Han's Robot Echo and HY 7-Axis Arms Review: Specs and Uses of the 7-Axis Humanoid Arms
Updated: 7 days ago
Han's Robot's Echo and HY arms are 7-axis lightweight arms built for humanoid robots and embodied AI platforms. The manufacturer does not publish a price. This review covers its specifications, features and uses.
Quick Verdict
Six models come in two kinematic styles: Echo with coplanar cross axes and HY with spatial cross axes. Payloads run from 3 to 15 kg and reach from 555 to 850 mm, with arm weights under 8, 12 or 22 kg. Every joint has a torque sensor for full force control, cables route through a large hollow, and two wrist configurations are offered. An open SDK, native ROS2 and open protocols target developers, and noise stays at or below 45 dB.
Han's Robot Echo and HY 7-Axis Arms at a Glance
Axes: 7
Payload range: 3 to 15 kg
Reach range: 555 to 850 mm
Force sensing: Torque sensors in all joints
Software: SDK, native ROS2
Price: on request
Han's Robot Echo and HY 7-Axis Arms Technical Specifications
The table below lists what the manufacturer states.
Model | Payload | Reach | Repeatability | Weight | Configuration |
Echo 3 | 3 kg | 555 mm | ±0.02 mm | <8 kg | Coplanar cross-axis |
Echo 5 | 5 kg | 605 mm | ±0.03 mm | <12 kg | Coplanar cross-axis |
Echo 15 | 15 kg | 850 mm | ±0.05 mm | <22 kg | Coplanar cross-axis |
HY 3 | 3.5 kg | 625 mm | ±0.02 mm | <8 kg | Spatial cross-axis |
HY 7 | 7 kg | 670 mm | ±0.03 mm | <12 kg | Spatial cross-axis |
HY 15 | 15 kg | 850 mm | ±0.05 mm | <22 kg | Spatial cross-axis |
Design and Build Quality
Lightweight arms with large hollow joints for internal cabling and two wrist configurations.
Software and Integration
Open Ecosystem
SDK, native ROS2 and open protocols.
Full-Joint Force Control
Torque sensors in every joint.
Han's Robot Echo and HY 7-Axis Arms Applications and Use Cases
Humanoid Robots
Arms for upper-body platforms.
Embodied AI Research
ROS2-based development.
Dexterous Tasks
7-axis redundancy for complex motion.
Han's Robot Echo and HY 7-Axis Arms Price and Value
Han's Robot does not publish a price for the Han's Robot Echo and HY 7-Axis Arms; it is quoted on request.
For the company behind the product, read the Han's Robot (Huayan Robotics) Company Profile: History, Products and Hong Kong Listing.
Pros and Cons
Pros
Seven axes
Full torque sensing
Light weight
ROS2 native
Cons
Short reach
Price on request
No published price
Who Should Buy the Han's Robot Echo and HY 7-Axis Arms?
It fits humanoid builders, research labs and integrators needing light 7-axis arms with force control.
Han's Robot Echo and HY 7-Axis Arms FAQ
How much does the Han's Robot Echo and HY 7-Axis Arms cost?
Han's Robot does not publish a price for the Han's Robot Echo and HY 7-Axis Arms; it is quoted on request.
What are the Echo and HY arms?
7-axis lightweight humanoid robotic arms from Han's Robot.
How many models exist?
Six: Echo 3, 5, 15 and HY 3, 7, 15.
What is the difference between Echo and HY?
Echo uses coplanar cross axes; HY uses spatial cross axes.
What payloads are available?
3 to 15 kg.
Do they support ROS2?
Yes, natively.
Do they have force sensing?
Yes, torque sensors in all joints.
How loud are they?
45 dB or less.
Specifications are based on manufacturer information and may change.
