The internal structure of most domestic screw lifters is relatively simple. The manufacturer recommends adding grease oil, which needs regular maintenance. The reason is that there is no seal inside the box. If lubricating oil is added, it will leak out of the box.
This shortcoming leads to the allowable input speed of the elevator can not exceed 1500 rpm, and the working system is low. High-speed and high-frequency operation will make the grease heat and liquefy, and the oil will leak from the inside of the tank to the outside. This is a part that the manufacturer of screw lift should improve.
The fully sealed screw lift can not only add liquid oil, but also increase the input speed properly, and is maintenance-free. Except for the aging of accessories, there is no oil leakage. There is still an oil nozzle on the box. If you are in the food machinery industry, it is very suitable to choose a fully sealed lift.
