Robotics Motor Materials

⚠ Disclaimer: This section may contain incomplete, out of date, or inaccurate entries. It is AI-maintained on a best-effort basis. Do not rely on it as a sole source — verify claims independently using the source materials listed in individual entries.

Overview

Frameless and servo motors depend on stacked electrical-steel laminations, insulated winding wire and fabricated rotors and stators upstream of the magnet and bearing layers. This section profiles US-located lamination and wire suppliers on the OpenTree map. Several entries rely on directory and trade sources because company sites blocked or lacked detail, and each entry says so.

Companies

US-Based Makers

Company HQ Ownership / Stage Focus
Thomson Lamination Maple Shade, NJ Private Precision motor lamination stamping, rotors and stators
Laser Technologies Naperville, IL Private Laser-cut and stamped laminations; ISO 9001, ITAR, Nadcap
Tempel Chicago, IL (global network) Worthington Steel (NYSE: WS) Electrical steel motor and transformer laminations
Rea Magnet Wire Fort Wayne, IN Elektrisola company Magnet wire, copper and aluminum
MWS Wire Industries Oxnard, CA Elektrisola company Magnet wire and specialty alloy wire
Essex Solutions Fort Wayne, IN Not confirmed Magnet and winding wire; MagForceX innovation center (stub)

Notes

  • Windings, Inc. (custom motors, rotors and stators) and ASCO Sintering (powder-metal gears and carriers) are filed under Actuators.
  • Tempel lists manufacturing in China among its global sites, so the Chicago pin reflects US capability within a multinational network.

Entries

  • Essex Solutions (Essex Furukawa Magnet Wire) — STUB — Fort Wayne, IN magnet and winding wire maker (formerly Essex Furukawa) with a MagForceX innovation center; OpenTree pins Fort Wayne, Franklin IN and Franklin TN. Based on third-party and press sources.
  • Laser Technologies, Inc. — Naperville, IL laser-cut and stamped electrical-steel lamination maker with a 168,000 sq ft facility, 20 CNC lasers and ISO 9001:2015, ITAR and Nadcap credentials; describes itself as the largest electrical steel lamination laser cutter in North America.
  • MWS Wire Industries — Oxnard, CA magnet wire and specialty alloy wire maker (Multifilar, Twistite, Microsquare, litz, sensor and clad wire), an Elektrisola company; ISO 9001:2015 and ISO 13485:2016; over 50 years in business; marketed as Made in the USA.
  • Rea Magnet Wire — Fort Wayne, IN magnet wire producer (copper and aluminum), an Elektrisola company; serves transformers, motors and generators, EVs and automotive; OpenTree pins Fort Wayne and Lafayette IN, Guilford CT and Ashland VA.
  • Tempel (a Worthington Steel company) — Electrical-steel lamination maker for motors, generators and transformers, owned by Worthington Steel (NYSE: WS); founded in Chicago in 1945; manufacturing in the US and nine other countries including China; ISO 9001:2015, ISO 14001:2015, IATF and C-TPAT.
  • Thomson Lamination Company — Maple Shade, NJ precision motor lamination stamper founded 1964; carbide dies, stamping, annealing, rotors, stators and assembly for aerospace, medical, defense and robotics; 76,000 sq ft across six buildings (sponsored profile).