Introduction: Automotive
Why are Magnet Filters used? Materials Recently the materials used in automotive are changing from steel through to Cast iron, this reduces vibration in the engine and also reduces cost to manufacture. . Production issues arise with the filtering of the coolants and oils accompanied by this change. Traditional steel slat, screw and media Filter/Separation methods used to remove the particulate are reasonably good with steel chippings ,but do not work well with the fine cast iron particulate.
Why are Magnet Filters used? Major Problems. Without MAGNETIC filters the small particulate continues to circulate, in the system causing serious issues in production with:Product Surface Finish, The cast iron dust continues to build in coolants causing scratches and imperfections on the parts being produced. Product Sizing / Accuracy During in-process inspection the particulate can affect the sizing, interfering with the gauging of the parts and consequently accuracy. Cleanliness In automotive the final wash is an important part of the process. In many situations when the cast particulate builds in the process line a transfer of contamination follows closely behind. This can contaminate cleaning stations, causing issues with finished goods.
Why are Magnet Filters used? Machines Existing filtration systems cannot contain/or efficiently filter the fine cast iron particulate, this can result in the following: •This initially shows as settlement in the coolant tank as the media allows the particulate to pass through to be recycled into the process. •Higher Media cost s are also seen due to the ‘quick’ blinding of the paper. •Damage to the machines pumps, slide ways, spindles and cutters. •Clogging and wear of the grippers and clamping devices is more apparent as the level of contamination increases. •Increased Coolant and oil cost when the contamination levels become higher in the fluid , speeding up bacteria build up, this then requires the oils to be replaced sooner.
Location for magnetic filters From the machine return to tank •Ideal position for the filter. •Collects particulate prior to settling tank. •Saves cost on Media •Small systems work well with Magnet roll or Filtramag. •Usually Automag cannot be used as the flow is only gravity with no pressure.
Location for magnetic filters Offline System Usually used to bolster an existing system, this can be done between the dirty and clean tank if a pump is available. Recirculation of the fluid in the tank using an external pump through a filter. This will have an effect of ‘polishing’ the coolant / oils. We would offer: (Smaller Systems) Filtramag FM1.5M, FM2.5 (Larger systems) Automag range The above would need to be supplied with an external pump and control. (Large Systems with contamination reclaim) Automag Skid range
Location for magnetic filters Tank to Machine. This will require some consideration as to •Flow rates •Contamination levels •Plant utilization
Location for magnetic filters Washing Stations The wash station is the last and one of the most important of the process Providing a clean solution to the wash heads is key to the cleanliness of the components
Products supplied for this application range from magnet baskets for the drain back to the tank. Micromag – Automag Dependant upon application.
Automotive applications
Skid elevated to operational height
Pipe connections showing fluid in, clean fluid back to process and fluid after reclaim
Contamination reclaim after purging operation
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