Robotic Arm Servo Motor 7.4V 20in Wire Reduction 1/345 PZD Robotics

Description

Product Overview

The PZD Robotics SO-ARM101 servo motor is engineered for high‑performance robotic applications where precision, durability, and ease of integration are paramount. Operating at a nominal 7.4V, the motor delivers a peak stall torque of 19.5kg·cm and a rated torque of 6.5kg·cm, providing ample power for medium‑size arm segments and payloads up to several kilograms. Its compact form factor—measuring just 2.32 x 2.28 x 1.5 inches and weighing 2.89 ounces—fits seamlessly into tight mechanical envelopes while maintaining excellent heat dissipation. The motor incorporates a 12‑bit magnetic encoding sensor that enables continuous 360° rotation with sub‑degree resolution, supporting multi‑turn large‑angle control for complex motion profiles. A 20‑inch flexible debugging wire is included, allowing rapid prototyping, signal tracing, and fault isolation without the need for additional cabling. The unit is compatible with popular STS3215‑type servos such as Feetech ST‑3215‑C001 and Waveshare ST3215, ensuring broad interoperability across existing robot platforms.

Usage

Designed for both educational and industrial environments, this servo motor excels in a variety of scenarios. In academic labs, students can quickly assemble articulated arms, test inverse kinematics algorithms, and explore sensor feedback loops using the one‑click calibration feature that centers the motor at any 360° position. In commercial settings, the motor’s robust torque curve and magnetic encoder make it ideal for pick‑and‑place robots, CNC head positioning, and automated inspection stations where repeatable accuracy is critical. The included debugging wire simplifies on‑site troubleshooting, allowing engineers to probe signal integrity and adjust parameters without disassembling the robot. Its TTL serial bus control supports daisy‑chaining of multiple servos on a single communication line, enabling scalable architectures for multi‑axis manipulators, humanoid robots, and collaborative cobots.

Why Choose Us

PZD Robotics stands behind every component with a commitment to quality and customer satisfaction. Each servo undergoes rigorous testing for torque consistency, temperature stability, and encoder accuracy before leaving the factory, guaranteeing that you receive a product that meets or exceeds industry standards. The magnetic encoding technology eliminates the need for mechanical potentiometers, reducing wear and extending service life while delivering precise positional feedback. Our one‑click calibration routine reduces setup time from minutes to seconds, allowing you to focus on development rather than hardware tuning. Additionally, we provide comprehensive technical documentation, firmware updates, and responsive after‑sales support to ensure seamless integration into your projects. When you choose the SO‑ARM101 servo, you gain a reliable, high‑performance actuator backed by a team that understands the demands of modern robotics.

Key Features

• High torque output of 19.5kg·cm at 7.4V for strong, reliable motion.
• 12‑bit magnetic encoder provides precise 360° continuous rotation without mechanical wear.
• 20‑inch flexible debugging wire simplifies testing, troubleshooting, and rapid prototyping.
• One‑click calibration enables instant centering at any position, speeding up setup and reducing errors.
• Dedicated technical support and firmware updates ensure long‑term reliability and performance.

FAQ

What voltage range does the servo support?

The motor is optimized for a 6V‑7.4V supply, delivering peak performance at 7.4V while still operating safely at 6V.

Can multiple servos be connected on the same bus?

Yes, the TTL serial bus allows daisy‑chaining of several servos, enabling coordinated control of multi‑axis robotic systems.

Is the magnetic encoder affected by external magnetic fields?

The encoder is shielded and calibrated to resist typical environmental magnetic interference, ensuring stable position feedback in most operating conditions.

How does the one‑click calibration work?

By sending a specific command to the servo, the internal controller automatically aligns the motor to its mechanical center, eliminating manual adjustments.

What warranty does PZD Robotics provide?

All units come with a one‑year limited warranty covering manufacturing defects, backed by responsive technical support.