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  • AUTOMATIC DROP DOWN MORTICED DOOR BOTTOM SEAL
  • AUTOMATIC DROP DOWN MORTICED DOOR BOTTOM SEAL
  • AUTOMATIC DROP DOWN MORTICED DOOR BOTTOM SEAL
AUTOMATIC DROP DOWN MORTICED DOOR BOTTOM SEAL

AUTOMATIC DROP DOWN MORTICED DOOR BOTTOM SEAL

$13.00-$15.00/ Piece|100 Piece/Pieces(Min. Order)

Customization:

Customized logo（Min.Order: 500 pieces）
Customized packaging（Min.Order: 500 pieces）
View product details

AUTOMATIC DROP DOWN MORTICED DOOR BOTTOM SEAL

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • Automatic Drop-Down Sealing: Seamlessly adjusts to uneven floors and gaps, ensuring a tight seal to block drafts, dust, and noise.
  • Morticed Design Integration: Embeds directly into door frames for enhanced security, aesthetics, and soundproofing performance.

Key features

  • 1. Corrosion-Resistant Aluminum Construction

    • With corrosion-resistant aluminum material, you can ensure long-lasting durability in high-moisture or high-traffic commercial environments*.

  • 2. Automatic Drop-Down Design

    • With an automatic drop-down mechanism, you can achieve effortless sealing without manual adjustments, enhancing user convenience and operational efficiency*.

  • 3. Superior Soundproofing Performance

    • With advanced soundproofing technology, you can reduce external noise by up to 85%, creating a quieter workspace ideal for office environments*.

  • 4. Commercial-Grade Versatility

    • Designed for commercial use, this seal provides continuous performance in high-traffic areas, ensuring consistent noise and draft prevention even under constant use*.

  • 5. Compliance with Commercial Building Standards

    • With certification to international acoustic insulation standards (e.g., ISO 140-3), you can ensure regulatory compliance for commercial building applications*.

Product details

AUTOMATIC DROP DOWN MORTICED DOOR BOTTOM SEAL

The AUTOMATIC DROP DOWN MORTICED DOOR BOTTOM SEAL is a high-performance aluminum extrusion designed for seamless integration into doors and windows. Engineered for office buildings and commercial spaces, it combines soundproofing, durability, and adaptability to enhance structural integrity and environmental sealing.

Technical specifications

FeatureSpecificationBenefit
Material6063-T5 AluminumLightweight, corrosion-resistant, and strong
Soundproofing35 dB noise reduction (ASTM E90)Reduces external noise for quieter spaces
Structural SupportLoad capacity: 500 kg/m²Ensures stability in high-traffic areas
Automatic MechanismSpring-loaded drop-down designSelf-aligns to uneven floors for tight seals
Surface FinishAnodized or painted (customizable)Enhanced aesthetics and corrosion protection

Customization guide

Adjustable parameters include length (cut-to-size), flange thickness, and surface treatment to meet specific requirements such as:

  • Soundproofing: Increase flange depth for higher dB reduction.
  • Load Capacity: Reinforce cross-section for industrial applications.
  • Aesthetics: Choose anodized colors to match architectural designs.

Get inspired

Ideal for modern offices and commercial buildings, this seal ensures airtight, noise-free environments while maintaining structural reliability. Its automatic drop-down feature adapts to uneven floors, eliminating gaps that compromise energy efficiency or security.

Choose your model

ParameterBase ModelAdvanced ModelPro Model
Sound Reduction30 dB (standard)+15% (35 dB)+30% (40 dB)*
Load Capacity300 kg/m²450 kg/m²600 kg/m²
Corrosion ResistanceASTM B117 200 hrsASTM B117 400 hrsASTM B117 800 hrs
InstallationManual alignmentSelf-aligningSelf-aligning + tool-free adjustments

Supplier's note

  1. Technical Breakthroughs:

    • Soundproofing: The Pro model’s 40 dB rating exceeds industry standards by 33%, ideal for hospitals or recording studios.
    • Corrosion Resistance: Advanced anodizing in the Pro model triples lifespan in marine environments.
    • Adaptive Design: The self-aligning mechanism reduces installation time by 20% compared to traditional seals.

  2. Optimal Version Selection:

    • Base Model: Suitable for standard office doors where basic noise reduction and load capacity suffice.
    • Advanced Model: Recommended for hotels or schools needing mid-tier soundproofing and durability.
    • Pro Model: Best for industrial facilities or high-end commercial spaces requiring extreme resilience and noise control. With its 600 kg/m² load capacity, it ensures stability in heavy-use areas while its 40 dB rating creates soundproof sanctuaries.

Frequently asked questions

  • Which automatic drop-down door bottom seal is best for office building soundproofing?

  • How do I maintain an automatic drop-down door seal to prevent dust buildup?

  • Aluminum vs Rubber door seals: Which is better for outdoor door applications?

  • Can I customize the length of the automatic drop-down door bottom seal?

  • Is the automatic drop-down seal compatible with wooden doors?

  • Does the door bottom seal meet fire safety certifications?

  • How does the automatic drop-down seal improve door accessibility?

  • What’s the lifespan of an aluminum door bottom seal compared to plastic alternatives?

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
SoundproofingOffice buildings, hospitals, theatersIndustry Standard: 25 dBA (ISO 140-4)
Our Base: 30 dBA (▲)
Our Advanced: 35 dBA (▲▲)		Reduces ambient noise (e.g., 35 dBA quieter than a whisper)
Enhances privacy		Higher cost for advanced tiers
Base tier may require additional insulation
MaterialHigh-traffic areas, industrial settingsIndustry Standard: Plastic (20-year lifespan)
Our Base: Aluminum (▲ 30-year lifespan)
Our Advanced: Aluminum alloy (▲▲ 40-year lifespan, ASTM B221)		Lightweight yet durable
Resists corrosion (ASTM B117 salt spray test)		Base aluminum may be heavier than plastic
Advanced alloy requires specialized tools
Seal TypeWeatherproofing, fire safetyIndustry Standard: Basic rubber seal (IP5X)
Our Base: Hybrid silicone-aluminum (▲ IP65)
Our Advanced: Magnetic compression seal (▲▲ IP67)		Water/dust resistance (IP67 prevents submersion)
Fire-resistant up to 90°C		Advanced seal may require precise installation
Base hybrid has limited thermal tolerance
InstallationDIY projects, retrofittingIndustry Standard: Professional installation required
Our Base: Snap-fit design (▲ DIY-friendly)
Our Advanced: Auto-adjust mechanism (▲▲ Tool-free)		Reduces labor costs (Base: -40%, Advanced: -60%)
Quick deployment		Advanced mechanism may add bulk to door frames
Base lacks auto-adjust precision
DurabilityHigh-wear environments (e.g., schools)Industry Standard: 5,000 cycles (ASTM D5035)
Our Base: 10,000 cycles (▲)
Our Advanced: 15,000 cycles (▲▲, ASTM D3389)		Withstands heavy foot traffic
Low maintenance (no lubrication needed)		Base may degrade faster in extreme temperatures
Advanced requires periodic calibration
CustomizationSpecialty door designs, custom buildsIndustry Standard: Limited to standard sizes
Our Base: Cut-to-length (▲ 10% tolerance)
Our Advanced: Full-profile customization (▲▲ CAD-integrated)		Adapts to unique door shapes (e.g., curved edges)
Reduces waste in cuts		Advanced customization adds 20% to lead time
Base lacks complex profile options

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