Filtration with additives

Fully automatic filter FA02/00 – FA140/14

Fully automatic filters are designed for the automatic cleaning of cooling lubricants. They are used in:

  • Honing machines, grinding machines, metalworking lathes, milling machines

  • Machining centres

  • Hardening plants

  • Washing plants

The contaminated cooling lubricant is introduced via an inlet distributor onto a filter fleece lying in a trough. Through the force of gravity, the coolant runs through the fleece into the liquid tank below the belt filter. The dirt particles in the cooling lubricant are filtered out by the filter fleece, which leads to sludge cake formation. This causes a reduction in the permeability of the filter fleece and so an increase in the liquid level above the filter trough. An adjustable float switch controls the further transport by electric motor of the filter fleece at an increasing liquid level. The dirty filter fleece is thus automatically discharged, depending on the quantity and impermeability of the contaminants.

The contaminated filter fleece is fed into a sludge box at the end of the fully automatic filter and can be removed without interrupting the filtering process. By providing an upstream magnetic filtering cylinder, ferritic dirt particles can be separated on the belt filter prior to the introduction of the liquid, which can reduce fleece consumption considerably.

  • Sturdy steel plate design

  • Closed fleece storage box

  • Continuous wire mesh belt as a filter fleece layer

  • Discharge via bottom of filter

  • Worm-gear or synchronous motor as drive

  • Low filter fleece indication (optional)

Continuous operation
Easy installation
Low maintenance
Longer service life of the cooling lubricant
Filter fleece quality adaptable to production process

Drum filter IBF00 – IBF50

This type of filter is suitable for use in all machining processes where small chips and fine particles from liquids, including those with a higher viscosity, need to be filtered out. Except for machining centres, the drum filter has proven itself in grinding machines, honing machines and in washing water treatment systems. In addition to being used as a stand-alone system, this filter can also be used for the central supply of several machines.

Two disc wheels form the counter-bearing for the rotating support belt. A motor pulls the filter fleece in between them. The filter fleece thus forms a circular filter tank that is tight on both sides. The coolant is supplied calmed via a flat distributor. The incoming liquid flows in the direction of the filter fleece transport and ensures that the fleece is kept clean in the inflow area and that maximum permeability is ensured. In the calmed liquid zone, the particles to be filtered settle and form a filter cake that increasingly acts as a filter aid and also retains very small particles. The liquid level in the filter trough rises once the filter fleece is saturated. When the maximum liquid level is reached, the level switch turns the geared motor on. New filter fleece is automatically drawn in, while the fleece soaked with sludge is discharged on the opposite side.

  • Sturdy steel plate housing

  • Inlet via distributor box

  • Discharge via bottom of filter

  • Steel honeycomb band as a filter fleece layer

  • Worm-gear motor as drive Low filter fleece indication (optional)

  • Low filter fleece indication (optional)

Continuous operation
Small footprint
Low maintenance
Reduced filter
fleece consumption
Longer service life of the cooling lubricant
Filter medium quality
adaptable to production process

Vacuum filter VMF05-VMF11

The KÜMA vacuum filter brand is suitable for the continuous cleaning of contaminated cooling lubricants as they occur when machine tools are used. It cleans liquids from industrial cleaning plants and dedusting systems. Recommended for use with high flow rates as the flow rate is increased three to four times with the same filter area and with low filter medium consumption compared to a gravity filter.

The contaminated coolant flows from the machine tool into the contaminant part of the filter. A vacuum pump draws the cooling lubricant through the filter medium into a clean chamber, whereby the dirt particles are retained by the filter medium. The dirt cake forming on the filter medium generates an increasing negative pressure in the clean chamber. When a preset value is reached, a contact pressure gauge initiates regeneration and the dirt cake is discharged without interrupting the cooling lubricant supply. New filter medium is drawn in at the same time.

  • Continuous operation

  • Small footprint

  • Low inlet height

  • Low maintenance

  • Longer service life of the cooling lubricant

  • Filter medium quality adaptable to production process

Continuous operation
Small footprint
Low inlet height
Low maintenance
Longer service life of the
cooling lubricant
Filter medium quality
adaptable to production process