If your motor has failed and someone has told you it needs rewinding, your first question is probably simple. How much is this going to cost, and is it even worth it compared to buying a new one.
At Deluxe Energy Solutions (deluxeenergy.ae), we rewind motors of all sizes at our workshop in Musaffah, Abu Dhabi, and one of the most common conversations we have with clients is exactly this one. So instead of giving you a vague answer, here is a clear breakdown of what actually drives the cost of motor rewinding, and when it makes more sense to walk away and replace the unit instead. If you want a quote on your specific motor, message us on WhatsApp
What Rewinding Actually Involves
Rewinding means removing the old copper windings inside the motor’s stator and replacing them with new ones, along with reinsulating and testing the motor afterward. It is not a quick patch job. Done properly, it restores the motor close to its original performance.
The cost depends on several factors, and none of them are fixed across the board.
What Drives the Cost Up or Down
1. Motor Size and Horsepower
This is the biggest factor. A small LV motor under 50HP costs far less to rewind than a large HV motor or an industrial motor above 200HP. Bigger motors need more copper, more labor hours, and more careful handling.
2. Type of Failure
Not all failures are equal. A simple winding burnout from age is more straightforward to fix than a motor that failed due to water damage, bearing seizure, or a shaft issue. If the failure damaged the core laminations or the shaft, the repair cost goes up because more than just the windings need attention.
3. Copper Prices
Copper is a commodity, and its price shifts over time. Since windings use a significant amount of copper wire, rewinding costs can move up or down slightly depending on current market rates, though this is usually a smaller factor compared to motor size.
4. Testing and Balancing After Rewinding
A proper rewind is not finished once the new windings are in place. The motor should go through insulation resistance testing, surge testing, and dynamic balancing before it is considered ready. Skipping these steps might lower the price, but it also increases the risk of an early repeat failure.
5. Urgency
If you need the motor back within a day or two because your production line is down, expedited service usually costs more than a standard turnaround. This is worth knowing upfront so there are no surprises later.
A Rough Way to Think About It
As a general rule, rewinding a motor typically costs somewhere between 30 to 60 percent of the price of a brand new equivalent motor, depending on size and the extent of the damage. For smaller motors, replacement can sometimes be cheaper once you account for rewinding labor costs relative to the low price of a new small unit. For larger or specialized motors, rewinding is almost always the more economical choice, since replacement units can take weeks to source and cost significantly more.
When Rewinding Isn’t Worth It
There are a few situations where replacing the motor makes more sense than repairing it:
- The motor has failed multiple times in a short period, which suggests a deeper underlying issue
- The core laminations are damaged beyond repair
- The motor is old enough that spare parts are difficult to source
- A newer, more energy efficient motor would pay for itself in reduced power consumption within a reasonable timeframe
A real example from our workshop: a client brought in a 15HP motor that had already been rewound twice before by another provider. On inspection, we found the core laminations were damaged from the earlier repairs, which was causing repeated overheating. In that case, we recommended replacement rather than a third rewind, since another repair would likely have failed again within months.
How to Get an Accurate Quote
The only reliable way to know your actual cost is to have the motor inspected first. Anyone quoting a price without seeing the motor or knowing the failure type is guessing. A proper quote should come after:
- Visual inspection of the stator and windings
- Insulation resistance testing
- Assessment of the shaft, bearings, and core condition
This tells you not just the cost, but whether rewinding is even the right call for your specific motor.
FAQs
For larger or specialized motors, rewinding is usually cheaper and faster than sourcing a replacement. For small, low-cost motors, buying new can sometimes work out cheaper once labor and turnaround time are factored in.
Turnaround time depends on motor size and the extent of the damage, but most standard rewinds are completed within a few days to a week. Larger industrial motors or those needing additional repairs can take longer.
A motor can technically be rewound multiple times, but each rewind puts additional stress on the core laminations. If a motor has already been rewound once or twice, it is worth having the core inspected before deciding to repair it again.
A proper rewinding service includes removing the old windings, installing new ones, reinsulating the stator, and testing the motor through insulation resistance and surge testing before it is balanced and returned to service.
The Bottom Line
Motor rewinding cost depends on the motor’s size, the type of failure, and whether proper testing is included in the service. It is usually the more economical choice for medium to large motors, but it is not always the right call, especially if a motor has already failed repeatedly.
If you want an honest assessment of whether your motor should be rewound or replaced, Deluxe Energy Solutions in Musaffah, Abu Dhabi can inspect it and give you a clear answer. Message us on WhatsApp or visit deluxeenergy.ae.
