Product Description
PENNEX N is the trademark for a line of dark cutting oils compounded with sulfur and other active agents. The two grades contain a mist suppressant to minimize fogging and stray mist in the workplace. In the machining of iron, steel, and ferrous alloys - particularly in the more difficult operations - PENNEX N has established an excellent performance record of many years standing. It also has been widely used in the threading of steel pipe and conduit. Because of its active sulfur content, however, PENNEX N has a tendency to stain or tarnish metals containing copper.
Features and Benefits
PENNEX N cutting oil offers the following features for threading, tapping, broaching of ferrous metals:
- Dark, sulfur compounded
- Contains mist suppressant
- Helps extend tool life
- Can be blended with mineral oil to adjust viscosity
Applications
PENNEX N 40 is a heavy-duty fluid that gives excellent performance in the threading, tapping, and broaching of iron, steel, and tough ferrous alloys and in other critical machining jobs. For less exacting service, PENNEX N 40 can be cut back with light mineral oil, such as FAXAM® 22 or CORAY® 22, to provide the desired lubricating properties.
PENNEX N 47 is an extra-heavy-duty cutting fluid for the machining of ferrous metals. It is recommended for the most severe threading, tapping, broaching, and other operations, especially where high speeds, smooth finishes, and long tool life are important. For honing, PENNEX N 47 should be diluted with about 10 parts of low-viscosity mineral seal oil, the exact proportions depending on individual requirements.
Because of its superior performance under adverse conditions, PENNEX N 47 offers a significant advantage in versatility. Applied straight or cut back with light mineral oils, PENNEX N 47 can be used for the full range of machining operations on ferrous metals, from the simplest to the most exacting. For these purposes, a number of concentrations are suggested in the table below. The proportions shown there can be modified to give best results under the specific conditions encountered.
PENNEX N 47, the higher viscosity grade, contains a higher proportion of the compounding agents than does PENNEX N 40, the lower-viscosity grade. Either grade may be blended with mineral oil to provide lower or higher viscosities; however, it should be recognized that such dilution reduces the additive concentration.
PENNEX N is usually applied under pressure from the sump of the machine tool. Flow to the work should be in a high-volume, low-velocity stream, covering the entire cutting area at all times.
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Pennex N 47 Suggested Concentrations* |
Stainless, high-Alloy and Tough Steels |
Mild Steels |
| Cutting Operation | | |
| Threading | Neat | 1:1 |
| Tapping | Neat | 1:1 |
| Broaching | Neat | 1:1 |
| Gear Shaping | Neat | 1:1 |
| Gear Hobbing | 1:2 | 1:3 |
| Automatics | 1:2 | 1:4 |
| Milling | 1:1 | 1:4 |
| Drilling | 1:1 | 1:3 |
| Reaming | 1:1 | 1:3 |
| Turning | 1:2 | 1:3 |
| Turrent Lathes | 1:1 | 1:4 |
| Sawing | 1:2 | 1:3 (mineral seal oil) |
| | Ratio of Pennex N 47 to Mineral Oil | |
Typical Properties
PENNEX N Grade |
40 |
47 |
| Viscosity, cSt @ 40°C | 28.0 | 42.5 |
| Sulfur, Total % | 2.5 | 3.0 |
| Sulfur, Active % | 1.5 | 1.4 |
| Chlorine mass % | 0 | 1.7 |
| Fatty oil compounding mass % | 1.8 | 18.0 |
| Color | Black | Black |
| Flash point, °C(°F) | 180(356) | 165(329) |
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Health and Safety
When handling metalworking fluids, care should be taken to prevent them from contacting the skin or splashing into the eyes. Oils and greases in contact with skin can plug sweat glands and hair follicles, which may lead to dermatitis. Accordingly, good personal hygiene should always be practiced. Oil and grease should be removed from the skin promptly with a waterless hand cleaner, followed by washing with soap, water, and a soft skin brush. Soiled clothing should be removed promptly and dry-cleaned or washed with laundry detergent before reuse.
Safety glasses, a face shield, or similar protection should be worn and normal safety practices followed to prevent fluid, fine metal chips, or abrasive particles from entering the eyes. If fluid is splashed into the eyes, immediately flush the eyes for 15 minutes with fresh water
WARNING: "Empty" containers retain residue (liquid and/or vapor) and can be dangerous. Do not pressurize, cut, weld, braze, solder, drill, grind, or expose such containers to heat, flame, sparks, or other sources of ignition; they may explode and cause injury or death. Do not attempt to clean since residue is difficult to remove, and even a trace of remaining material constitutes an explosive hazard. "Empty" drums should be completely drained, properly bunged, and promptly returned to a drum reconditioner. All other containers should be disposed of in an environ-mentally safe manner and in accordance with governmental regulations.
Additional important health and safety information on this product can be found in the Material Safety Data Sheet which is available online at www.exxon.com or by contacting Exxon Branded Lubricants, ExxonMobil Lubricants and Petroleum Specialties Company, North America Technical Services - MSDS, 3225 Gallows Road, Fairfax, VA 22037.
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