Competitive Price for 5.25Edge Folded Ring Surround Repair Kit - IIR Rubber surround used on loudspeaker – Nandi Yanlong

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"Sincerity, Innovation, Rigorousness, and Efficiency" is the persistent conception of our company for the long-term to develop together with customers for mutual reciprocity and mutual benefit for 1"Foam Surround , Bmw Rubber Surround Speaker , Sound Basin Edge Repair Kit , Our products are new and old customers consistent recognition and trust. We welcome new and old customers to contact us for future business relations, common development. Let's speeding in the dark!

Competitive Price for 5.25Edge 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

IIR60

Vulcanization conditions:

12H

23℃

Peak value

Disp

Str

Peak value

Disp

Str

Suface Temp

Mold Temp

Time

Pressure

Cap

12H

-40℃

22.25

34.17

1.47

-2.40

-2.14

-0.17

190/195℃

170/175℃

45S

8kg/C㎡

65T

24H

-40℃

27.67

41.72

1.84

+5.42

+7.55

+0.37

100 ° 2-hour twice vulcanization.

36H

-40℃

25.90

37.56

1.72

-1.77

-4.36

-0.12

Tension machine speed: A is 10 and B is 100

48H

-40℃

26.17

38.02

1.74

+0.27

+0.46

+0.02

Tension plate:45mm*10mm*0.5mm

96H

-40℃

28.57

41.76

1.9

+2.40

+3.74

+0.16

Lab temp: 25℃±2℃, humidity 65%±30%

Avg

26.165

38.646

1.9

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

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!

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We have probably the most state-of-the-art output equipment, experienced and qualified engineers and workers, recognized good quality manage systems plus a friendly skilled income workforce pre/after-sales support for Competitive Price for 5.25Edge Folded Ring Surround Repair Kit - IIR Rubber surround used on loudspeaker – Nandi Yanlong , The product will supply to all over the world, such as: Cyprus, Japan, Russia, Our product quality is one of the major concerns and has been produced to meet the customer's standards. "Customer services and relationship" is another important area which we understand good communication and relationships with our customers is the most significant power to run it as a long term business.

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The factory can meet continuously developing economic and market needs, so that their products are widely recognized and trusted, and that's why we chose this company.