By harnessing the high thermal energy of boiling water, the new Aqueous Degreaser from MecWash Systems effectively cleans and degreases the parts that normal aqueous systems, and in some cases solvent systems, cannot.
'In some applications it performs better than solvent degreasing'
Reduce costs, improve performance & protect the environment
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  Major development in aqueous degreasing
  By harnessing the high thermal energy of boiling water, the new Aqueous Degreaser from MecWash Systems effectively cleans and degreases the parts that normal aqueous systems, and in some cases solvent systems, cannot.

The system is the result of a two-year development project backed by a SMART Grant Award from the South West Regional Development Agency, and is the subject of a patent application.  The new MecWash Aqueous Degreaser has already proven effective at removing some of the most difficult and tenacious contaminants – including resins, greases, NDT inks, zinc stereate, lapping pastes and polishing compounds.

Operating at over 100°C in a fully sealed system, and using new cleaning chemistry developed by MecWash for the high operating temperature, heavy contamination is broken down and removed in just minutes. Subsequent vacuum drying is also rapid, giving a total cycle time of around 5 minutes for most applications.  The high operating temperature also reduces the viscosity and surface tension of the solution allowing it to penetrate into smaller holes than is achievable with normal aqueous cleaning methods.

Apart from addressing the difficult cleaning applications noted above – which can often leave solvent systems struggling – MecWash also believes there is a significant opportunity for its new system in the re-manufacturing industry.  Here, heavy grease and oil residues build up on components during several years in service and need to be removed before assemblies are dismantled for inspection and re-work.
  Single chamber design
  The new Aqueous Degreaser is based on the proven MecWash single chamber system design. Components are securely placed into a basket and pushed from a conveyor into a front-loading chamber, which can be supplied in different sizes to suit the size and quantity of parts that require cleaning. The complete wash, rinse and dry process is carried out automatically within a sealed and fully insulated system. There is only minimal loss of water vapour and energy from the system which keeps the operating costs low – as an example, the normal aqueous drying process using compressed air, blown air or hot air is not required on this system.

Both ferrous and non-ferrous parts can be cleaned through the new process without discolouration, attack or corrosion. Only low concentrations of organic chemistry are required to assist the high temperature cleaning process and protect the parts. This compares to traditional cleaning processes using corrosive cleaners that can result in the etching and corrosion of the parts, operational health & safety problems and effluent disposal issues. All of these problems are resolved by the new system.

Optional equipment includes particle filtration, typically between 10-100µm, oil separation and the Aqua-Save wash and rinse water recycling.  The latter continuously cleans and recycles the solutions to maintain performance and produces only a concentrated waste for disposal.

In light of the current Solvent Emissions Directive and the search for safer alternatives to trichloroethylene, the new aqueous degreasing system from MecWash provides a solution for the most demanding cleaning applications for which solvents have previously been considered the only option.
 
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