This device is not suitable for 72 ties since
1. the engine is too weak, partly it moves no longer (even with a smaller load, long-term durability ?!)
2. After I had hung about 60 ties, I have the device times subjected to an "acid test" and run 5 minutes. After the 5 minutes are left whole 7 ties in the holder, since the treadmill was bent outward, while the smallest plastic mounts break off easily, making it even easier to fall out the next time. Unfortunately, even beyond repair.
Conclusion: Good idea poorly executed, all cheapest China production which you will not have long joy with regular use and fully loaded. Very unfortunate.