Precision Speaker Accessories for Global Brands

Guangdong Nandi Yanlong Technology Co., Ltd. (NDYL) is a leading Chinese manufacturer of high-end speaker components, including rubber surrounds, cone assemblies, dust caps, and passive radiators. With over 21 years of expertise and ISO14001 & IATF16949 certification, we deliver OEM/ODM solutions trusted by international audio brands.

Explore Products

30M+

Sets Sold Annually

21 Years

Industry Experience

50–100

Skilled Employees

Welcome to NDYL

Guangdong Nandi Yanlong Technology Co., Ltd. (“NDYL”) is a Chinese company specializing in manufacturing high-quality speaker accessories for the mid-to-high-end market. Located in South China and covering over 10,000 m², NDYL is committed to becoming a global leader in audio component supply.

With over two decades of experience, we provide OEM and ODM services to renowned international brands. Our products meet strict automotive audio standards and are used in premium sound systems, including 6.5-inch woofers for X-series audio equipment.

Our mission is to deliver reliable, durable, and acoustically optimized components that enhance sound performance across consumer electronics, automotive, and professional audio applications.

Our Product Range

We offer a comprehensive line of speaker components engineered for performance, durability, and precision. All products support customization and are available for OEM/ODM partnerships.

SBR Rubber Surround

• Range: 1" – 21"
• Excellent wear & aging resistance
• Good high/low temperature performance
• MOQ: 1 pcs | Lead time: 2–7 days

NBR Rubber Surround

• Range: 1" – 21"
• Excellent oil & heat resistance
• Strong adhesion to cone
• MOQ: 1 pcs | Lead time: 2–7 days

IIR Rubber Surround

• Range: 1" – 21"
• Superior air & water tightness
• Ideal for sealed enclosures
• MOQ: 1 pcs | Lead time: 2–7 days

Foam Rubber Surround

• Range: 1" – 21"
• High sensitivity & low-frequency tuning
• Lightweight & flexible
• MOQ: 1 pcs | Lead time: 2–7 days

EPDM Rubber Surround

• Range: 1" – 21"
• Excellent weather & UV resistance
• Long service life
• MOQ: 1 pcs | Lead time: 2–7 days

Rubber Dust Cap

• Waterproof & dustproof
• Multiple shapes available
• Materials: IIR, NBR, SBR, EPDM
• MOQ: 1 pcs | Lead time: 2–7 days

Custom Cone Assembly (Paper)

• Glue, cloth, or sponge edge options
• Sand blasting & surface treatments
• Full OEM/ODM support
• Range: 1" – 21"

Passive Radiator

• Enhances bass response
• Custom tuning available
• Durable rubber surround
• OEM/ODM supported

Why Choose NDYL?

21+ Years Expertise

Founded in 2001, we bring over two decades of focused innovation in speaker component manufacturing.

ISO Certified

Certified under ISO14001 and IATF16949, ensuring environmental responsibility and automotive-grade quality.

OEM/ODM Support

Full customization from design to mass production. We help bring your audio vision to life.

Global Reach

Trusted by international brands. Fast shipping via air, sea, or land to any destination.

Rigorous Quality Control

Every product undergoes strict testing to ensure reliability and performance. Our lab conducts:

• Vulcanizer Experiment
• Density & Hardness Testing
• Tensile & FO Testing
• 3D Projection & Sulfur Separation Trials

This ensures every rubber edge, cone, and cap meets the highest standards for durability and acoustic integrity.

Frequently Asked Questions

What materials do you use for rubber surrounds?

We use SBR, NBR, IIR, EPDM, and foam rubber, each selected for specific performance characteristics like oil resistance, temperature stability, and acoustic flexibility.

Do you offer custom designs?

Yes, we provide full OEM and ODM services. From cone shape to rubber compound, we customize to your specifications.

What is your minimum order quantity (MOQ)?

Our standard MOQ is just 1 piece for samples. Bulk orders start from 1,000 units with negotiable terms for large volumes.

Are your products used in automotive audio?

Yes, our components meet the admission standards for well-known car brands and are used in high-performance vehicle audio systems.

How long does production and shipping take?

Sample orders: 2 days. 1k–10k units: 7 days. Larger volumes: negotiable. We ship globally via air, sea, or land freight.

Get in Touch

Ready to partner with a trusted manufacturer of premium speaker components? Contact us today for pricing, samples, or custom development.

Email: vic@nandiyanlong.com

WhatsApp: +86 18258541968

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