A California robotics startup has released promotional images of a two-meter-tall centaur-style robot designed for remote operation in hazardous environments, including wildfires, collapsed structures, and toxic zones.
The machine, named Threehalves and developed by Satyress Robotics of Auburn, California, combines a humanoid upper body with a four-legged base and features modular tool attachments.
According to the company’s website and recent reports, Threehalves is teleoperated and intended as a force multiplier for skilled workers rather than a replacement.
Images of the robot, which include a horned head with glowing eyes, circulated widely on social media platforms beginning around July 28, 2026, including a July 30 post by the account Valuetainment that described the design in detail.
Robot Design and Features
Satyress Robotics states on its website that “no job is worth” a human life, health, safety, or limbs, and positions its robots to give craftsmen, technicians, engineers, and operators “superpowers” in environments involving extreme heat, cold, darkness, or other physical risks.
The design draws on a centaur configuration for stability on rough terrain. The quadruped base uses friction-braked joints that consume no power when motionless and provide failsafes in the event of motor control loss. The humanoid torso and arms interface with tools built for humans through a quick-connect wrist system that supplies power and air.
Limbs and tools are assembled from three interchangeable parts, allowing field swaps of items such as chainsaws, drills, or screwdrivers in minutes and rapid replacement if damaged, according to a report from Gadget.
The horned head houses wide-angle cameras that provide views of limb and tool positions for redundancy if actuator encoders fail.
Size constraints note that Threehalves is substantially slowed when navigating a standard American 32-inch by 80-inch door and cannot turn around in a 42-inch-wide hallway or enter a door orthogonal to a hallway. Larger horns can be fitted to block passage through pedestrian doors. Two units can fit side by side in a crouched position in a pickup truck bed of 5 feet 6 inches or longer with the tailgate closed.
Image of threehalves superhumanoid general purpose robot by Stayress/web
Safety mechanisms emphasize physical failsafes. Fail-on air brakes and pin locks immobilize the robot if system air pressure is lost. Shared pressurized reservoirs in the chest plate and body can be pierced by a projectile or sharp instrument to stop the machine instantly.
Company Background
The company lists a copyright of 2025 and an email contact of info@satyress.com on its website. It invites businesses facing high injury rates or downtime to collaborate on solutions. Its X account, @satyressrobots, posted images of Threehalves as early as April 29, 2025, under the caption “Meet Threehalves,” and has described the project as part of an ongoing “robot building journey.”
Historical Precedents for Centaur Designs
The concept of a centaur robot has precedents in research. NASA examined a mobile dexterous humanoid called Centaur for planetary surface operations in a 2005 technical report, combining a wheeled platform with an anthropomorphic upper body for tool use and risk reduction during extravehicular activities.
The Italian Institute of Technology developed the Centauro robot under a European Commission-funded project that ran from 2015 to 2018. Unveiled in 2018 and detailed in an IEEE Spectrum article, that 1.5-meter, 93-kilogram platform featured a hybrid wheeled-legged quadruped base and anthropomorphic upper body for teleoperated disaster response in rough terrain, including tasks such as navigating debris and operating power tools. Earlier related work included the University of Bonn’s Momaro robot in the DARPA Robotics Challenge.
Commercial firefighting robots of other designs, including remote-controlled units with water sprays and thermal cameras, have been deployed in operational incidents. Additionally, quadruped platforms from other manufacturers are used for inspection in industrial settings.
Design Advantages and Reported Limitations
The modular, teleoperated approach allows skilled operators to apply existing tool knowledge from a safe distance while the machine absorbs environmental hazards. Design features such as the stable base and quick-swap tools support reconfiguration for varied tasks.
Reported limitations include restricted maneuverability in standard indoor spaces and the current absence of verified field performance data.
Threehalves remains in an early developmental stage. Multiple reports describe the circulating images as promotional designs. No public demonstrations of a fully operational unit, price, commercial release date, or OSHA compliance details have been announced. The company’s website continues to solicit mailing-list sign-ups for updates on the building process.
Company Name, Robot Name, and Design Symbolism
The company name Satyress is pronounced “say-ter-ess.”
A satyress is the female counterpart to a satyr in post-classical European art and mythology. Satyrs originated in Greek mythology as male nature spirits, typically depicted as part human and part goat (or horse in earlier Greek art), and associated with the god Dionysus. They were linked to wilderness, fertility, wine, music, and revelry.
The female form, satyress, was a later artistic invention rather than a figure from original Greek sources, as classical satyrs were exclusively male.
The robot’s name, Threehalves, has not been publicly explained by Satyress.
Provided by Dallas Express
