The written name of the blind disk for ball mill is blind flange. It is a round plate which has all of the relevant bolt holes but no center hole, and because of this feature this flange is used to close off the ends of a piping systems and pressure vessel openings. So it has the same function of shell cover and pipe cap. The only difference is that it permits easy access to the interior of a line or vessel once it has been sealed and must be reopened. Blind Flanges are commonly used in petrochemical, pipe engineering, public services and water works. There are many types sealing faces of the blind disk for ball mill, such as planar face, convex face, male and female face, tongue and groove face and ring joint face. The blind flange provided by our company is made of rubber material. 


1.The blind disk for ball mill provided by us takes the advantages of high elasticity, high pressure resistance and high corrosion resistance. So it can bear the corrosion of high concentration acid and alkaline material. 
2.This kind of blind flange owns long service life for its excellent tenacity to resistant to the wear, pressure and moisture.         
3.Reliable hygienica property duo to it has no smell and non-toxic.  
4.Owning to its performances of heat-resisting, heat preservation and energy conservation, it has well thermal insulation properties. 
5.This blind flange has reliable connection performance. 

6.Convenient workability for its light texture. 


Property  Units Value
Hardness Shore A 62
Tensile Strength  MPa  20.5 ± 10
Elongation at Break 6.5 ± 10
Tear Strength N/mm 313
Abrasion Loss MM3 35
Resilience %  
Operating Temperatures (Continuous use)   -40℃to+70℃/
Colour   Black


All physical property values developed and measured using a press-cured sample sheet prepared in accordance with GB/T18241.2-2000.