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10/05/2007
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Kaeser Kompressoren at LIGNA 2007
Compressed air for reliable and efficient wood processing
Wood and compressed air have much in common: They are versatile, environmentally friendly and exceptionally cost-effective. Therefore, as one of the world's foremost compressed air systems providers Kaeser Kompressoren will be at LIGNA 2007 in Hanover (Hall 14, Stand K 21) to showcase its comprehensive range of innovative products and services for the timber industry.
The spectrum ranges from portable compressors for efficient interior work up to complete system installations for dependable and cost-effective compressed air/vacuum production for factories. Also on show will be Kaeser’s rotary screw vacuum pumps, which are used to provide energy for the so-called 'Nesting' process. New in the compressor range is the 'SK Aircenter' for air deliveries from 1.8 to 2.2 m³/min (at 8 bar): This complete compressed air system enables energy-efficient compressed air production and treatment with minimal space requirement. Based on Kaeser's proven SK rotary screw compressor series, the 'SK Aircenter' is exceptionally easy to use and combines outstanding performance with super-quiet operation. In addition, Kaeser's latest portable compressor, the M 13, will also be on show. This versatile and manoeuvrable unit has a free air delivery of 1.2 m³/min (at 7 bar) and features a premium quality petrol motor, making it the perfect choice for outdoor applications.
Vacuum pumps for wood processing
Reliable and efficient
Its not just Kaeser rotary screw compressors that deliver outstanding availability, efficiency and durability, but so too do Kaeser rotary vacuum systems. Renowned for their impressive performance, they play a key role in furniture production by providing vacuum for blanks in the 'nesting' process.
It's just a matter of time: Furniture manufacturers will increasingly replace conventional horizontal or vertical sheet cutting techniques with the so-called 'nesting' process. Nesting involves program-controlled cutting of blanks from sheets or panels. Specialised software optimises utilisation of raw materials so that as many blanks as possible can be produced from the available sheet / panel with minimal wastage. The components are then cut out by a CNC-controlled machining centre. This process enhances usage of materials and enables greater flexibility.
Cutting and no unwanted movement
The basic requirements for precision cutting with short cycle times are that the sheets to be processed must be firmly held in place and should be able to be changed as quickly as possible. The sheets are fixed to the cutting table via vacuum. An intermediate layer of fleece-like material helps to a) protect the table surface from damage and b) evenly distribute the vacuum force over the entire surface area of the sheet so that no unwanted movement occurs even when cutting small and detailed shapes.
Wherever there's cutting ...
It's all go in the cutting hall at German firm Kurt Junghans Polstergestell GmbH in Dörfles-Esbach, Northern Bavaria. Two employees 'feed' the dual table Reichenbacher-Hamuel "Eco" machining centre with sheets precisely tailored to the size of the cutting tables. A powerful vacuum then presses the sheets on to the fleece material, the table retracts into the machining centre, the cutter head powers its cutting bits to speeds of up to 30,000 rpm and “here goes”.
Each providing a pumping speed of 15.7 m³/min (at 700 mbar), two Kaeser CSV 150 series rotary screw vacuum pumps complement the compressed air system: An SM 11 rotary screw compressor from Kaeser caters for the compressed air which is also necessary for the production process. Wherever there's cutting there are – often very fine – shavings. Even the best extraction systems cannot completely remove the contamination from the air that the vacuum pumps have to extract. This is where the intake filtering performance of Kaeser systems really comes into its own. Additional product design features also ensure outstanding dependability, efficient energy consumption, simple operation and minimal maintenance requirement. Kaeser therefore makes the efficient 'nesting' process even more efficient.
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(Fuente de información: Hannover Messe)
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