I've used undermount slides for nearly twenty years but recently used a lesser known brand because I thought the shipping had gotten too high and the lesser known brand was available locally. Richeliue brand, has a simple grey plastic front mounting clip.
Frameless cabinets, system holes, 5 mm screws attaching the slides to the carcasses. Clean slides, everything finished before slides installed.
I stopped using them because the brackets weren't as easy to adjust as the Grass Dyna Pro slides but I have a customer with a couple dozen pair of the Richeliue brand undermount soft close and the dang drawers aren't closing consistently, as in one time they will close up with a gentle shove, net time they will stop a half inch away from the cabinet face.
So I go out there today and where the most problems are is in the bottom drawers that are most heavily loaded. Not that heavily loaded, maybe thirty pounds. Feel in back to see if the little metal prongs in back are engaged in the holes in the back of the drawer, remove the drawer and check for level, same distance from the front of the cabinet, parallel, wear marks on the drawer indicating a protruding screw, test each slide without the drawer, then with an unloaded door. One or two worked better after resetting them, four or five didn't. Some work perfectly for a couple of tries, then stop closing tight, stopping 1/4" or 3/8" away from the rest of the drawers. Doesn't seem to be rhyme nor reason for the problems.
Any ideas on getting these drawers to close consistently? The top and middle drawers work okay, just the bottom drawers.
And is there a set amount of pull that is expected from one of these soft close undermounts? When you pull one open it seems that there is at most a couple of pounds of force to overcome while pulling the cylinders to the front catch position, how could there be any more "pull" when the drawer is pushed closed?
Is there a limit on how much weight these slides can pull in consistently?