DC servo motor repair.

Expert Advanced Motion Controls Repairs by Potomac Electric.

Potomac Electric specializes in Advanced Motion Controls (AMC) servo drive repairs, offering reliable solutions for brush and brushless servo drives, servo amplifiers, QuickStart Systems, power supplies, shunt regulators, and custom servo solutions. We have over 20 years of experience working with AC and DC servo drives from AMC, having successfully repaired hundreds of units.

As a small business, we understand the challenges and costs of maintaining industrial machinery. If you need a repair or have questions, visit our Inquiry and Quotes page—we’re happy to help.

Looking for replacement parts? Many AMC servo drives are available in our Parts Inventory.  Contact us to check availability, especially if you have small-lot production needs.

Expert Baldor Servo Motor Repairs, Refurbishments, and Replacements

Baldor Electric is a leader in the design and manufacture of AC and DC servo motors, servo drives, linear motors, and multi-axis motion controllers. Baldor Electric products are widely used in medical equipment, military, paper and packaging, machinery manufacturing, and semiconductor manufacturing applications worldwide.

With over 20 years of experience, Potomac Electric specializes in repairing Baldor DC and AC servo motors, servo drives, and servo controllers. Our team has successfully repaired hundreds of brush and brushless Baldor servomotors, servo drives, and servo controllers, ensuring top performance and reliability. Baldor products are found in General Motors, Sara Lee, Thermwood, Boeing, GE, Anilam, and other automation equipment: CD, CDP, and MTE series DC brush motors; TSM series servo drives; TSN/M2B series DC servo drives; UM series DC servo controllers; TSD series pwm servo drives; and DBSC series AC brushless inverters. Potomac Electric has designed and manufactured direct replacements for some of the said models. We pride ourselves on quality repairs, replacements, and customer service. When you need reliable repairs for Baldor, Westamp, Glentek, EG & G Torque (CMC), Servodynamics, and other servo motors and drives, call us. Our experienced team ensures top-quality service and quick turnaround times.

We understand the difficulty and cost of maintaining the machinery. Please drop us a note on our Inquiry and Quotes page with any questions.

Many of the Baldor servo motors and drives may be in our Parts Inventory, so contact us with any inquiries for small lot production.

Potomac Repair Services offers 20 years of expertise in servo motor and servo drive repairs for Bridgeport milling machines. We also manufacture and design Form, Fit, and Function replacement parts.

Contact us! We may have already solved your problem!

Potomac Electric is the industry leader in manufacturing replacement servo motors for Bridgeport CNC milling machines. Potomac Electric has developed compact, high-energy replacement servo motors for Bridgeport (now Hardinge) machines. Made in the US, they feature a durable silver commutator for superior performance. DC servo motors and servo drives have continued to be the workhorse of the CNC industry. This is why Potomac Electric has invested in designing a new line of DC servo motors to support industry needs. Potomac Electric's excellent technical support and experienced engineers will ensure that every customer will benefit from upgrading to Potomac Electric servo motors.

Among the servo motors you find on your Bridgeport CNC milling machines and machining centers are motors from companies such as SEM, CMC Torque Systems, Powertron, Contraves, and a few others. Potomac Electric makes replacement servo motors for all of the brands.

In the 1990s, the majority of machine manufacturers shifted from brushed servo motors to brushless servo motors as the cost of brushless technology had decreased. The higher speeds and absence of brush maintenance in brushless servo motors offered favorable advantages. As DC brush-type servo motors became less attractive, machine builders slowly phased out this technology. As a result, the price and delivery of the DC brush servo motors increased dramatically. Potomac Electric has set a goal to fill such a void in the machine tool industry with high-quality DC brush servo motors at a low cost.

The list of servo motors we support is constantly growing as we identify the needs of our customers. We are a small business and we understand the difficulty and cost of maintaining machinery. Feel free to reach out with any questions through our Inquiry and Quotes.

Many of the servomotors listed above are in stock and waiting for your order, so please call for details at (617) 364-0400. Servomotor models that do not appear in this list may be in our Parts Inventory, so contact us with any inquiries for small lot production.

