The Toro-Rail 12 is significantly lighter than other solutions on the market - this is the only claim we are making. If this provides any benefits for your printer, depends on your setup. Potential improvements as a result from the reduction of moving mass could be:

Comparison with conventional rail

Standard MGN 12 Rail401g334g267g
Toro-Rail 12203g173g138g
Weight saving198g

Due to the constant optimization of the manufacturing process the weight of the shipped rails might be slightly higher or lower than the values stated above.

What's the catch?

For a 600mm rail, the moving mass is reduced by almost 200g. You might think, that that impressive weight saving might come at a cost. Well, yes and no. The properties of the rail do change, but the question is: Do the changes of the properties have a negative effect on the print quality? We have done many hours of test printing and have not observed any negative effects when mounted on a support tube. The rails run as smooth as conventional rails.

If you plan to use this in a "rail only" setup we recommend that you glue a thin (0.5mm) metal strip to the bottom of the rail. Why? Because open profiles have a significantly lower torsional rigidity than closed profiles (try twisting a paper towel roll - then make a longitudinal cut and try it again). However, we have not tested this approach yet and currently recommend the use of a support tube.