We use them ;D
Seriously though, we have tested them with something as large as a TS75 and they are more than adequate to hold the weight. Also a fully loaded M 89 is not something that is in the featherweight class. When customers came to us to find a SYS3 rack solution that would allow access to the contents of the Systainer, we attempted to find the best balance between the existing Tanos solutions... Rails and SYS-AZ drawers, with all three being fixtures in our shop. Like anything in the shop they have their place and their use.
So how do we use them in our shop...
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[*]We still use the SYS-AZ drawers for tools that are used frequently and stored in Systainers. This solely has to do with the action of the drawers slides vs the much simpler captive rail setup of our SYS-RLZ. The SYS-RLZ slide nice, but bearings slide a bit nicer
[*]For Systainers containing tools or fasteners that we need to get to on a reoccurring but not an everyday basis we use our SYS-RLZ. Both in cabinets built for the standard Tanos rails and cabinets built for SYS-AZ drawers.
[*]For Systainers containing tools or fasteners that we seldom access or that when we do we are always taking the Systainer to the work or bench, those are still on the standard Tanos rails. This is simply because we haven't chosen to swap them out and if they are still working
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We have had customers purchase them to do a complete swap out of their standard rails, we've had customers purchase them for new workbench or storage build outs and we've had customers purchase them to use them in a similar manner to how we do. We hope that helps...
Thank you
Forged 3D
PS - Thanks for the question, we might just use this for a blog article in the future cause we love talking about organizing and how we do things in the shop!