Expert CMC Torque Systems Servo motor and Drive Repairs

For over 20 years, Potomac Electric has specialized in repairing CMC Torque Systems servo motors and drives. We have successfully repaired hundreds of brush and brushless servo motors and drives, ensuring reliable performance and extended equipment life.

We also design and manufacture Form, Fit, and Function replacement solutions, helping you save on machine maintenance and avoid expensive retrofits.

Below are some of the CMC Torque Systems servo motor and drive series we have serviced.

Need CMC Torque System servo motor repairs or replacements? Contact us through our Inquiry and Quotes page.

CMC Torque Systems Servo Motors and Drives in Stock

We may have CMC Torque Systems servo motors and drives in our Parts Inventory. Contact us for inquiries about small-lot production—we’re ready to assist!

Expert Custom Servo Motors (MTS Automation) Servo Motor Repairs

Potomac Repair Services specializes in the repair of Custom Servo Motors (MTS Automation) servo motors and servo drives. Now part of Parker Hannifin’s Automation Group, CSM (Custom Servo Motors of MTS Automation) is renowned in the automation industry for their innovative brushless motors, analog and digital drives,digital and servo controllers, and linear motors.

With over 20 years of experience, Potomac Electric has repaired and refurbished hundreds of AC and DC CSM servo motors, drives, and spindles. Additionally, we design and manufacture Form, Fit, and Function replacements, helping you save on machine maintenance and avoid costly retrofits.

Need CSM or MTS Automation servo motor repairs or replacements? Contact us through our Inquiry and Quotes page.

Many CSM servo motors and drives are available in our Parts Inventory. Reach out to us for any inquiries about small lot production.

Expert EG&G Torque Systems Servo Motor and Drive Repairs.

Potomac Electric Repair Services has been a trusted provider of EG&G Torque Systems servomotor and drive repairs for many years, delivering reliable solutions to keep your machinery running efficiently.

With over 20 years of experience, Potomac Electric has repaired hundreds of brush and brushless EG&G Torque Systems servo motors and drives. Some of the EG&G Torque Systems series we have repaired are listed below:

In addition to repair services, we also:

• Design and manufacture Form, Fit, and Function replacement motors, helping businesses reduce maintenance costs and avoid expensive retrofits.
• Continuously expand our servo motor repair capabilities to meet the evolving needs of our customers.

Need EG&G Torque Systmes servo motor repairs or replacements? Contact us through our Inquiry and Quotes page.

Looking for EG&G Torque Systems servomotors or drives? Many of these components may be available in our Parts Inventory.

Expert ElectroCraft Servo Motor and Drive Repairs

Potomac Electric Repair Services has been a trusted provider of ElectroCraft servomotor and drive repairs for many years, helping businesses maintain reliable motion control systems.

ElectroCraft is a leading manufacturer of brushless and brush servo motors, linear actuators, stepper motors, AC motors, gearmotors, servo drives,and other motion control products. Their solutions are widely used in industries such as medical, semiconductor, aerospace, machine tools, packaging, robotics, pick-and-place systems, dispensing, and office automation.

With over 20 years of experience, Potomac Electric has repaired hundreds of ElectroCraft AC and DC servomotors and amplifiers, including both brush and brushless servo motors and drives. Our expertise also includes:

• Providing 2", 3", and 4" Form, Fit, and Function DC servomotor replacements to ensure seamless integration and cost savings.
• Designing and manufacturing custom replacement motors, reducing machine maintenance expenses and eliminating costly retrofits.

Need Electrocraft servo motor repairs or replacements? Contact us through our Inquiry and Quotes page.

Looking for ElectroCraft servomotors or drives? Many of these components may be available in our Parts Inventory.

Expert Fanuc Servo Motor and Drive Repairs. 

Potomac Electric Repair Services specializes in repairing Fanuc servo motors, drives, and spindles. We also design and manufacture Form, Fit, and Function replacements, helping to significantly reduce machine maintenance costs and avoid expensive retrofits.

