Silica in gear oil
Cement dust and rock fines grind through bearings and gear teeth.
Cement And Mining
Gear and hydraulic oil filtration for cement and mining plants
Dust gets into every oil system on a cement or mining site. We fit high capacity filtration for thick gear oils.
What goes wrong
Blinded breathers
Vent caps blind quickly, so the gearbox breathes dust through its seals.
Thick oil and cold starts
VG 320 and VG 460 need sizing for viscosity at operating temperature.
Rebuilds treated as normal
Wear metals rise before each failure; the rebuild interval is a contamination interval.
The cost of repeated rebuilds
A gearbox rebuild takes the line down with a crane, spares and labour. Two in three years is paying twice for contamination.
The business caseWhat we fit
Solids loading drives sizing, so we ask about dust as much as the gearbox.
High capacity fine filter
Inserts matched to VG 320 or VG 460 oil and heavy solids.
Offline units on hydraulics
Crusher and stacker systems, with water removal for the monsoon.
Flushing after a rebuild
Gets the new oil clean before the gearbox goes back on load.
Project Profile
Kiln drive gearbox, cement plant
900 litres of VG 320 with silicon and iron rising. A filter and breather flattened the wear trend; the gearbox has not been opened since.
A typical project: customer not named, figures indicative. Verified site data available on request.
Case studies
Before
After
Common questions
Will a filter work on VG 460 gear oil?
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Yes, with the right insert and flow sized for the viscosity at operating temperature.
How often will inserts need changing?
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Often at first while the backlog comes out, then it settles. Inserts change on differential pressure.
Can it be fitted with the gearbox running?
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Usually yes, through existing drain and fill points, with about an hour of access.
Technical Enquiry
Request a gearbox assessment
Send oil grade, tank volume, temperature and recent reports. We will size the unit and state insert life.
- We reply within one working day.
- We size the unit for your tank and oil, not from a catalogue.