suitable for long-term field service.
If you fall into any of the following categories, please contact us for information about transformer corrugated tank forming machines.
Transformer manufacturers (distribution or large power transformers) seeking to produce oil-filled tanks in-house.
OEMs or sub-suppliers supplying transformer tanks or tanks + radiators.
Enterprises aiming to switch from radiator-type tanks to corrugated-wall tanks to save on space, oil volume, and materials.
Firms seeking to improve delivery lead time, quality control, and reduce dependency on external tank suppliers.
Factories with capability to handle coil storage, sheet feeding, and welding infrastructure; especially those producing medium to large batches of transformers annually.
