Gasgoo Munich- Bethel Automotive Safety Systems Co., Ltd. showcased a range of products — including its electronic mechanical brake (EMB), hydraulic brake-by-wire system (WCBS), front-view intelligent driving integrated unit, and robot joint modules — at the 2026 World Manufacturing Convention that kicked off in Hefei, Anhui. The exhibit underscores the company's technological strides and business footprint in both automotive smart chassis and core robot components.
Tailored to the movement demands of different humanoid robot body parts, Bethel brought three types of joint modules: planetary, harmonic, and cycloidal. These cover applications ranging from small companion robots to the upper limbs, lower limbs, and torsos of humanoids.
Image source: Bethel
The planetary joint module features dual absolute encoders and a hollow integrated structure, supporting multiple control modes — including torque, speed, position, and force-position hybrid — to meet the full-body joint assembly needs of small companion robots. The harmonic joint module targets humanoid upper-limb applications, with tailored designs for motion precision, response speed, and control stability. Meanwhile, the cycloidal joint module is built for high-load scenarios such as lower limbs and torsos, further enhancing load-bearing and motion control capabilities.
In recent years, Bethel has leveraged its deep expertise in precision manufacturing, motion control, and supply chain management from the auto parts sector to push into core robot components. The company has rolled out precision transmission parts — including joint ball screws, micro roller screws, and planetary roller screws — while tackling core motor technologies and developing joint modules. This has gradually shaped a "screw-motor-joint module" product matrix.
Beyond core robot components, Bethel also brought its electronic mechanical brake (EMB) to the event, further demonstrating its technological depth and industrialization progress in automotive smart chassis. The first EMB project entered mass production in March, with 60,000 units delivered so far. Three additional mass-production programs are advancing steadily, accelerating EMB's rollout across more models.
