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factory Outlets for 11Edge Folded Ring Surround Repair Kit - IIR Rubber surround used on loudspeaker – Nandi Yanlong Featured Image
  • factory Outlets for 11Edge Folded Ring Surround Repair Kit - IIR Rubber surround used on loudspeaker – Nandi Yanlong
  • factory Outlets for 11Edge Folded Ring Surround Repair Kit - IIR Rubber surround used on loudspeaker – Nandi Yanlong
  • factory Outlets for 11Edge Folded Ring Surround Repair Kit - IIR Rubber surround used on loudspeaker – Nandi Yanlong
  • factory Outlets for 11Edge Folded Ring Surround Repair Kit - IIR Rubber surround used on loudspeaker – Nandi Yanlong

factory Outlets for 11Edge Folded Ring Surround Repair Kit - IIR Rubber surround used on loudspeaker – Nandi Yanlong

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We thinks what clients think, the urgency of urgency to act from the interests of a purchaser position of principle, allowing for greater top quality, decrease processing costs, price ranges are much more reasonable, won the new and aged prospects the support and affirmation for Multiple Shapes Optional Dust Cap For Speaker , 12"Horn Surround , 9 Inch Speaker Cone , Created products with brand value. We attend seriously to produce and behave with integrity, and by the favor of customers at home and abroad in the xxx industry.
factory Outlets for 11Edge 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:

factory Outlets for 11Edge Folded Ring Surround Repair Kit - IIR Rubber surround used on loudspeaker – Nandi Yanlong detail pictures

factory Outlets for 11Edge Folded Ring Surround Repair Kit - IIR Rubber surround used on loudspeaker – Nandi Yanlong detail pictures

factory Outlets for 11Edge Folded Ring Surround Repair Kit - IIR Rubber surround used on loudspeaker – Nandi Yanlong detail pictures

factory Outlets for 11Edge Folded Ring Surround Repair Kit - IIR Rubber surround used on loudspeaker – Nandi Yanlong detail pictures

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"Quality first, Honesty as base, Sincere service and mutual profit" is our idea, in order to develop continuously and pursue the excellence for factory Outlets for 11Edge Folded Ring Surround Repair Kit - IIR Rubber surround used on loudspeaker – Nandi Yanlong , The product will supply to all over the world, such as: Guyana, Czech republic, Iran, Due to the stability of our items, timely supply and our sincere service, we are able to sell our merchandise not only over the domestic market, but also exported to countries and regions, including the Middle East, Asia, Europe and other countries and regions. At the same time, we also undertake OEM and ODM orders. We will do our best to serve your company, and establish a successful and friendly cooperation with you.
    • Cooperate with you every time is very successful, very happy. Hope that we can have more cooperation!
    5 Stars By Belle from Sao Paulo - 2018.08.12 12:27
    This is the first business after our company establish, products and services are very satisfying, we have a good start, we hope to cooperate continuous in the future!
    5 Stars By Cindy from Lithuania - 2017.08.21 14:13
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