Precoat filter
Fine coolant filtration down to 5 µm
Contaminated coolants can cause tool wear, quality defects and machine downtime. KÖBO ECO>PROCESS precoat filters remove particles down to 5 µm and return the cleaned coolant to the production process. This can extend tool life by up to 50% and reduce process costs.
Fine filtration
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Grinding sludge
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Coolants
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Oil Filtration
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Coolant recirculation
Comparison
When a precoat filter is the better choice
Belt filter systems remove coarse and fine chips as well as other particles, but generally do not achieve filtration in the lower micron range. Magnetic filters are suitable only for ferromagnetic particles. Precoat filters also capture fine, non-magnetic particles and achieve filtration fineness down to 5 µm. They are therefore particularly suitable when high surface quality, long tool life and consistent coolant cleanliness are required.
Request a consulationSpecifications
Technical specifications of the precoat filter
Filter area [m²]
10.0-67.0
Flow rate [l/min]
300-4.000
Filter fineness
down to 5 µm
Scalable capacity
Higher system capacities can be achieved by connecting multiple filters in parallel
Advantages of our precoat filters
Ultra-fine filtration
KÖBO ECO>PROCESS precoat filters achieve filtration fineness down to 5 µm, reliably removing fine particles from the coolant.
Longer tool life
Clean coolant can extend tool life by up to 50%. Fewer tool changes mean lower costs and more machine uptime.
Consistent machining quality
Clean coolant reduces dimensional deviations and surface defects. This helps components meet dimensional and quality requirements even in high-volume production.
Reduced coolant consumption
Our precoat filters return cleaned coolant to the process at a high level of purity, extending its service life. This significantly reduces the need for fresh fluid. The compressed-air-assisted backflushing process uses only coolant already present in the filter dome, so no additional water is required. This reduces operating costs and waste volumes.
Easy disposal
The filter aid binds the separated particles in a solid filter cake. The filter cake can be discharged from the system in a controlled manner and disposed of properly.
Continuous operation
Automatic regeneration removes saturated filter material without manual intervention. This enables largely continuous filtration, even in three-shift operation.
Background
How precoat filters can reduce operating costs
A precoat filter uses a support medium on which filter aids such as diatomaceous earth, cellulose, perlite or silica gel form a stable filtration layer. This precoat layer retains particles down to 5 µm and helps maintain consistent coolant cleanliness. Once the layer is saturated, the filter is automatically regenerated and a new precoat layer is applied. This can extend tool life and reduce the need for fresh fluid..
Without adequate coolant filtration, the following problems can arise during production:
Tool wear
Fine particles can damage cutting tools and shorten their service life.
Loss of machine performance
Deposits in pipes and pumps can reduce the flow rate and impair system performance.
Quality issues with components
Contaminated coolant can cause dimensional deviations and surface defects.
High coolant consumption
More frequent coolant replacement increases the demand for fresh fluid.
Rising operating costs
Frequent tool changes, higher disposal costs, and unplanned downtime can increase production costs.
Use
Applications of precoat filters
Precoat filters are used wherever coolants must remain consistently free of fine particles:
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Grinding processes: Separation of fine grinding sludge with a high liquid content.
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Hard machining: Maintaining consistent surface quality under demanding machining conditions.
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Machining: Coolant filtration, for example in bypass flow for bath maintenance or in filtration systems for production lines with high chip loads.
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Central filtration systems: Coolant filtration for supplying multiple machines.
In addition to coolants, precoat filters can also be used to filter oils, aqueous solutions and water, as well as in rolling and pressing processes.
Cost-effectiveness
How precoat filters can reduce operating costs
A precoat filter can reduce operating costs in several ways. Clean coolant can extend tool life by up to 50% and reduce the number of tool changes required. At the same time, filtration extends coolant service life and reduces the need for fresh fluid. The actual cost savings depend on the application, particle load and operating conditions.
Request a consulationContact
Discuss your precoat filtration requirements
Are you planning a new coolant filtration system or looking to modernise your existing equipment? Talk to us about your application. We develop a precoat filtration solution tailored to your production requirements.
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