Highly agile direct-drive robotic hand for precise manipulation, research, and demanding AI applications.
20 active DoF
70 N gripping force
Direct Drive
Up to 500 Hz
Compact industrial robotic hand for precise gripping, handling, and automated applications.
6 active DoF
50 N gripping force
±0.2 mm precise
CAN & RS485
Wireless exoskeleton glove for precise capture of human hand movements and teleoperation.
15 sensors
0.1° accuracy
< 10 ms latency
Up to 3.2 h runtime
Teleoperation arm for the precise recording and transmission of human arm movements to robotic systems.
14 degrees of freedom
200 Hz acquisition
658 mm wingspan
CAN connection
Highly dynamic robotic hand for embodied AI, research, and particularly fast manipulation tasks.
22 degrees of freedom
0.2 s opening time
Up to 500 Hz
Cable drive
Ultra-lightweight robotic hand for humanoid systems, research, and flexible manipulation tasks.
Only 360 g
70 N gripping force
6 active DoF
EtherCAT & CAN
High-performance robotic hand for precise handling, research, and demanding automation.
21 degrees of freedom
100 N gripping force
±0.2 mm precise
CAN & RS485
Versatile robotic hand for research, robotics development, and precise manipulation tasks.
10 active DoFs
80 N gripping force
±0.2 mm precise
CAN & RS485
Left hand O6 – lightweight robotic hand for humanoid robotics and industry
Weighing only 360 g, the Linker Hand O6 combines compact dimensions with 6 active and 5 passive degrees of freedom. A gripping force of up to 70 N and CAN, CAN FD, RS485, and EtherCAT interfaces allow for flexible integration into humanoid robots and industrial systems.
Left Hand L20 – highly dexterous robotic hand with 21 degrees of freedom
The Linker Hand L20 offers 16 active and 5 passive degrees of freedom for particularly natural and precise movements. With up to 100 N of gripping force, it is suitable for research, industrial automation, and demanding manipulation tasks.
Left Hand O30 – Direct-drive robotic hand with 20 active degrees of freedom
20 fully active joints allow for independent control of every range of motion. The direct-drive architecture, communication of up to 500 Hz, and 70 N gripping force make the O30 a high-performance platform for research, AI training, and precise automation.
Linker Hand L30 – fast tendon-driven robotic hand with 22 degrees of freedom
The cable-driven Linker Hand L30 combines 18 active and 4 passive degrees of freedom with extremely fast response. An opening time of just 0.2 seconds and precise force control make it particularly interesting for research, embodied AI, and dynamic manipulation.
Linkerbot develops sophisticated robotic hands and solutions for dexterous manipulation and Embodied AI. The portfolio combines precise robotics hardware with teleoperation, data acquisition, and AI-based applications for research and industry.
The Linkerbot range at Terra Robotics includes various Linker Hand models such as the L10, L20, L6, O6, L30, and O30. Depending on the application, they differ in terms of degrees of freedom, drive technology, gripping force, speed, and interfaces, among other features.
A dexterous hand is a multi-jointed robot hand that can perform complex gripping and manipulation movements similar to a human hand. This allows robots to grasp, move, rotate, and precisely process objects.
The models differ primarily in terms of degrees of freedom, weight, gripping force, speed, sensors, and drive. Linkerbot offers solutions with linkage, cable, and direct drives, allowing the appropriate hand to be selected specifically for the application.
This depends on weight, required agility, gripping force, speed, and the robot's existing interface. Compact models like the O6 are particularly suitable for weight-sensitive integrations, while models like the L20, L30, or O30 are designed for more complex manipulation tasks.
Degrees of freedom describe the independently possible movements of a robot hand. The more actively controllable degrees of freedom there are, the more precisely fingers and joints can be moved and complex gripping movements can be performed.
Depending on the model, interfaces such as CAN, CAN FD, RS485, or EtherCAT are available. This allows the robotic hands to be integrated into various robot platforms, development environments, and industrial systems.
Yes, depending on the model and configuration, Linkerbot robotic hands can be equipped with tactile sensors. This allows for the collection of additional information regarding contact, pressure, and interaction with grasped objects.
Typical areas of application include humanoid robotics, research, flexible production, assembly, logistics, teleoperation, and AI training. These hands are particularly interesting wherever objects need to be manipulated precisely and flexibly.
Terra Robotics assists in selecting the appropriate Linker Hand based on your application and technical requirements. In doing so, we take into account, among other things, the robot platform, degrees of freedom, gripping force, weight, interfaces, sensor technology, and the planned integration.
Linkerbot develops highly agile robot hands for humanoid robotics, Embodied AI, research, and industrial automation. The focus is on so-called dexterous hands, which enable complex gripping and manipulation movements similar to a human hand. To achieve this, Linkerbot combines various drive concepts, precise joint control, force control, and, depending on the configuration, tactile sensors.
The portfolio covers various requirements regarding weight, agility, gripping force, and speed. A special feature is the support for different technical concepts: Linkerbot develops robot hands with linkage drives, cable-driven or tendon drives, and direct drives. This allows the appropriate hand to be selected specifically based on the robotics platform and application.
Humanoid robots are increasingly expected to perform tasks in environments originally created for humans. Tools, handles, switches, containers, and numerous everyday objects therefore require flexible manipulation capabilities.
