Abstract: A grinding liquid mixing and supplying system comprises a stock solution barrel, a stock solution circulation tank, a grinding liquid mixing tank, a grinding liquid supplying tank, which are configured with pipelines that interconnect each other; and capacitive liquid level sensors connected in parallel with these tanks. The stock solution circulation tank is provided with a first pipeline, the first pipeline is provided with a first filter and a first pump, and the first pipeline allows the stock solution to flow out from the stock solution circulation tank, to be pressurized by the first pump, to be sent to the first filter, and to flow back, so as to be circulated and filtered. The capacitive liquid level sensor detects a liquid level and monitors whether the liquid is normal in the tanks, so as to maintain and ensure the output quality of the grinding liquid.

Abstract: A method for producing a grinding liquid mixing tank and the structure thereof, the method includes: using a tank body made of PP or PVDF wherein a bottom thereof has a conical arc-shaped wall having at least one wall hole; using a rotor case made of PP or PVDF and including a bottom case wall, a side wall surrounding the bottom case wall, and a connecting wall connected to a top edge of the side wall; heating to soften the rotor case and placing it into the wall hole; using a jig to contact the rotor case, such that the connecting wall is deformed to be coupled to the wall hole; welding a joint between the connecting wall and the wall hole to form the tank body; and a magnetic levitation stirrer is then installed in the tank body to complete the structure of the grinding liquid mixing tank.