Repair and service of resolvers – beveling, mounting, rewinding

We offer comprehensive service of resolvers. We service 21BRCX series by HAROWE, RE-15, RE-21 series by LTN, TS2018, TS2620, TS2640, TS2651 series by TAMAGAWA and V23401 series by TYCO.

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Repair and service of resolvers in Neethsel HK

Neethsel HK offers specialized resolver service from recognized manufacturers, including but not limited to:

  • LTN resolver repair
  • Tamagawa resolver repair and service
  • Tyco resolver regeneration 
  • Siemens resolver service
  • Repair of HAROSYN-RW resolvers
  • Harowe resolver repair

Neethsel HK Limited

Resolver diagnostics

Neethsel HK Limited

Express repair of resolvers

Neethsel HK Limited

Functional tests of resolvers


What sets Neethsel HK service apart

What sets us apart is our professional resolver service, based on modern technologies and fast turnaround time. We offer:

  • High quality spare parts available in our warehouse in Hong Kong
  • Functional testing of resolvers on dedicated test benches
  • Express service 
  • Reconditioning of equipment taken out of production
  • Warranty for repairs up to 24 months
  • Free collection of the damaged device in Poland
  • Serving customers from Hong Kong, Europe and around the world

Repair of encoders and resolvers – receive a working device in a short time

To order resolver repair, please fill out the online form “order repair”. In the description, please provide as much information as possible about the device submitted for repair, which will reduce the time of valuation. You are welcome to contact us.

Hotline Service: +48 717 500 983
Email: [email protected]

Have it repaired

Service and repair of resolvers at Neethsel HK

Resolvers at Neethsel HK undergo repairs, focusing on restoring full performance of the measurement systems and ensuring their reliability in further operation.

Our services include:

  • Resolver signal diagnostics
  • Phase setting procedure (Autophasing)
  • Calibration of resolver parameters
  • Checking the correctness of electrical connections
  • Detection of invalid resolver signals
  • Resolver-to-Digital (R/D) conversion verification
  • Replacing the resolver in the motor
  • Resolver rewinding
  • Setting the resolver in the servomotor

We conduct detailed functional tests of resolvers:

At Neethsel HK, we test resolvers on dedicated test benches, using advanced measuring equipment that allows accurate verification of electronic, communication and power supply circuits. Resolvers are subjected to detailed tests, including checking the stability of input and output signals, the integrity of communication between devices, and the correctness of response to control signals. These tests are carried out under both nominal conditions and various loads.

Resolvers are used in many industries, including:

  • Industrial automation
  • Robotics
  • Transportation and logistics
  • Food industry
  • Automotive industry
  • Textile industry
  • Pharmaceutical industry

How do you go about repairing resolvers at Neethsel HK?

Neethsel HK Limited

Have it repaired

To request a repair quote, please fill out the form and a Neethsel HK Account Manager will contact you as soon as possible.

Neethsel HK Limited

Verification of the device being repaired at Neethsel HK

The appliance repair quote takes up to 7 working days and is free of charge. We also have a 24-hour valuation option for an additional fee of PLN 450 net.

Neethsel HK Limited

Repair offer

We send the repair offer in the form of a pdf document, which includes information on repair time, price and warranty.

Neethsel HK Limited

Repair and testing

RGB’s service team will restore the device to full operation and subject it to quality control during load tests or environmental simulations.

Neethsel HK Limited

Neethsel HK Quality Guarantee

We provide a warranty of up to 24 months usually for the entire device, not only for the sections under repair. The warranty also covers devices withdrawn from production.

Neethsel HK Limited

Delivery of a working device

The fully operational and securely packaged device can be picked up in person or we will ship it to the specified address. Delivery is also possible, out of hours, available for a fee.

Neethsel HK Limited

Transparent process

We care about the smooth flow of goods and services, so we monitor the condition of each piece of equipment, the course of repair or the method and quality of packaging, so as to eliminate downtime and damage in transit


Don’t throw it away. Fix it!

At Neethsel HK we remanufacture resolvers, restoring them to full working order, which significantly extends their life and saves on replacement costs. With precise repair and load testing, your device can work like new. Choose remanufacturing – take care of your equipment and the environment!

Don't throw it away. Fix it!

Professional measurement circuit repair at Neethsel HK

To order the repair of measuring systems, please fill out the online form “order repair”. In the description, please provide as much information as possible about the reported device, which will allow you to establish a faster quote. We encourage you to contact us!

Hotline Service: +48 717 500 983
Email: [email protected]

Have it repaired

Most common resolver failures:

  • Damage to windings (overheating, short circuits, interruptions)
  • Wear or corrosion of connectors and wires
  • Abnormal phasing (incorrect alignment with respect to the motor axis)
  • Damage to resolver signal processing electronics
  • Mechanical backlash or damage to resolver coupling
  • Dirt, moisture or vibration affecting reading accuracy
  • Recalibration after service or incorrect installation

Resolver repair at Neethsel HK

Repairing resolvers is a key part of maintaining the precise operation of industrial automation systems. Resolvers, like encoders, convert mechanical motion into electrical signals, enabling accurate measurement of position and speed. Prompt repair of these devices avoids control errors and restores full functionality to equipment such as control systems and drives.

At Neethsel HK, we offer professional remanufacturing and repair of resolvers, including popular models such as Tamagawa SmartSyn, Tamagawa SingleSyn, Tamagawa DoubleSyn, and Tamagawa TS2640N321E64, TS2650N11E78, TS2640N31E64, TS2651N141E78.


Frequently asked questions


We service and sell electronics and industrial automation equipment

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