Overview
qbrobotics has once again developed, thanks to its patented Variable Stiffness system, a one-of-a-kind gripper.
At first glance it looks like a traditional gripper, but it is far smarter and intrinsically capable of adjusting the applied force based on the object being grasped. A secure and precise grip, able to lift an iron sphere without dropping it or a soft pastry without damaging it: you simply need to “tell it” whether to be Soft, Medium, or Strong.
Perfectly compatible with the UR+ ecosystem, when paired with a UR cobot it becomes a true plug-and-play solution. Say goodbye to long programming strings: just three words — Soft, Medium, Strong.
The gripper is built on a platform equipped with motors, electronics, and an elastic system; on the rear side, it features a mechanical interface compliant with ISO 9409-1 and a standard electronic connector for integration with any robotic arm.
The movable finger is driven by the actuator shaft, allowing for a gentle motion to grasp objects without causing damage, or for a firmer grip by increasing stiffness; the fixed finger, on the other hand, is directly connected to the frame.
The gripper operates through deflection control between the equilibrium position and the output shaft. Thanks to this control approach, objects of different sizes can be grasped while maintaining the same closure reference (for example, fully closed) and the same stiffness in every position.
Specifications
How Does it Work?:
SoftClaw operates through qbrobotics’ patented Variable Stiffness technology, which enables the internal elastic mechanism to modulate stiffness according to the selected application mode.
The user can choose between three operating modes — Soft, Medium, or Strong — and the gripper automatically adapts the applied force to the object being handled.
Control is achieved through deflection management between the equilibrium position and the actuator output shaft, ensuring stable and repeatable gripping without the need for external force sensors. This allows objects of different sizes and materials to be grasped while maintaining the same closure reference and selected stiffness level.
Installation is simple and fast.
The gripper mounts via a standard ISO 9409-1 mechanical interface and operates at 24V DC. Communication is handled via RS‑485, with digital I/O (DIO) available for straightforward integration with the robot controller. When installed on a Universal Robots cobot, SoftClaw integrates seamlessly within the UR+ ecosystem as a true plug-and-play solution.
Operators can control opening, closing, and stiffness mode directly from the teach pendant, significantly reducing programming time and simplifying overall system integration.
Minimum Software versions:
Polyscope versions 3.8+, 5.2+
Dimensions:
- BOX dimensions (L × W × H): 30 × 30 × 30 cm
- Product dimensions (L × W × H): 111 × 81 × 165.5 mm
- Pad width: 13 mm Weight: 0.76 kg
- Weight: 0.76 kg
- Interchangeable fingers
- Customizable finger pads available upon request.
- Payload 5Kg
- Variable stiffness grasp
- Max grasping force: 75N
- Max payload: 5.0 kg
- Full closing time: 0.5 s
- Weight: 0.86 kg
- Communication protocols: RS485
- ROS & ROS2 compatible
License:
One-time purchase
Extended warranty options available upon request
Dependencies:
Electrical
Certifications & Standard:
ISO/TS 15066
ISO 9409-1
Features
- Patented Variable Stiffness Technology – Enables modulation of the gripper’s stiffness according to the application, providing adaptive gripping that reduces damage, improves process quality, and expands the range of objects handled with a single end-effector.
- Three Modes: Soft, Medium, Strong – Allows quick selection of the appropriate force level, simplifying programming and reducing setup and changeover time.
- Automatic Force Adaptation – The gripper automatically adjusts the applied force based on the object, ensuring stability and safety without additional sensors or complex tuning.
- Secure Handling of Rigid and Delicate Objects – Reliably manipulates heavy metal components and fragile products alike, increasing production flexibility while reducing waste and damage.
- Plug-and-Play with Cobot – Immediate integration with collaborative robots, accelerating installation, lowering integration costs, and enabling fast commissioning.
- ISO 9409-1 Interface – Standard mechanical interface ensuring compatibility with various robotic arms, simplifying adoption and protecting long-term investment.
- Sensorless Deflection Control – Maintains the same closure reference and stiffness across different object sizes, ensuring repeatability while minimizing system complexity.
- Compact Architecture with Wrist-Integrated Electronics – Onboard motors and electronics reduce footprint and cabling, simplify installation, and enhance overall system reliability.
Compatibility
- PolyScope X
- UR3e
- UR7e
- UR8 Long
- UR12e
- UR15
- UR16e
- UR18
Availability
- Argentina
- Australia
- Austria
- Bangladesh
- Belgium
- Brazil
- Bulgarian
- Canada
- Chile
- China Mainland
- Colombia
- Croatia
- Czech Republic
- Denmark
- Estonia
- Finland
- France
- Georgia
- Germany
- Greece
- Hong Kong
- Hungary
- Iceland
- India
- Indonesia
- Ireland
- Israel
- Italy
- Japan
- Latvia
- Lithuania
- Luxembourg
- Macau
- Malaysia
- Malta
- Mexico
- Netherlands
- New Zealand
- Norway
- Oman
- Peru
- Philippines
- Poland
- Portugal
- Qatar
- Romania
- Saudi Arabia
- Singapore
- Slovakia
- Slovenia
- South Korea
- Spain
- Sri Lanka
- Sweden
- Switzerland
- Taiwan
- Thailand
- Turkey
- United Arab Emirates
- United Kingdom
- United States
- Vietnam
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