Providing Precision Lubricants and Lubrication Solutions


Way Oil: RPL-WO Series

Series Range:

• RPL-WO68
• RPL-WO220

Product Description:

The RPL-WO series of way oils are formulated using highly refined, hydro-treated paraffin base oils with special additives blended to meet the severe needs of way applications including milling machines, grinders and similar applications. The RPL-WO oils contain a tackifier which enables them to adhere strongly to sliding surfaces and to prevent lubricant from being squeezed off the heavily loaded ways.

Many slide and way lubricants are particularly vulnerable to the alkalinity of synthetic and soluble coolants and cutting fluids. For a way oil to be effective, it must remain on the metal surfaces. The RPL-WO oils are carefully formulated to ensure a continuous film of protection on sliding surfaces, despite these harsh conditions.

The RPL-WO oils are designed with a friction modifier to prevent the slick-slip motion and chatter that often occurs in machine ways. This erratic motion is generally due to the starting friction encountered at each end of each back-and-forth movement whenever the ratio of the coefficient of static (starting) friction is lower that kinetic (running) friction. This friction modifier allows machines to start easily and move smoothly throughout the range of motion.

Typical applications include slides and ways on milling, horizontal and vertical machines, drilling machines, screw machines, planers, grinders, shapers, lathes and blotters. Also effective for motor and fan bearings, turbines, hydraulic and circulating systems and for mist, wick, drip-feed and hand-oiling, especially whenever there is the presence of harsh coolants, soluble oils and cutting fluids.

Features and Benefits:

• Highly resistant to synthetic coolants, soluble oils and cutting fluids

• Stick-slip additive improves end finish

• Excellent protection against corrosion, including ferrous copper alloys

• Allows for close tolerance machining

Typical Operating Properties:

ISO Grade 68 220 --
Colour Amber Amber --
68.9 cSt 209.1 cSt ASTM D445
9.1 cSt 18.8 cSt ASTM D445
Viscosity Index 110 105 ASTM D2270
Flash Point 210C / 410F 235C / 455F ASTM D92
Pour Point -15C / 5F -12C / 10F ASTM D97
Rust Test Pass Pass ASTM D665
Copper Corrosion
Pass Pass ASTM D130
Stick / Slip Ratio 0.71 0.69 --
Thermal Stability
 • Neutralization No. (Tan)
 • Precipitate (mg/100mL)
 • Copper Rod Rating
 • Steel Rating



* Please note: The information, data and tables contained in this website have been carefully edited at the time of publication. However, no responsibility for possible errors or omissions can be assumed. We recommend contacting our Application Support Staff to discuss your specific requirements. We are constantly updating our products therefore technical data and specifications may change at any time without notice. 08/2017

Method of Application:

No special precautions are required. Follow regular maintenance instructions as provided with original equipment. RPL-WO oils meet or exceed the performance requirements of:

• Cincinnati Milacron P-47 (RPL-WO68)
• Cincinnati Milacron P-50 (RPL-WO220)

Available Container Sizes:

Size Metric US Imperial
Gallon 3.79 L / 3.4 kg 1gal / 7.5 lbs
Pail 18.93 L / 16 kg 5 gal / 35 lbs
Keg 56.78 L / 54 kg 15 gal / 120 lbs
Drum 208.20 L / 181 kg 55 gal / 400 lbs
* NB: Sizes and weights are approximate.



Did you know?

"Stick-slip" and chatter is a major cause of scrap and product rejection in milling and machining processes. 


Material Safety
Data Sheets

RPL-WO Series




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Davley Darmex Precision Lubricants, 2011