Fanuc is a leading supplier of machine tool control systems, including servo drives, servo controllers, servo motors, spindle motors and drives, PLC and motion control systems, HMIs, process solutions, and embedded systems. Fanuc's extensive range of high-quality products is utilized globally in industries such as communication, power and energy, military and aerospace, food and beverage, medical, and machine tool applications.

With over 20 years of experience supporting Fanuc spindles, brush and brushless servo motors and drives, Potomac Electric has repaired and refurbished hundreds of AC and DC Fanuc servo motors and spindles. We also support legacy Fanuc servo drives.

Need Fanuc servo motor repairs or replacements? Contact us through our Inquiry and Quotes page.

Many Fanuc servo motors and drives are available in our Parts Inventory. Contact us for inquiries regarding small lot production.

Expert GE Fanuc Servo Motor and Drive Repairs

GE Fanuc is a leading provider of machine tool control systems, including servo drives, servo controllers, spindle motors, PLCs, motion control systems, HMIs, and embedded solutions. These high-quality products are essential in industries such as aerospace, power and energy, medical, food and beverage, military, and precision machining.

With over 20 years of experience, Potomac Electric has expertly repaired and refurbished hundreds of AC and DC GE Fanuc servo motors, drives, and spindles—ensuring optimal performance and longevity for your equipment.

Beyond repairs, we design and manufacture Form, Fit, and Function GE Fanuc servo motor replacements, providing a cost-effective alternative to expensive retrofits and machine downtime.

Need GE Fanuc servo motor repairs or replacements? Contact us through our Inquiry and Quotes page.

Looking for specific GE Fanuc servo motors or drives? Check our Parts Inventory or contact us directly for availability.

Expert Gettys Servo Motor, Stepper Motor, and Drive Repairs

Gettys (formerly Gould, now Elmwood) is a leading manufacturer of stepper motors, servo motors, and AC/DC servo systems. Their high-performance products are widely used in automotive, packaging, food preparation, and machine tool industries worldwide.

With over 20 years of experience, Potomac Electric has repaired and refurbished hundreds of Gettys AC and DC servo motors, drives, and stepper motors, ensuring long-lasting performance. We also offer Form, Fit, and Function replacements and retrofits for aging DC servo motor-drive systems, helping businesses reduce maintenance costs and avoid expensive retrofits.

Need Gettys servo motor repairs or replacements? Contact us through our Inquiry and Quotes page.

Looking for specific Gettys servo motors or drives? Check our Parts Inventory or contact us directly for availability.

Potomac Repair Services offers 20 years of experience in servo motor and servo drive repairs for Haas Automation machines and designs and manufactures Form, Fit, and Function replacement parts.

Contact us! We may have already solved your problem!

Potomac Electric is the industry leader in manufacturing replacement servomotors for HAAS CNC machining centers. Working on HAAS servo motors for many years, Potomac Electric has developed new high-energy replacement servo motors. Engineered and manufactured in the USA, these new servo motors feature compact size and a new high-quality silver commutator.

We also repair and refurbish any HAAS rotary table.

DC servo motors and servo drives have long been the backbone of the CNC industry, delivering precision and reliability. Potomac Electric is proud to introduce its latest line of advanced DC servo motors, specifically designed to meet the evolving demands of the CNC industry. With top-tier technical support and a team of experienced engineers, Potomac Electric ensures that every upgrade to its cutting-edge servo motors provides maximum performance and customer satisfaction.

The list of servo motors we support is constantly growing as we identify the needs of our customers. We are a small business and we understand the difficulty and cost of maintaining the machinery. Contact us through our Inquiry and Quotes page with any questions.

Many of the servomotors listed above are in stock and waiting for your order, so please call for details at (617) 364-0400. Servomotor models that do not appear in this list may be available in our Parts Inventory, so contact us if you have any small-lot production needs.

Potomac Repair Services brings 20 years of expertise in repairing servo motors and drives for Hurco machines. Additionally, we design and manufacture Form, Fit, and Function replacement parts.

Contact us! We may have already solved your problem!

Potomac Electric has manufactured replacement servo motors for Hurco machines for more than 10 years. Over the last few years, Potomac Electric has developed a new line of servo motors featuring compact size, high-quality encoders, and a silver commutator. This new generation of motors provides state-of-the-art design features that ensure that customers will benefit from upgrading to new Potomac Electric servomotors.

