Knoll Maschinenbau GmbH – Messe

GrindTec 2018 – For the cleanest possible cooling lubricant

In superfinishing, requirements for precision and surface quality are increasing constantly. The finer the chipping, the greater the share of superfine particles in the grinding oil, which in turn endangers the quality of the processing results. KNOLL Maschinenbau will demonstrate at GrindTec 2018 how it is possible to break this spiral with state-of-the-art filter technology.

GrindTec 2018 – For the cleanest possible cooling lubricant

KNOLL Maschinenbau GmbH - Feinstfilter MicroPur® 240 B|AK 5

The superfine cleaning of grinding oils and other cooling lubricants is indispensable for high-quality grinding results. This task area within carbide metal, high-strength steel, and now also casting processing is the domain of the modularly-structured MicroPur® filter from KNOLL Maschinenbau, Bad Saulgau. With it, degree filtration smaller than 3 µm can be achieved, and thanks to its special design, it works without filter consumables, which contributes significantly to its great economic efficiency.
 
For these reasons, the MicroPur® superfine filter has proven itself over and over again – from the smallest standard model, the MicroPur® 120, which contains two backflushable filter elements for a filter capacity of approximately 120 liters, to individual systems in 240 and 480 liter sizes, to individually configured, central filter systems for entire production areas. KNOLL offers an automatic maintenance-free desludging system (AK) as an integrated component for each size of these filter systems. It separates oil and chips and conveys the latter into any container. The oil is fed back into the machine.
 
At the KNOLL trade show booth at GrindTec 2018 (Hall 5/5110), the Swabian filter specialists will present the current models. They will demonstrate a system with shortened container and a sample MicroPur® 480 M|AK 25 filter module, which can filter a maximum of 480 l/min. In large systems, up to forty such modules can be combined. Therefore, the cooling lubricant volume of 19 m3/min is more than enough for 250 machines.
 
With the MicroPur® 240 B|AK 5 superfine filter, which will also be presented at the KNOLL both, the "B" stands for bypass operation. With respect to its outward appearance and dimensions, it is nearly identical to the standard MicroPur 120|AK 5 system, however it is not suited for the direct supply of a machining process. Instead, it provides additional bath care for existing systems whose filters alone are not in a position to filter out the fine particles. The MicroPur® bypass systems are functional as stand-alone units, that is, without interface connections to or interventions into existing controllers. Therefore, they can also be operated easily on other manufacturers' systems.
 
Unique: KNOLL combines the MicroPur® superfine filter in every size with an appropriately-dimensioned AK sludge concentrator, which ensures automatic sludge discharge Therefore, no manual interventions are required and filter systems can be run without any operators. If necessary, KNOLL also offers to integrate additional sludge drying.At GrindTec 2018, KNOLL will also display the VL vacuum filter, a high-performance filter for cleaning cooling lubricants during chipping working processes, which can also be used for fine processing and superfinishing. In addition to the "filter" function, the VL vacuum filter offers a "drying" function for recovery of the valuable cooling lubricant and reduction of disposal costs. Thanks to its demand-controlled filtration, it is especially energy-efficient. It can be operated with or without filter consumables and is suitable for filtering water-miscible and non water-miscible cooling lubricants. It is used both for individual systems and for modularly-structured central systems.
 
Furthermore, KNOLL will also exhibit a state-of-the-art CA 100 centrifuge, whose proven technology plays a large role in grinding oil cleansing. In many filter systems, it handles bath maintenance and prevents the concentration of fine particles. This system technology is also frequently used to retrofit existing systems.

KNOLL's MicroPur® sets standards:

  • Effective backflushing with cleaning medium thanks to a separate pump, resulting in a long service life for the filter cartridges
  • Very short backflushing times < 4 s without air, therefore great energy efficiency without filter interruption
  • Display of the differential pressure on each filter and control panel; thus direct localization of damaged filter cartridges
  • Differential pressure for regeneration can be set on each individual filter housing; this guarantees optimal filter quality
  • Filter cartridges in tandem arrangement; thus less space required
  • Drip-free filter change < 1 min; less maintenance and cleaning work required

 
KNOLL Maschinenbau will be at GrindTec 2018 in Hall 5, booth 5110. 
  

B01_KNOLL_MicroPur240 B-AK 5

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With the MicroPur® 240 B|AK 5 superfine filter, the "B" stands for bypass operation. Such MicroPur® bypass systems are functional as stand-alone units, that is, without interface connections to or interventions into existing controllers. Therefore, they can also be operated easily on other manufacturers' systems.  jpg (402 KB)

B02_KNOLL_MicroPur480 M-AK 25

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At the trade show booth, KNOLL will display the MicroPur® 480 M|AK 25 filter module, which can filter a maximum of 480 l/min. jpg (301 KB)

B03_KNOLL_VL650

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The KNOLL VL vacuum filter is a high-performance filter that can also be used to clean cooling lubricants in fine processing and superfinishing. jpg (213 KB)

KNOLL Maschinenbau GmbH
Schwarzachstraße 20
D-88348 Bad Saulgau

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