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High Pressure coolant systems buying considerations, efficiency, and coolant system applications

High pressure coolant can be very beneficial for almost any job on your CNC, some much more then others. The benefits of the high pressure coolant usually out weigh the initial cost when it comes to tooling savings, cycle time and finish. Tooling will last longer, speeds will be increased especially when drilling or boring. High pressure coolant will keep the part from heating up by transferring the heat into the coolant, away from the tool and part. Therefore, holding tighter tolerances, keeping your chips consistent and heat free. Learn to turn, mill, and drill faster with high pressure coolant systems running on all your CNC's.

Benefits of high pressure cutting coolant

  • Often drastic cycle time reduction (20-70%)

  • Increased speeds in hole production

  • Eliminate heat related failure of insert

  • Reduced chip welding and "built-up edge" in aluminum machining

  • Better chip control in Low Carbon Steels

  • Improved quality and speed of Threaded Holes

  • Reduce or eliminate work hardening from peck drilling

  • Improved tapping in tough materials

  • Increased life of expensive Custom Tooling

  • Improved Auto-loading by eliminating chip problems

  • Increased tool life in Abrasive Materials

High pressure coolant systems purchasing tips

A couple things to consider when buying a high pressure unit is first make sure your machine tool purchase is capable of 1000PSI high pressure coolant. There are cheaper units which have just the pump and a few canisters for coolant line filters. Others for example: Chipblaster has a huge reservoir that will just about guarantee the chips and will not get into the lines and clog something up. Cooljet also has a nice unit that is worth considering, though I have not had much experience with them. With the canister type, when you change filters there will always be a little debris that gets through to the spindle nozzles. If any filters bust or leak or are not changed when they should be it will cause a blockage. This ,therefore; causing your drills and taps to clog and break causing excessive tooling costs. The maintenance intervals on high pressure units with a reservoir are also much longer, so you do not have to schedule as much downtime to change filters.

Fixed or Variable speed motors for high pressure coolant pump systems

Fixed displacement coolant pumps or fixed RPM Motors- put out a constant amount of coolant. For example: Lets say 10 gallons per minute. When your using a small tool lets say 1/8 inch drill. The holes are very small and you can not get 10 gallons a minute through that tool. What will happen then, is the excess coolant will dump over a relief valve. This excess dumping will heat up the coolant, which can cause problems holding tolerances. Using this type of system also uses more electricity because of running the pump at a constant speed, along with decreasing the life of the pump.

Variable speed motors or coolant pumps- These units will either contain a variable speed pump or use a variable speed drive to ramp up the speed of the motor, to output more flow when there is a call for coolant. These high pressure units will maintain the right amount of gallons per minute to maintain the desired pressure.

Chipblaster and Cooljet have a lot of information on high pressure coolant systems.

CNC Machine tool high pressure coolant systems and other products for high force, high pressure coolant systems.