Custom Specialty Electric Motors
Louis Allis has been serving industries with custom electric motors for over 100 years. We specialize in manufacturing custom three phase industrial electric motors for some of the most demanding applications worldwide. For over a century the industries of the world have turned to Louis Allis to manufacture electric motors for their most specialized applications. Louis Allis is certified for MIL-STD-2037 Navy Sealed System Windings meaning our marine and naval vessel motors and services meet and exceed the standards required by the US Navy.
Whether your need is AC Induction Motors, AC Wound Rotor Motors, AC Synchronous Motors, or DC Motors, there’s a reason why Louis Allis has always been the “First and Last Name in Electric Motors."
Motor types and applications include but aren't limited to:
- Ball Mill Motors
- Bow Thruster Motors
- Conveyor Motors
- Crusher Motors
- Dredge Motors
- ID Fan Motors
- Kiln Drive Motors
- Large DC Motors
- Pulverizer Motors
- Shredder Motors
- Vertical and Horizontal Pump Motors
- Winch and Hoist Motors
- High Torque Motors
- Compressor Motors
- Ventilation Motors
- Mixer Motors
- Press Motors
- High Speed Motors (>3600 RPM)
Specialty Motors Are Our Specialty
Large, custom motors drive many industrial applications or manufacturing process. Motors are designed and built for new applications or to match an existing application, such as a plant expansion. Many existing motors are older, underperforming, and no longer supported by their original manufacturer. For these motors, original specifications or engineering data may not be available to help understand how to repair or replace them. In either case, new or old, Louis Allis excels. We offer a full range of services backed by expert knowledge and craftsmanship you can trust for any motor application.
Rich History, Deep Experience
For over 100 years, the Louis Allis brand has been a global leader, with an installed base of over 2 million specialty motors worldwide, more than any other U.S. motor manufacturer. Today, we focus on unique, custom, and specialty motor applications, regardless of the complexity, that Original Equipment Manufacturers (OEM), other fabrication and repair shops, or motor manufacturers cannot support. We have produced over 2 million motors and more specialty motors than any other U.S. motor manufacturer.
Factory Recertification
Our Factory Recertification Program provides a quick, cost-effective alternative to a new motor or custom build. This is an excellent option when encountering an unexpected failure and needing a shorter lead time on a new build.
Suppose you need a spare motor, and budget is a significant factor. In that case, we can modify a surplus motor, mechanically or electrically, to make a “fit and function” backup to your existing motor.
We can also factory recertify your legacy motor to OEM specifications by replacing all internal components while utilizing the existing frame. All of our factory-recertified electric motors are backed by a one-year warranty.
Custom Motor Modifications and Spares
We can modify almost any part of a standard motor to fit a custom application. This is often the quickest and most cost-effective solution to get you up and running or reduce downtime. We can also produce spare parts for inventory to ensure you’re always ready for future events.
Legacy Motor Designs
We have a large catalog of engineering data and performance specifications for legacy motors. Many large motor manufacturers no longer support specialty motors they made in the past. We can help you; our design and engineering experience allows us to replicate a complete motor or single motor part – form fit and function. You do not have to replace an entire motor or redesign equipment and processes because of a critical failure to a legacy motor.
Fully Certified and Capable Facility
Located in Warrior, Alabama, our 84,000 ft2 manufacturing facility is certified to ISO 9001:2015, and we work to industry specifications and standards. Our complete motor machine shop with ancillary equipment required to manufacture and test large specialty motors. Our team of specialty electric motor experts has decades of experience - there’s nothing we have not seen before!
Reducing Downtime, Extending Life, and Preventing Loss
We offer field services for your electric motor repair or maintenance needs. Our factory-trained technicians are ready to provide technical assistance when you need it, wherever you are. We can perform service regardless of the original equipment manufacturer or severity of issue. If we cannot repair or maintain your motor in place, we can help remove it, bring it back to full performance at our facility, and then reinstall it with the shortest possible lead time. If you have an electric motor problem, talk to us, visit our facility, or have our field service team visit your site, and we can demonstrate the long-term benefits of partnering with Louis Allis.
Louis Allis has a wide range of manufacturing and engineering and design capabilities for any specialty electric motor. We are also able to modify stock electric motors for your specific use case.
- AC induction (Squirrel cage)
- Wound rotor
- Synchronous
- DC
- Vertical
- Design D (High slip)
- Multi-speed
- Shaker/vibratory duty
- Pancake style
- Crusher/pulverizer duty
- Drill rig motors
- Compressor duty
- Fan duty (High inertia)
- Centrifuge/extractor duty
- Mixer duty
- Nuclear applications
- Military motors (MIL-SPEC)
- Specialty three phase electric motors specifically designed to meet the needs of your application
- Low, medium, and high voltage specialty three phase motors up to 20,000 HP available
- Manufactured at Louis Allis’ ISO 9001:2015 certified facility in Warrior, Alabama
With more than 100 years of experience, Louis Allis has a valuable portfolio of legacy designs and projects at its disposal. Louis Allis utilizes these legacy designs to provide the following:
- Duplication of legacy Louis Allis motors and generators
- Modification of legacy machines
- Provision of data including performance information for legacy products
- Provision of spare parts information
Louis Allis can design and build a "Fit and Function" replacement for any large or specialty electric motor regardless of the original motor OEM.
- Reverse engineering services
- Providing on-site engineering to collect critical information required for building a "fit and function" replacement
- Opportunity to incorporate any design improvements or modifications when building replacement motors
A customer needed more horsepower in the same frame size as their original motor. They also needed a spare motor to match. Originally their motor was 450 HP, they needed to increase it to 600 HP.
Louis Allis was able to design a new motor with the horsepower they needed and the same size frame as the original motor. Louis Allis was also able to salvage their old motor as a spare. We were able to bump up the horsepower, save them downtime, and save them from having to purchase a second new motor.
Product Gallery
Quality Craftsmanship
Quality is our top priority for new electric motor manufacturing and electric motor repair at our ISO 9001:2015 certified facility. We live by the motto "Quality applied with Louis Allis pride".
Recertified Motors
Our Factory Recertification Program exists to help customers who need a quick solution to a problem that can’t wait for a custom build.
Full Service Shop
At Louis Allis we have the capability of repairing a variety of electric motors, regardless of manufacturer or severity of repair needed.
