Cleaning with non-halogenated solvents.
Hermetically sealed solvent degreasing for use with DOWCLENE*, Purasolv** and hydrocarbons
Standard Features
:
Two
indirectly heated vacuum tight solvent storage tanks
Integrated vacuum distillation unit
Automatic (pneumatic) chamber door with PPM interlock
Integrated steam generator
Elimination of all exhaust stacks
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
Meets all international compliance criteria including domestic
German legislation and
EN12921 - exceeds requirements of EU1999/13/EC - the "Solvent Emissions Directive" and the
Solvent Emissions (England & Wales) Regulations 2004.
Wide range of standard sizes.
Options/Accessories:
Ultrasonic agitation
Pressure injection flooding
Additional swarf filtration
Fine filtration
Automatic basket loading
Additional boil down distillation
Automatic basket lidding
Spray or immersion inhibitor application
Basket programme recognition
Process Description
The
Multimatic FK series offers flexible programmable component
cleaning combining the benefits of zero atmospheric emission
technology coupled with the proven consistent capability of
DOWCLENE, Purasolv and hydrocarbons
Typical cycle:
Pre-Cleaning – Pressure in the treatment chamber is reduced to below 100 mbar. . The treatment chamber is sprayed with hot solvent from holding Tank 1 via spray nozzles. . Recirculating solvent provides an initial clean removing gross contamination from component parts which is then transferred directly to the vacuum distillation unit. The process of distillation separates soils from the solvent, isolating it in the still for removal when required. 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 T1 to fully immerse the components. This is essential when cleaning large quantities of small, tightly packed component parts and will also ensure that complex component 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 solvent distilled into T2 is sprayed 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 condenses onto the colder component parts providing a pure rinse and consequently heating them in readiness for the vacuum drying stage.
Vacuum drying - Rapid and effective drying is achieved by reducing the chamber pressure ensuring evaporation of the solvent from the component parts.
The “intelligent” distillation unit monitors solvent/oil concentrations and automatically enters boil down mode when the appropriate level has been reached. Residues are automatically transferred to the Safetainer waste system without operator input.
*DOWCLENE is a tradename of The Dow Chemical Company
**Purasolv is a tradename of Purac Biochem