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Different kinds of Custom mold rubber bellows

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Different kinds of Custom mold rubber bellows

16 Jul, 2021

Molded rubber bellows also called accordion rubber bellows,corrugatedpipe,rubber duct,are flexible seals that protect mechanical structures from the environment while permitting a range of motion. They are used inautoindustrial, transportation, and many other applications as a protective covering against dust, water, oil, grease, chemicals, and environmental elements such as mud, and snow. Rubber bellows can also reduce noise, resist shock and vibration, and withstand sunlight and ozone while remaining flexible at changing temperatures.

Fusteuses injection and compression molding to produce standard and custom rubber bellows in a range of materials, shapes, and sizes.

Rubber Bellows Main Structions and Shapes



Tapered Rubber Bellows


Tapered Rubber Bellows


Fuste rubber bellows have bellow advantage :

  • Our rubber bellow product by injection mold machine , high production efficiency
  • small and fine parrting line
  • no rubber flashing on part line
  • aniti age, ozone resistance
  • Wall thickness tolerance: less than 0.05mm

Tapered Rubber Bellows



Materials andApplications

Material

Abbreviation

TemperatureRange
(dry heat)

Aging Weathering
Ozone

Oil&Grease
Resistance

WaterSwell 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 Application


Molded rubber bellows are usually made ofNBR,NBR+PVC ,CR,silicone, or natural rubber. Each type of elastomer has different performance properties.


· EPDM rubber bellows have goodozone resistance and anti-age.

·NBRrubber bellows combine very good abrasion resistance with good tensile strength.

· Silicone rubber bellows lack abrasion resistance but haveexclent stretchresilience.

· Natural rubber bellows have good tensile strength and tear strength.


During material selection, it’s especially important to consider all of the environmental elements.For example,NBRprovideexcellent oil and solvent resistance but has poor flame resistance.EPDM provide high tensile and have excelent ozone and weather resistance . Siliconeresists a wide range of temperature but isn’t recommended for use with oils .


Fusteis anIATF 16949and D-U-NSregistered company thatspecialize in product the rubber parts in china. Whether your need custom rubber bellows or standard products, we’re ready assist you. Contact us to get started.sales2@fuste.com.cn


 
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