Fireproof Door Auto Drop Seal

If the fire door need our automatic door Bottom?

In the event of a fire, the heat and flame are only running towards to the upside. Ressatech intumescent strips on fire doors will expand and seal gap around the three edges between frame and door.

A gap up to 10mm is permissible underneath a fire door bottom, but if the building regulations required that smoke protection is required, then the maximum gap underneath the door bottom reduces to 3mm. In this situation, Ressaseal has some designed automatic door Bottom for fire door drop sealing to maintain the integrity of the fire door.

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Learn More Product Details

In our product catalog, you can quickly browse our wide range of automatic door sweeps and other high-performance sealing solutions.

Each product is accompanied by detailed specifications, technical parameters and application scenarios to help you find the most suitable product for your needs.

Take a look now to learn more about our innovative and high-quality sealing solutions.

Full Tongue And Groove Automatic Door Bottoms For Fireproof Intumescent Door Bottom Seals

RMD/RPB01 44 *30 mm

Automatic Door Bottom

RMD/RPB02 37.5*21.5 mm

Automatic Door Bottom

RPB series flexible fireproof intumescent seal can be retrofitted to any automatic door sweep

RPB series flexible fireproof intumescent seal

RMD/RPB Series Fireproof Intumescent Automatic Drop Down Seal

In addition to the standard functions of an automatic door bottom strip, the RMD/RPB Series also provides fireproofing.
It is an excellent solution for sealing fireproof doors.

The fire door sweep consists of two sections:
Inner part: The body of the automatic drop-down seal.
Outer part: A fireproof strip that protects the body from flames during a fire.
Function in Case of Fire

When exposed to flames, the fire seal section quickly reacts by intumescing to protect the bottom bar of internal automatic doors.
Effectiveness in Blocking Fire and Smoke

Due to the remarkable intumescent effect, the fireproof seal not only protects the door bottom but also helps block the doorway.

This prevents the spread of flames and smoke, enhancing safety in case of fire.

How can installing automatic door sweeps on fire doors help prevent fires?

Seals Gaps: Automatic door sweeps seal the gap at the bottom of the fire door, preventing the spread of smoke, heat, and gases during a fire.

Automatic Activation: The sweep automatically lowers when the door closes, ensuring the seal is always in place without manual intervention.

Improves Fire Resistance: By sealing the door tightly, it helps maintain the fire door’s integrity, enhancing its ability to resist fire and smoke.

Increases Safety: Containing smoke and fire within the affected area gives occupants more time to evacuate safely, reducing the risk of injury .

Get Your Custom Automatic Door Bottom for Door Bottom Sealing

Ressaseal is a trusted manufacturer of automatic door Bottom containers with years of experience in creating high-quality drop down seals for doors bottom and fire doors bottom sealing. It specializes in manufacturing high-quality auto door bottom seals cover various needs of customers. Here are your custom selections:

Size

Our door Bottoms are available in standard lengths like 915mm and we can also provide custom-cut sizes from 600-2200mm to fit the unique dimensions of any door bottom sealing, ensuring a perfect fit and optimal functionality.

Material

Our automatic door Bottom use 6063 aluminium frame, the frame thickness from 1.2mm-1.8mm. You can select from different seal materials such as silicone, rubber, PVC, TPE or brush options depending on desired durability.

Design

From surface mortised type, surface mounted type to semi mortised type, some design for interior doors and some for fire doors.Select a design that aligns with your architectural style or provide us with a design concept to realize.

Shape

Whether you need a straight, angled, or contoured profile, we can shape the door bottom Bottom to accommodate various door styles and thresholds, ensuring a proper soundproof and acoustic seal and aesthetic coherence.

Logo

Brand your door automatic bottom Bottoms by integrating your company logo directly onto the product and on the carton package is avilable, offering enhanced brand visibility and a mark of quality to your clients.

Color

Choose from a wide spectrum of colors to match your door or interior design. Our door Bottoms can be produced in standard colors alluminium or tailor-made to your specific color code for seamless integration.

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Features that Make Our Automatic Door Bottom Unique

Design Ability

Our automatic door Bottoms feature an exclusive glide mechanism that allows for smoother, silent operation. Unlike standard Bottoms, our design ensures there’s no sticking or dragging, providing seamless functionality every time.

