Siemens AC Motors Siemens DC Motors Siemens Spindle Motors
Siemens AC Servo Motor Repair
Siemens AC servo motors that arrive at our facility undergo a thorough evaluation to identify the cause of failure. The repair process will bring your broken down Siemens servo motor back up to factory specifications, just as if you bought a new one.
Most Siemens AC servo motors use encoders made by Heidenhain. Our strong relationship with Heidenhain means we have access to these parts as well as important technical documentation that can be critical to repairing a motor properly. Maintaining a large inventory of Heidenhain encoders means we don’t typically need to wait to order a new one for each job – it’s already on our shelf. When a certain encoder is not available, we can even go as far as modifying the rotor and endbell in order to use an encoder that is otherwise electrically compatible.
Older-style Siemens AC servo motors often have feedback hall sensors. While the manufacturer would deem a motor unrepairable due to broken hall sensor brackets, Servotech has reverse engineered and manufactured these brackets, allowing us to refurbish your servo motor when others cannot. This is just one example of how Servotech will go the extra mile to keep your motor up and running.
Siemens DC Servo Motor Repair
Although Siemens DC servo motors are no longer used in CNC equipment, there are plenty of them still in use today. Servotech takes pride in offering the absolute highest quality refurbishments on these motors to extend their life span and keep your machine up and running. When you send in your Siemens DC servo motor to us, you can expect it to look and function as if it were brand new once you get it back.
DC servo motors contain carbon brushes which wear down over time. While replacing the worn brushes may be a quick fix, there is still a build up of carbon contamination inside the motor. Our technicians thoroughly clean all the components of each DC servo motor to prevent this contamination from causing premature failure.
Servotech has all the needed skills and equipment to refurbish Siemens DC servo motors regardless of how it failed. We have the capability to rewind armatures and tachs, reverse-engineer outdated feedback devices, and fabricate parts in our machine shop. Our in-house services combined with an extensive inventory of hard to find parts means you can count on Servotech to properly refurbish your DC servo motor and keep your machine up and running.
Our Repair & Refurbishment Process
1. Checking In
- Motor is photographed and documented by our receiving department
- Unique job number is assigned
- Acknowledgement is sent via email
- Motor is delivered to the appropriate department to be evaluated
2. Evaluation
The evaluation of each Siemens servo motor is extremely thorough and is 100% free for all our customers. Our technicians fully inspect all mechanical and electrical parts. They also perform multiple tests to determine the cause of failure. This includes, but is not limited to:
- Bearing fits
- Housing fits
- Worn output shafts
- Corroded and/or broken flanges
- Burnt Stator Windings
- Failed Encoders
- Damaged Connectors
3. Quote
Our purchasing department then generates a firm quote, outlining the cause for failure, and listing all needed parts for repair. Our team excels in sourcing any parts that are not already stocked in our extensive inventory. We understand that getting your machine up and running is of utmost importance, and we go above and beyond to offer you the quickest delivery possible.
4. Servo Motor Repair
Once the quote is approved, orders are placed for any needed parts and our technicians proceed with repairs. Anything that requires our in-house services, such as winding or machine work, is taken to the corresponding department. When ready, the motor is re-assembled with all new parts and hardware, bringing it to good-as-new condition.
5. Final Testing
Upon completion of repairs, the Siemens servo motor heads to our quality control department for final testing. Here, we review the entire repair and run it on a factory specific drive. Using the same drive that is used in your machine ensures that your Siemens motor will run just as it should once re-installed. We take great pride in maintaining an inventory of factory drives as it allows us to offer the most effective, reliable refurbishment possible.
6. Painting & Re-Labeling
Not only does a fresh coat of paint make your Siemens servo motor look brand new, but it also provides protection from outside contaminants, extending the overall lifespan of the motor. Our painting department provides application-specific paint, such as:
- Food grade epoxy
- IP67 epoxy
- Marine epoxy
7. Return Shipping
Our shipping department takes pride in offering the highest quality care when preparing a refurbished motor for its journey back to you. Protective caps are put on connectors, nameplates are applied to the motor, and documentation is reviewed to make sure any accessories, such as eye bolts or shaft keys, are returned to you. Our high-quality spray foam packaging system creates a mold around the motor to keep it safe in the box during shipping. For larger motors that require freight shipping, we build a custom crate on-site to fit each motor’s unique size and shape..
- Bearing fits
- Housing fits
- Worn output shafts
- Corroded and/or broken flanges
