Castrol - Industrial

Castrol Ilocut EDM 401 is a low-viscosity, low-aromatic dielectric fluid designed for finish and semi-finish electrical discharge machining (EDM). It provides high metal removal rates, low electrode wear and outstanding surface finish.

Applications

• Finish and semi-finish EDM operations
• Machining of ferrous and non-ferrous metals
• Precision components, moulds and toolmaking
• Systems with pressure circulation or gravity filtration
• Note: Not suitable for roughing operations or special heavy-duty EDM processes.

Advantages

• Low viscosity ensures fast flushing of the spark gap
• Excellent surface finish and stable machining conditions
• Low electrode wear
• Good filtration behaviour for clean systems
• High oxidation stability for long fluid life
• Low mist and pleasant odour
• Bright, clear appearance for optimal visibility

Operating notes

• Clean and flush the system before converting to Ilocut EDM 401.
• Avoid contamination with hydraulic or lubricating oils.
• Maintain proper filtration to avoid sludge and particle build-up.
• Follow EDM machine manufacturer’s recommendations.

FAQ – Frequently Asked Questions

What is Ilocut EDM 401 designed for?
For finish and semi-finish EDM operations. It is not intended for roughing.

Can it be used in my existing EDM machine?
Yes, but the system should be cleaned and flushed before filling.

Why is low viscosity beneficial?
It improves flushing, reduces heat build-up and increases machining stability.

How does EDM 401 improve surface finish?
Its stable discharge behaviour and low electrode wear produce very fine surface finishes.