Developed by ECA Group in order to be fitted on lightweight ROVs, the arm 5E micro is entirely electrical which makes it a key element for tricky tasks requiring high accuracy without jolt. It is also one of the lightest 5-function electrical manipulator arm available on the market.

This arm incorporates brushless motors, which leads to an appreciable ease of maintenance. It can conduct a large range of operations, thanks to the continuous rotation of the jaws.  The 300m version is eco-friendly as its no-oil system avoids any risk of pollution spillage; the 6000m alternative is oil filled.

It can be fitted on any inspection-class ROV available on the market and can be fitted with a micro grabber.

Two arms can be installed on a single skid and can run diverse operations in complete autonomy from one another. This configuration is highly profitable for ROVs owners who desire to achieve complex underwater operations.



  • The world’s lightest underwater 5-function manipulator arm suited to very light ROVS
  • Very lightweight 2.75 kg in water
  • Zero oil system (oil filled system available in option)
  • Depth rating 6000 m
  • Lifting capacity 10 kg
  • Powered by brushless 24-30 VDC electric motors
  • Skid mounted (optional)


  • Low-power consumption
  • Ease of maintenance
  • Wide range of grabbers
  • Compatible with any light ROV
  • High lifting capacity


  • Offshore operators
  • Research institutes
  • Universities
  • Nuclear operators
  • Private service providers operating on immerged structures
  • Defence operators

typical missions

  • Underwater intervention
  • Underwater manipulation
  • Object retrieval
  • Nuclear environment operations
  • EOD
  • Sampling


  • Recovery of objects laying on sea bottom 
  • Action on activators on well heads
  • Carrying a sensor (e.g. CP probe or NDT) or a light tool  to complete the ROV inspection task
  • Assistance to divers (e.g. carry a rack of tools or bring back to the surface an object found by the diver)
  • Soft rope cutting


  • Extraction of foreign objects inside spent fuel assembly within the BK pool ; this requires a specific grabber to be mounted on the arm
  • Mounted on a special skid attached under lightweight ROVs, it performs foreign object recovery inside nuclear pools and decommissioning operations

News & Events

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ECA Group - ARM 5E micro
ECA GROUP equips Shanghai University ROV with electric arm for subsea... MARITIME

ECA Group provides a 5 function electric manipulator arm to be integrated onto an ROV belonging to the University of...

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