US-HF-003 Drop Down Door Seal Aluminium 1030mm Dual Adjustment Acoustic 44dB

Product Overview

The Uszczelka opadająca 1712 alu. DL 1030 mm (US-HF-003) is an automatic drop-down door seal designed for threshold use on wooden or PVC doors, as well as acoustic, smoke-proof, and fire-rated door assemblies. Its exterior housing is constructed from aluminium, with a sealing profile made from black silicone for durability in both residential and commercial environments where enhanced sealing and regulatory compliance are required.

A distinctive feature of this model is its dual adjustment mechanism, allowing precise control of both the projection length and the tilt angle of the seal. This versatility reduces installation errors and helps meet demanding specifications for noise, smoke, or air-tightness barriers. The product is particularly well-suited for large-scale fit-out projects in hotels, office buildings, or public facilities requiring certified acoustic insulation and fire protection systems.

Key Features

• Acoustic insulation 44dB ? tested at a 6 mm gap for compliance with high soundproofing requirements


• Dual adjustment ? allows regulation of both drop length and tilt angle for accurate installation


• Maximum sealing height 18 mm ? suitable for uneven floors and wider door-to-floor gaps


• Aluminium housing ? corrosion-resistant and lightweight for long service life


• Silicone sealing profile ? ensures flexible, tight sealing even in frequent-use environments


• Automatic drop-down action ? activates seal only when door is closed to minimize wear


• Cuttable design ? seal length can be shortened up to 100 mm for on-site fitting

Technical Specifications

• Seal Type: Automatic drop-down threshold seal


• Material (Housing): Aluminium


• Material (Seal): Black silicone


• Length: 1030 mm (cuttable by up to 100 mm)


• Acoustic Insulation: 44 dB at 6 mm gap


• Maximum Sealing Height: 18 mm


• Mounting Groove: 12 x 28.5 mm required


• Adjustment: Dual (drop length and tilt angle)


• Compatible Door Types: Wooden, PVC, acoustic, smoke-proof, fire-rated

Applications

Used in the installation of wooden or PVC doors, including those requiring acoustic dampening, smoke prevention, and fire resistance certifications. Commonly applied in hotels, schools, office buildings, theaters, and public facilities for doors where a threshold seal is required to meet sound insulation, smoke containment, or building code requirements. Compatible with new construction or retrofit projects.

Packaging & Shipping

Standard export packaging. Unit includes the aluminium drop seal, mounting accessories, and an installation manual.