FEETECH STS3046 Servo Motor

The ST-3046-C001 is a heavy-duty 7.4V 40kg 360-degree magnetic encoder single-shaft serial BUS servo built with a durable aluminum alloy case, high-precision steel gears, ball bearings, and a coreless motor. Measuring 40mm × 20mm × 43.05mm and weighing 89±1g, this servo features a 25T/OD5.9mm horn gear spline and plastic/POM horn types with no mechanical limit. Operating within a 6–7.4V voltage range, it delivers a peak stall torque of 40kg.cm, a rated torque of 13.3kg.cm, a no-load speed of 0.22sec/60°, and a stall current of 3.1A at 7.4V. Controlled via digital packets, it utilizes half-duplex asynchronous serial communication (38400bps–1Mbps, ID range 0–253), providing a continuous 360° running degree (0–4096 steps). For integrated smart automation, it offers comprehensive real-time telemetry feedback tracking load, position, speed, input voltage, and current.

Common use cases: Heavy-duty humanoid robot arm and shoulder joints requiring 40kg.cm torque with 360° magnetic encoder feedback, high-end RC car and crawler steering with serial BUS control, industrial automation end-effectors, competition robot actuators, and applications needing coreless motor responsiveness with full telemetry at 6–7.4V.