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Freudenberg introduces ‘green’ filter for pools and spas
Technology news Filtration+Separation January/February 2012
Freudenberg introduces ‘green’ filter for pools and spas Freudenberg Filtration Technologies in the US has developed a new filtration media made with post-consumer recycle (PCR) polyester. “Hydrotexx ECO was designed to respond to the green-minded consumers in the pool and spa marketplace,” said Chris Murray, general manager, liquid filtration for Freudenberg Filtration Technologies NA. “Incorporation of recycled products, improvement in energy efficiency, reuse of expended energy and landfill avoidance are all areas of focus for Freudenberg Filtration Technologies.” Freudenberg Filtration Technologies worked with Meissner Manufacturing, which manufactures the Unicel brand and produces replacement cartridges for the pool and spa market, to make the Viledon Hydrotexx ECO filter. The Unicel team wanted a recycled filter cartridge with the design of end caps and filter cores
made of recycled materials and Freudenberg approached Unicel with the Hydrotexx ECO concept. PCR comes from converting used polyester bottles into a raw material that can be fed into the manufacturing process. About 23% of all polyester bottles in the US are recovered through recycling and reprocessing. The process begins with the collection, bundling, shredding and cleaning of discarded beverage bottles made of polyethylene terephthalate (PET). Freudenberg then uses proprietary spunlaid manufacturing technology to make nonwoven polyester media from the shredded plastic. “By incorporating recycled ECO products into filtration systems and applications, we are helping our customers achieve their own recycle targets,” said Murray. www.freudenberg-filter.com
Maxflow filter systems used in watch part grinding Cooling lubricant used to help make Swiss watches is being filtered using GKD’s Maxflow compact filter system CS 1000-503. The watches are made using double disk grinding technology from Supfina Grieshaber GmbH & Co. KG, while the brass plates which carry the various components of a clockwork mechanism are precision ground to a tolerance of microns in Planet machines. The cooling lubricant is then processed to the required filtration level of ≤ 5 μm. The first stage in creating a bespoke design for a double disk grinding unit is a technical drawing of the component that the customer is looking to produce and for which a suitable machine is needed. Supfina’s applications engineers developed the necessary specifications for grinding wheels, cooling lubricants and grinding and cutting speeds. Next the company customises the machine to the customer’s particular process and plant specifications with application-specific transport disks and handling mechanisms for work piece feeding and removal. Depending on the thickness of the parts to be ground, the transport disks are made of glass fibre reinforced plastic or steel. For very thin parts, used extensively in the watch industry, with a lower limit of 0.5 mm for double disk grinding, the transport disk measures between just 0.3 and 0.4 mm and is laser cut from steel. The machine selected was a Planet V4 with vertical grinding
spindles, which was designed for finishing work piece diameters of up to 85 mm. The manufacturer commissioned Supfina to build a unit to produce plates with a roughness of 0.2 μm. To achieve the extremely smooth surface required, the cooling lubricant needed a filter fineness of ≤ 5 μm. Supfina approached GKD and following laboratory testing the filter mesh construction and the number of filter disks were determined. GKD then configured the compact filter system MAXFLOW CS 1000-503 with a filter head comprising four static disks and a round tank system with integrated cooling coil for the test unit. The unit housing, filter disks and mesh are made of stainless steel. A filter disk package covered with multidimensional YMAX composite mesh, designed specifically for the given process, is installed vertically in the filter head. The filter disks are located in the crossflow as cooling lubricant emulsion contaminated with grinding waste and particles streams around them. With the required filtration level of ≤ 5 μm the filtration rate is 200 litres per minute. The clean tank has an integrated dirt tank with a tapered run-off that prevents a build-up of deposits at the bottom. The filter cake is detached from the disks by automatic backwashing and is pressed into a dry briquette by the integrated pressing unit and then discharged. www.gkd.de
Exhibiting at IFAT or ACHEMA? Filtration+Separation will feature previews of two forthcoming exhibitions in coming issues. The March/April issue will feature a preview of the IFAT Entsorga exhibition to be held from 7-11 May 2012 in Munich, Germany The show will highlight innovation and new developments in water, sewage, waste and raw material management. The May/June issue will contain a preview of the ACHEMA
exhibition to be held in Frankfurt, Germany from 18-22 June 2012. ACHEMA will feature the latest developments for the process industries. Exhibitors wishing to submit a contribution to the preview should send brief details of their products and services on display to the Editor by 5 March 2012 (IFAT) and 11 April 2012 (ACHEMA) – m.holmes@ elsevier.com www.filtsep.com
IFAT will be held in Munich, Germany from 7-11 May 2012.