We also repair many motors that have been used in Hurco CNC mills and CNC lathes. The two largest servo motor manufacturers that we support are Baldor and ElectroCraft. We can ship a new replacement or repair your servo motor quickly to get your machine up and running. We can also supply a Yaskawa servo drive, SGDH-10AE. This servo drive is brand new, has been thoroughly tested, and has the proper parameters for Hurco CNC machines.

In the 1990s, the majority of machine manufacturers shifted from brushed servo motors to brushless servo motors as the cost of the technology had come down. The higher speeds and absence of brush maintenance in the brushless servo motors offered favorable advantages. As DC brush-type servo motors became less attractive, machine builders slowly phased out this technology. As a result, the price and delivery of these servo motors increased dramatically. Potomac Electric has set a goal to fill such a void in the machine tool industry with high-quality DC brush servo motors at a low cost.

The list of servo motors we support is constantly growing as we identify the needs of our customers. We are a small business and we understand the difficulty and cost of maintaining the machinery. Contact us through our Inquiry and Quotes page for pricing and delivery information.

Many of the servomotors listed above are in stock and waiting for your order, so please call for details at (617) 364-0400. Servo motor models that do not appear in this list may be available in our Parts Inventory, so contact us if you have any small-lot production needs.

Expert Repair and Replacement Solutions for Industrial Drives Servo Motors and BDS4 Drives

Industrial Drives was originally part of the Kollmorgen Corporation, now simply known as Kollmorgen. Today, Kollmorgen’s advanced servo motors, stepper motors, drives,automation platforms, AGV control systems, and power transmission solutions are part of Regal Rexnord, a global leader in motion control and power transmission technology. Kollmorgen’s products are widely used in industries such as semiconductor manufacturing, medical devices, defense and aerospace, material handling, robotics, machine tools, power conversion, electronic assembly, alternative energy, and hybrid vehicles.

Over 20 Years of Kollmorgen Servo Motor Repair & Manufacturing Expertise

At Potomac Electric, we specialize in repairing, rewinding, magnetizing,and assembling Kollmorgen AC and DC servo motors and drives. With over two decades of experience, we have repaired hundreds of Kollmorgen AC and DC servo motors and drives, ensuring peak performance and reliability. Our expertise extends to large Torque Ring Magnets, commonly known as Torquers. The images on this page illustrate the complete rebuilding process of a 13-inch diameter servo motor.

Form, Fit, and Function Replacement Motors

Beyond expert repairs, we design and manufacture custom Form, Fit, and Function replacement motors. This cost-effective solution helps businesses avoid expensive retrofits and reduces machine downtime.

Extensive Kollmorgen Parts Inventory

We may also have Kollmorgen servo motors and drives in stock—reach out to check our Parts Inventory for immediate solutions.

We continuously expand our servo motor repair and replacement services to meet the needs of our customers.

Need Kollmorgen servo motor repairs or replacements? Contact us through our Inquiry and Quotes page.

Expert Inland Motor Servo Motor Repairs

Potomac Electric Repair Services has been a trusted provider of Inland Motor servo motor repairs for many years, delivering expert solutions for industrial automation and motion control systems.

Inland Motor is now part of Kollmorgen’s motion control product line, which includes a comprehensive range of motors, drives, and automation platforms. As now part of Regal Rexnord, Kollmorgen has been a leader in manufacturing high-performance AC and DC servo motors, adjustable speed drives, stepper motors,and OEM/custom control systems for over 50 years. Their products are widely used in semiconductor, medical, defense and aerospace, material handling, robotics, machine tools, power conversion, electronic assembly, alternative energy, and hybrid vehicle applications worldwide.

With over 20 years of experience, Potomac Electric has repaired and refurbished hundreds of Inland and Kollmorgen AC motors, brush and brushless servo motors and drives. We have also developed specialized expertise in rewinding, magnetizing, and assembling large Torque Ring Magnets—commonly known as Torquers. The images to the left showcase our complete rebuilding process for a 13-inch diameter motor.

