RealMan RML Series Cobots

Extended Reach for Larger Workspaces

One of the main advantages of the RealMan RML series is its extended reach. The RML63 Standard version offers a working radius of 900 mm, while the Six-Axis Force version extends this to 917 mm. This allows the robotic arms to work across larger areas than shorter-reach models, making them suitable for tasks involving objects or workstations positioned further away.

Both versions have six degrees of freedom and use a humanoid-inspired arm configuration, allowing them to perform a variety of movements and positioning tasks. They also offer a payload capacity of 3 kg and positioning repeatability of ±0.05 mm, supporting consistent movements in suitable applications.

Despite their extended reach, the RML63 arms weigh only 10–10.1 kg. Their compact base, integrated controller, and flexible mounting options make them practical for integration into robotic workstations, service equipment, and customised automation systems.

Applications and Versatility

The RML series is designed for a range of applications, particularly those requiring a longer working radius without using a large industrial robotic arm. RealMan highlights applications in retail, food and beverage, healthcare-related services, exhibitions, and lifestyle service environments.

With suitable grippers and programming, the arms can perform tasks such as pick-and-place operations, product handling, sorting, and light assembly. Their extended reach can be particularly useful when working across wider counters, accessing items inside equipment, or moving objects between separated locations.

The RML63 is also a useful platform for robotics research and education. Its six-axis configuration, available development interfaces, and compatibility with ROS and ROS 2 allow researchers and developers to explore motion planning, robot manipulation, and customised control systems.

The Six-Axis Force version offers additional possibilities for tasks requiring controlled physical contact, although applications involving direct contact with people require appropriate safety engineering and validation.

Force Sensing and Flexible Control

The RML series offers two main configurations: Standard and Six-Axis Force. Both provide the same 3 kg payload and ±0.05 mm positioning repeatability, but the Six-Axis Force version includes an integrated sensor for measuring forces and torques at the robot's end.

The force sensor has a rated measurement range of 200 N and 7 N·m, with a specified accuracy of ±0.5% of full scale. This makes it useful for developing contact-sensitive behaviours, controlled pressing operations, and other force-aware manipulation tasks.

Programming flexibility is another advantage. RealMan provides drag teaching and a browser-based teach pendant, along with API and JSON interfaces for more advanced control. Developers can also work with C/C++, Python, ROS, and ROS 2, making the series suitable for customised robotic projects.

Together, these capabilities make the RML63 an adaptable platform for users who need extended reach, configurable robot control, and the option of integrated force feedback.

Comparing the RML63 Models

RML63 Standard (RML63-B)
Payload: 3 kg | Reach: 900 mm | Robot Weight: 10 kg | Repeatability: ±0.05 mm
Best suited for: Pick-and-place, general handling, sorting, light assembly, research, and longer-reach automation tasks that do not require integrated six-axis force feedback.

RML63 Six-Axis Force (RML63-6FB configuration)
Payload: 3 kg | Reach: 917 mm | Robot Weight: 10.1 kg | Repeatability: ±0.05 mm
Best suited for: Force-sensitive handling, controlled-contact tasks, advanced manipulation research, and applications requiring integrated force and torque measurements.

RML Series vs Other RealMan Cobot Series

The RealMan RML series focuses on extended reach while retaining a six-axis, humanoid-inspired configuration. Compared with the RM65 and RM75 series, which offer shorter 610–627 mm reaches but higher 5 kg payloads, the RML63 reaches further at the expense of payload capacity. The RM75 also offers an additional degree of freedom, with seven axes instead of six.

The ECO63 is the closest alternative, matching the RML63's 900–917 mm reach and 3 kg payload, but using a conventional collaborative-arm configuration with mechanical brakes on all six joints and a slightly lower weight of 9.5–9.6 kg. The ECO65 offers a shorter reach and 5 kg payload, while the smaller ECO62 focuses on compactness. Meanwhile, the RX series, including the RX75 and RX71, emphasises seven-axis humanoid-arm designs, integrated force sensing, and dual-arm robotic applications. The RML63 therefore stands out mainly for its longer reach and humanoid-inspired six-axis layout.