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Toroids

toroids

Our Toroidal Transformers, Toroidal Coils & Chokes are custom manufactured per your prints, drawings, procedures, specifications and parts lists.

Sag Harbor Industries has the capacity to produce toroidal transformers from 0.20” to 10.0”. We can also produce toroidal transformers in a wire range from 14 to 48 AWG. Some of our other services are:

  • Magnetic and Electrostatic Shielding
  • Progressive Winding Capabilities
  • Multi-filar Winding
  • Computer Controlled Processes for Repeatability and Accuracy

Quality Assurances

We place a premium on quality. Our custom cable harness and assembly production is in compliance with our ISO 9001:2015 certification. We maintain the absolute highest quality control measures to ensure customer satisfaction. Our self-auditing and inspection techniques are rigorous and thorough.

The products we make are completely proprietary. Our team undergoes training and certification programs to ensure expert craftsmanship. We strive for excellence in customer service and quality in product delivered.

Toroids Value Added Services

Value-added services are available per your requirements and at the customer’s request.

  • JIT/KanBan system options at our customer’s preference
  • RoHS compliance at your request
  • 24-hour response time when responding to feedback
  • The products we make are completely proprietary and never compromised
  • Personal and direct service with on-site communication
  • Teamwork between us and you, with superior performance being the goal
















At Sag Harbor Industries, we specialize in crafting custom toroidal transformers, toroidal coils, and chokes, designed to meet the exact specifications of industries ranging from medical to manufacturing. With wire sizes from 14 to 48 AWG and diameters from 0.20” to 10.0”, our toroidal solutions deliver precision and efficiency for demanding applications.

Toroidal Transformers in Industrial Applications

Toroidal transformers are prized for their compact, donut-shaped design, which minimizes magnetic flux leakage and boosts efficiency—up to 95% or higher compared to traditional laminated transformers. In manufacturing, they power machine tool control systems and rail equipment, ensuring reliable energy transfer with minimal heat and noise. The medical industry relies on them for devices like MRI machines and CAT scanners, where low electromagnetic interference (EMI) and quiet operation are critical for patient safety and equipment precision. Their lightweight and space-saving design also makes them ideal for aerospace applications, supporting high-frequency generation in aircraft systems.

Toroidal Coils for Precision and Efficiency

Toroidal coils, wound around a magnetic core, create a centralized energy field, making them perfect for low-frequency applications. In industrial settings, they’re used in pneumatic control systems, such as pressure transmitters and two-way valves, generating stable electrical signals for precise operations. The audio industry benefits from their low EMI, using them in amplifiers and headphone systems for clear sound output. Their ability to handle large inductances also makes them suitable for data processing and telecommunications, ensuring efficient signal transfer in wireless devices.

Toroidal Chokes for Noise Suppression

Toroidal chokes excel at reducing EMI in high-current environments. In switch-mode power supplies (SMPS) and industrial equipment, they filter out noise from inverters and motors, ensuring smooth current flow. Their high impedance over a wide frequency range makes them ideal for video signal lines and AC/DC power supplies, protecting sensitive electronics from interference.

Sag Harbor Industries delivers custom toroidal solutions with ISO 9001:2015-certified quality, proudly Made in the USA. Contact us to elevate your industrial applications with our expertly crafted toroids.
toroids

Made in America - Secure Your Supply Chain

Sag Harbor Industries is a conscientious manufacturer. As a quality first company, the workmanship of our products is just as important as its price. The quality of American made products is second to none. Our customers can be assured that not only are Sag Harbor Industries products Assembled in America, they are also Made In USA, and we wear that distinction proudly.

That’s The Sag Harbor Advantage

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Details of Sag Harbor Toroids

Coil Categories  
Electric Coils, Encapsulated Coils, Field Coils, Molded Coils, Self-Supported Coils, Solenoid Coils, Varnished Coils, Harsh Environment Coils, Air Coils
 
Terminations  
Soldered Lead Wires, Welded Lead Wires, DIN terminals, Tab Terminals, Crimped terminals, Stripped & tinned Magnet Wire
 
Wire Size   2AWG - 52AWG
 
Wire Materials   Copper, Brass, Aluminum, Copper Clad Aluminum, Copper Nichol Alloys, Copper Tin Alloys, Silver, Gold, Stainless Steel
 
Wire Insulation Materials   Polyurethane, Polyester, Polyesterimide, Polyimide and combinations of these
 
Coil Temperature Ratings   105⁰C - 240C⁰
 
Bobbin Materials   Nylon 6/6, Glass filled nylon 6/6, Glass Filled PBT, Glass Filled PET(Rynite), Glass Filled PPS (Ryton), Liquid Crystal Polymer, Thermosetting Polymer, Phenolic, Glass filled DAP
 
Coil Finish   Over-Molded, Transfer molded, Poured Epoxy, Baked varnish, Air-Cured Varnish, Epoxy-Glass Wrapped, Cotton-Varnish, Tape Wrapped
 
Molding Materials   Rynite®(PET), Ryton®, Zytel® (nylon), Farboset
 
Encapsulation Material   Various Epoxies
 
U.L. Insulation Systems   Class B, F, H
 
Yokes and Frames   C and D type Frames along with Custom Yokes