The cost of stator rewinding directly depends on the power of the electric motor: the more kilowatts, the more copper, insulating materials and time the work requires. In this article, we look at what the price consists of and how power affects the final estimate - without reference to specific numbers, which quickly become outdated.
What determines the price of stator rewinding
Rewinding is not just “winding a new winding.” The final cost is formed from several components, and engine power affects each of them.
- The mass of the winding wire. The main cost item. A 5.5 kW motor contains several times less copper than a 75 kW machine.
- Labor intensity.Laying the winding of a large stator takes longer and requires a more qualified winder.
- Insulating materials and impregnationFor powerful and high-voltage machines, insulation of a higher heat resistance class is used.
- Drying and impregnation.A large stator takes longer to be impregnated with varnish and dried in an oven.
How power affects labor costs
The approximate dependence of labor intensity on power looks like this:
| Engine power | Relative labor intensity | Work period |
|---|---|---|
| up to 5.5 kW | low | 1–2 days |
| 7.5–30 kW | medium | 2–4 days |
| 37–110 kW | high | 4–7 days |
| over 132 kW | very high | from 7 days |
That is why rewinding the stator of a high-power motor costs significantly more - both materials and time increase. However, even for powerful machines, repairs remain more profitable than buying a new engine.
What is included in the cost of rewinding
The transparent estimate from the service in Tashkent usually includes:
- Disassembling the engine and removing the old winding.
- Cleaning and preparing the stator slots.
- Winding a new winding with the winding wire of the required one sections.
- Laying, joining and banding.
- Impregnation with varnish and drying.
- Assembly and acceptance tests.
How to estimate the cost in advance
The exact price is announced after diagnostics: you need to know the condition of the stator iron, insulation class and power. But a preliminary assessment in Tashkent can be obtained based on the type and power of the engine even before delivery - enough data from the nameplate. If the winding is partially burned, it is sometimes possible to partial repair instead of complete rewinding, which reduces the price.
In order not to overpay, compare not only the price, but also what is included in the work: the presence of impregnation, the class of the wire and the warranty. Savings on materials result in repeated repairs in a year.
Do you need an estimate of the cost of rewinding the stator of your engine? Elektromotors engineers in Tashkent will conduct diagnostics and draw up a transparent estimate - contact us.