What's the function of rubber bellows? Silicone Rubber Bellows are used as a cover or expansion joint to protect device or machines to protect against dust, water, oil, grease, acids, bleaches, spatter or other environment elements. Silicone rubber bellow hose is a typical cover and connector, which is made by rubber compression molding, injection molding.
Silicone Bellow Hose, also called as Silicone Vacuum Bellow Seal, Flexible Silicone Bellow, are used as a cover or expansion joint or connector to protect and connect device or machines, which are made by rubber compression molding, rubber injection mold or extrusion tool.
Rubber Bellows are designed as a cover mainly protect against dust, water, oil, grease, acids, bleaches, spatter or other environment elements.
Silicone Rubber Bellow can have different kinds of shapes, materials, colors, hardeness according to the usage in different areas.
Rubber Bellows Main Structions and Shapes
Straight Convolution Rubber Bellows
Spiral Convolution Rubber Bellows
Concentric Rubber Bellows
Tapered Rubber Bellows
Metal+Rubber Overmold Bellows
Rubber Bellows with Clamping, Hole & Lock
Rubber Bellows Materials
|Material||Abbreviation||Temperature Range |
|Aging Weathering |
|Oil& Grease |
|Water Swell Resistance||Flex-Fatigue||Economy of |
|Neoprene||CR||-40F to 250F||Good||Good||Average||Very Good||Good||exposure to refrigerants, |
can be compounded for FDA applications
|Nitrile||NBR||-22F to 212F||Poor||Very Good||Good||Good||Very Good||Automotive Applications, |
Good Oil Proof
|Ethylence-Propylene||EPDM, EPM||-60F to 300F||Very Good||Poor||Very Good||Good||Very Good||Outside Applications, |
Good Weather Proof
|Silicone||VMQ||-75F to 450F||Very Good||Average||Very Good||Very Good||Average||Medical Applications|
|Fluorocarbon||FKM||5F to 390F||Very Good||Very Good||Good||Average||Poor||Rubber King, |
We have rich experience in producing silicone rubber bellow:
A. Wall thickness tolerance: less than 0.05mm
B. Mini or less bellow
C. Mold maintenance aiming to up and down mold plate with horizontal stripe in exact position
D. Good ejected molding to improving rubber bellows production efficiency
Flexible silicone expansion bellow production: