Leybold offers a dry claw pump, CLAWVAC, for robust rough vacuum applications

Cologne, October 2020 – Especially for rough industrial processes Leybold  introduces the uncomplicated, dry rough vacuum CLAWVAC pump. Besides food  processing, packaging and environmental technology applications, it is suitable  for drying and sterilization processes. The pump, which is offered in three  pumping speed classes, is specially designed for continuous operation at every  working pressures. Additionally the special pump design avoids that oil comes  into contact with pumped gases, what allows higher Oxygen applications. At the  same moment, Leybold also offers with the CLAWVAC System series a new  multiple pump system. These systems are based on CLAWVAC and offer a  redundant plug-and-play solution. 


Uncomplicated handling 
The daily use of CLAWVAC is uncomplicated: Thanks to the self-supporting construction, the  vacuum generator is easily accessible. What allows to directly clean the pump on-site. The  simple handling of the robust pump can also be attributed to its operating principle: A pair of  claw rotors rotating in the pump stator completely free of contact and wear. CLAWVAC also  distinguishes itself from standard claw pumps on the market by the choice of materials. Rotors  made of stainless steel and a corrosion-resistant coated vacuum chamber, it proves its worth  even under harsh process conditions. This makes an important contribution to reliable  operation. 


Disassembly in a few minutes 
The modular pump design allows a quickly dismantling, opening and cleaning of the pump  essentials as the pumping chamber and the silencer. For a mechanic these steps can be done  in a few minutes and the frequency is purely depending on the hardness of the process. Except  the 20 000 hr oil & lipseal replacement, no further regular maintenance is required and  additionally it is independent of the application. "Thanks to this pump characteristic, we have  reduced the amount of servicing required and improved the environmental balance," explains  Niels Gorrebeeck, Product Manager Rough Vacuum, Leybold, Cologne. 


Minimal downtimes 
The CLAWVAC design allows the user to disassemble and clean the claws quickly and easily as the rotors can be removed without having to readjust the synchronization. This primarily  relieves customers with rough & dirty processes, whose pumps previously needed a  synchronization at the manufacturer side. The CLAWVAC set-up is based on a quick component replacement, which has to ensure a minimal downtime and low service costs.
 

Wide range of applications 
On the basis of CLAWVAC, Leybold also has a new multiple pump system in its program, a  powerful plug-and-play solution. Especially for packaging plants, pneumatic conveying lines or  clamping devices of CNC machines the multi claw pumps are a reliable solution. This also  applies to plastics processing machines, drying processes and central vacuum supplies.


Low energy consumption, low CO2 output 
Depending on the required flow rate, the systems contain two to four CLAWVAC pumps in one  housing. "The robust, long-life pumps operate in an intelligent controlled dry and air-cooled  solution" summarizes Niels Gorrebeeck. “On top of that, CLAWVAC System only delivers the  required vacuum.” One pump is speed-controlled, that allows the exact adjustment of the  generated vacuum. The intelligent control activates or disactivate the other fixed speed pumps  based on the vacuum need. This speed control reduces the necessary energy consumption and  CO2  emissions. 


A constant & redundant vacuum supply 
“During the design we strongly focused on the customer needs as a high redundancy level,  minimal maintenance needs and stable vacuum supple even in harsh environments” explains  Niels Gorrebeeck. The earlier mentioned constant vacuum level guarantees the customer product quality in all conditions, the same intelligent control equalizes the running hours of the  fix speed pumps. The control principle is even as such developed that your CLAWVAC System keeps on running, even with half of it pumps active. CLAWVAC Systems clearly meets all its  targets.  


Housing reduces noise and heat 
With this multiple pump system, Leybold brings all necessary components under one acoustic  enclosure and offers at the same way a compact, intelligent system solution. The robust  housing protects the pumps, reduces noise and heat and combines all the technology  necessary for operation in one box.  
Choose with CLAWVAC System for an innovative and effective vacuum solution, which has a  positive effect on your overall performance. Leybold offers these space-saving systems with  pumping speeds between 604 and 1144 m3/h. As with the individual claw pumps, the system  also allows a ultimate pressure up to 140 mbar absolute.

About Leybold 
Leybold is a part of the Atlas Copco’s Vacuum Technique business area and offers a broad range of  advanced vacuum solutions for use in manufacturing and analytical processes, as well as for research  purposes. The core capabilities centre on the development of application- and customer-specific systems  for the creation of vacuums and extraction of processing gases. Fields of application are secondary  metallurgy, heat treatment, automotive industry, coating technologies, solar and thin films such as  displays, research & development, analytical instruments, food & packaging, as well as a multitude of  other classic industrial processes. 


About Atlas Copco 
Great ideas accelerate innovation. At Atlas Copco, we have been turning industrial ideas into business critical benefits since 1873. By listening to our customers and knowing their needs, we deliver value and  innovate with the future in mind. Atlas Copco is based in Stockholm, Sweden with customers in more  than 180 countries and about 37 000 employees. Revenues of BSEK 95/ 9 BEUR in 2018.  

For further information, please contact: 
Niels Gorrebeck 
Product Manager Rough Vacuum 
T: +49 (0)174 95 12 873  
niels.gorrebeeck@leybold.com 
Christoph Angenendt 
Communications Manager Industrial Vacuum Division 
T: +49 (0)172 29 650 75 
Christoph.Angenendt@vt.atlascopco.com 
 

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Leybold offers a dry claw pump, CLAWVAC, for robust rough vacuum applications
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