Other Fluids
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www.castrol.com/GPS
Product Data
Castrol
®
Magna
®
SW D
[
Replaces Castrol Way Lubricant]
July 2017
Castrol Magna SW D is specially formulated for the lubrication of slideways on
machine tools. These oils are fortified with selected oiliness, extreme pressure
additives and a special material to impart tackiness and adhesiveness.
Magna SW D lubricants are noted for their ability to overcome the stick-slip
motion ordinarily associated with slow moving tool parts. They reduce machine
tool carriage chatter and possess the necessary adhesive characteristics to prevent
squeezing out of the lubricant.
Features and Benefits
Castrol Magna SW D offers the following user benefits:
• Outstanding demulsifying properties to help prevent soluble oil emulsions on plastic slideway surfaces.
• Avoids downtime and expensive slideway repair or replacement.
• Exceptional resistance to stick slip – helps to ensure highly accurate and repeatable machining.
• High quality output is maintained.
• Protects metals against staining and corrosion.
• Oil-wetted surfaces remain in good condition.
• Avoids downtime and expensive slideway repair or replacement.
• Highly filterable – filters in oil supply remain unblocked
Typical Analysis
Name Method Units 32 68 100 150 220
Density @ 15°C / 59°F ASTM D4052 kg/m³ 870 880 890 890 890
Kinematic Viscosity ASTM D445 mm²/s
@ 40°C/104°F 32 68 100 150 220
@ 100°C / 212°F 5.4 8.7 11.1 14.5 19.2
Viscosity Index ASTM D2270 -- 102 99 98 98 98
Flash Point ASTM D92 °C/°F 206/403 232/450 232/450 232/450 249/480
- open cup method
Rust test ASTM D665A pass pass pass pass pass
- distilled water (24 hrs)
Rust test ASTM D665B pass pass pass pass pass
- synthetic seawater (24 hrs)
Copper corrosion ASTM D130 Rating 1b 1b 1b 1b 1b
(3 hrs@100°C/ 212°F)
Brugger test DIN 51347 N/mm
2
-- 44 -- -- --
Four Ball Wear test ASTM D2266 mm 0.3 0.3 0.3 0.3 0.32
Wear Scar Diameter (40 kgf/75°C/1200 rpm/1 hr)
Four Ball Weld Load test ASTM D2783 kgf 170 180 180 190 200
- Weld Point
Stick-slip ratio Cincinnati Ratio 0.74 0.74 0.74 0.74 0.74
Lamb test
Cincinnati Lamb -- -- P-53 P-47 -- -- P-50
Specification
H 7
