Yingkou Seal Tech Bellows Co., Ltd
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Welded Metal Bellows

— Metal Bellows Manufacturer, welding bellow, Expansion Joint
Product Category: Metal Pipes/n.e.s.
Sales Method: Export, Manufacture, Wholesale, OEM/ODM, Service, Retail
Payment Term: T/T, L/C
Min. Order Unit Price
1 Piece USD 10 / Piece
Contact Info


Address: China (mainland) Liaoning Yingkou,No. 139 Jinniushan Stree, Yingkou, Liaoning, China (Mainland)
All Products (3)

Product Detail

Product Attribute:

  • Christmas Island More >
  • ST61 X009
  • ISO9001
  • 04/15/2015
  • 04/16/2015

Additional Info.:

  • Plastic Bag, EPE Inside, Carton Outside

Product Content Description:

Products specifications:
Bellows Material:  SUS 316L/SUS 304/ Hastelloy C /Inconel
· Type:  Welded Bellows
· Outside Diameter:  0.394"(10mm)To35.433"(900mm)
Inside Diamter:  0.157"(5mm)To31.496"(800mm)
· Leak Rate:  1*10-13PA. L/S
· Cycle Life:  100-3,  000 Thousand Times (According to The Temperature)
· Thickness:  0.08mm-0.2mm
· Compression Ratio  70%
Stretch rate  15%
· Length:  Custom
  Inner vacuum:  Vacuum
  Outer vacuum:  Outer vacuum,  atmospheric pressure
  Temperature:  Normal temperature-250/450° C(316L),  -250/800° C(AM350)
Convolution rigidity  0.5N/mm-20N/mm
· Packing:  Plastic Bag,  EPE Inside,  Carton Outside
· Production Capacity:  500PCS/Week
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 Hig h  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
Quantity Per Month: 50000 Pic/Month

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