The next step in collaborative grippers

OnRobot are a Danish company who produce precision-made grippers specifically for the Universal Robots range of collaborative robots. Two models are available, the RG2 and the RG6. Both are simple to install and program.

The key features of these grippers include the elimination of external cables, adjustable gripper mounting, lost grip detection and customisable fingertips.

These products are officially certified by Universal Robots and X-STK are an official UK distributor.

Our application sales engineers have had thorough training and can talk to you about the product’s features in more detail and can advise you on the best solution for your needs and budget.

To learn more about this product or to discuss a specific application you have in mind call us on +44 (0)2920 494 551 or email

For more information download the X-STK OnRobot brochure here or visit the OnRobot website here.

Technical Specifications

Gripper Model RG2 RG6
Payload 2kg 6kg
Gripping Force 3-40N 25-120N
Total Stroke 110mm 160mm
Stroke Time (0-110/40-60 950ms/200ms
Repetition Accuracy +0,1mm
Product Weight 650g 1000g

Bringing the sense of touch to industrial robots

The OnRobot sensor brings the sense of touch to Universal Robot arms. The sensors are officially certified by Universal Robots and allow more tasks to be automated, helping reduce production times.

The OnRobot six multi-axial force/torque sensor can help automate many tasks that require the dexterity of the human hand.

They are durable and designed to fit various industrial robot arms to carry out tasks such as polishing, palletising and stacking with speed and high precision. Other applications include centre-pointing, path recording, box insertion, pin-in-the-hole, metal part sanding and presence detection.

To view or download our brochure click here.

To learn more about this product or to discuss a specific application you have in mind call us on +44 (0)2920 494 551 or email

Available Applications

N.B. OptoForce has merged with OnRobot and has adopted the OnRobot brand – these videos still have OptoForce branding.

Prescence Detection

The OnRobot Force Torque Sensor along with the OnRobot Move application fine tunes the UR's protective stop function, so even the smallest counterforces - even forces smaller than 10 N - can be perceived.

Flexible cobots boost capacity and satisfaction in a machine shop

FT-Produktion in Sweden turned to flexible collaborative robots and OnRobot grippers to boost productivity without growing the workforce. The new technology also increased job satisfaction, with variation to the daily routine.

Read the case study

Gecko Gripper

Attach like a gecko and automate more

The nature inspired OnRobot gecko technology makes it possible to attach and lift any kind of flat and smooth surfaces. Fast and easy gripping technology for Pick & Place application.

  • Grabs with gecko-style adhesive
  • Picks up flat objects without air system
  • Can lift solid or porous objects
  • Instantaneous gripping
  • Integrated load sensor for precise gripping
  • Proximity sensor – part presence

The Gecko Gripper's unique tech opens up new possibilities with applications using collaborative robots. Areas such as fabrication and handling of solar panels, metal sheets and glass sheets. With a payload of 4.1 kg, the Gecko Gripper can easily lift porous flat objects.

The gripper attaches to smooth object surfaces though the same mechanism used by actual geckos, hence there is no need for air supply. The inbuilt proximity sensor enables the detection of the work piece from a distance. The Gecko Gripper is compatible with robot arms from Fanuc, Kawasaki and Universal Robots.

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RG2-FT Smart Gripper

See and feel objects with intelligent gripping


  • Gripper with force-torque (F/T) sensor at the fingertips
  • Detects workpiece using proximity sensor
  • Detects risk of slipping before it happens

With built-in 6 axis F/T and proximity sensors at its fingertips, the RG2-FT is the first intelligent gripper on the market that can see and feel objects. This ensures faster deployment of collaborative applications and ultimately higher productivity. The gripper’s integrated proximity sensors enable workpiece detection and centering. The gripper come with integrated force-controlled part insertion software and features precise and simple depth compensation.

The RG2-FT is suitable for use in collaborative operations and precision machine tending, assembly and insertion applications where one can achieve better production quality, particularly for fragile material handling.

The RG2-FT is compatible with lightweight robots from Universal Robots, and the custom interface is available in 21 languages.

For more information, visit:

Contact us for a quote.