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GENERAL DRIVER MOTOR · Industrial technical service

Industrial servo motor repair

Diagnosis, repair and test-bench verification of brushless servo motors, feedback systems, windings, brakes, bearings and commutation systems.

Request a diagnosisContact us about your servo motor

Comprehensive diagnosis
Electronic, electrical and mechanical.

Test-bench validation
Functional validation before delivery.

Traceability
Test records and final report.

Machine stopped or at risk of downtime

When drive alarms, position loss, vibration, overheating or intermittent faults appear, the complete system should be diagnosed before components are replaced without a clear technical basis.

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We repair the servo motor by addressing the root cause, not just the symptom

The goal is not simply to make the motor turn again. The goal is to return it validated, documented and ready to go back into production.

01 · Feedback and position

Diagnosis of incremental, absolute and serial encoders, including TTL, HTL, Hiperface, EnDat and SSI, as well as resolvers.

02 · Windings and insulation

Insulation testing, dielectric testing, winding verification and electrical analysis of the stator.

03 · Electronic commutation

Alignment and verification of commutation signals to prevent synchronisation errors with the drive.

04 · Critical mechanical components

Inspection of bearings, seals, brake, vibration and noise, including static and dynamic balancing where applicable.

05 · Rotor magnetism

Measurement and verification of the rotor magnetic field to detect loss of performance or abnormal behaviour.

06 · Final validation

Functional testing, recorded measurements, operating evidence and a final service report.

Repair process

01

Reception and identification

Brand, model, symptoms, application and operating conditions.

02

Technical diagnosis

Electrical, electronic, mechanical and feedback-system tests.

03

Quotation

Repair proposal based on the detected cause and technical feasibility.

04

Repair work

Repair of the affected components and any necessary adjustments.

05

Test-bench validation

Functional testing and verification of servo motor performance.

06

Final report

Delivery with test results, measurements and full traceability of the work carried out.

Available tests and test benches

  • Testing and analysis of serial, incremental and absolute encoders.
  • Diagnosis of resolvers, Hall-effect sensors and tachogenerators.
  • Baker ST 203 insulation test.
  • Tecnolab RD 6 dielectric test.
  • Rotor magnetic-field measurement.
  • Static and dynamic balancing.
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Validation under industrial conditions

  • Brushless servo motor test benches with Nm torque transducer.
  • CNC test benches for FANUC, SIEMENS, B&R, INDRAMAT and BOSCH.
  • Drive and controller test benches.
  • KUKA and ABB robot test benches.
  • AC/DC drives up to 100 kW.
  • Final inspection and verification report.

Multi-brand service for industrial environments

We work with servo motors commonly used in machine tools, CNC systems, robotics, packaging, automotive applications and production lines.

Repair of obsolete and discontinued industrial servo motors

An industrial servo motor becoming obsolete or discontinued, or the OEM no longer providing support or spare parts, does not necessarily mean that the motor has to be replaced.

GDM diagnoses and repairs multi-brand industrial servo motors, including legacy equipment for which OEM support has ended. Before deciding on the repair strategy, we assess the actual condition of the servo motor and check the components that may determine whether it can be recovered: windings, bearings, shaft, brake, encoder, resolver and other feedback systems.

When technically feasible, our objective is to recover the original servo motor and extend the service life of the machine. Depending on the diagnosis and component availability, the solution may involve repair, remanufacturing, adaptation of an obsolete component or, when necessary, assessment of a compatible modern alternative.

The lack of an original spare part should not automatically lead to replacement of the complete servo system. The first step is to determine what has failed and which parts of the original equipment can still be recovered.

Has the manufacturer stopped supporting your servo motor?

Send us the manufacturer, exact part number and photographs of the nameplate, together with the fault or alarm detected. GDM can assess whether the servo motor can be repaired, whether its feedback system can be recovered or adapted, or whether a technically viable alternative should be considered.

ASK US ABOUT AN OBSOLETE SERVO MOTOR

New or refurbished equipment

Ask us about availability for purchase or exchange.
Send us the exact brand and model so we can check the equipment and available options.

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Do you have a servo motor that has stopped or is showing an intermittent fault?

Request a technical diagnosis from GDM and confirm the best option before replacing the complete unit.

Request a diagnosis