LZ9620 High-Rigidity Hollow-Shaft Planetary Joint Reducer

The core technology of the product lies in the harmonic integrated joint module, featuring a drive-control integrated design. The inner rotor structure enables hollow cabling, while diversified model options including 11, 14, 17, 20, 25, 32 and 40 series ensure flexible applications. With a compact and miniaturized profile and low power consumption, it adopts a pin-type brake mechanism that triggers mechanical locking instantly upon power loss, with an action time of less than 10ms.

The dual steel wheel design, integrating cross-roller bearings with steel wheels, reduces axial space occupation. By meshing two steel wheels with one flexspline, it mitigates stress from flexspline deformation, achieving smooth operation, high efficiency and positioning accuracy up to 20 arcseconds.

High-performance output,torque density

High torque and high responsiveness:The rated output torque reaches 32 N·m, with a peak torque of 70 N·m (for 10 seconds), easily handling heavy-load conditions in exoskeleton and collaborative robot joints, and featuring enhanced shock resistance.

Steady-speed performance:Rated speed 170 r/min, peak speed 200 r/min; speed fluctuation ≤ ±2%, torque fluctuation ≤ 5%. Joint movements are smooth and jerk-free, with precise trajectory control.

High-efficiency transmission: The reducer boasts an efficiency of ≥90%, reducing energy loss, significantly enhancing equipment endurance, and minimizing heat generation issue

High precision + long lifespan—more reliable for long-term use

Ultra-low backlash:The output-side backlash is ≤10 arcmin, delivering positioning accuracy that significantly exceeds the industry average. Paired with a reduction gearbox featuring an overall assembly precision rating of Class 7, this product ensures smooth joint motion with no hysteresis and no play, making it ideal for collaborative robots and medical equipment applications with stringent precision requirements.

Ultra-long service life:The target design life has been upgraded from 8,000 hours to 10,000 hours. Combined with grease lubrication and 20CrMoTi alloy steel gears that offer excellent wear resistance and fatigue strength, this product exhibits slow performance degradation over long-term operation, substantially reducing the total lifecycle maintenance costs of the equipment.

IP56 High Protection:With an IP56 protection rating, it effectively resists dust and splash water, making it suitable for challenging environments such as industrial sites and outdoor settings—maximum stability guaranteed.

Low Noise + Temperature Control, Enhanced Human-Machine Interaction

Silent operation: Noise level under no-load conditions ≤ 63 dB (at 45 cm), meeting the stringent low-noise requirements of collaborative robots and medical devices, and providing a more comfortable human-machine interaction experience.

Improve temperature control protection:Integrates an NTC temperature sensor; when the ambient temperature is 40°C, the temperature rise is ≤55°C. Paired with Class B insulation rating, this effectively prevents overheating damage and enhances equipment operational safety.

High Integration + Lightweight Design, Maximum Compatibility

Compact and lightweight design: The maximum external dimensions are only φ96 × 82 mm, with a weight of ≤1850 g. While delivering high performance, this design maintains a lightweight profile, significantly reducing the load-to-weight ratio of the joints and enhancing the device's motion flexibility.

Strong load-bearing capacity:At 30 mm from the output end, it can withstand a 500 N tensile force along the vertical axis, making it suitable for complex loading conditions in joint modules. There's no need to add extra auxiliary support structures, simplifying the design.

Highly compatible installation:Flange-type output end with anodized surface treatment, offering corrosion resistance and ease of installation. It can quickly meet the joint installation requirements of various devices such as exoskeletons, collaborative robots, and AGVs.

Safety and Stability—Industrial-Grade Reliability Assurance

Wide operating condition compatibility:Rated voltage 48V, natural cooling method, supports S1 continuous duty cycle, and enables long-term stable operation. Reinforced key components: Uses ≥N42SH high-strength Hall magnets (specification φ6x3, Hall distance 0.5–1mm), offering strong magnetic stability and precise, reliable signal feedback.