OpenMotor
Propulsion
Open Source High-Voltage electric motors for Drones, Aviation, Robotics and Propulsion.Designed for Mass Manufacturing.
Core Technology
Patented innovations driving high torque density and efficiency.
Scalable Power Architecture
Our modular design is fully scalable, covering a massive performance range from 1 kW to 1 MW. Whether for light drones or heavy industrial propulsion, the core technology delivers industry-leading torque density across all sizes.
Tangential magnet Polarization
Patented magnet array with polarization perpendicular to side walls concentrates flux, increasing field strength by 1.5x.
Flexible Winding Topology
Configurable single/double-layer winding with flexible series-parallel connections for wide KV adjustment.
High-Conductivity Ceramic Insulation
Ceramic insulation Al2O3 provides superior thermal conductivity (up to 25 W/m·K) directly from coil to stator.
Grain-Oriented and Non Oriented Steel
We utilize high-permeability Grain-Oriented (GO) or Non-Oriented steel (up to 1.9T saturation). This allows us to optimize the core for either maximum torque or high speed.
High-Efficiency Cooling System
Spring-loaded radiator segments maintain constant pressure on the stator, automatically compensating for thermal expansion gaps.
Rectangular wire Cross-Section
Rectangular wire cross-section increases slot fill factor to ~80%, reducing resistance and increasing current density and heat dissipation.
Open and Close ( IP65) motor construction
We provide motors in both Open (O) configurations for optimal weight and Closed (C) versions. Our closed designs are fully sealed to IP65 standards, offering robust protection against dust and water for industrial applications.
 motor construction.jpg)
Propulsion Matrix
Supports 50–800 V via flexible coil topology. Built for heavy-duty applications.
| Model | Continues power | Rotation speed | Thrust | Battery voltage | Motor Mass | |
|---|---|---|---|---|---|---|
| CIAG 125_25 | 3.7 kW | 4300 rpm | 21 kg | 18S 75V | 2 kg | |
| CIAG 125_30 | 4.5 kW | 1900 rpm | 36kg | 18S 75V | 2.2 kg | |
| CIAG 175_40 | 13 kW | 3100 rpm | 60 kg | 168S 705V | 5.5 kg |
* Performance varies by ESC timing and propeller selection.
Services & Collaboration
Flexible engineering solutions for your propulsion needs.
Open Hardware Source
Access our base designs. Download 3d models directly from our GitHub repository.
ACCESS REPOEngineering (NRE)
We adapt KV, Power,shaft interfaces, mounting points, and voltage optimization for your specific requirements.
PROJECT BASISPrototyping
We manufacture, assemble and test a Sample to validate performance specs before you scale.
ON REQUESTIntellectual Property Portfolio
Our portfolio of international patents and applications.
International Applications (PCT)
- PCT/IB2023/057129Filed July 12, 2023
- PCT/IB2025/058444Filed August 21, 2025
- PCT/IB2025/060049Filed October 6, 2025
Granted & Registered
- Slovenia26604Granted July 31, 2025
- ChinaZL 202390000194.8Granted May 2, 2025
- Germany21 2023 000 117Registered October 18, 2024
- France24 07270Granted July 11, 2025
- RussiaRU2016132908, WO2018030917A3, P39356505PCT
Pending Applications
- European Patent OfficeEP 4287460 A1Published December 6, 2023
- SpainESU202490013In examination
- Russia2025132537Filed November 21, 2025
- India202517116950Filed November 25, 2025