CASTROL MAGNA SW B 150
Castrol Magna SW B 150 (formerly Castrol Magnaglide B) is a high-viscosity CGLP slideway oil designed for heavy-duty machine tools. It provides excellent adhesion, reliable wear protection and outstanding demulsifying performance. ISO VG 150 is ideal for vertically oriented guideways and high-load slideway systems.
Applications
- Heavy-duty slideways, specifically vertical guide systems
- Machine tools with slow feeds and high surface pressures
- Roller-guided slides and heavy spindle guides
- Oil-lubricated milling heads and tool slideways
User Advice
- High viscosity ensures exceptional film stability under heavy load.
- Prevents stick-slip, ensuring smooth feed motion.
- Excellent demulsibility towards water-miscible coolants.
- Avoid mixing with zinc-containing oils.
Advantages
- Maximum adhesion – perfect for vertical guideways
- Excellent coolant separation (demulsibility)
- Effective wear and corrosion protection
- Smooth, stick-slip-free operation
- Long lubricant life in machine tools
- Stable lubrication film under high pressure
Typical Characteristics
- ISO VG: 150
- Density @15 °C: approx. 890 kg/m³
- Kinematic viscosity @40 °C: approx. 150 mm²/s
- Kinematic viscosity @100 °C: approx. 14.5 mm²/s
- Flash point (COC): approx. 240 °C
- Pour point: approx. -27 °C
FAQ – Castrol Magna SW B 150
Where is Magna SW B 150 used?
In heavy-duty machine tools and on vertical slideways requiring strong lubrication films.
Why a high-viscosity slideway oil?
Higher viscosity ensures excellent film stability and adhesion under high load.
Does it separate coolants reliably?
Yes, it has outstanding demulsifying characteristics.
Does it prevent stick-slip?
Yes, even on heavily loaded vertical guideways.
Can it be mixed with other oils?
Not with zinc-containing oils.
