Sumitomo Drive Technologies' Fine Cyclo A-Series (FC type) is a precision cycloidal reducer kit for motion control: zero mechanical backlash and <1 arcmin lost motion across 6 sizes, ratios 29-179:1, nominal torque 149-3,900 Nm, acceleration torque 335-7,610 Nm, momentary peak up to 24,000 Nm, input speed to 6,150 rpm and torsional stiffness to 1,100 Nm/arcmin; grease-filled with keyway/clamp/spline input options for robot joints and machine-tool rotary tables.
COMPONENT
PHYBOT's new-generation PhyArc quasi-direct-drive integrated cycloidal joint modules come in six sizes (47/68/78/95/102/150) with in-house torque motors, cycloidal reduction and dual encoders in a hollow-shaft design; peak torque 12-590 N.m, peak torque density up to 244 N.m/kg, repeatability better than 1 arc-minute, and inertia+damping compensation surviving over 5x instantaneous overload impacts; shipped with SDK, interface board and dev kits for humanoid and other robotics scenarios.
SPINEA (Slovakia, now part of Timken) is the global benchmark for trochoidal (cycloidal) precision reduction gears. TwinSpin integrates a high-precision reduction mechanism with a high-capacity radial-axial output bearing in one unit: zero backlash, lost motion under 1 arcmin, average transmission error +/-18 to +/-36 arcsec. The cylindrical-case T series spans TS 60-TS 300 (9 sizes) with ratios 33-191, rated torque 37-2,940 N-m, emergency-stop capacity up to 14,700 N-m, torsional stiffness to 680 N-m/arcmin and tilting stiffness to 3,500 N-m/arcmin at only 0.86-55.7 kg; the load mounts directly on the output flange without extra bearings. Used in robotics, machine tools, medical, defense and automation.
Huandong Technology, the robot-joint reducer arm of Shuanghuan Driveline, covers robots from 3 to 1000 kg payload. The SHPR-E precision cycloidal (RV) series' representative SHPR-20E offers a 57/56 ratio, 153 N.m output at 20 r/min, 412 N.m start-stop torque, 833 N.m peak torque, 1 arc.min backlash and 4.7 kg weight for industrial robot and automation joints.
