OUPC Series Liquid Separators

The OUPC series liquid separator is a Gram Clean Air compact multi-stage filter, specifically designed for installation on machining tools that use coolants and lubricants. The unit separates oil mist, emulsion mist, minimum quantity lubrication (MQL) vapours and oil smoke directly from the machine's air flow before it enters the ventilation or extraction system. The OUPC differs from the OUF and OUK series with its 5-stage filtration system, which ensures a separation efficiency of at least 99.95% of all coolant oil particles. The first two filter stages separate droplets and mist, the third and fourth stages provide fine filtration through a G104A fibreglass filter, and the final stage is a HEPA H13 filter that removes particles down to 0.1 µm. Separated liquid particles are automatically returned to the machine when required. Thanks to its compact design, the OUPC is suitable for installation directly onto the machine on both the right and left sides, without the need for additional space. The unit can also be used in central extraction systems, where the air flow from several machines passes through a common filtration system. Key benefits: 5-stage filtration – separation efficiency of min. 99.95% of coolant oil particles. Final stage HEPA H13 filter – removes particles down to 0.1 µm. Filtration through a PPi35 porous filter – 50% better efficiency than an aluminium grease filter. Automatic liquid return to the machine (optional). Compact installation directly onto the machine – right or left side. Requires minimal maintenance – all filters replaceable via the front hatch. A liquid container with a ½" water collector is located beneath the first two filter stages. Applications: CNC milling and turning centres with coolant emulsion. Minimum quantity lubrication (MQL) processes. Oil smoke machining operations (gear cutting, grinding). Production lines with strict emission requirements (< 1 mg/m³). Central extraction systems for multiple machines.

OUPC series liquid separators are compact multi-stage filtration units for the removal of coolant and lubricant mist, installed directly onto metalworking machines. The unit is suitable for filtering oil mist, emulsion mist, minimum quantity lubrication (MQL) and oil smoke, and separates at least 99.95% of all coolant and lubricant particles. Separated particles can be returned to the machine when required.

Key benefits

• The 4-stage separation principle ensures optimal filtration regardless of the coolant and lubricant type
• A large surface area on the washable pre-filter and the self-draining filter cartridge ensure a long service life and low pressure loss, reducing energy and filter replacement costs
• The horizontal design is particularly compact and space-saving – suitable for installation directly onto the machine even where there are height restrictions (e.g. when using a crane)
• The version with integrated fan (OUPC 510/1010) eliminates the need for ducting on the clean air side, where recirculation is permitted
• Fast and easy maintenance thanks to the hinged intake module
• The 3 primary filter stages can be monitored with differential pressure gauges
• Removing oil mist directly at the machine reduces health and slipping risks, fire risk, the risk of damage to electronics, and cleaning and maintenance costs