This is exactly where dexterous robot hands come into play. Multiple independently or coupled controllable fingers allow for significantly more versatile gripping movements than classic two-finger grippers. Whether it's a pincer grasp, a powerful enclosure, rotating an object, or fine-motor manipulation – the hand becomes a decisive interface between the robot and the physical environment.
Linkerbot offers various Linker-Hand models with up to 22 degrees of freedom for this purpose. This makes the systems particularly suitable for humanoid robots, mobile manipulators, and research platforms where the most flexible possible interaction with various objects is required.
Further platforms for this field of application can be found in our Humanoid Robots section.
The Linker Hand O6 is designed for the most compact and lightweight integration possible. With a dead weight of only 360 grams, it puts relatively little strain on the robot arm and is therefore particularly suitable for humanoid platforms and mobile robotics systems.
The O6 features six active and five passive degrees of freedom and achieves a maximum five-finger gripping force of up to 70 N. For integration, CAN, CAN FD, RS485, and EtherCAT, among others, are available. Tactile sensors can be added optionally.
This makes the O6 suitable for applications where low weight, compact dimensions, and reliable gripping are more important than fully independent control of every single finger joint.
The hand is also offered, for example, as an end-effector option within various Unitree R1-A5-D Flagship platforms.
For more demanding manipulation tasks, Linkerbot offers the Linker Hand L20, a significantly more agile platform. The robot hand combines 16 active and five passive degrees of freedom, reaching a total of 21 degrees of freedom.
With a gripping force of up to 100 N, the L20 is suitable for both finer manipulation tasks and applications where objects must be reliably held and moved. Typical areas of application include robotics research, industrial automation, humanoid systems, and development projects involving complex gripping strategies.
Thanks to the higher number of controllable movements, different finger positions can be set up more precisely and adapted to the size, geometry, and position of an object.
The Linker Hand O30 pursues a different technical approach. It relies on a direct-drive architecture with 20 fully active degrees of freedom. This allows for highly differentiated control of movement ranges.
A communication rate of up to 500 Hz enables fast control cycles and makes the platform particularly interesting for research, teleoperation, AI training, and dynamic manipulation tasks. The maximum gripping force is up to 70 N.
It is also relevant for development projects that a ROS2 SDK is provided for the O30. This allows the hand to be integrated into existing robotics and research environments and controlled in a targeted manner via software.
With the Linker Hand L30, Linkerbot offers a particularly fast, cable-driven robot hand. The system features 18 active and four passive degrees of freedom, reaching a total of 22 degrees of freedom.
The tendon-drive architecture is conceptually oriented toward the function of human tendons. Linkerbot specifies an opening time of only 0.2 seconds for the L30. This makes the robot hand suitable for dynamic manipulation, research, teleoperation, and Embodied AI applications where fast movement reactions play an important role.
Compared to the O6, the focus with the L30 is less on maximum weight reduction and more on a combination of high agility, speed, and precise control.
For Embodied AI, it is not enough for a robot to simply recognize its environment. Artificial intelligence must be able to translate perception into physical action. Robot hands perform a decisive part of this interaction.
For example, an AI system can recognize a tool, determine its position, and calculate a suitable gripping point. However, only an appropriately agile hand makes it possible to actually pick up, align, and use the tool.
Linkerbot therefore connects robot hardware with topics such as teleoperation, data acquisition, and AI training. Movement and interaction data can be used to develop manipulation models and train real gripping tasks.
For universities, research institutions, and AI teams, this creates a practical foundation for projects revolving around dexterous manipulation, reinforcement learning, imitation learning, and physical AI.
Another important area is teleoperation. In this process, human movements are transferred to a robot or its hands. Such systems can be used for direct remote control on the one hand, and can provide high-quality training data for AI models on the other.
For humanoid robotics, this form of data acquisition is particularly relevant because complex human manipulation skills are difficult to program completely manually. Instead, demonstrations can be recorded and later used to train intelligent models.
This creates applications for research, industrial manipulation, service robotics, and future humanoid work platforms.
Dexterous robot hands are particularly suitable for universities, research institutes, and development departments. Possible topics range from grip planning and force control to tactile perception, computer vision, teleoperation, and AI-based manipulation.
Thanks to various interfaces and development approaches, the hands can be integrated into existing robotics platforms. For educational and research projects, real manipulation problems can thus be investigated, which can only be represented to a limited extent in simulations.
Further robotics platforms for research and education can be found at Educational Robots.
Choosing the right Linker Hand depends on several factors. Key aspects include required degrees of freedom, dead weight, gripping force, speed, sensor technology, communication interfaces, and mechanical integration into the respective robot arm.
The O6 is particularly suitable for compact and weight-sensitive applications. The L20 offers high agility combined with high gripping force. The O30 is aimed at projects with fully active joint control and fast control cycles, while the L30 focuses on dynamic, fast, and highly agile manipulation.
Companies, research institutions, and universities should therefore not compare only the maximum number of degrees of freedom, but consider the complete robotics platform and the planned manipulation process.
Terra Robotics provides support in the selection and integration of Linkerbot robot hands, coordination with humanoid robots and research platforms, as well as the technical evaluation of interfaces, sensor technology, and gripping requirements.
Anyone wishing to compare different humanoid systems and manipulation platforms can find further solutions for research, Embodied AI, and industrial robotics in the Humanoid Robot Comparison.
