DC Motor Rewinding

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Qualified repair of DC electric motors in Tashkent with the involvement of top-class professionals will ensure fast and high-quality restoration of equipment at minimal cost. If necessary, our specialists can quickly travel to solve problems right at the site of electrical installations. Below we will look at the list of services offered and get acquainted with the types of repaired electric motors.

Types of repair work

  1. Maintenance work represents a set of operations to eliminate faults discovered during the period of scheduled maintenance. The process can involve both replacing damaged elements and rewinding DC electric motors.
  2. Routine electrical repairs. DC motors involves eliminating minor problems that arise during operation.
  3. Urgent is an emergency restoration of equipment in the shortest possible time. This type of repair of DC electric motors in Moscow is quite in demand. The cost of the service is negotiated individually, taking into account the nature of the fault, frequency, kW and other characteristics of a particular model.
  4. Major repairs of DC electric motors are a set of measures for complete disassembly with detailed defect detection of each part and subsequent cleaning, rewinding of the stator and/or rotor winding, replacement (if possible) or repair of damaged elements.

Types of repaired engines

Traction motors are used to drive various vehicles and equipment. Rewinding DC motors of this type requires special skills and experience.

Crane electric motors are characterized by a high magnetic flux, which provides maximum overload capacity, making them the most effective for completing cranes and various lifting equipment.

Elevator electric Motors are part of the drive structure that powers any elevator. Due to the compact size of most models, rewinding DC motors of this category takes no more than 1–3 days.

Main stages of repair of electric motor rotors

Only a qualified specialist can properly repair or rewind a DC motor. During operation, it is important to follow the manufacturer’s technical instructions and strictly adhere to maintenance regulations. Only this approach will guarantee a long, uninterrupted operational period.

To rewind the winding of a DC motor, you must perform the following operations:

  • dismantling and disassembling of the electrical installation;
  • removing the rotor (armature);
  • checking the winding and stator for defects;
  • restoration/replacement of insulation, shaft, collector and other damaged parts (if necessary);
  • rewinding;
  • assembly and diagnostics of equipment.

Repair of DC electric motors in Moscow can be carried out directly at the installation site of the unit or where the machine is parked; the list of necessary repair steps may differ.

Features of repair of electric motor commutators

When rewinding a DC motor, you need to pay special attention to the condition of the commutator. During detailed diagnostics, roughness and scratches are often revealed on its surface, which are signs of serious defects caused by contamination and/or moisture getting inside the structure.

Repair of DC motor commutators includes the following steps:

  • diagnostics of the structure;
  • dismantling of the collector;
  • repair (if possible) or installation of new (refurbished) components;
  • assembly and performance testing.

To quickly and efficiently rewind a DC electric motor or order other types of services, call right now. You can find out the price of repairs in the price list or by calling our manager.

Need repair consultation?

Contact us — we will calculate cost and completion times.

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Answers to popular questions about this service

Frequently asked questions

The repair time depends on the type: routine repair takes 1-2 days, rewinding takes 3-7 days, and overhaul takes 7-14 days. For urgent orders we work around the clock, and most jobs are completed within 1-3 days.

Yes. We provide a written warranty for all types of work: from 6 months for routine repairs up to 12 months for overhauls and rewinding. The warranty covers factory defects and errors in the repair performed.

Yes. We repair electric motors from any manufacturer — local (AIR, 4A, DAZO) and imported (ABB, Siemens, WEG, Mitsubishi and others). We use original spare parts or high-quality analogues.

Yes, an on-site visit by a diagnostic engineer is available in Tashkent and the Tashkent region. We will assess the motor's condition, perform initial diagnostics and draw up a work plan. The cost of the visit is discussed separately.

In most cases, repair costs 2-4 times less than buying a new motor of similar power. This is especially true for motors above 7.5 kW. See our article "Rewinding or a new motor" for a detailed comparison.

After the repair you receive: a certificate of completed work, a warranty card, and a post-repair test report (insulation resistance, no-load current, RPM). All documents can be handed over to your accounting department for asset registration.

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