Brushes and commutator
Sparking, worn brushes, grooved or burnt commutator, brush holder and spring faults.
Repair · India · Bengaluru, Chennai, Puducherry
DC motor repair and DC drive repair in India
Star Automations repairs DC motors (PMDC, brushed DC, DC servo and wound-field) and repairs industrial DC drives and SCR (thyristor) drives from all leading brands, including WEG, at component level. We rebuild armatures, commutators, brushes, bearings and feedback, repair drive power stages and control cards, and run-test every unit before return. Emergency same day, urgent 3 working days, standard 7 working days. We are an independent multi-brand repair company, not an OEM service centre.
DC motor faults we repair
Send the nameplate and a photo of the fault. We inspect, find the cause and quote before repair.
Armature and field winding
Shorted, open or earthed armature, weak or burnt field coil, rewinding and insulation.
Bearings and shaft
Bearing noise, shaft wear, end-cap and fit faults, balance and alignment.
Speed and feedback
Tachogenerator, encoder and Hall feedback faults, loss of speed or torque.
DC drive and DC motor controller repair
If the motor is good but the machine will not run, the DC drive is often the cause. We assess DC drives, SCR (thyristor) drives and DC speed controllers, multi-brand.
Power stage
Thyristor or transistor bridge, fuses, snubbers, contactor and supply faults.
Control and firing cards
Firing, regulator and interface card faults, tuning and calibration.
Field supply and power supplies
Field controller, SMPS and auxiliary supply faults.
Test before return
Bench test with a motor load, with a report on what was found and repaired.
Related: AC drive (VFD) repair, servo drive repair and BLDC motor controller repair.
Industrial DC drives we repair: all leading brands
We repair industrial DC drives and SCR (thyristor) DC drives from the leading makers, including older and discontinued models. Send the make, model and fault for a repairability check.
- Siemens SIMOREG
- ABB DCS series
- Parker / Eurotherm SSD 590
- Emerson / Control Techniques Mentor
- WEG DC drives
- GE
- Rockwell / Allen-Bradley
- Fuji Electric
- Mitsubishi
- Yaskawa
- Hitachi
- Toshiba
- Kirloskar
- Other makes on request
WEG DC drives. Star Automations is a WEG service partner and repairs WEG DC drives and motors. Send the drive label and the fault.
How DC motor repair works
- Send details. Nameplate photo, fault and quantity on WhatsApp or the quote form.
- Courier or hand in. Bengaluru, Chennai or Puducherry, or by transport from anywhere in India.
- Inspect and quote. We open the unit, find the cause and quote repair or replacement.
- Repair and test. Rewind, rebuild or replace parts, then run-test the motor or bench-test the drive.
- Return. Packed and dispatched with a test report.
Repair not worth it? We can build a new DC motor
Star Automations also designs and manufactures custom DC and PMDC motors from 12 V to 90 V DC, and for 200 to 240 V AC drive input, to your sample, drawing or specification. See DC motor manufacturing and DC servo motor repair.
DC motor and DC drive repair questions
Which DC drive brands do you repair?
All leading industrial DC drive brands, including Siemens SIMOREG, ABB DCS series, Parker / Eurotherm SSD 590, Emerson / Control Techniques Mentor, WEG, GE, Rockwell, Fuji Electric, Mitsubishi, Yaskawa, Hitachi, Toshiba and Kirloskar, plus older and discontinued models. Send the make, model and fault.
Do you repair WEG DC drives?
Yes. Star Automations is a WEG service partner and repairs WEG DC drives and motors. Send the drive label and the fault.
Do you repair SCR (thyristor) DC drives?
Yes. We repair the thyristor power stage, firing and control cards, field supply and power supplies of SCR DC drives, then bench-test the drive before return.
Do you repair DC motors?
Yes. We repair permanent-magnet DC (PMDC), brushed DC, DC servo and wound-field DC motors: armature and commutator work, brush gear, field coils, bearings, shaft and feedback, followed by a run test. Send the nameplate and the fault for a first assessment.
Do you repair DC drives and DC motor controllers?
Yes. We assess DC drives, SCR (thyristor) drives and DC motor speed controllers at component level: power stage, firing and control cards, field supply and power supplies. Send the make, model and fault for a repairability check before any repair is started.
What are common DC motor faults?
Sparking brushes, worn or grooved commutator, shorted or open armature winding, weak or burnt field coil, bearing noise, overheating, loss of speed or torque, and a failed tacho or encoder.
Can a DC motor be repaired instead of replaced?
Often yes. Brushes, bearings, commutator, armature and field coils are repairable. After inspection we tell you whether repair is economical, and we can also build a replacement DC motor to your specification.
How long does DC motor repair take?
Emergency same day, urgent 3 working days and standard 7 working days, where the fault and parts allow. The timeline is confirmed on the quote.
Is there DC motor repair near me?
We work from Bengaluru, Chennai and Puducherry, and receive motors and drives from across India by courier or transport. Send photos of the nameplate and the fault on WhatsApp.
Can you make a new DC motor if mine is obsolete?
Yes. We design and manufacture custom DC and PMDC motors from 12 V to 90 V DC, and for 200 to 240 V AC drive input, to your sample, drawing or specification. See DC motor manufacturing.
What should I send for a quote?
The motor nameplate (voltage, power, speed), photos of the fault, the drive or controller used if any, and the quantity. For a drive, send the make, model and fault description.
Send the nameplate and the fault.
Email info@starautomations.com, call sales on +91 95855 50109 or WhatsApp a photo.
Brand names identify the units we repair. Star Automations is an independent multi-brand repair company. It is a service partner of WEG.