RB Solvent Series hermetically sealed solvent degreasing SFK Series machines - cleaning with non-halogenated solvents like Class III A hydrocarbons, are equipped with following standard features:
- Two indirectly heated vacuum solvent storage tanks
- Integrated vacuum distillation unit
- Automatic (pneumatic) treatment chamber door with safety interloc
- Integrated steam generator
- Elimination of all exhaust smokestacks
- Standard 200 micron filtration
- Up to 10 cycles per hour
- Vacuum tight treatment chamber with the option to programme static, rotating or oscillating component baskets
- PLC control system for concise programming - easy to use operator interface
This line of machines can be supplied in a wide range of sizes, with following options and accessories:
- Ultrasonic agitation
- Pressure injection flooding
- Additional swarf filtration
- Fine filtration
- Automatic basket loading
- Additional boil down distillation
- Automatic basket lidding
- Spraying or immersion inhibitor application
- Basket programme recognition
The SFK series offers flexible programmable component cleaning combining the proven consistent cleaning capability of non-halogenated solvents with the benefits of zero atmospheric emissions technology.
- Pre-Cleaning - Pressure in the treatment chamber is reduced below 100 mbar. Through spray nozzles the treatment chamber is sprayed with hot solvent from holding Tank 1. Re-circulating solvent provides an initial cleaning, by removing gross contamination from parts, then is transferred directly to the vacuum distillation unit. The process of distillation separates soil from solvent, isolating it in the still for removal when necessary. Cleaned and purified solvent vapour is condensed and transferred to holding Tank 2 for use later in the process. Vapour is also made available for final cleaning.
- Immersion Cleaning - The chamber is flooded with hot solvent from Tank 1 to immerse completely the parts. This is essential when cleaning large quantities of small, tightly packed parts and will also ensure that complex parts geometries such as fine threads and blind holes are thoroughly flushed out to remove all traces of contamination, including particulate matter. The options of high pressure solvent injection flooding and (or) ultrasonic agitation are also available for high/difficult levels of contamination.
- Rinsing - Clean distilled solvent is sprayed from Tank 2 into the treatment chamber to give the parts a final liquid rinse.
- Vapour rinsing - Hot solvent vapour is released into the treatment chamber from the distillation unit. This vapour condenses on the surface of the parts which are colder, providing a pure rinse and consequently heating them in preparation for the vacuum drying stage.
- Vacuum drying - Rapid and effective drying is achieved by reducing the treatment chamber pressure, ensuring evaporation of the solvent from the parts.
The "intelligent" distillation unit monitors solvent/oil concentrations and automatically enters boil down mode when the appropriate level has been reached. Residues are then automatically transferred to the special waste transportation system, without any need for operator involvement.