GUANLIN CNC oil mist filter cartridge, coalescing element for machining centres, grinders and EDM oil mist collection.
Coalescing oil mist cartridges with graded fibre structure that drain recovered oil back to the sump, holding stable airflow and 0.3 μm class efficiency in CNC machining and grinding.
Description
Oil mist from CNC machining, grinding and EDM is not ordinary dust. The droplets are sub-micron, they coalesce on the media and they blind a cartridge very quickly if the media is not designed for it. GUANLIN CNC oil mist cartridges use a graded fibre structure that drains coalesced oil back down to the housing instead of holding it in the pleats, so airflow and capture efficiency stay stable over a much longer service interval.
Why Choose GUANLIN CNC Oil Mist Cartridges
- Coalescing media — sub-micron oil droplets merge into larger drops that drain away instead of blinding the element.
- Stable airflow — pressure drop stays low across the service life, keeping machine extraction consistent.
- Sub-micron capture — 0.3 μm class efficiency protects operators and stops oil carry-over to the shop floor.
- Drain-back design — recovered oil returns to the sump rather than accumulating in the media.
- Fits common CNC mist collectors — standard diameters and lengths for most machine-tool extraction units.
- Custom lengths — non-standard element heights available on request.

Application Scenarios
CNC machining centres
High-speed milling with flood coolant generates continuous oil mist; coalescing media keeps the machine enclosure clear and the workshop air compliant.
Surface and centreless grinders
Grinding produces a heavy, fine mist that blinds ordinary cartridges within weeks. The drain-back design extends intervals substantially.
EDM and wire EDM
Dielectric mist and smoke are captured without the rapid pressure rise seen with non-coalescing media.
Screw machines and multi-spindle lathes
Continuous production means extraction must not degrade mid-shift; stable pressure drop keeps the machine within its airflow specification.
Sawing and cutting with coolant
Mixed mist and fine chips are handled by the graded structure.
Workshop-wide oil mist collection
Central systems benefit from the longer service interval and lower maintenance frequency.

Applicable Working Conditions
- Oil mist, coolant mist and smoke from machining
- Sub-micron droplet capture with drain-back
- Continuous production with stable airflow requirement
- Compatible with common CNC mist collector housings

Product Specifications
| Item | Specification |
| Type | Coalescing oil mist cartridge |
| Media | Graded glass fibre / synthetic coalescing media |
| Efficiency | 0.3 μm class, up to 99% |
| Outer Diameter | Standard CNC sizes, others on request |
| Length | Standard and custom |
| MOQ | 10 pcs |

FAQ
Q1. Why do standard cartridges fail on oil mist?
They hold the coalesced oil in the pleats and blind; coalescing media drains it away instead.
Q2. What efficiency can I expect?
0.3 μm class, up to 99% depending on the model.
Q3. Will it fit my mist collector?
It fits common CNC mist collector housings; send dimensions to confirm.
Q4. Does recovered oil return to the machine?
Yes, the drain-back design returns it to the sump.
Q5. MOQ and lead time?
10 pcs, 7–15 days.
Key Specifications
- Type: coalescing oil mist cartridge
- Efficiency: 0.3 μm class, up to 99%
- Media: graded glass fibre / synthetic
- Fits: common CNC mist collectors
- MOQ: 10 pcs





