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Newly Arrival 7Edge Folded Ring Surround Repair Kit - IIR Rubber surround used on loudspeaker – Nandi Yanlong Featured Image
  • Newly Arrival 7Edge Folded Ring Surround Repair Kit - IIR Rubber surround used on loudspeaker – Nandi Yanlong
  • Newly Arrival 7Edge Folded Ring Surround Repair Kit - IIR Rubber surround used on loudspeaker – Nandi Yanlong
  • Newly Arrival 7Edge Folded Ring Surround Repair Kit - IIR Rubber surround used on loudspeaker – Nandi Yanlong
  • Newly Arrival 7Edge Folded Ring Surround Repair Kit - IIR Rubber surround used on loudspeaker – Nandi Yanlong

Newly Arrival 7Edge Folded Ring Surround Repair Kit - IIR Rubber surround used on loudspeaker – Nandi Yanlong

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To meet the customers' over-expected satisfaction , we have our strong team to provide our best overall service which includes marketing, sales, designing, production, quality controlling, packing, warehousing and logistics for Rubber Surround Sound , 1"Edge Folded Ring Surround Repair Kit , 5"Edge Folded Ring Surround Repair Kit , Create Values,Serving Customer!" is the aim we pursue. We sincerely hope that all customers will establish long term and mutually beneficial cooperation with us.If you wish to get more details about our company, Please contact with us now.
Newly Arrival 7Edge Folded Ring Surround Repair Kit - IIR Rubber surround used on loudspeaker – Nandi Yanlong Detail:

Excellent air tightness, excellent water tightness, excellent sealing

Application Car audio, Home audio, Subwoofer audio, Stage speakers, Wall speakers, Ceiling speakers, Outdoor speakers, Intelligent voice Bluetooth speakers, surround sound, artificial intelligence speakers, Self DIY audio design.
Material IIR with another more than 10 types of additives to adjust the performance of the rubber
Hardness 40~85°
Thickness 0.10mm-15mm,accept customized
Surface treatment Black light, Sanding, Biting lace, etc
Shape Round, Oval, Rectangle,Accept foreign molds ,Support customize molds
Edge design High pressure strip, Textured, Anti concave edge, Notching, Punching, etc
Color As requested by clients
Feature Anti-aging, Waterproof, Durable, Pliable
Certification ISO9001,IATF16949,ISO14001
Capacity 60000pcs/month

A surround’s quality has enormous impact on the frequency response of a loudspeaker. The shore hardness directly affects the frequency of the speaker. Rubber surrounds also endure a long lifetime, almost 20~30years. IIR rubber surround is ideal for car speaker and outdoor speaker as for its excellent seal property.
Some people say foam surrounds are ideal for sound quality and high excursion while rubber surrounds are slightly stiffer but they last longer. The cost difference between rubber and foam is pretty insignificant. There are so many other factors involved with choosing a speaker surround than just its surround type, for example magnet size and cone material, that the surround alone is not going to seal the deal. Both material types serve their purposes well, just take a listen to decide the ideal surround material.
Butyl, also known as Isobutylene-isoprene (IIR), is a synthetic rubber developed in the 1940’s. It has exceptionally low gas permeability making it ideal for inner tubes and high pressure/vacuum sealing applications. Its very low resilience makes it suitable for shock and vibration damping. IIR is a great option for shock absorption. It offers exceptionally low gas and moisture permeability and outstanding resistance to heat, ageing, weather, ozone, chemical attack, flexing, abrasion and tearing. Butyl is resistant to phosphate ester based hydraulic fluids and has excellent electrical insulation properties. It has a tendency to trap air, blister and creep during manufacture.

