Conjet ACR™ Robot


The track-driven hydrodemolition concrete removal Robot 557 MPA XL is equipped with a multi-purpose arm allowing full flexibility. Together with an adjustable chassis, the robot is a versatile and compact solution with extended reach and stability.

Stability is key to secure full safety when operating an ACR™ robot. That is why the Robot 557 MPA XL has been designed with the ability to extend the tracks, as well as sliding the main body – both to shift the robot’s center of gravity.

An automatic Stability Control System is incorporated into all 557 MPA XL-robots. The SCS monitors the position of the feed beam and notifies the operator in case of a warning.


  • Fully automated via the Conjet ONE control system
  • Up to 6,3 m vertical reach
  • Main body can slide back up to 400 mm for increased stability
  • Tool-kits available ensures multi­purpose use
  • Diesel or electric power
  • Easy access to the engine and hydraulics for daily maintenance
  • Automatic Stability Control system
  • Hydrodemolition applied
  • Prepared for Conjet Connect

Technical Data

CE, EMC certified

Weight2 840 kg (6 261lb)
Length3 560 (11ft 8in)
Width extended track1 200 – 1 900 mm (3ft 11in /6ft 3in)
Cutting height overhead5 900 mm (19ft 4in)
Cutting height – vertical6 350 mm (20ft 10in)
Cutting reach – horizontal4 900mm (16ft 1in)
Cutting below track level3 050mm (10ft 1in)
Cutting width2 100 mm (6ft 11in)
Maximum reaction force3 000 N
Power supplyDiesel engine, 18,7 kW Electric, 3×380–
480VAC, 32A or 3x200VAC, 63A / 50–60Hz

Know ONE – Know ALL

All 7-Series Conjet ACR™ robots share the same control system, ConjetONE.

ConjetONE allows all operations to be configured from the remote radio control unit or on the robot display, resulting in easy configuration, fast start-up time and high efficiency.

Conjet robot - concrete's surface preparation technologies

Secure a long lifetime and trouble-free operation

To secure a long lifetime, trouble-free operation and added functionality of your ACR™ robots, Conjet has developed add-ons and services to enable just that.

  • Technical support
  • Spare and wear parts
  • Training
  • Add-ons

Powerpacks & Accessories for Robot 557 MPA


The endurance runners at particularly favourable operating costs


The endurance runners at particularly favourable operating costs


The endurance runners at particularly favourable operating costs.


The endurance runners at particularly favourable operating costs.


The Wireless Connection Kit establishes communication between the robot and the pump. The Wireless Communication Kit integrates the robot and the pump control systems. The pump operational data can be maneuvered and controlled from the robot to achieve one point of contact for the operator.


The Rotor Assembly R557 is a surface preparation tool that is designed for removal of the topmost layer of concrete and steel surfaces. The rotor is equipped with 2-4 nozzles for concrete removal and up to 20 nozzles for surface preparation.


The Feed Beam Extension R557 increases the width of the feed beam. This enables the cutting width of the robot to be increased to optimize for maximum productivity.

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Automated Concrete Removal using Hydrodemolition technology

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