ABOUT CMI
Since 1966, we have remained dedicated to providing the combination of Design Services and Vertically Integrated Manufacturing of customized electro-mechanical assemblies. Composite Motors continues to meet the evolving needs of industry leaders for smaller, higher performing motion and control solutions subjected to harsh environments.
Our story spans decades of innovation and growth. While the years have brought many changes, from our name to the industries we serve, our mission has remained constant: to exceed customer expectations.
Mission Statement
We strive to be a preferred supplier in the design/manufacture of customized permanent magnet AC and DC brushless motor assemblies, controllers, and hermetic packaging of electronics.
Value Proposition
Our extensive in-house engineering and vertically integrated manufacturing capabilities provide customers with an end-to-end solution that integrates rapid response, cost containment, reliability, and quality control to meet critical time-to-market challenges.
Company History
From humble beginnings in a small Massachusetts tool and die shop to becoming a global leader in custom motors and controllers, our journey has been defined by innovation, adaptability, and a steadfast commitment to excellence. Each decade has marked a new chapter in our evolution, reflecting both technological progress and an enduring dedication to our customers.
- 1966: Our story began in Attleboro, Massachusetts, where we were founded as Joburn Tool.
- 1976: As our capabilities grew, we expanded to include the Composite Technical Alloys Division.
- 1981: We developed hermetically sealed enclosures utilizing patented material schemes.
- 1991: We acquired Cabot Electronics, broadening our portfolio with high-powered ceramic substrates and adopting the name Composite Technical Ceramics.
- 2000: Building on decades of expertise, we merged Composite Technical Ceramics and Composite Technical Alloys to form Composite Modules, Inc.
- 2001: The next chapter began with the founding of Composite Motors, Inc. and the relocation of our corporate headquarters to Brooksville, Florida.
- 2002: We had our first motor and driver shipment for high-powered surgical devices, establishing our reputation as a trusted partner in the medical device industry.
- 2006: To enhance our vertical integration and in-house capabilities, we acquired Sims Machine.
- 2007: Continuing our momentum, we developed our first over-molded brushless PMDC motor.
- 2021: With decades of growth behind us, we initiated a roadmap to consolidate all manufacturing within a single, advanced campus in Brooksville, Florida.
- 2025: This year marks the completion of our full facility consolidation in Brooksville, Florida, establishing a centralized, state-of-the-art manufacturing campus.
Vertically Integrated Manufacturing
Composite Motors is proud to say that all of our products are made right here on American soil, giving us a unique edge among competitors. Beyond producing and using mostly American-made components and parts, we also take pride in our commitment to exceed customer expectations. All of our clients have direct access to senior management and will find that our approach allows for flexibility in every project.
Composite Motors’ corporate office is located in Brooksville, Florida, with an additional seven buildings providing 250,000 square feet of manufacturing, engineering, and administration space.
Additionally, we have the ability to design and manufacture all tooling and fixturing in-house to support the following assemblies:
- Stators
- Rotors
- Magnet wire winding
- Gear box assembly
- Over Molding
- Hermetic packaging
- Printed circuit board assembly
Capability & Services
At Composite Motors, our vertically integrated operations bring engineering, manufacturing, and testing together under one roof. Our main capabilities include:
Hermetically Sealed Motor Controllers
CMI designs and manufactures DC motor controllers that provide exceptional performance and protection in harsh and demanding environments.
- Hermeticity/Leak Rate: 10⁻⁷ (MIL-STD 883, Method 1014, Modified)
- Nominal Voltage Range: 9.0-24.0 VDC
- Current Range: 20A-80A
- Cooling: Passively cooled
- Control Options: Sensored (trigger and motor halls) and sensorless
- Communication: Motor and host (battery or console)
Specialty Material Processing – Hermetic Packaging (Controllers)
Our advanced hermetic packaging capabilities ensure protection, performance, and longevity for electronics operating in extreme environments. We specialize in:
- Cladding
- Brazing
- Glass Seals
Electric Motors
CMI designs and manufactures permanent magnet brushless motors (AC and DC) that deliver high efficiency and performance in challenging environments.
- Designs: Frameless and enclosed configurations. Stator Inrunner and Outrunner Design.
- Size Range: 0.200″-16″ diameter
- Power Output: Up to 10 kW
- Features: Autoclavable, sensored and sensorless, IP68-rated, and suitable for high and low temperature extremes
- Accessories: Includes planetary gearboxes
Design and Development Software (Design and Development)
Our in-house engineering team leverages CAD software and simulation tools to support complete product development. Our capabilities include:
- Custom Controller Design: Material scheme for hermetic packages, PCBA layout and schematic design, firmware and software development, component selection
- Custom Motor Design Software: We use the following software when designing custom motor solutions for our customers:
- SolidWorks (CAD and FEA)
- Simulation: Siemens MotorSolve (IM, BLDC, DCM, SRM modules)
- CFD for Thermal Analysis
This software enables us to optimize mechanical, electrical, and thermal performance at every stage of design.
Target Markets
Composite Motors designs and manufactures precision motors, controllers, and electronic assemblies for a range of demanding industries, including:
- Medical Devices
- Industrial and Instrumentation
- Military and Aerospace (ITAR and DFARS)
Patents & Certifications
Patents
Because our company is focused on innovation, Composite Motors holds several U.S. and foreign patents, including:
Stator
- US 6,889,420 – Method for making a stator for an electric machine
Rotor
- US 7,608,963 – Crimped rotor for an electric brushless direct current motor
Winding
- US 8,028,396 – Automatic wire winding of inside brushless stator
- US 8,250,733 – Automatic winder for an inside brushless stator
Composite Materials
- US 6,538,356 – Electric machine using composite blade structure
- CA 2,351,812 – Electric machine using composite blade structure (Canada)
- EP 1168574 – Electric machine using composite blade structure (Europe)
- JP 4471538 – Electric machine using complex blade structure (Japan)
Certifications
Composite Motors operates an ISO 9001:2015-certified quality management system (QMS) to ensure the highest level of quality. Additionally, CMI has been audited by customers to ISO 13485.
Get in Touch
To learn more about our unique solutions, get in touch with one of our experts to find out how we can serve you.