Superior Soundproofing

Incorporating advanced soundproof sealing materials, our automatic door Bottoms are industry leaders in reducing noise transmission as acoustic door Bottom, provide more peaceful interior door environments in home improvement.

Eco-Friendly Materials

We are committed to sustainability, using eco-friendly materials in our automatic door Bottoms. These materials are not only durable but also contribute to a greener planet, resonating with environmentally conscious consumers.

Easy DIY Installation

Our product comes with a simplified installation kit and instructions, making it accessible for DIY enthusiasts. This user-friendly approach is a standout feature that minimizes installation costs and time.

Manufacturing Process of Automatic Door Bottom

Material Selection We begin our manufacturing process by selecting premium-grade materials like aluminum and seal material, ensuring our automatic door Bottom best auto performance.
Precision Engineering Our door Bottoms are designed with precision engineering. Utilizing state-of-the-art CAD software, each component is crafted to exact specifications, ensuring a perfect fit and optimal functionality for every door soundproof sealing performance.
Eco-friendly Fabrication Emphasizing sustainability, our fabrication process employs eco-conscious practices. We use energy-efficient machinery and recycle excess materials, reducing our carbon footprint and making our automatic door Bottoms an eco-friendly choice.
Assembly Line Assembly the sealing gasket like rubber pvc tpe or epdm rubber with the parts of 6063 aluminum profiles.
Final Inspection and Packaging Before packaging, each automatic door Bottom passes a final inspection to ensure it meets our exacting criteria. Our packaging is then carefully designed to provide protection during shipping while being mindful of waste reduction.

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Ready to Get the Perfect Automatic Door Bottom for Door Bottom Sealing ?

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Automatic Door Bottom FAQs

What is an Automatic Door Bottom?

An Automatic Door Bottom is a mechanical device attached to the bottom of a door that automatically lowers a seal to auto block gaps when the door is closed, helping to prevent drafts, noise, and pests from entering a space.

How does an Automatic Door Bottom Work for Door Bottom Sealing?

When the door is closed, the Bottom automatically lowers a sealing strip (usually made of rubber or brush) against the floor or threshold. When the door opens, the Bottom retracts, allowing the door to move freely.

Do Automatic Door Bottoms Require Power or Batteries to Operate?

No, they operate mechanically. The movement of the door itself activates the Bottom, so no external power or batteries are required.

If I Fit an automatic door Bottom, do I Need to Fit a Threshold Plate Too?

A threshold plate is a good idea, for several reasons:

It will help to ensure a good seal is maintained at the threshold, by giving a firm surface for the automatic door Bottom to rest against.
It can help to prevent weather ingress when used as part of a storm-guard system
If you are sealing dissimilar surfaces (eg, carpet and vinyl), the threshold plate can cover the join to prevent both wear and tripping hazards. Our threshold ramps can also easily accommodate differences in floor heights, to make access easier for all.
If your floor surface is particularly liable to wear and tear in places below the door (eg, a high level of traffic, or over a carpet that may become compressed over time), then a threshold plate will help to prevent these uneven areas affecting the threshold sealing.
Please refer to our threshold plates and ramps for further details.

Can Automatic Door Bottom for Different Gap Sizes for Different Door Bottom Sealing?

Yes, many models offer adjustable height settings to accommodate different gap sizes and ensure a proper seal.

I'm Working on a Hospital Project that Needs a Sealing System that will Stand up to Rigorous Cleaning. What do you Recommend?

We’d recommend you consider using a silicone rubber seal overal type automatic door Bottom seals. There are perimeter and threshold sealing products included, and both the carriers and gaskets are impervious to most strong cleaning chemicals, making them ideal for hospitals.

Please note that while these seals will provide a comprehensive smoke sealing solution, if you have a fire rated door then an appropriate fire seal should be fitted in addition.

Any chance we could get a bigger ball race, the small one is inclined to catch on edges?

Regarding larger ball bearings, we recommend another one for the pivot door seal – RMD-Pivot02.
a) The ball bearings of RMD-Pivot02 are larger than those of RMD-Pivot01.
b) RMD-Pivot02 is 14mm higher than RMD-Pivot01.
c) RMD-Pivot02 is a little heavier than RMD-Pivot01.
Please check the picture comparison of RMD-Pivot01 and RMD-Pivot02.