SKF LubriLean Minimal Quantity Lubrication (MQL) for Dry Machining Processes Internal minimal quantity lubrication An aerosol is generated in the MQL equipment’s reservoir and fed through the rotating spindle or turret to the tool. With an optimal setting, the metered quantity of oil is completely used up without any residue being left. External minimal quantity lubrication Metered lubricant is atomized by compressed air in a spray nozzle. That produces microdroplets that make their way together with the carrier air to the friction point without any mist being formed. Conversion from wet machining to dry machining in the production process results in the following benefits: Cut costs Improve productivity Utilize a technological advantage • No need for cooling lubricants • No need for machine tool components like lubricant filters and cconditioning systems • No disposal costs for chips and cooling lubricants • No need to wash workpieces • Significant reduction of production time (30-50%) • Higher cutting efficiency • Tool lives increased by as much as 300% • Reliable control of production processes • Solutions for OEMs and retrofitters • Parallel use of wet and dry machining •

SKF LubriLean – Minimal Quantity Lubrication The path from wet to dry machining In many cases, the driving force behind the introduction of dry machining is the recognition that today workpiece-related costs for cooling lubricants can be several times higher than tool costs. Moreover, the handling of cooling lubricants is causing problems, including the burden they place on employers and the environment. An overall MQL system of the single-duct type consists of harmonized components that work together to lubricate the cutting area. In practice, that means the end user does not have to optimize...

SKF LubriLean – Minimal Quantity Lubrication Basics of minimal quantity lubrication With MQL, the lubricating between the tool and workpiece is done with a flow of air containing finely dispersed droplets of oil, a socalled aerosol. The systems described here contain a special aerosol generator that can produce aerosols with an oil droplet size of  0.5 µm. Thanks to this small size, the droplets of oil have hardly any inertia or rate of fall. That makes it possible to transport the aerosol over long distances, via sharp deflections or through high-speed rotating tool spindles without any notable...

SKF LubriLean – Minimal Quantity Lubrication Internal Minimal Quantity Lubrication (MQL) with DigitalSuper / Vario How it works A fine aerosol with an homogenous particle size of ~ 0,5 µm is produced in the reservoir from a lubricant and compressed air with a special nozzle system. Thanks to the small particle size, the aerosol passes through the rotating spindles of machining centers or through the winding ducts of turrets on modern turning centers without any demixing taking place en route. Dependable machining is assured by such loss-free transport. Modern machining centers with a large number...

SKF LubriLean – Minimal Quantity Lubrication External Minimal Quantity Lubrication (MQL) with Basic / Smart Spray nozzles The SKF LubriLean Basic and Smart minimal quantity lubrication system consists of a lubricant reservoir, one or more mixture regulation units and lubricant lines with spray nozzles. The aerosol required at the process point is produced at the nozzle outlet. The lubricant and required atomizing air are fed through coaxial lines from the minimal quantity lubrication system to the spray nozzle. The lubricating mixture is formed at the nozzle outlet by the Venturi principle. Carrier...

SKF LubriLean – Minimal Quantity Lubrication Applications of the SKF LubriLean Systems DigitalSuper Machining centers Turning centers The DigitalSuper 2 is available for use on machining centers with double spindles or turning machines with two turrets. Vario Turning, milling, drilling Special applications (e.g. multispindle machines) VarioPlus Turning, milling, drilling Retrofitting of turning and machining centers Also suitable for small tools VarioSuper Machining centers Turning centers Special machines Basic / Smart Drilling, milling, broaching, tapping, thread forming Universal milling machines...

SKF LubriLean – Minimal Quantity Lubrication Technical Data Metal housing Capacity [liters] Internal lubrication External lubrication Compressed air port [bars] Manual slide valve 24 V DC Manual slide valve Manual slide valve Visual filling level indicator Flow sensor Pressure monitoring Number of outlet ports Mounting position Level monitoring

SKF LubriLean – Minimal Quantity Lubrication Typ - Type : Bestell-Nr. - Order no. : Betriebsp. - Operating voltage : Baujahr - Constr. year : Serien-Nr. - Serial no. : ACHTUNG GEFAHR! In Betrieb stehen der Behälter und Teile des Gerätes unter Druck. Der Behälter darf weder geöffnet, noch dürfen Geräteteile entfernt werden! Vor Inbetriebnahme alle Anschlüsse auf sicheren Sitz und Dichtheit prüfen. Vor Arbeiten am Gerät oder an den angeschlossenen Systemkomponenten muss das Gerät druckentlastet werden. Für Inbetriebnahme, Betrieb und Wartung sind die Hinweise der Bedienungsanleitung unbedingt zu...

SKF LubriLean – Minimal Quantity Lubrication Compressed air connection for hose 7-8 mm diam. Filling level indicator Flow meter Oil drain screw Aerosol outlet (3x optional) with quick connector for tube 12 mm diam. Screw plug for manual filling hexagon socket 12 mm

SKF LubriLean – Minimal Quantity Lubrication

SKF LubriLean – Minimal Quantity Lubrication Basic Order No. UFB20- … (max. 8 lube points) Installation lines must be ordered separately (see page 13) Number of spray nozzles Reservoir capacity

SKF LubriLean – Minimal Quantity Lubrication Order No. UFZ.U00-128 Operating pressure max. 100 bars Pressure temperature diagram 136 Ball valve 3/2-way Order No. UFZ.U00-041 Operating pressure max. 100 bars 1) 1) see pressure temperature diagram