Discount wholesale Foam Rubber Surround/Edge For Speaker – NBR Rubber surround used on loudspeaker – Nandi Yanlong

Short Description:


Product Detail

Product Tags

Related Video

Feedback (2)

Our development depends on the advanced equipment ,excellent talents and continuously strengthened technology forces for Sound Basin Edge Repair Kit , Rubber Edge Speaker Repair Kit , 18"Speaker Surround , Many years of work experience, we have realized the importance of providing good quality products and the best before-sales and after-sales services.
Discount wholesale Foam Rubber Surround/Edge For Speaker – NBR Rubber surround used on loudspeaker – Nandi Yanlong Detail:

Excellent oil resistance, good wear resistance, good heat resistance,strong adhesion

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 NBR 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 80000pcs/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.

A surround is part of the sub’s suspension system. The surround protects the cone and prevents it from being displaced as it flexes out from the basket. It is usually made of a durable material like treated foam or rubber in order to withstand the strenuous job of producing bass frequencies.

Nitrile -butadiene rubber (also known as NBR rubber) was developed during the 1930s. It is fabricated through the co-polymerization of acrylonitrile (ACN) (polar building block) and 1.3-butadine (nonpolar building block). It is the seal industry’s most widely used and economical elastomer. This is partly because it displays excellent resistance to petroleum-based oils, fuels, water, alcohols, silicone greases and hydraulic fluids. Nitrile has a temperature range of between -54 and +149 degrees Celsius and has a good balance of desirable properties like low compression set, high abrasion resistance and high tensile strength. 

  • Guangdong Nandi Yanlong Technology Co., Ltd.
  • Low temperature tensile test of rubber materials NBR
Lab Date: 2022.05.11-05.13 Lab Model:ND158-399
No. Model Lab Conditions Time Lab Temp Test result Test Diff
5 NBR65-2 1 Vulcanization conditions: 12H 23℃ Peak value Disp Str FO Peak value Disp Str FO
Suface Temp Mold Temp Time Pressure Cap 12H -40℃ 33.92 36.53 2.25 35 -0.05 +2.30 -0.01 +1
190/195℃ 170/175℃ 45S 8kg/C㎡ 65T 24H -40℃ 40.42 43.17 2.69 36 +6.50 +9.25 +0.44 +1
2 100 ° 2-hour twice vulcanization. 36H -40℃ 41.22 45.22 2.74 36 +0.80 +2.05 +0.05 0
3 Tension machine speed: A is 10 and B is 100 48H -40℃ 41.5 44.32 2.76 36 +0.28 -0.90 +0.02 0
4 Tension plate:45mm*10mm*0.5mm 96H -40℃ 36.8 40.07 2.45 36 -4.25 -4.25 -0.31 0
5 Lab temp: 25℃±2℃, humidity 65%±30% Avg 38.772 41.862 2.76 35.8 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

logo

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:

Discount wholesale Foam Rubber Surround/Edge For Speaker – NBR Rubber surround used on loudspeaker – Nandi Yanlong detail pictures

Discount wholesale Foam Rubber Surround/Edge For Speaker – NBR Rubber surround used on loudspeaker – Nandi Yanlong detail pictures

Discount wholesale Foam Rubber Surround/Edge For Speaker – NBR Rubber surround used on loudspeaker – Nandi Yanlong detail pictures

Discount wholesale Foam Rubber Surround/Edge For Speaker – NBR Rubber surround used on loudspeaker – Nandi Yanlong detail pictures

Discount wholesale Foam Rubber Surround/Edge For Speaker – NBR Rubber surround used on loudspeaker – Nandi Yanlong detail pictures

Discount wholesale Foam Rubber Surround/Edge For Speaker – NBR Rubber surround used on loudspeaker – Nandi Yanlong detail pictures


Related Product Guide:

We support our purchasers with ideal high-quality merchandise and significant level company. Becoming the specialist manufacturer in this sector, we now have received loaded practical encounter in producing and managing for Discount wholesale Foam Rubber Surround/Edge For Speaker – NBR Rubber surround used on loudspeaker – Nandi Yanlong , The product will supply to all over the world, such as: Burundi, Victoria, United States, 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.
  • In general, we are satisfied with all aspects, cheap, high-quality, fast delivery and good procuct style, we will have follow-up cooperation!
    5 Stars By Jodie from Hungary - 2018.07.12 12:19
    Good quality and fast delivery, it's very nice. Some products have a little bit problem, but the supplier replaced timely, overall, we are satisfied.
    5 Stars By Laurel from Paraguay - 2017.12.31 14:53
    Write your message here and send it to us

    related products