DC Industrial Motor Repair Services in Michigan
A&C Electric provides DC motor repair to companies in Michigan, Ohio and Indiana for major motor types. We handle repairs in-house and maintain a large inventory of refurbished DC motors for sale.
When a DC motor fails, lost time leads to lost output. Our technicians move quickly to diagnose and repair industrial motors with minimal delay. To help reduce unexpected breakdowns, we also offer motor management and exchange services to keep operations moving.
Every job is completed in-house by a team with decades of experience. Older or heavily worn motors can be rebuilt faster than replacement and at a lower cost. Contact us today for a quote on DC motor repair in Michigan or across the Midwest.
DC Motor Repair Process
Our team follows a proven repair workflow using advanced equipment and precision testing:
-
Dismantling and Cleaning
Every mechanical part is disassembled, cleaned and steam-washed.
-
Reconditioning
Damaged or contaminated parts are restored. We also run insulation and dielectric tests.
-
Electrical Testing
We perform surge, hi-pot, resistance and vibration tests to detect failure points.
-
Winding Restoration
Windings are reinsulated and baked. Stators are rewound, dipped and cured.
-
Component Repairs
We resleeve bearing housings and metalize worn shafts.
-
Balancing & Bearings
Rotors are balanced and fitted with new bearings and seals.
-
Final Assembly
Units are reassembled, tested under load and painted for return.
Every completed repair includes a detailed service report outlining what was done and why. This helps reduce future downtime through proactive maintenance.
Contact A&C Electric for dependable DC motor repair in Michigan, Ohio and Indiana.
Fill Out Repair/Shipping Document
D.C. Motor Repair Capabilities
We have documented 10,000 repair reports in our Database spanning across 50 different manufacturers
We repair A.C Motors, D.C. Motors, Servo Motors, Press Drives, Gearboxes, and Spindles
Capable of 24-hour repairs in many cases
We have thousands of spare and rebuilt motors in our inventory for parts or exchange motorsD.C. Motor Repair Procedures
-
Data
Motor nameplate data is recorded
-
Inspection
A visual inspection of any damage to the motor.
We check for- Damaged Leads/Terminals
- Worn output shaft/keyways
- Cracks in end bells or covers
- Cracks in bases/feet
-
Job Ticket
We complete to full write up off all motor data
Including- All winding tests (Resistance, Meg Ω, Continuity) on the armature and field windings
- All bearing sizes
- All seal sizes
- Feedback Tests (Tachometer/Encoder)
-
Motor Disassembly
- Bearing and seal sizes are recorded
- More winding tests are performed (Surge and HiPOT tests) on the armature and field windings
- Bar-to-Bar test is performed on the commutator
- Bearing fits are measured on shaft and End bell
- All brushes and holder sizes are recorded
- Brake torque is measured as well as resistance and Meg Ω
- Armature is then washed and baked in oven
- Field windings are washed and baked in oven
-
Assembly
- New bearings are installed
- New seals are installed
- If required, new armature windings are installed
- If required, new field windings are installed
- New brushes and brush holders are installed
- Commutator is undercut or replaced if necessary
- Brakes are rebuilt or replaced depending on manufacturer design.
-
Rotor Balancing and Testing
- Rotor is run through a full vibration diagnostic
-
Run Testing
- Every Motor is Run for a minimum of 1 hour using one of our drives.
- We use Siemens S110, S120, IndraDrive, AB Kinetix 300, Yaskawa 7, and AMC drives
-
Service Report
- A Final 3-page Service Report is filled out
- Pinout diagram for power and feedback is provided
- Brake torque is recorded a final time for our Service Reports
- A photo of nameplate and motor is attached
- A motor tag is installed on motor with QR code linking Service Report and Job Histories
- If requested, a YouTube link is attached to the service report of motor
