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Vacuum and Ultra-High Vacuum Welded Bellows

Vacuum and Ultra-High Vacuum Welded Bellows
Price: US $ 10/Piece
Trade Terms: FOB,CFR,CIF
Min Order: 1/Piece
Pay Type: L/C,T/T
Products specifications: 
Molds and welded bellows sizes can be designed and developed according to customers' requirements. 
Inner vacuum: Vacuum 
Outer vacuum: Outer vacuum, atmospheric pressure 
Temperature: Normal temperature-250/450° C(316L), -250/800° C(AM350) 
Leak rate: 1*10-13PA.L/S
Material: SUS 316L, SUS 304, AM350, Hastelloy alloy C Haynes alloy 242, Inconel 625 and 718 alloy, titanium 
Free length: Optional 
Service life: 100-1, 000-3, 000 thousand times (according to the temperature and pressure) 
Compress rate:About 70% 
Stretch rate:About  15% 
Simplex wave rigidity: 0.5N/mm-20N/mm
Packing: Plastic Bag, EPE Inside, Carton Outside
Production Capacity: 50000 Pic/Month
 
Products Test: 
    Our factory is equipped with advanced numerical control lathes, numerical control milling machines, and our factory introduce high-precision automatic welding machines, laser welding machines and plasma welding machines from Korea, and also imported Korean stamping equipments. For better quality test of the welded bellows, it also equipped high precision vacuum life test equipment from Taiwan, Varian VS leak detectors from America, and horizontal rigidity testers from Korea. 

Features:
 
1.To absorb effectively vibration, noise,thermal expansion from pipeline system;
2.To resolve minor deviation because of piping connecting and eliminate the pipeline residual stress;
3.Applied to repeated motion in high temperature areas,good anti-fatigue performance;
4.Good flexibility,resistant to high temperature, resistant to corrosion.
5.Applied in the fields of petroleum,chemical industry,aerospace,metallurgy,electricity, gas,building,mechanical, construction,iron and steel,paper making,fabric,medicine,food and vessels ect.
 
Main advantage:

First,excellent anti-chemical character.It almost applies to all mediums.
Second, temperature range is very wide.(Around -250°C to 900°C)
Third,anti- compressibility function is very good.
Four,long service life.

Seal Tech History:

l 2003.Founded,Korea owned enterprise-Shenyang Seal Tech Co.,Ltd,started mechanical seal business.
l 2004.Passed ISO9001:2000 international quality management system certificate.
l 2005.Relocated from Shenyang to Dashiqiao city,started production of welded bellows.
l 2006.Became supplier for Foxconn Technology Group.
l 2007.Became member of Chinese Vacuum Institute.
l 2008.Succeeded in developing welded bellows used for the third generation of accelerator.Became supplier for GT Advanced Technologies(USA) and Jinggong Science&Technology Co.,Ltd.
l 2009.Joined in Semiconductor Industry Association(SEMI).
l 2010.Awarded the title of three-star enterprise by Yingkou city government.
          Transformed from Korea-owned enterprise to China-Korea joint venture enterprise.
l 2011.Relocated to Small and medium Enterprises to Industrial Park ,Yingkou city.
          Founded Shanghai Office.
 l 2012.Succeeded in developing inflatable type welded bellows special for Institute of High Energy physics Chinese Academy of Sciences.
         Awarded the title of Advanced Unit in Small and Medium Enterprises in Liaoning Province.     
l 2013.Finished and succeeded in the R&D of welded bellows within the size of Ø900
l 2014.Succeeded in merger and acquisition of Korea Seal Tech Co.,Ltd.
l 2015.Begin production of the new generation of formed bellows.


Why choose us: 
Seal Tech is a leading manufacturer of metal bellows expansion joint in China. We have: 
(1) Strong R&D strength; 
(2) Strict Quality Control System; 
(3) Perfect Test System; 
(4) Professional After-sale Service Team; 
(5) OEM Service. 
We are your qualified supplier and reliable friends! 
Thanks for your attention. For more information, please feel free to contact our sales manager: 
Sofia Meng
Mobile: +86-13464393121
Prod Model: ST61 X0012
Markets: North America,South America,Southeast Asia,Mid East,Western Europe
Internal: Inter Vacuum
External: Outer Vacuum Atmospheric Pressure
The Highest Vacuum Leak Rate: 1*10-13PA. M3/S
Material: SUS 316L, SUS 304, Am350, Hastelloy Alloy C Haynes
Free Langth: Optional
Compress Rate: 50-70%
Stretch Rate: 5-15%
Service Life: 100-1, 000-3, 000 Thousand Times (According to The
Convolution Rigidity: 0.5n/Mm-20n/Mm
Standard: Standard
Yingkou Seal Tech Welded Bellows Co., Ltd was founded in 2003, a China & Korea Joint Venture enterprise, specializing in the manufacture of welded bellows, which is located in the small and medium enterprises industrial park of Yingkou City, Liaoning Province, It covers total area of 15000 square meters and building area of 8600 square meters, endowed with superior geographic location and convenient transportation. At present, Seal Tech has become a large professional welded bellows manufacturing enterprise which integrated design, development, fabrication and sales in China.

The company mainly supplied welded bellows used in series of advanced technology enterprises for vacuum equipments vendors, semiconductor equipments vendors, solar photovoltaic equipments vendors, Pharmaceutical equipments vendors. The products are widely used in vacuum industry, nuclear industry, aerospace industry, electricity industry, petroleum industry, semiconductor industry, solar photovoltaic industry, synchrotron radiation accelerators etc, as well as widely used in domestic military industry projects.

Our company owns international advanced equipments and professional technologies, strict testing and management systems, we not only provide a firm guarantee for quality but also improve a long service life of products. Moreover, Seal Tech can manufacture welded bellows of various specifications and accept orders of customized specifications also will satisfy customers with fair price and timely delivery. Our company principle is "Once severed, be served forever.

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