Filtration Unit Prevents Chip Buildup in Coolant Tank Circulation
Eastec 2019: MP Systems has launched a coolant filtration system designed to prevent chips from accumulating inside a machine tool’s coolant tank
MP Systems has launched a coolant filtration system designed to prevent chips from accumulating inside a machine tool’s coolant tank and causing coolant starvation of the flood pump and high-pressure coolant pump. The Purge system is a full-flow system that pulls coolant from the dirty side fo the coolant tank, filters it, and returns it to the clean side of the coolant tank faster than the flood and high-pressure pumps draw from it.
The unit was developed in response to the tendency of small chips to either pass through or clog the screen separating the clean from the dirty side of a typical machine tool coolant tank. When this happens, chips accumulate, reducing coolant volume so that the flood pump starts sucking air, which can result in the triggering of a machine alarm and downtime.
Precision Tool Technologies found capacity for diversification not by adding machines, people or space, but by freeing up time. Running unattended—running so it can machine through all 168 hours in the week—has enabled this shop to use hours when staff is present to deliver work that lands outside its established specialty. To achieve unattended machining, some of the biggest challenges have related to basic details such as chips and coolant.
An expensive lesson that many shops learn too late is that the automatic oil system on their CNC machine tool may not be completely automatic. Since the automatic oil system is designed to give a warning when the oil tank is empty, many machinists simply assume all is well if the alarm doesn't go off.
This micro-volume coolant delivery system uses ethanol as the cooling medium for non-ferrous workpieces. The ethanol evaporates after it cools the cutting tool, so no residue is left behind on machined workpieces.