Castrol Alusol RAL BF is a semi-synthetic, water-miscible premium metalworking fluid designed for demanding machining operations. It is optimized for aluminium alloys and is also suitable for low to medium alloy steels.
The balanced formulation supports stable processes, good surface finishes and reliable tool life. The fluid can be used in central systems as well as single machines and is suitable for a wide range of cutting operations.
Applications
- Machining of aluminium alloys
- Low to medium alloy steels
- Central systems and single machines
Typical operations
- Grinding
- General machining (milling, turning)
- Drilling
- Reaming and tapping
- Broaching
Recommended in-use concentration (guidelines)
- Grinding: 6–7 %
- General machining: 6–8 %
- Drilling: 7–9 %
- Reaming / tapping: 8–10 %
- Broaching: 8–10 %
Recommended water hardness range: 3–45 °dH. From around 6 % concentration, the product provides good corrosion protection for machine tools.
Technical data (typical values)
- Appearance (concentrate): amber
- Density at 20 °C: 952 kg/m³
- Mineral oil content: 44 wt.%
- Emulsion appearance: milky
- pH value (6 %): 9.0
- Refractometer factor: 1.0
- Mini-lab factor: 1.4
Product Questions & Answers (FAQ)
What is this metalworking fluid used for?
For water-miscible metalworking applications, especially aluminium alloys and low to medium alloy steels – in central systems or single machines.
Which concentrations are typical?
Depending on the operation, typical guideline ranges are about 6 % to 10 %. Always adjust to process, water quality and application.
Is it suitable for central systems?
Yes, it can be used in central systems as well as single machines.
Which water hardness range is supported?
A water hardness range of 3–45 °dH.
