Custom Coils, Inc. is a premier US-based manufacturer and service provider specializing in the design, engineering, and production of custom electromagnetic components. Established in 1978 and headquartered in Benicia, California, the company has over 45 years of experience delivering high-performance solutions for critical applications. Their extensive product portfolio includes custom electromagnets, RF coil assemblies, inductors, chokes, solenoids, magnetorquers, and a wide variety of transformers, including high-voltage, switchmode, and toroidal types.
Operating as a single-source solution provider, Custom Coils supports the entire product lifecycle from initial design and material research to prototyping and full-scale production. The company is equipped to handle complex technical challenges, such as orthocyclic winding for maximum fill factor, thermal management for high-power applications, and the fabrication of coils in unusual shapes or close tolerances. They work with diverse conductor materials, including magnet wire, solid or hollow core copper, and aluminum, offering both air-core and bobbin-wound configurations with convection or water-cooling options.
Custom Coils serves a global client base across demanding industries, including medical (MRI/CT), semiconductor manufacturing, aerospace, military, quantum computing, and renewable energy. They are notably recognized for specialized services like ceramic bell jar dome refurbishment for the semiconductor industry. Committed to high quality and safety standards, the company maintains ISO 9001:2015 and ISO 13485 certifications, and their products are UL listed and RoHS compliant. With a dedicated team of 11 to 50 employees, they provide both small-run prototypes and large-volume production to meet specific client requirements.
Surface Mount Inductors
Ferrite Transformer
Step Up/Down Transformers
Custom Manufacturing
Trigger Pulse Transformers
Down Hole Applications
Ferrite Inductors
Isolation Transformer
Flyback Transformers
Control Transformers
Inverter Transformers
Amacoil, Inc.
🇺🇸 United States
195211-50 peopleDistributor/Manufacturer/Service Company
Established brand
Product customization
Shipments
9
Key customer
GATES
Key market
🇺🇸 United States
Description
Amacoil, Inc., founded in 1952 and headquartered in Aston, Pennsylvania, is a specialized manufacturer and value-added distributor of mechanical linear motion solutions. The company serves as the exclusive North American distributor for Joachim Uhing GmbH & Co. KG, providing expertise in rolling ring technology that converts rotary input into linear output on smooth, threadless shafts. Amacoil operates with a team of approximately 11 to 50 employees and generates an estimated annual revenue between $1 million and $4.9 million.
The company's core product portfolio includes RG Linear Drives for automatic reciprocating motion and RS Positioning Linear Drives for backlash-free indexing. Beyond individual drive units, Amacoil provides custom-engineered, machine-ready ARG and ARS assemblies, as well as Uhing AZ timing belt actuators. Their mechanical solutions are designed to simplify industrial applications by eliminating the need for complex electronic control systems and programming. These systems are widely utilized in machinery for winding, spooling, slitting, spraying, scanning, and metrology.
In addition to drive systems, Amacoil offers specialized clamping components such as EasyLock™ and U-Clip shaft collars. As a service-oriented provider, the company supports its hardware with comprehensive engineering resources, including CAD drawings, application consultation, and proprietary solution-planning software. They maintain a significant inventory to provide parts, repairs, and technical support to customers across the United States, Canada, and Mexico.