Flexible Edge Welded Silicone Rubber Expansion Joint Dust Cover Bellow
Flexible Edge Welded Silicone Rubber Expansion Joint Dust Cover Bellowrs
Rubber Bellows are used as a cover or expansion joint to protect 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.
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
Square Bellows
Rubber Bellows Materials
| Material | Abbreviation | Temperature Range (dry heat) | Aging Weathering Ozone | Oil& Grease Resistance | Water Swell Resistance | Flex-Fatigue | Economy of Material | Material Notes |
| 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, Widely Applications |
Rubber Bellows Design Guide
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
Xiamen Beter Silicone Rubber Co., Ltd specializes in making rubber compression mould, plastic injeection mould, LSR injection mould, and manufacturing different kinds of rubber, plastic components according to customers' drawings, samples or ideas. We have accumulated more than ten-year experience in rubber industry and have our own factories, which enables us to provide customers with products technology support and offer a more competitive price and better after service.
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