Does the seal interfere with door locks?

No, the low-force system is self-leveling and does not conflict with the lock, latch, or closing mechanism.

What types of doors is this seal suitable for?

It is suitable for wood doors, interior doors, steel doors, commercial doors, exterior doors, and various hinge doors.

How is quality guaranteed?

We provide a pre-production sample before mass production and conduct a final inspection before shipment.

Automatic Aluminum Door Sound Insulation Aluminum Bottom Door Seal

Name: Automatic Aluminum Door Sound Insulation Aluminum Bottom Door Seal
Brand: XINGTAI BIHE IMPORT AND EXPORT TRADING CO., LTD.
SKU: 1963776261

Hebei, ChinaXINGTAI BIHE IMPORT AND EXPORT TRADING CO., LTD.

US$6.60

300 Sets

Sample price:US$10.00/set.Request sample

Product profile

Customization

Available

Color

Silver

Material

Metal

Model NO.

BHZDM

Thickness

2mm , 2.5mm

Usage

Commercial Doors, Exterior Doors, Interior Doors

Width

20mm

Material 1

Aluminium Alloy

Material 2

TPE Rubber Seal

Advantage

Long Using Life Compare with Plastic Bottom Seal

Funtion

Prevents Fire or Smoke Spreading Across Various Fi

Feature

Sound Proof, Smoke and Fire Prevention

Application

Wood Door, Interior Door, Steel Door, etc

Transport Package

Carton

Specification

H, T, U

Trademark

BIHE

Origin

China

HS Code

7616999000

Production Capacity

3000000/Year

Key features

Effective Soundproofing: Prevents sound transmission and drafts, suitable for high-frequency traffic areas.

Automatic Drop-Down Mechanism: Seals automatically when door closes via hinge-side plunger and flat spring mechanism.

Durable Material Composition: Made of 85% aluminium, 13% TPE, 1% steel, and 1% brass for long-lasting use.

Multi-Functional Sealing: Resists sand, dust, insects, and provides insulation and energy savings.

Self-Leveling Low-Force System: Does not conflict with locks or latches, preventing door hang-up or closing delays.

Customizable Dimensions: Available in 2mm and 2.5mm thickness; length can be intercepted to requirements.

Versatile Application: Suitable for wood, interior, steel, commercial, exterior, and interior doors.

Fire and Smoke Prevention: Helps prevent fire or smoke from spreading across various floors.

Company profile

Importers and ExportersHigh Repeat Buyers ChoiceYears of Export ExperienceFast Delivery

XINGTAI BIHE IMPORT AND EXPORT TRADING CO., LTD.

Hebei, China

Business Type: Manufacturer/Factory CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc.Export Year: 2013-10-01Nearest Port: TIANJIN, SHANGHAI, QINGDAOAverage Response Time: ≤6.40h

AI-Powered supplier vetting

SummaryThe supplier is identified as a limited trading company in Xingtai, Hebei, offering a broad range of rubber sealing and extrusion products. It demonstrates strong customization, ODM, and OEM capabilities, reports new product development during the past year, and exports to more than 30 countries, with exports representing 71%–90% of total sales. It has operated export activities for 12 years and holds self-operated import/export rights. Customer complaint handling has a clear procedure and records, while stated standard lead times are within 15 workdays in both peak and off-season periods. However, the evidence does not establish certifications, manufacturing capacity, quality assurance status, or verified financial strength. The supplier lacks overseas showrooms, overseas agents or branches, and offline trade-show participation. Raw-material traceability and sustainability-related controls are also unverified.

After-Sales capabilityThe supplier has a clear customer-complaint handling procedure with follow-up records and states that customer service is a priority. However, it has no overseas showroom, overseas agent or branch, or offline trade-show experience; its service reach is therefore supported mainly by internal procedures rather than an overseas service network.

R&D capabilityThe supplier reports new products within the past year and offers ODM services, indicating active product-development capability. It also explicitly lacks an available SDK, which limits evidence of software-development or SDK-based innovation.

Customization capabilityThe supplier explicitly offers customization from samples, customization from designs, full customization, minor customization, and flexible customization. It also provides ODM services, giving direct evidence of broad product customization and design-support capability.

Client casesThe supplier states that it provides OEM services for well-known brands and exports products to more than 30 countries and regions, including Europe, Southeast Asia, Australia, Japan, America, and South Korea. These statements indicate international customer experience, but no customer names, project details, or independently verifiable case studies are provided.

Product Q&A

Q:How does the automatic drop-down seal work?

It uses a hinge-side plunger with a flat spring mechanism. The seal drops automatically when the door closes to form a tight seal and retracts when the door opens.

Q:What materials are used in the seal?

The seal is composed of 85% aluminium, 13% TPE, 1% steel, and 1% brass, ensuring durability and long usage time compared to plastic seals.

Q:What are the available thickness options?

The product is available in 2mm and 2.5mm thickness options to suit different door requirements.

Q:Can the length of the seal be customized?

Yes, the length can be intercepted according to your specific requirements.

Q:What are the main functions of this seal?

It provides soundproofing, seals gaps to prevent drafts, resists sand, dust, and insects, and acts as insulation for energy savings.