WLKATA Haro380 Review: Specs, Price and Applications of the Desktop Six-Axis Robot Arm
Updated: 7 days ago
The WLKATA Haro380 is a desktop six-axis robot arm with harmonic drive reducers on all joints, ±0.05 mm repeatability, a rated payload of 500 g and a reach of 434 mm, listed from USD 4,890 as a Core Kit. This review covers its specifications, design, programming options, applications and price.
Quick Verdict
The Haro380 is the most precise arm in the WLKATA range. Harmonic drives on every joint give it ±0.05 mm repeatability, which is unusual for a desktop arm, and it adds industrial interfaces such as EtherCAT and Modbus to the usual USB and wireless connections. It is aimed at micro-manufacturing, laboratory automation, embodied AI research and teaching. Its payload is small, and when this review was written the maker's shop listed it as sold out, with restocking expected.
WLKATA Haro380 at a Glance
Payload: 500 g rated, up to 1000 g under certain conditions
Reach: 434 mm from the flange
Axes: 6 plus 1
Repeatability: ±0.05 mm
Reducers: harmonic drive on all joints
Price: from USD 4,890 for the Core Kit
WLKATA Haro380 Technical Specifications
The table below lists the published specifications of the WLKATA Haro380.
Specification | WLKATA Haro380 |
Manufacturer | WLKATA Robotics |
Model | Haro380 |
Axes | 6 plus 1 degree of freedom |
Rated payload | 500 g |
Maximum payload | 1000 g under certain conditions |
Reach | 434 mm from flange, 393 mm from wrist |
Repeatability | ±0.05 mm |
Reducers | Harmonic drive on all joints |
Mounting | Any angle |
Interfaces | USB, RS485, Wi-Fi, Bluetooth, UART, Modbus, EtherCAT, TCP socket |
Price | USD 4,890 Core Kit; USD 5,690 Advanced Kit |
Detailed Technical Data
Open API with support for control by large language models and MCP servers
AI assistant voice control box included in the Core Kit
Emergency stop switch included
Aluminium base, calibration board and calibration blocks included
Weight, speed and power requirements are not stated on the product page
Design and Build Quality
The defining feature of the Haro380 is its drive train. Harmonic drive reducers, the type used in industrial robots and cobots, are fitted to all joints, and this is what brings repeatability down to ±0.05 mm on an arm small enough for a desk. The arm can be mounted at any angle. The Core Kit arrives in a carry case with an aluminium base, a two-finger soft gripper, an electric gripper with adjustable stroke and force, and a suction tool with three sizes of cup. The maker does not publish the arm's weight or speed on its product page.
Programming and Software
Graphical and Text Programming
The arm is programmed in WLKATA Lab, the maker's graphical software, or in Blockly, Python, C and C++. The maker describes WLKATA Lab as an alpha release.
Robotics Frameworks
Packages are provided for ROS and ROS2, with libraries for MATLAB, RoboDK and Arduino.
Industrial Communication
EtherCAT, Modbus, RS485 and TCP socket connections allow the arm to work with PLCs and other automation equipment.
WLKATA Haro380 Applications and Use Cases
Typical applications for the Haro380 are micro-manufacturing, laboratory automation, research and teaching.
Micro-Manufacturing and Sorting
With ±0.05 mm repeatability the arm can place and sort small components, within its 500 g rated payload.
Embodied AI Research
The open API, ROS2 packages and support for language-model control make it a platform for research into robot learning.
Education
Free course material on programming and control is published for the arm, and university textbooks are announced.
WLKATA Haro380 Price and Value
The WLKATA Haro380 Core Kit is listed at USD 4,890 and the Advanced Kit, with additional grippers and suction tools, at USD 5,690 in the manufacturer's shop. When this review was written the Core Kit was shown as sold out, with restocking expected. Prices are indicative, are not final and may change.
For the company behind the robot, read the WLKATA Company Profile: Background and Products.
Pros and Cons
Pros
Harmonic drives on all joints
±0.05 mm repeatability on a desktop arm
EtherCAT, Modbus and RS485 as well as USB and wireless
Wide software support, including ROS2 and Python
Grippers and suction tool included
Cons
500 g rated payload
Listed as sold out at the time of writing
Weight and speed not published
Main software described by the maker as an alpha release
Who Should Buy the WLKATA Haro380?
The Haro380 fits laboratories, universities and developers who need industrial-style accuracy and interfaces in a desktop arm for light parts.
WLKATA Haro380 FAQ
How much does the WLKATA Haro380 cost?
The Core Kit is listed at USD 4,890 and the Advanced Kit at USD 5,690 in the manufacturer's shop. Prices are indicative and may change.
What is the payload and reach of the WLKATA Haro380?
The rated payload is 500 g, up to 1000 g under certain conditions, and the reach is 434 mm from the flange.
How accurate is the WLKATA Haro380?
Its published repeatability is ±0.05 mm.
How many axes does the WLKATA Haro380 have?
It is a six-axis arm with one additional degree of freedom.
What makes the Haro380 different from other WLKATA arms?
It uses harmonic drive reducers on all joints and adds EtherCAT to its interfaces.
How is the WLKATA Haro380 programmed?
With WLKATA Lab, Blockly, Python, C or C++, and through ROS, ROS2, MATLAB, RoboDK and Arduino libraries.
Which interfaces does the WLKATA Haro380 have?
USB, RS485, Wi-Fi, Bluetooth, UART, Modbus, EtherCAT and TCP socket.
What is the WLKATA Haro380 used for?
Micro-manufacturing, laboratory automation, embodied AI research, teaching, inspection and sorting.
Specifications and prices are based on manufacturer information. Prices are indicative, are not final and may change.
