Linear Labs designs high‑torque electric motors for demanding industrial applications such as wind turbines, nuclear power, pumps, actuators, and defense systems. Its patented HET (Hunstable Electric Turbine) uses a four‑rotor permanent‑magnet architecture with a circumferential flux tunnel to deliver up to twice the torque density of conventional motors while eliminating gearboxes, reducing weight, and providing built‑in fault tolerance for continued operation after a phase loss. The compact, gearbox‑free design also improves efficiency by minimizing copper losses.
Funding
$17M raised to dateRaised to date based on public sources. This may differ from the amount the company actually raised and is based only on what is publicly available on the internet.


6OFPTIFounders
Product
Problem
Conventional industrial electric motors are bulky, heavy, and rely on gearboxes that add cost, weight, and additional points of failure. Their single-phase designs lack fault tolerance, so a loss of any phase shuts down the entire system. Moreover, traditional motor topologies have reached efficiency limits, contributing to the large share of global electricity consumption attributed to motor-driven equipment.
Solution
Linear Labs has developed the HET (Hunstable Electric Turbine), a patented circumferential flux architecture that integrates four rotors into a single permanent‑magnet machine. By combining axial and radial flux paths into a continuous circumferential flux tunnel, the HET delivers up to twice the torque density of legacy designs while reducing copper losses. The multi‑axis configuration provides inherent fault tolerance, allowing continued operation even if a phase is lost. This compact, high‑torque motor reduces overall system weight and eliminates the need for external gearboxes, improving reliability and overall efficiency for demanding industrial applications.
Target Audience
Primary customers are manufacturers of wind turbines, nuclear power equipment, high‑pressure pumps, actuators, and defense systems that require compact, high‑torque, and highly reliable electric drive solutions.
Features
- Patented four‑rotor permanent‑magnet architecture with circumferential flux tunnel for maximum torque per kilogram
- Dual axial and radial flux paths delivering up to 2× torque density compared to conventional radial‑flux motors
- Built‑in fault tolerance that maintains operation despite loss of a phase, reducing full‑system shutdown risk
- Compact, gearbox‑free design that lowers overall system weight and simplifies mechanical integration
- High efficiency achieved through minimized copper losses and optimized flux linkage across three simultaneous motor actions