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Freudenberg introduces ‘green’ filter for pools and spas Freudenberg Filtration Technologies in the US has developed a new filtration media made with post-consumer recycle (PCR) polyester. “Hydrotexx ECO was designed to respond to the green-minded consumers in the pool and spa marketplace,” said Chris Murray, general manager, liquid filtration for Freudenberg Filtration Technologies NA. “Incorporation of recycled products, improvement in energy efficiency, reuse of expended energy and landfill avoidance are all areas of focus for Freudenberg Filtration Technologies.” Freudenberg Filtration Technologies worked with Meissner Manufacturing, which manufactures the Unicel brand and produces replacement cartridges for the pool and spa market, to make the Viledon Hydrotexx ECO filter. The Unicel team wanted a recycled filter cartridge with the design of end caps and filter cores
made of recycled materials and Freudenberg approached Unicel with the Hydrotexx ECO concept. PCR comes from converting used polyester bottles into a raw material that can be fed into the manufacturing process. About 23% of all polyester bottles in the US are recovered through recycling and reprocessing. The process begins with the collection, bundling, shredding and cleaning of discarded beverage bottles made of polyethylene terephthalate (PET). Freudenberg then uses proprietary spunlaid manufacturing technology to make nonwoven polyester media from the shredded plastic. “By incorporating recycled ECO products into filtration systems and applications, we are helping our customers achieve their own recycle targets,” said Murray. www.freudenberg-filter.com
Maxflow filter systems used in watch part grinding Cooling lubricant used to help make Swiss watches is being filtered using GKD’s Maxflow compact filter system CS 1000-503. The watches are made using double disk grinding technology from Supfina Grieshaber GmbH & Co. KG, while the brass plates which carry the various components of a clockwork mechanism are precision ground to a tolerance of microns in Planet machines. The cooling lubricant is then processed to the required filtration level of ≤ 5 μm. The first stage in creating a bespoke design for a double disk grinding unit is a technical drawing of the component that the customer is looking to produce and for which a suitable machine is needed. Supfina’s applications engineers developed the necessary specifications for grinding wheels, cooling lubricants and grinding and cutting speeds. Next the company customises the machine to the customer’s particular process and plant specifications with application-specific transport disks and handling mechanisms for work piece feeding and removal. Depending on the thickness of the parts to be ground, the transport disks are made of glass fibre reinforced plastic or steel. For very thin parts, used extensively in the watch industry, with a lower limit of 0.5 mm for double disk grinding, the transport disk measures between just 0.3 and 0.4 mm and is laser cut from steel. The machine selected was a Planet V4 with vertical grinding
spindles, which was designed for finishing work piece diameters of up to 85 mm. The manufacturer commissioned Supfina to build a unit to produce plates with a roughness of 0.2 μm. To achieve the extremely smooth surface required, the cooling lubricant needed a filter fineness of ≤ 5 μm. Supfina approached GKD and following laboratory testing the filter mesh construction and the number of filter disks were determined. GKD then configured the compact filter system MAXFLOW CS 1000-503 with a filter head comprising four static disks and a round tank system with integrated cooling coil for the test unit. The unit housing, filter disks and mesh are made of stainless steel. A filter disk package covered with multidimensional YMAX composite mesh, designed specifically for the given process, is installed vertically in the filter head. The filter disks are located in the crossflow as cooling lubricant emulsion contaminated with grinding waste and particles streams around them. With the required filtration level of ≤ 5 μm the filtration rate is 200 litres per minute. The clean tank has an integrated dirt tank with a tapered run-off that prevents a build-up of deposits at the bottom. The filter cake is detached from the disks by automatic backwashing and is pressed into a dry briquette by the integrated pressing unit and then discharged. www.gkd.de
Exhibiting at IFAT or ACHEMA? Filtration+Separation will feature previews of two forthcoming exhibitions in coming issues. The March/April issue will feature a preview of the IFAT Entsorga exhibition to be held from 7-11 May 2012 in Munich, Germany The show will highlight innovation and new developments in water, sewage, waste and raw material management. The May/June issue will contain a preview of the ACHEMA
exhibition to be held in Frankfurt, Germany from 18-22 June 2012. ACHEMA will feature the latest developments for the process industries. Exhibitors wishing to submit a contribution to the preview should send brief details of their products and services on display to the Editor by 5 March 2012 (IFAT) and 11 April 2012 (ACHEMA) – m.holmes@ elsevier.com www.filtsep.com
IFAT will be held in Munich, Germany from 7-11 May 2012.
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