You can buy the NOZ in our store: Click here. Last updated 16 FEB 2023.
The NOZ™ is a member of the Perfect Fluid Guide family of products. It is a coolant nozzle designed to improve finishes by providing coolant from from the sides of the grinding site.
We always wanted some coolant flushing action directed from the side of the wheel. It seemed that the wheel was always in the way of the standard nozzle which is generally to the right side of the wheel housing. This traditional coolant nozzle configuration can allow for “recutting” of the swarf, especially when traversing right to left, and thus potentially creating surfaces which are non-optimal.
The multiple streams of coolant from the NOZ are focused on a point. The distance from the nozzle to the focal point is called the “focal length”. In the NOZ 2.2, for example, it is about 2 inches, which is designed for 7- to 8-inch wheel diameters. The NOZ 2.2 is about 2-inches wide, too, thus the nomenclature “2.2”. It is compatible with 1/4-inch Loc-Line®, Jeton and similar systems.
In the NOZ 3.3, it is about 3 inches, which is designed for 10- to 14-inch wheel diameters. The NOZ 3.3 is about 3-inches wide, too, thus the nomenclature “3.3”. It is compatible with 1/4-inch Loc-Line®, Jeton and similar systems. The NOZ 3.3L is similar, except it is designed to be compatible with 1/2-inch Loc-Line®, Jeton and similar systems.
For small machines with small pumps, we recommend the HIGH VELOCITY version (11 holes, 0.054-inch diameter). If your machine has a beefy coolant pump, or you have lots of swarf to move, choose the MEDIUM VELOCITY (15 holes, 0.054-inch diameter). Larger machines with big coolant pumps can make the LOW VELOCITY (15 holes, 0.078-inch diameter) version work well. Even better, order a set of three, and experiment. They won’t break the bank.
We use the NOZ 2.2 HIGH VELOCITY version in the production of PFG Stones®, with our valve at full open, and our mist collector and larger splash shield really earn their keep!
The solution we originally envisioned is to build a manifold and use multiple coolant pipes and nozzles. We were heading in this direction… and procrastinated long enough to have the resin-printing epiphany which led to the development of the NOZ. Never underestimate the power of procrastination. The NOZ solution is a simple replacement of a standard nozzle, so it’s fast, reasonably priced and effective.
The Perfect Fluid Guide products were originally developed to improve the production of our world-famous PFG Stones®. And they do so beautifully. We use them exclusively, now, of course.
This device was unapologetically designed by an antenna engineer. It is very analogous to a linear antenna array for feeding a parabolic dish antenna. What makes it interesting is that it would be very expensive to mold. The liquid channels are all rotated to point at the focus. Were this to be molded, the mold would probably need to have all the pins retractable. But, modern resin printing processes allow this to be manufactured without the limitations of molding, nor the expense of machining, and at a reasonable price point.
Another thing that makes this product possible is the very high-quality engineering resin material which is very close to polypropylene in its properties. The resin seems impervious to coolants which are oil-water emulsions.
We have other designs in the works for this product line, to accommodate different size wheels and work areas. If you think you have an application that requires a special NOZ, please contact us.
You can buy the NOZ in our store. Click here.
“Loc-Line” is a registered trademark of Lockwood Products Inc. We have no relationship with them except that we buy and like their products.
“NOZ” and “Perfect Fluid Guide” are trademarks of Kinetic Precision. “PFG Stones®” is a Registered Trademark of Kinetic Precision.