How do you guarantee product quality?

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

What are the main functions of this seal?

It provides soundproofing, seals gaps, prevents fire and smoke spreading, and resists sand, dust, insects, and drafts.

What is the lead time for orders?

The average lead time is within 15 workdays for both peak season and off-season periods.

Drop Down Acoustic Seal Automatic Door Seal

Name: Drop Down Acoustic Seal Automatic Door Seal
Brand: XINGTAI BIHE IMPORT AND EXPORT TRADING CO., LTD.
SKU: 1963851461

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

US$5.50

300 Sets

Sample price:US$10.00/set.Request sample

Product profile

Customization

Available

Color

Silver

Material

Metal and Rubber

Model NO.

BHZDM

Thickness

2mm , 2.5mm

Usage

Commercial Doors, Exterior Doors, Interior Doors

Width

915mm and as Per Requirement

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

Automatic Drop-Down Mechanism: Self-leveling hinge-side plunger with flat spring; retracts on open, seals on close.

Multi-Function Sealing: Prevents sound, smoke, fire, drafts, sand, dust, and insect invasion effectively.

Durable Material Composition: 85% aluminium, 13% TPE, 1% steel, 1% brass for long life compared to plastic seals.

Customizable Dimensions: Width available in 915mm or as per requirement; length can be intercepted to fit.

Versatile Door Compatibility: Suitable for wood, interior, steel, exterior, and commercial hinge doors.

No Electric Components: Mechanical operation ensures reliability without electrical maintenance or conflicts.

12 Years Manufacturing Expertise: Specialized in rubber sealing products with competitive price and stable quality.

Quality Assurance Process: Pre-production samples and final inspections guaranteed before mass shipment.

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: ≤6.82h

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. It 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 made of 85% aluminium, 13% TPE, 1% steel, and 1% brass, providing a longer lifespan compared to plastic bottom seals.

Q:Can the width and length be customized?

Yes, the width is available in 915mm or as per requirement, and the length can be intercepted according to your specific needs.

Q:What types of doors is this seal suitable for?

It is suitable for a variety of hinge doors, including wood doors, interior doors, steel doors, exterior doors, and commercial doors.

Q:Does the seal require electricity to operate?

No, it works on a mechanical flat spring mechanism with no electrics to deal with, ensuring low-force self-leveling operation.