Need Inland servo motor repairs or replacements? Contact us through our Inquiry and Quotes page.

Looking for specific Inland Motor servo motors or drives? Check our Parts Inventory or contact us directly for small-lot production needs.

Expert MCG Servo Motor Repair and Replacement Solutions

For over 20 years, Potomac Electric has specialized in repairing and servicing brush and brushless MCG servo motors. We have successfully repaired hundreds of MCG servo motors, ensuring reliable performance and extended lifespan.

Since Ametek acquired MCG and discontinued many of its servo motor models, we provide a wide range of high-quality replacement solutions to meet your needs:

Custom MCG and Ametek Replacement Solutions

In addition to repairs, we design and manufacture Form, Fit, and Function replacements for MCG and Ametek servo motors. These solutions help you avoid costly retrofits while keeping your machines running efficiently.

Need MCG or Ametek servo motor repairs or replacements? Contact us through our Inquiry and Quotes page.

Looking for specific MCG or Ametek parts? Many Axcelis servo motors and drives may be available in our Parts Inventory—reach out for small-lot production needs.

Expert Multicam Servo Motor Repair, Retrofit, and Replacements

Potomac Electric is the industry leader in manufacturing drop-in replacement servo motors for Multicam plasma cutting and CNC router machines. Our new generation of BMC3500 and BMC3501 AC brushless motors features improved seal bearings and higher torque, resulting in longer motor life. These motors are designed to replace MCG's servomotors used in Multicam machines over the past decade. With a matched mechanical interface, speed and torque output, windings, and connections, they ensure a seamless replacement process.

Direct Replacement for Multicam Servomotors

Cost-Effective Replacement Solutions

We also design and manufacture Form, Fit, and Function replacement parts to provide cost-effective alternatives for obsolete or high-cost Multicam components. 

Need a repair, retrofit, or replacement? Contact us through our our Inquiry and Quotes page for expert assistance.

Expert Ormec Servo Motor and Servo Drive Repairs

Ormec Systems Corp. (now part of Allient Inc.) is a leading provider of high-performance motion control systems, offering motion controllers, servo drives, servo motors, gearboxes, actuators, HMIs, I/O modules, pace encoders, and software. Ormec’s turnkey motion solutions are widely used in packaging, machine tools, metal forming, food and beverage, medical, and plastics applications worldwide.

Reliable Ormec Servo Motor and Drive Repair Services

At Potomac Electric, we have over 20 years of experience repairing and refurbishing:

✔ Ormec spindles
✔ Brush and brushless Ormec servo motors
✔ Ormec AC and DC drives
✔ Ormec servo controllers

In addition, Potomac Electric provides replacement solutions for servo motors and older generations of Ormec-provided Westamp drives.

Need a repair or replacement? Contact us through our Inquiry and Quotes page.

Looking for Ormec servo motors or drives? We may have them in our Parts Inventory—reach out for availability.

Expert Pacific Scientific Servo Motor and Servo Drive Repairs

Pacific Scientific (also known as PacSci) was a leading manufacturer of high-performance stepper motors, servo motors, and servo drives for over 40 years. Although these products have been discontinued, Pacific Scientific motors and drives are still widely used in medical, semiconductor, robotics, packaging, inspection, and assembly applications worldwide.

Reliable Pacific Scientific Servo Motor and Drive Repair Services

At Potomac Electric, we have over 20 years of experience repairing and refurbishing:

✔ Pacific Scientific stepper motors
✔ Brush and brushless PacSci servo motors
✔ PacSci AC and DC servo drives

Our expert repair services help businesses extend the life of their PacSci equipment, reducing downtime and avoiding costly replacements.

Custom Form, Fit, and Function Replacement Solutions

In addition to repairs, we design and manufacture Form, Fit, and Function replacements for obsolete Pacific Scientific motors and drives. These solutions provide a cost-effective alternative to expensive retrofits, keeping your machines running smoothly.

Need a repair or replacement? Contact us through our Inquiry and Quotes page.

Looking for Pacific Scientific servo motors or drives? We may have them in our Parts Inventory—reach out for availability.