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hp tooling 2020 #3

  • Text
  • Components
  • Processes
  • Coating
  • Materials
  • Measuring
  • Milling
  • Grinding
  • Machining
  • High precision
The journal of hp tooling is an english, global publication on all aspects of high precision tools, accessories and their applications.

components The filter

components The filter system can continue to operate during the removal and disposal of recyclable material; the sludge is deposited directly into transport containers provided by the recycling company The machine supply pumps are exactly matched to the VOMAT filtration system, both in capacity and performance; the cleaner the grinding oil the longer it can remain in the system and can provide better protection for machine pumps and lines Adapted filtration performance to the production process In VOMAT systems, the filter flow and backwash cycles are automatically controlled as required. This extends the service life of the filter elements and saves energy and costs. According to VOMAT, many conventional systems on the market permanently filter at full filtration capacity, even if this is not absolutely necessary. VOMAT systems on the other hand adapt to the production process. If, for example, the grinding machine runs at a slower speed, only the required amount of coolant is filtered. If a VOMAT central system provides filtration for several grinding machines, and some are not in operation, the filter capacity automatically adapts to the machining volume. At the same time, less cooling capacity is required. This reduces the energy consumption even further. The new VOMAT Vacuum Belt Filter UBF is designed for filtration of water-based coolants, emulsions and grinding oils all in a very small space During cleaning in full-flow mode, the demand-oriented backwash cycle provides further advantages: With VOMAT filters, the backwash cycles are triggered by the degree of filter cartridge contamination. Once the relevant values are reached, the backwashing process begins, during which each filter is backwashed individually and with a time delay. The other filters ensure a continuous supply of clean oil. In the disposal unit, the dirty oil is separated from the sludge and then fed into the dirty oil tank. This fully automatic control of the filtration system keeps energy and operating costs low. In addition, VOMAT technology controls the temperature of the coolant during the grinding process within a range of ± 0.2 K. The high-precision temperature controls keep the coolant temperature always constant within the preselected range. This means that the grinding oil in use will have a long life cycle. VOMAT systems permanently cool down the coolant during continuous operation. VOMAT offers various design options for their cooling systems, such as pallet- mounted units for easy removal and re-assembly on site without service personnel, and auxiliary units with external condenser for cooling. Ano ther option is a cold water-operated cooling system with a closed loop piping system, such as the VOMAT’s modular and expandable KWS 250 chiller is equipped, complete with circulating pump and Eaton controls. The cooling capacity is 250 kW for brine operation with a control accuracy of +/- 1.0 K. The unit does not require a buffer storage tank and can be installed in industrial outdoor areas. The VOMAT KWS 250 is very energy-efficient and ensures high-precision temperature control. Steffen Strobel: “Thanks to the on demand backwashing technology and the highly accurate temperature control, the service life of each individual filter cartridge as well as all machine components is significantly increased. The optimal cleaned coolant can remain in the system for ex- 42 no. 3, September 2020

components tended periods of time, which saves money and energy.” Efficient recycling of valuable materials: getting the most out of your coolant Not only advanced high-performance filters, which clean coolants extremely well, ensure energy efficiency, but an automatic sedimentation system also allows for sustainable recycling. Thanks to the pro prietary design features of the VOMAT system, the grinding sludge has a residual moisture content of only 5 to 10 % after settling. The filter system can continue to operate during the removal and disposal of recyclable material. The sludge is deposited directly into transport con tainers provided by the recycling company. Contamination by filter aids such as cellulose or residues of paper bands are eliminated with the VOMAT technology. This not only saves money but also resources and the environment. VOMAT ultra-fine filtration units can be used for tool grinding machines processing carbide and HSSsteel or for a mix of the two. VOMAT systems are available in various si zes: standard flow rates are 70 liters/minute, 120 to 420 liters/minute and 480 to 960 liters/minute. In addition, customer-specific system config u rations can be build up to capaci ties of an industrial central system. filtered from cooling lubricants - such as water-based media - without a prefiltration system to a filter fineness of 10 to 30 µm.” According to VOMAT, the compact UBF unit is extremely easy to maintain and, due to a special belt guide design, takes up about 70 % less space than conventional systems. In comparison to other systems on the market, VOMAT provides three times as much filtration capacity per square meter of production area. Steffen Strobel: “Our systems manage the balancing act between productivity and environmentally friendly pro duc tion. Sustainabi - lity also means to get the most out of the entire production process. The bottom line is that VOMAT technology saves many resources such as machines, working time, space, energy and raw materials.” further information: www.vomat.de UNLEASH THE CUTTING POWER ESTRAMET S 77 – THE COOLANT REVOLUTION The systems can be adapted to customer-specific or increased individual requirements by means of various expansion modules, such as special cooling concepts, machine pumps, additional tanks and recycling options. Multi-talent vacuum belt filter (UBF) Steffen Strobel: “Another example of our market-driven, sustainable fil tration technology is the new UBF vacuum belt filter for the filtration of water-based coolants, emulsions and grinding oils in the smallest of spaces. With the VOMAT UBF, ferrous and non-ferrous alloys, HSS, disc abra sion, binders, etc. can be Oemeta Chemische Werke GmbH estramet.com

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