
Rectangular distribution tanks with formed corrugated side walls that cool the transformer without radiators — panels formed and welded, tank assembled, tested and painted to your print, on a dedicated line for program volume.
A corrugated-wall tank turns the side of the tank into the cooling surface: thin steel is formed into deep, closely spaced fins that are welded at the edges to make sealed oil-filled channels, so the transformer sheds heat through the wall itself and the tank needs no detachable radiators. It is the standard construction for pad-mount and small station distribution transformers, and it lives or dies on two things — corrugation forming that stays consistent panel to panel, and the long edge welds that seal each fin without burn-through.
FabTek fabricates corrugated-wall tanks to OEM print at our Hazlehurst, Mississippi plants: corrugated panels edge-welded into sealed cooling channels, tank floors and frames laser-cut and welded, covers, flanges, bushing pads, drain and fill fittings, lifting lugs and cabinet-mounting provisions installed to print. Every tank is leak-tested before finish and powder-coated in-house to the OEM's color. We build the tank; the core-and-coil and the energized transformer stay with the OEM.
Single- and three-phase distribution tanks with cabinet interface flanges, for pad-mount programs. Pairs with our pad-mount transformer cabinets.
Larger rectangular corrugated tanks for station-class distribution and small power units.
Bolted and welded covers, top frames, bushing pads and fittings to print.
Bolted and welded covers, top frames, bushing pads, pressure-relief and gauge fittings to print.







Pad-mount distribution transformers for utilities, cooperatives and data center campuses; station-class distribution units; transformer remanufacturers replacing damaged tanks.
| Construction | Formed corrugated side walls edge-welded into sealed cooling channels; welded floor, frame and cover interface |
|---|---|
| Material | Carbon steel sheet, gauge per drawing; floors and frames from plate |
| Sizes | Built to the OEM's drawing |
| Testing | Leak test on every tank before finish |
| Welding | AWS-certified GMAW / GTAW; documented inspection |
| Finish | Blast and powder coat in-house to OEM color (Munsell green / ANSI gray typical) |
| Volume | Program quantities on dedicated tank lines |
| Also specified as | Corrugated transformer tank, corrugated fin tank, corrugated-wall tank, fin-wall distribution tank, pad-mount transformer tank, distribution transformer tank |
Representative capabilities — exact ranges, ratings, and finishes are confirmed per project. Send drawings for a firm quote.
Built at four production sites in Hazlehurst, Mississippi.
ISO 9001:2015 quality management, AWS-certified welding, OSHA-compliant facilities.
In-house powder coat backed by an IEEE 2000-hour salt-spray certification.
Reserved-line capacity and the automation to grow with your volume.
Yes — corrugated distribution tanks fabricated to OEM print, leak-tested and painted in-house at our Hazlehurst, Mississippi plants.
FabTek fabricates corrugated-wall, round tube-cooled and fin-wall power tanks for transformer OEMs and remanufacturers, on dedicated production lines.
Yes — tank and pad-mount cabinet from the same floor, on one release schedule.
Yes — every tank is leak-tested before it is finished.
Explore related lines: Transformer tanks · Pad-mount transformer tanks · Power transformer tanks · Round & pole-mount tanks · Pad-mount cabinets
Further reading: Welded vs. bolted transformer tanks · How to qualify a contract tank fabricator






Send the tank drawing and monthly volume — we'll quote the tank line, and the cabinet if you want one source.