Humanoid robots look simple from the outside. Inside, they are a dense stack of machining, bearings, electronics, sensors, cables and thermal constraints. This breakdown shows why humanoid robotics is hard before the robot even starts walking. • CNC precision machining Used for rigid structures where tolerance matters Shoulder housings Waist joints Hip joints Knee housings Lower leg frames Foot structures A small alignment error can affect balance, actuator wear and repeatability. • Bearings Used across almost every rotating joint Shoulders Waist Hips Thigh actuators Knees Force sensor modules Crossed roller bearings are critical because humanoid joints carry radial, axial and moment loads during motion. • Injection molding Used for shells, covers, gloves and outer body parts. These components reduce weight, protect internal hardware and give the robot a clean exterior. • PCB electronics Used for the sensing and control layer RGB camera Depth camera Encoder boards Mission computer Sensor PCB Pressure sensor board This is where perception, feedback and low-level control begin. • Cable harnesses The hidden failure point. Cables pass through moving joints. They bend thousands of times. They must survive vibration, heat and repeated walking cycles. Key components shown here: • LiDAR • RGB camera • Depth camera • Mission computer • Shoulder actuator • Encoder • Electromagnetic brake • Upper arm rotary actuator • Robotic hand • Waist joint • Hip joint • Thigh actuator • Knee joint • 6-axis force sensor • Lower leg structure • Foot pressure sensor • Cable harness AI gets the attention. But the physical stack decides whether the robot can work for hours without broken joints, overheated electronics, loose cables or damaged sensors. Physical AI needs a physical supply chain.

ROBOTS DESIGN AROUND THE WORLD A look at 40 robot designs from industrial arms to humanoids. INDUSTRIAL ROBOT ARMS • 🇨🇭 ABB ➝ IRB Series ➝ Built by ABB for factory automation ➝ Known for welding, handling and assembly lines • 🇩🇪 KUKA ➝ KR CYBERTECH Series ➝ Built by KUKA for compact industrial workcells ➝ Used for handling, arc welding and machining tasks • 🇨🇭 STÄUBLI ➝ TX2 Series ➝ Built by Stäubli for high-speed precision work ➝ Strong in electronics, pharma and clean production • 🇯🇵 YASKAWA ➝ GP Series ➝ Built by Yaskawa Motoman for general handling ➝ Used where factories need speed and repeatability • 🇯🇵 NACHI ➝ CM Series ➝ Built by NACHI for industrial automation ➝ Known for compact arms and production reliability • 🇮🇹 COMAU ➝ Racer Series ➝ Built by Comau for fast industrial motion ➝ Used in automotive and high-volume manufacturing • 🇯🇵 FANUC ➝ ARC Series ➝ Built by FANUC for arc welding ➝ Recognized for yellow factory robots and rugged uptime • 🇯🇵 Mitsubishi Electric ➝ RV-FR Series ➝ Built by Mitsubishi Electric for flexible factory automation ➝ Used for assembly, inspection and machine tending COBOTS • 🇩🇰 Universal Robots ➝ UR10e Series ➝ Built by Universal Robots for human-side automation ➝ Popular because it is easy to deploy in small factories • 🇩🇪 Agile Robots ➝ Diana Series ➝ Built by Agile Robots for collaborative manipulation ➝ Designed for precise arm motion near people • 🇩🇪 NEURA Robotics ➝ Lara Series ➝ Built by NEURA Robotics for cognitive robotics ➝ Built for safer human robot collaboration • 🇯🇵 DENSO ➝ COBOTTA Series ➝ Built by DENSO for compact workbench automation ➝ Useful for labs, small parts and repetitive tasks • 🇯🇵 OMRON ➝ TM-RT Series ➝ Built by OMRON for collaborative factory work ➝ Focused on vision-guided handling and inspection • 🇨🇦 Kinova ➝ Gen3 ➝ Built by Kinova for lightweight robotic manipulation ➝ Used in research, assistive robotics and mobile platforms • 🇨🇳 DOBOT ➝ CR Series ➝ Built by DOBOT for affordable collaborative automation ➝ Made for pick and place, packing and small production lines • 🇰🇷 DOOSAN ➝ CRX Series ➝ Built by Doosan Robotics for industrial collaboration ➝ Known for strong cobot arms and clean design QUADRUPED ROBOTS • 🇪🇸 Keybotics ➝ Keyper ➝ Built by Keybotics for industrial inspection ➝ Designed to move through facilities where wheels struggle • 🇨🇳 Unitree ➝ B2 ➝ Built by Unitree for larger quadruped tasks ➝ Built for payload, speed and outdoor mobility • 🇺🇸 Boston Dynamics ➝ Spot ➝ Built by Boston Dynamics for inspection and mapping ➝ Famous for balance, terrain recovery and field use • 🇨🇭 ANYbotics ➝ ANYmal ➝ Built by ANYbotics for industrial inspection ➝ Used in energy sites, plants and rough environments • 🇨🇳 DeepRobotics ➝ X30 ➝ Built by DeepRobotics for industrial patrol and inspection ➝ Designed for outdoor terrain and harsh sites • 🇺🇸 Ghost Robotics ➝ Vision 60 ➝ Built by Ghost Robotics for rugged field mobility ➝ Used for defense, security and perimeter work • 🇨🇳 Unitree ➝ Go2 ➝ Built by Unitree for consumer and developer robotics ➝ Smaller, cheaper and more accessible than industrial quadrupeds • 🇨🇳 XPENG Robotics ➝ Robot Pony ➝ Built by XPENG Robotics as a smart mobility companion ➝ Blends quadruped movement with consumer robot design • 🇨🇳 Xiaomi ➝ CyberDog 2 ➝ Built by Xiaomi for consumer robotics research ➝ A compact robot dog focused on agility and interaction • 🇨🇳 Pudu Robotics ➝ Pudu D1 ➝ Built by Pudu Robotics for service robotics ➝ Shows how delivery robot companies are moving into legs • 🇨🇳 OPPO ➝ Qric ➝ Built by OPPO as a robotic dog concept ➝ Interesting because a smartphone company explored legged robots • 🇯🇵 Sony ➝ Aibo ➝ Built by Sony as a companion robot dog ➝ One of the clearest examples of emotional consumer robotics