Typical motors characteristic copper wrapped round metal, however ETM’s metal stator is wrapped across the outdoors of the low-resistance copper coil. | Supply: ETM
Electrical Torque Machines, or ETM, final week entered the robotics and superior actuator market with its transverse flux motor expertise. The corporate stated it’s providing its TFM expertise by way of a versatile partnership mannequin that permits OEMs to retain manufacturing management, shield margins, and speed up improvement timelines.
The robotics business faces converging pressures: aggressive efficiency targets, thermal administration constraints, provide chain volatility, and the necessity for product differentiation, in keeping with ETM. It stated its TFM technology addresses these challenges on the system degree, enabling producers to simplify mechanical designs, scale back prices, and obtain efficiency benchmarks beforehand requiring vital tradeoffs.
“The period of sacrificing thermal efficiency for torque density is over,” acknowledged Chuck Ensign, ETM president. “ETM supplies robotics corporations next-level actuation functionality whereas sustaining management of their product roadmap and manufacturing future.”
Based in 2007, ETM was acquired by Graco in 2020. The Flagstaff, Ariz.-based firm’s TFM expertise was initially utilized in high-volume, low-speed (HVLS) industrial followers. It now serves markets together with marine propulsion, material handling, and pumps and sprayers, with new functions constantly underneath improvement and launch.
TFM guarantees to chop motor measurement and manufacturing value
Whereas high-ratio actuators maximize torque-to-weight ratios, their inherent inefficiency creates vital thermal bottlenecks and reduces battery autonomy, asserted ETM. Various direct-drive architectures try to enhance effectivity however in the end fail to satisfy SWaP-C2 (measurement, weight, energy, value, and cooling) targets resulting from extreme motor sizing and manufacturing prices, it stated.
ETM stated TFM eliminates this trade-off by decoupling magnetic flux from electrical windings, enabling the torque density of high-ratio techniques with the effectivity and thermal reliability of low-ratio drives. The corporate claimed that its patented structure supplies as much as 10x higher torque density than standard motors.
As well as, ETM stated its TFM expertise has already been confirmed in demanding, high-volume industrial functions.
ETM has changed the “rat’s nest” of copper wiring on a standard motor with a easy, low-resistance round coil. | Supply: ETM
ETM licensing lets OEMs embrace motors in their very own platforms
TFM supplies robotics OEMs with another path to counting on exterior part suppliers, stated ETM. They will license its confirmed motor expertise and manufacture it inside their very own platforms reasonably than counting on exterior part suppliers.
Not like typical provider relationships, ETM stated its licensing mannequin permits companions to retain full manufacturing management and margin whereas leveraging validated structure—accelerating time-to-market and lowering technical threat. This allows OEMs to combine TFM expertise inside their very own designs, use current manufacturing infrastructure, and keep full management over proprietary platforms.
ETM stated its licensing mannequin “turns the long-elusive TFM expertise right into a aggressive benefit companions personal, not a commodity they purchase.”
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