Accessories - filter technology

Redosing and return pumping station

Redosing is used for mixing in homogenous cooling lubricants, specifically emulsions. Optionally, water softening is also possible.


Mode of function

First of all, fresh water is supplied to the system (1). An upstream desalination (2) process enables the pH value of the water to be adjusted and ultrafine cleaning to be carried out. The pumping station (3) pumps the backwash water from the desalination to the drain. The prepared water is transported to the mixing station (7) and the required amount of cooling lubricant concentrate (4) is mixed in. The finished emulsion can be added to the process (8).

The return pumping stations are individually adapted to customers requirements.

return pumping stationreturn pumping station

Return pumping station

Coalescence separator

The coalescence separator is used when liquids with low levels of particulate contamination have to be separated from surface oils and emulsified oils. The coalescence principle is employed here. It is particularly suitable for use on central liquid tanks.

Coalescence separatorCoalescence separatorCoalescence separator

Mode of function

A special pump and a floating extraction device extracts liquid from the surface of the contaminated medium. This passes through the infeed into the oil separator, and is passed through a continuous-flow separation plate system. This system is filled with plastic bodies that are located in a collecting cage. The oil particles contained in the liquid collect on the plastic bodies and coalesce into larger droplets which rise to the surface on reaching a sufficient size. The oil collected on the surface is removed separately by an overflow system. Separated from the oil by a bulkhead, the drain for the purified medium is located at the end of the continuous-flow separation plate system. This process enables a purity level of up to 99% to be achieved. The purified liquid and the oil are removed separately.


• Special pump does not swirl up the liquid any further
• 99% resistance to chemicals
• Simple and trouble-free installation
• Fully automatic operation
• High flow rate
• 99% separation of surface oils possible
• Compact design


Data sheet

The service life of cooling lubricants is significantly reduced by lack of oxygen, external oils and ultrafine particles. Viruses, yeasts, fungi and bacteria grow and give rise to skin diseases, allergies and unpleasant odours.


The input of air from our micro-aerator stabilises your cooling lubricant and thus increases the quality. By means of the special ceramic aeration plates, ultrafine air bubbles float through the cooling lubricant, re-enriching it with fresh oxygen. The unpleasant odours disappear, the tendency of your employees to develop skin diseases is counteracted and the biobalance of the cooling lubricant is re-established.


Simple installation and operation allow our micro-aerators to be adjusted quickly and individually to the needs of your cooling lubricant. As a result of the floating air bubbles, external oils and ultrafine particles in solution are carried to the surface from where they can be removed.

In this way, the performance of your cooling lubricant is increased, as is the service life of your tools and machines and the health of your employees.

Technical parameters

• Basin size: up to 300 l
• Immersion depth: up to 750 mm
• Voltage: 230 V / 50 Hz / 5 W
• Working temperature: 55°C
• Working range: pH 4 - 12
• Ceramic aeration body: 1 item
• Air line to the aeration body: 3 m
• Dimensions (L x W x H): 310 x 83 x 62 mm
• Weight: 2.4 kg

For additional information about the filter technology, please refer to our brochure or contact us in person. You can use the following contact possibilities for this. We look forward to presenting you with our offer.

Brochure - filter technology

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