Guangdong Nandi Yanlong Technology Co., Ltd.
Low temperature tensile test of rubber materials IIR
Lab Date： 2022.05.11-05.13 Lab Model：ND158-399
No. Model Lab Conditions Time Lab Temp Test result Test Diff
1 IIR60 1 Vulcanization conditions: 12H 23℃ Peak value Disp Str FO Peak value Disp Str FO
Suface Temp Mold Temp Time Pressure Cap 12H -40℃ 22.25 34.17 1.47 32 -2.40 -2.14 -0.17 +2
190/195℃ 170/175℃ 45S 8kg/C㎡ 65T 24H -40℃ 27.67 41.72 1.84 32 +5.42 +7.55 +0.37 0
2 100 ° 2-hour twice vulcanization. 36H -40℃ 25.90 37.56 1.72 33 -1.77 -4.36 -0.12 +1
3 Tension machine speed: A is 10 and B is 100 48H -40℃ 26.17 38.02 1.74 34 +0.27 +0.46 +0.02 +1
4 Tension plate:45mm*10mm*0.5mm 96H -40℃ 28.57 41.76 1.9 34 +2.40 +3.74 +0.16 0
5 Lab temp: 25℃±2℃, humidity 65%±30% Avg 26.165 38.646 1.9 33 0.19 0.08 0.03 0.4
Tabulator：Liu Li Auditor： Aken Inspector：Vic Chiu
一、Note：
1.peak value:the biggest tension.
2.Strength：In the tensile test, the maximum tensile stress of the specimen until it breaks.
3.Displacement：Travel distance from static movement to fracture.

Payment method: Pay 30% for deposit,70% before shippment.

Accept US dollars, RMB, if other currencies, please consult before paying.

Term:EXW/FOB/CIF/CFR/DDP

Port: Shen Zhen/Guang Zhou/Ning Bo/Shang Hai

Production Lead Time: 1-1k, 2 days；1k-10k, 7days；above 10k，negotiated.

Package:Export Standard Unified Carton Packaging.

Small quantity is usually shipped by courier.

Bulk quantity ship by air , by sea,by railway

Special service: help find low freight and freight counter-offer

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To create extra value for customers is our enterprise philosophy; buyer growing is our working chase for Wholesale Rubber surrounds, Rubber products, Cone paper used on all kinds of speakers. President of our company, with whole staff, welcomes all buyers to visit our company and inspect. Let us cooperate hand in hand to make a good future.

Our growth depends on the superior equipment, exceptional talents and continuously strengthened technology forces for Wholesale products which will supply to all over the world. Upon today, we have customers from all over the world. The mission of our company is to provide the highest quality products with best price. We are looking forward to doing business with you!

Product detail pictures:

Newly Arrival 7Edge Folded Ring Surround Repair Kit - IIR Rubber surround used on loudspeaker – Nandi Yanlong detail pictures

Newly Arrival 7Edge Folded Ring Surround Repair Kit - IIR Rubber surround used on loudspeaker – Nandi Yanlong detail pictures

Newly Arrival 7Edge Folded Ring Surround Repair Kit - IIR Rubber surround used on loudspeaker – Nandi Yanlong detail pictures

Newly Arrival 7Edge Folded Ring Surround Repair Kit - IIR Rubber surround used on loudspeaker – Nandi Yanlong detail pictures

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Fast and great quotations, informed advisers to help you choose the correct solution that suits all your requirements, a short creation time, responsible top quality manage and distinct providers for paying and shipping affairs for Newly Arrival 7Edge Folded Ring Surround Repair Kit - IIR Rubber surround used on loudspeaker – Nandi Yanlong , The product will supply to all over the world, such as: Greece, Nigeria, Victoria, We sincerely hope to cooperate with customers all over the world, if you would like to have more information, make sure you kindly contact us, we have been looking forward to building up a great business relationship with you.
    • The sales manager is very patient, we communicated about three days before we decided to cooperate, finally, we are very satisfied with this cooperation!
    5 Stars By Wendy from San Diego - 2018.08.12 12:27
    The customer service staff is very patient and has a positive and progressive attitude to our interest, so that we can have a comprehensive understanding of the product and finally we reached an agreement, thanks!
    5 Stars By Novia from India - 2017.08.18 11:04
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