Update: Add a product to your cart to see accurate delivery dates for your pincode.

Shopping cart

Nankarrow DropTwin™ 54dB Soundproof Dropdown Seal for Wooden Doors

(1 customer review)
Out of stock
Nankarrow DropTwin™ 54 dB Soundproof Dropdown Seal  Features:
  • Double sound-insulating seal in self-extinguishing co-extruded thermoplastic
  • Made in Italy
  • Application: Timber doors.
  • Length: 930 mm
  • Trimming lengths: Up to 110 mm on the opposite side to the plunger. Length 330 can be shortened 50 mm.
  • Fixing type: With screws (supplied).

8,280.00 incl GST

Out of stock

Back-in-stock notification

Bulk/Project Enquiry

Product Description

Your neighbors may have heard you belt out a song or two before. You’re also pretty sure they know all of the lyrics to your favorite song — word for word. So you like to sing and listen to music throughout the day. There’s nothing wrong with that, is there? Don’t stifle your musical endeavors for fear of unwanted critiques or complaints from neighbors. Invest in the appropriate soundproofing materials instead.

One of the most common ways noise transfers is through cracks and openings in walls, windows and, most importantly, doors. If your door has gaps even when closed, it may be time to invest in the Nankarrow DropTwin™ 54dB Soundproof Dropdown Seal for Wooden Doors

When you close your door, you expect the entry to your room to be snuggly and efficiently shut. Unfortunately, this is not always the case, as many doors leave openings even when closed entirely. Our line of automatic soundproof door sweeps provide a form-fitting tight seal against the threshold of your door, ensuring no noise gets in while guaranteeing sound from within is kept from getting out.

Nankarrow DropTwin™ sweeps are automatic as well, which means they perform their job without any effort required on your end. Simply shut the door, and your automatic soundproof Nankarrow DropTwin™ seal will take care of the rest!

To solve the problem of sound leakage in wooden & security doors for high performance applications like recording studios, auditoriums, cinemas, and home theaters, with high degree of fire resistance, the Nankarrow DropTwin™ is your best bet. This double drop-down seal is for wooden doors and walls of simple and easy fitting. At its core is the double sound-insulating seal made from self-extinguishing coextruded thermoplastic.

Nankarrow DropTwin™ 54 dB Soundproof Dropdown Seal  Features:

  • Made in Italy
  • Application: Wooden doors, Security Doors.
  • Length: 930 mm
  • Trimming lengths: Up to 150 mm on the opposite side to the plunger.
  • Fixing type: With preassembled woodscrews or self-tapping screws
  • Plunger and adjustment type: Double plunger with striker plates supplied as standard.
  • Seals: Double Sound-insulating seal in self-extinguishing thermoplastic.

Nankarrow DropTwin™ 54 dB Soundproof Dropdown Seal  Technical Specifications:

  • Double sound-insulating seal in self-extinguishing co-extruded thermoplastic
  • Double adjustment mechanism controlled by two plungers.
  • Graduated scissor action (seal drops on hinge side before lock side).
  • 14 mm maximum drop.
  • Galvanised steel flat springs and actuators in PA reinforced with 20% glassfibre.
  • 6060 T6 aluminium alloy profiles.
  • Mechanism removable from hinge side after fixing.
  • Closing plug included.
  • Download Nankarrow DropTwin Technical Specfications


  • Acoustic certification by IFT Rosenheim.
  • Tested to 200,000 closing cycles.


  • Auditoriums
  • Recording Studios
  • Home Theaters
  • Commercial Cinemas
  • Conference Rooms
  • Office Cabins
  • Security Doors


Weight .5 kg
Units in Box



Auditorium, Home Theater, Recording Studios

Share your thoughts!

4 out of 5 stars

1 review

Let us know what you think...

What others are saying

  1. Requires Perfect Installation

    Pankaj Ojha

    Does the job really well! All I can say is that in order for it to function well, you need to install it correctly.

    (0) (0)

    Something wrong with this post? Thanks for letting us know. If you can point us in the right direction...




Your personal data will be used to support your experience throughout this website, to manage access to your account, and for other purposes described in our privacy policy.

