Three factors are relevant for designing suitable filtration technology in the machining of metal workpieces:
- Type of machining: turning, milling, sawing, drilling, etc.
- Application of coolants: oil, emulsion, MQL
- Materials: grey cast iron and high carbon steel, light metals, non-ferrous metals, as well as alloys
The machinery area must be kept clean and it must be ensured that the contaminated air cannot escape.
Additional factors to be considered in the design:
- Coolant pressure
- Internal dimensions of the machine
- Size of the machine opening (for loading of workpiece, tool exchange)
- Harmful characteristics of materials to be separated
A variety of solutions depend on the process and the coolant used:
Oil: AERO oil mist separator;
Coolant: ENA coolant mist separator;
MQL: TR-1 dry separator or VARIO with FLEXI-P;
Dry separation: VARIO dry separator or UNI-STAR
Another vital consideration is whether the extracted air can be recirculated back into the production area.
The capture elements can be designed or optimized individually based on a flow simulation to significantly improve the reliability of the entire system.
Brochure "AERO oil mist separator for cooling lubricant aerosols"
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Set and guidelines
TA-Luft: Air pollution control - emission standards >>
VDI 2262-3: Air quality in the workplace - clean air recirculation >>
TRGS 900: Occupational limit values in the workplace >>
DGUV-Regel 109-002 (formerly: BGR 121): Workplace ventilation >>
1999/92/EG (formerly: ATEX 137): Explosion Protection Directive for Operators >>
2014/34/EU (formerly: ATEX 114): Explosion Protection Directive for Manufacturers >>
EN 1127-1: Explosive environments >>
TRBS 727: Avoiding ignition hazards created by electrostatic charges >>
VDI 2263-6: Fire and explosion protection for dust extraction systems >>