Remanufactured
Refurbished
Fully rebuilt to like‑new performance, our remanufactured transformers deliver reliable power, reduced lead times, and a cost‑effective alternative to new units.
Receiving & Testing
Every transformer that Maddox remanufactures begins with a full battery of chemical and electrical tests to see what condition it is in, before we begin working on it. This tells us what repairs need to take place in the remanufacturing process.
Remanufacturing
Transformers are then disassembled for an internal inspection. The core and coil is removed, baked out, and if needed replaced or rewound. Damaged components are repaired, and any tank modifications are performed. These may include replacing radiators, adding custom transition sections, or cutting openings for new bushing layouts.
Reassemble
After all changes and repairs are complete, the transformer is completely reassembled. The core and coil are returned to the tank, and all gaskets are replaced. The fluid is then processed, and based on test results, either reused or replaced with new fluid.
Testing
The remanufactured transformer is once again tested to ensure it meets all IEEE C57 and ANSI standards. The unit is then left overnight for a leak and pressure test.
Painting
After passing testing, the transformer is sanded and prepped for paint. Each transformer receives a new coat of protective paint to ensure it looks and works like new.
Quality Control & Shipping
Lastly, the transformer undergoes a rigorous 45-point quality control inspection by our QC team. They also apply all necessary stickers and labels before it is shipped to its new owner.
Shipping rates vary, but are generally 10% of the total purchase price.
Transformers deliver in 3-5 business days.
Ordered the wrong unit, or not sure if a product is right for you? Our web store exchange policy has you covered! We’ll send you a replacement transformer, all you pay for is shipping, plus the difference in unit price. Our policy lasts 30 days. If 30 days have gone by since your purchase, we cannot offer you a refund or exchange, but we still may be interested in buying the unit back. Proof of purchase is required to process a return or exchange.