To meet the growing demand for higher precision in harmonic reducers from customers in CNC, humanoid robots, medical equipment, and other application fields, HONPINE has established an ultra-fine grain R&D and production center. The center plans to adopt ultra-fine grain production technology to enhance the precision and rigidity of harmonic reducers.
1,Through ultra-fine grain heat treatment, an average grain size of ≤7μm can be achieved, reaching an ultra-fine grain level of 11–11.5 grade with superior organizational uniformity.
2,Material properties include a tensile strength of 1,500 MPa, yield strength of 1,425 MPa, yield ratio of 0.95, and strength-ductility balance >15,000.
The table below shows the tensile test results after heat treatment:
What Performance Can Be Achieved with Ultra-Fine Grain Technology?
Gear accuracy grade < DIN4, roundness < 0.003, dimensional error < 0.01

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We provide harmonic drive reducer,planetary reducer,robot joint motor,robot rotary actuators,RV gear reducer,robot end effector,dexterous robot hand