Muns Techniek is a system integrator for Hydraulic systems and Electrical controls. With more than 25 years of experience we offer Hydraulic and Electric Solutions for projects in the Maritime, Offshore and Industry.


The customer’s vessel is equipped with two A-frames, each with two cylinders to move the individual legs of the frame. Our customer requested a solution to reduce the tension on the frame when the frame is moving.

Testing van de A-frames

Muns Techniek solution

To reduce the tension, both frames were equipped with equalizing valves. These valves reduce the speed of either cylinder when necessary. This keeps the frames straight and reduces tensions that would occur due to a difference in cylinder extension. The system is equipped with sensors. The feedback from these sensors is used to continuously correct the speed of the individual cylinders as necessary.


The system works automatically, using the feedback from the sensors installed in this installation. The user can customize the settings of the system, allowing the user to set the limits and to a point control how the system should react to a difference in cylinder extension.