Continue as a Guest

Don't have an account? Sign Up

Our head-office is in Mumbai; however, we don’t have a showroom or physical stores. We're an online company - we distribute our products online all over India via a distributed warehousing system - we have warehouses in 8 locations. Since our products are technical and used for solving specific acoustic problems, they do not attract walk-in customers. If you want to buy our products, just place your order online or reach out to us via the contact forms.
We do not offer Cash on Delivery. Our products are extremely large and bulky - you can fit a human being into most of our boxes. As a result, one of the highest costs in running this company is the money paid to courier companies like Fedex, XPressBees, etc, which runs into crores of rupees annually. If we allowed COD and the buyer changes their mind and refuses to pay during delivery, we incur double shipping costs (a) for sending the product to the buyer + (b) for shipping the product back to our warehouses. In some cases, this may be more than the value of the product itself. For this reason, we find it impossible to offer Cash on Delivery.
We follow maximum transparency in showing you actual delivery dates at a product level. The exact delivery dates are visible on each product page, cart page, checkout page, as well as your order confirmation emails. Once your order is shipped, regular shipping updates are provided via SMS.
We supply products only. We're an ecommerce company and our focus is on importing, distributing, manufacturing, and supplying a wide range of technical isolation & acoustic products across India. For installation you can engage local contractors / carpenters. Please contact us if you need specific information on installing any product in our catalog.
We accept returns upto 30 days from the date of receipt of product. If you need to return a product, just contact your sales representative and we will arrange a reverse pickup via Fedex. Your refund will be processed within 3 days after we get it back. We charge a 15% fee for restocking the product so this is subtracted from your refund. This is waived off if you have not removed a product from it's original packing and are returning it unused.
Your order could be in several spots... our warehouse, our custom-shop manufacturing units, anticipating dispatch, with the courier on its way, or conveyed. The principal thing to check is have you had your dispatch email? If yes, at that point it's en route. You can track your order by clicking your tracking link from that email. In the event that you haven't got your dispatch email within a week of placing your order, please do contact us.
ONLINE PAYMENTS: Pay us via Netbanking, credit cards, debit cards, wallets, or UPI via our online payment gateway. Over 95% of our customers use this option as it is fast and secure. CHEQUE/DD/DIRECT CASH DEPOSIT: You can deposit a cheque OR Demand Draft OR do a cash deposit into any of our Bank's ATM dropbox/branch near you. The cheque should be in favour of AURAL EXCHANGE and you must mention our account number behind the cheque. You can also mail us At-Par Cheques and Demand Drafts. Please do not mail us cheques unless they are "At Par" cheques. Company Name : Aural Exchange Bank Name : HDFC Bank Account No : 50200021982013 Branch : Sahar Road Branch ( Vile Parle East) IFSC Code : HDFC0000668
Our limited warranty covers any manufacturing defects in materials and workmanship (excluding normal wear and tear) for the products listed below that are purchased in India. We offer 1-5 year warranties depending on the brand. You can view warranty information on the individual product pages. You are solely responsible for all shipping and insurance costs for returning the product to Aural Exchange, and you will not be reimbursed or compensated for any loss or damage incurred during return shipping. Aural Exchange will at its sole discretion repair or replace the product. Should the product no longer be available, we reserve the right to exchange this with a product of similar performance and value. Due to different dye lots, Aural Exchange cannot guarantee exact colour match. This Warranty shall solely extend to the original owner and is limited to manufacturing defects and excludes damage due to improper installation, freight handling, wear and tear, abuse, misuse, misapplication, colour fading or deterioration due to prolonged exposure to ultra violet light, smoke, humidity, water exposure, or other environmental factors. It is understood that the use and suitability of the product is entirely the responsibility of the buyer or specifying engineer and as such, these parties agree to hold Aural Exchange, or its associated company, and/or officers, harmless from any responsibility whatsoever other than what is clearly outlined in this warranty.
This warranty is void if the product is found to have been tampered with or misused by the purchaser, and shall not apply if the product has been physically damaged intentionally or due to accident and/or neglect, including burns, cuts, water damage, fungus, mold, stains, or is otherwise abnormally soiled or unsanitary. Any problems that are caused by abuse, misuse, or weather-related destruction are not covered. Products designed to customer supplied specifications and/or using or including a) customer supplied materials or b) non-standard production techniques or materials are not covered. Also, consequential and incidental damages are not recoverable under this warranty. Additionally, the products listed below are not covered under this warranty: 1. Accessories & Enhancements 2. Installation Materials 3. Product Samples To minimise colour-fading of acoustic foam products due to exposure to oxygen and ultra violate light, carbon is employed during the colouring process. This does not guarantee the colour fastness of the foam component and you should expect the appearance to change over time. Colour fastness is not covered under the Warranty. This warranty does not cover damage to furniture or equipment caused by contact with or destabilization of the foam components or adhesives and hardware used for installation. Care should be taken when placing the product on finished wood surfaces or other surfaces to ensure there will not be a chemical interaction between the surface finish and the foam component.