LZ6436 Lightweight 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 Precision + Low Backlash, Maximum Positioning Accuracy

Backlash ≤ 8 arcminutes, paired with a planetary gear transmission structure, ensures zero hysteresis and no backlash in joint motion, enabling precise replication of control commands and perfectly meeting the high-precision trajectory control requirements of collaborative robots and exoskeletons. The tolerances for critical mating surfaces (such as coaxiality and end-face runout) are controlled within the 0.03 mm range, ensuring exceptionally smooth transmission and effectively preventing operational stalling or loss of precision caused by geometric and positional errors.

High Torque Density + Lightweight, Suitable for Joint Space Constraints

The rated output torque is 26 Nm, and the emergency braking torque is 78 Nm. Meanwhile, the entire device weighs only 490 g, achieving a high torque density characterized by "small size and high torque." This significantly reduces the load-to-self-weight ratio of exoskeleton/robot joints, enhancing both device endurance and motion flexibility.

Compact structural design (outer diameter φ74, short axial dimension) perfectly fits the space constraints of small joint modules without occupying additional installation space.

Wide Operating Range + High Reliability, Maintenance-Free and Worry-free

Lifetime lubrication design eliminates the need for periodic oil changes, with a designed service life of ≥20,000 hours, significantly reducing equipment maintenance costs. This makes it particularly well-suited for applications involving long-term continuous operation, such as exoskeletons and industrial robots.

IP54 protection rating and a wide operating temperature range from -20°Cto 90°Cenable it to handle temperature and dust challenges in various environments, delivering maximum stability.

Operating noise ≤ 60 dB(A); low-noise operation does not affect the human-machine interaction experience, making it well-suited to meet the stringent low-noise requirements of medical and collaborative robots.

High Dynamic Response + Low Loss, High Drive Efficiency

Rated input speed:3000 rpm; maximum input speed: 6000 rpm. It is compatible with high-speed servo motors, offering fast dynamic response to meet the requirements of rapid start-stop and speed adjustment for joints.

The no-load torque at high speed is ≤0.1 Nm, and the no-load power loss is extremely low, effectively reducing the power consumption of joint drives and extending the device's battery life.

Strong Impact Resistance + High Load-Bearing Capacity—Joint Safety Guaranteed

An emergency braking torque of 3 times the rated torque (78 Nm) can withstand sudden load impacts on the joint, preventing damage to the gearbox caused by overload and enhancing the operational safety of the equipment.

It can withstand a radial force of 500 N and an axial force of 100 N, making it suitable for the complex loading conditions encountered in joint modules. It eliminates the need to add extra auxiliary support structures, simplifying the design.

Multiple Mounting Holes for Versatile Compatibility

The flange end is pre-equipped with multiple standard mounting holes (M3/M4/M6/M8), supporting various installation methods and enabling quick adaptation to joint installation requirements for a wide range of devices, including exoskeletons, collaborative robots, AGVs, and more—thereby reducing customers'design and adaptation costs.