Integrated performance actuators, designed and manufactured in the US.
Partner→Physical AI is only as capable as the hardware that goes into it.
Actuators turn intelligence into motion. Today, they’re the bottleneck to innovation in robotics. Harmonic gearboxes carry heavy loads but respond slowly. Quasi-direct-drive designs respond fast but can’t carry heavy loads.
No current design does both.
Realizing what’s possible.
Innovation in motion technology is the key to unlocking the full potential of physical AI.
At Bimotal, we’re developing better actuators that balance efficiency, precision, strength, dexterity, and reliability through improved responsiveness and heat management.
To achieve improved responsiveness and heat management, we architect novel topologies; simultaneously optimizing across magnetics, gearboxes, power electronics, and embedded software.

Building actuators like chips.
Next-gen actuators demand semiconductor-grade engineering and manufacturing processes to drive forward an entire robotics industry. We’ve taken this approach and applied it to every actuator we develop.
Read our thesis→Building actuators like chips.
Chips are built at the scale of nanometers. Gears can benefit from similar levels of precision. Micron-level tolerances enable quieter operation at higher speeds. Combined with novel gearbox designs, those higher speeds deliver more torque and power with less copper.
By trading material for precision, better processes can improve performance without increasing cost.
Sub-micron surface finishing improves gear-mesh efficiency and increases reliability by a factor of two or more. A precision finishing process can cut an actuator’s total cost of ownership in half—significantly lowering a robot’s lifetime operating costs.
Sub-micron surface finishes reduce friction and wear, improving efficiency and reliability.
Measures manufactured gears against design specifications, closing the loop between design intent and manufactured parts.
Hardens gear surfaces to increase durability and torque capacity without increasing gear size.
Shapes gear teeth with micron-level precision for better contact, quieter operation, and greater reliability.
Examines metal microstructure to verify material quality and the results of heat treatment.
Performance by design.
Using our proprietary finite element code, to find the best designs for each job.
Than Bosch and Shimano traction drives. Up to 65 Nm/kg on our mid-drive.
A track record of innovation.
Our founding team has pioneered new motor and drivetrain architectures.
FIG. 3
FIGS. 3N–3Q
FIG. 2A


Made in the US.
Designed
Our process combines first-principles thinking with real world constraints. Proprietary algorithms and rapid iteration get new designs from sketch to prototype fast.
Tested
8 dynamometers continuously test our actuators across the entire performance envelope. Reliability you can count on.
Manufactured
Rotary and linear actuators built and assembled in house.
Bay Area based.
Located in one of the world’s leading robotics hubs, we’re strategically placed to close the loop between design, manufacturing, and our customers.


Backed by investors who bet on hardware
Integrated performance actuators, designed and manufactured in the US.
Partner→Physical AI is only as capable as the hardware that goes into it.
Actuators turn intelligence into motion. Today, they’re the bottleneck to innovation in robotics. Harmonic gearboxes carry heavy loads but respond slowly. Quasi-direct-drive designs respond fast but can’t carry heavy loads.
No current design does both.
Realizing what’s possible.
Innovation in motion technology is the key to unlocking the full potential of physical AI.
At Bimotal, we’re developing better actuators that balance efficiency, precision, strength, dexterity, and reliability through improved responsiveness and heat management.
To achieve improved responsiveness and heat management, we architect novel topologies; simultaneously optimizing across magnetics, gearboxes, power electronics, and embedded software.

Building actuators like chips.
Next-gen actuators demand semiconductor-grade engineering and manufacturing processes to drive forward an entire robotics industry. We’ve taken this approach and applied it to every actuator we develop.Read our thesis→
Chips are built at the scale of nanometers. Gears can benefit from similar levels of precision. Micron-level tolerances enable quieter operation at higher speeds. Combined with novel gearbox designs, those higher speeds deliver more torque and power with less copper.
By trading material for precision, better processes can improve performance without increasing cost.
Sub-micron surface finishing improves gear-mesh efficiency and increases reliability by a factor of two or more. A precision finishing process can cut an actuator’s total cost of ownership in half—significantly lowering a robot’s lifetime operating costs.

Isotropic Superfinishing
Sub-micron surface finishes reduce friction and wear, improving efficiency and reliability.

Gear Metrology
Measures manufactured gears against design specifications, closing the loop between design intent and manufactured parts.

Case Carburization
Hardens gear surfaces to increase durability and torque capacity without increasing gear size.

Precision Grinding
Shapes gear teeth with micron-level precision for better contact, quieter operation, and greater reliability.

Metallography
Examines metal microstructure to verify material quality and the results of heat treatment.
Performance by design.
Performance by design.
Using our proprietary finite element code, to find the best designs for each job.
Than Bosch and Shimano traction drives. Up to 65 Nm/kg on our mid-drive.
A track record of innovation.
Our founding team has pioneered new motor and drivetrain architectures.
FIG. 3
FIGS. 3N–3Q
FIG. 2A


Made in the US.
Designed
Our process combines first-principles thinking with real world constraints. Proprietary algorithms and rapid iteration get new designs from sketch to prototype fast.
Tested
8 dynamometers continuously test our actuators across the entire performance envelope. Reliability you can count on.
Manufactured
Rotary and linear actuators built and assembled in house.
Bay Area based.
Located in one of the world’s leading robotics hubs, we’re strategically placed to close the loop between design, manufacturing, and our customers.


Backed by investors who bet on hardware








