Fall protection: Fall restraints 

Falling from heights is one of the most occurring causes of fatal occupational accidents. When working at heights of more than, e.g., 2,5 meters, many legislators require to secure workers to prevent them from falling. As an examples of fall protection, is fall restraint, which is avoiding workers to reach dangerous positions.

In circumstances where, for example, handrailings cannot or may not be installed, then McNetiq Controlock® magnets can be attached to lines to form a safe and secure basis for fall restraint purposes. The magnet will be connected to a lanyard with harness, to prevents the worker from reaching unsafe areas.

Working safely with magnetic anchors

With McNetiq Controlock® magnetic anchors, fall restraining positioning lines can be safely secured. This technique is especially applicable in situations where permanent fixing points cannot be used.

For a safe use it is critical to assess the magnetic strength of the anchor magnets: the thickness of the steel plate, coatings or paints, and uneven surfaces can influence the magnetic force. McNetiq’s patented Controlock® system allows the users to check this strength on the spot.

McNetiq’s Controlock systems are in use since 2014, especially when connecting scaffoldings to storage tanks. Users are a large range of the most reputable global independent tank storage operators, mayor oil producers, and chemical producers.

Examples of use

Ship construction and repair

For the safe installation of handrails or execution of tasks.

Construction cranes, harbor cranes and loading/unloading bridge cranes

For the safe executing of inspections or repairs.


For the safe storage or inspection on top of containers.

In-vessel holds

During the inspection, repair or cleaning of the vessel holds.


For use during the construction, maintenance & repair operations and decommissioning of offshore installations.

How to use a magnetic anchor?

Based on the earlier defined plan regarding the safe installation of the fall restraints, two or more McNetiq Controlock anchors will be installed. Steel or nylon ropes will be connected to the anchor magnets, depending on the hazardous fire operation, like welding or grinding. A running leash with safety harness will be attached. Testing the magnet capacity is the next step. However, one of the team members need to be trained as Certified Controlock Operator, to be able to test the Controlock anchor concerning its magnetic strength (pull and shear) using a handheld testing device. After confirming that the pull and the shear force are both exceeding the needed capacity, the anchor will be cleared to be used, and the safety harness will be connected.