Feature Industrial Cleaning
A real breath of fresh air P
roviding a safe and clean environ- ment both for the health of its employees and the quality of its products is a paramount concern for Carl Zeiss Industrielle Messtechnik (Carl Zeiss IMT). The company has three production sites and more than 100 sales and service centres world- wide for its bridge-type and horizontal arm measuring machines in addition to instruments for measuring form, geometry and surface. It sets high standards for everything from use in manufacturing environments to com- ponent storage, with a special focus on quality, environmental protection and occupational safety.
IMT places particular emphasis on optimising processes and early detec- tion and prompt correction of any defects. The same also holds true for the Schwarz Group which handles a large volume of the logistics activities and warehousing for Carl Zeiss IMT at their Aalen-Ebnat site. Two large ware- houses of approximately 4000 m2 each and a height of around 9 m are used for interim storage of components. With stock moved on a daily basis the stored components soon gather dust.
Occupational health
There was a risk that problems would arise during further processing of the components. Carl Zeiss IMT pays par- ticular attention to occupational safety which includes healthy indoor air quality in the storage areas. The avail- ability of staff and maintaining their health is a top priority.
It was paramount for Carl Zeiss IMT, to find a safe, long-term solution that would cope effectively with high vol- umes of dust in large areas while using only a small amount of energy.
This was the reason why Carl Zeiss IMT and the Schwarz logistics team decided to visit Camfil in order to inspect the operation of the prototype CamCleaner installation on site in the Ellwangen warehouse. The result was convincing since significantly less dust was produced when CamCleaner air purifiers were used.
The next step to make a real compar- ison was the testing phase. For 24 hours test pallets loaded with clean room discs were stored simultane- ously and in similar positions in the high bay warehouse or in pick-up positions in the Camfil warehouse in Ellwangen and the IMT warehouse in Aalen-Ebnat. The particles on the clean room discs were counted after- ward. The result shows that dust accu- mulation in the Camfil logistics centre in Ellwangen where CamCleaner air purifiers are in operation is 3-4 times lower than in the warehouse in Aalen- Ebnat. The test has proved the reliable operation of the CamCleaner system. The logistics centre is now using Camfil CamCleaner 6000 units to purify the air in the areas used for stor- ing IMT products. Key benefits of the
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The logistics centre is now using Camfil CamCleaner 6000 units to purify the air in areas used to store IMT products
Particle measurement
Particle measurement was carried out during commissioning. The result was that shortly after commissioning, par- ticle accumulation (0.3-0.5m) in the warehouse was reduced by more than half. A second measurement, two weeks after commissioning showed that the particle concentration was fur- ther reduced by half (only about 20% of the original particle concentration before the installation of CamCleaner). The logistics staff are more than happy with the increasingly dust-free storage area and the effects of improved working conditions. The highly efficient CamCleaner filtration system reduces the number of required air changes which in turn reduces maintenance costs.
Camfil T: 0870 199 4044
www.camfil.co.uk
Technology leader for measurement instruments Carl Zeiss sets high standards for its products and to keep its warehouse space dust-free installed a long-term and safe air purifying solution from Camfil
CamCleaner 6000 include clean product environment and fewer opera- tional disruptions; healthier employ- ees; less cleaning; low energy costs; reduced environmental impact; and even temperature distribution in rooms with high ceilings.
Prior to installing the units, particle concentrations were measured and the optimum positions and equipment types suitable for both warehouses were clearly defined.
The units are positioned to ensure proper airflow in the warehouse but at the same time not to interfere with operations. The complete installation and commissioning of the system was carried out by Camfil.
NOVEMBER/DECEMBER 2013 Factory Equipment
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