Start by checking if there is anything in the way, such as objects in the rails or in front of the gate. Remove any obstacles.

If it's a freezer door, ice or frost in the rails could be the culprit. Remove it carefully so the door can move freely again.

It's also a good idea to look at the drive wheels - if they're loose, worn or crooked, this can cause problems. Adjust or replace them as needed.

There can be several reasons why the gate is not sliding properly:

• It needs lubrication: Use a lubricant suitable for low temperatures and lubricate both rails and rollers.

• Dirt, dust or ice in the way: Clean rails and rollers thoroughly.

• Rails or brackets are crooked or loose: Check if anything is out of place - and straighten or tighten it.

• The rollers are worn or damaged: If the rollers no longer run smoothly, they should be replaced.

Regular maintenance can make a big difference - and save you trouble in the long run.

If the door doesn't close properly, it could be due to worn or broken sealing strips, among other things. Check the sealing strips and replace them if they are worn or broken.

Also, make sure that there are no objects in the closing field that could prevent the door from closing tightly. 

A door that doesn't close tightly can affect both the indoor climate and energy consumption, so it's well worth fixing it quickly.

Sliding doors for cold and freezer rooms are generally designed with safety components that prevent the door from falling down.

To ensure that they work as intended, regular service and inspection is important. In particular, check brackets, suspensions and stop mechanisms and make sure that all parts are properly fitted and intact.

If in doubt, you should always have a professional inspect the gate. Safety comes first.

To ensure that the door functions optimally and extends its lifetime, it is recommended to have it inspected and maintained at least once a year. However, more frequent inspections may be necessary if the door is used a lot or exposed to extreme conditions, such as in cold or freezer rooms.

Regular maintenance helps detect and fix small issues before they develop into major damage.

Yes, there are several parts of the door that require regular cleaning and lubrication to ensure optimal function.

These things should be checked at least once a month:

Sealing gaskets: If the sealing strips are worn or broken, the door will not close properly. 

Drive wheel: When the drive wheel has either become deformed when the diameter is down to Ø56 or when the wheel axle starts to touch the guide rail, it must be replaced.

Access door / emergency hatch: If the sliding gate has a built-in wicket door or emergency hatch, the hinges, handles and lock boxes must be function tested and lubricated.

DAN-doors provides a wide range of fire solutions so you can find the solution that best suits your needs in terms of fire class, aesthetics and functionality.

We supply all industries and our range includes:

• Hinged fire doors
• fire sliding doors
• fire curtains
• Fire shutter
• profile doors (glass doors) for fire
• Solutions for smoke ventilation.

• EI: European classification where "E" stands for integrity (flame/smoke tightness) and "I" for insulation (temperature rise on the non-fire side). The number indicates minutes (e.g. EI60 = 60 minutes).

• EI1/EI2: Both are European standards, where EI1 has stricter requirements for temperature rise than EI2. EI2 is most commonly used in ordinary buildings, while EI1 is chosen for particularly demanding environments.

• DS/BD/BS: Danish standard where BD30/BS60 means 30 or 60 minutes fire resistance respectively. These are still used for certain interior doors where European regulations do not yet apply.

• European standards (EN 16034, EN 1634-1) require CE marking and are used for fire doors, fire protection doors and external fire doors.

• The Danish standard (DS 1052, BD/BS) continues to apply to internal hinged fire doors and fire doors for passenger traffic that cannot yet be CE marked.

A certified fire door has a mark/label with information about the manufacturer, fire resistance (e.g. EI60), year of production and any third-party certification. If the label is missing, the door cannot be documented as a fire door.

Fire doors and gates should be inspected at least once a year. This includes checking for visible damage or defects and making sure that everything is working properly. The inspection must be carried out by a professional and documented - otherwise it may affect insurance coverage.

If the door has an automatic fire door closure (ABDL), it should be checked every three months. Doors with older approvals and fusible links still need an annual inspection as part of overall fire protection.

Escape routes and emergency exits should also be inspected at least once a year. This applies especially to hinges, locks and fittings - and it's also a good idea to have a professional carry out the inspection.

A fire door must be equipped with a door closer if this is stated in the door's approval and installation instructions. This is typically the case as the door closer ensures that the door always closes automatically after use, which is crucial for the fire door's function as a fire separating building element.

Fire doors classified as self-closing (e.g. with ABDL systems) must always have a door closer or door automation installed and this must be stated in the documentation and labeling on the door

Yes, it is definitely possible to get fire doors with glass or windows.

At DAN-doors we offer fire-resistant profile doors, which are designed with custom-made steel profiles that have a fire-resistant core. These doors are tested and approved according to fire classes EI30, EI60 and EI120.

This means you can get a fire door with glass that meets the necessary safety requirements without compromising on design.

Fire resistant profile doors are ideal for modern offices, commercial buildings, schools, airports, hotels and hospitals where both fire protection and a bright, open environment are needed.

A fire curtain is a flexible fire protection solution consisting of a specially treated textile that rolls down automatically in case of fire. Fire curtains are used to prevent the spread of fire and smoke between fire compartments where traditional fire doors or gates are not possible or desired.

Fire curtains are installed at strategic locations in the building and automatically roll down in case of fire to stop the fire and improve escape conditions for people.

Fire curtains require minimal space and integrate seamlessly with architecture. They are available in all fire classes and are ideal for places where high fire safety is required and space is a challenge. 

Fire curtains are available in several fire classes, including:

• EI: European classification.
  E / stands for integrity (fire tightness - prevents flames and smoke from penetrating the curtain).
  
  I / stands for insulation (temperature rise on the non-fire-affected side). The number indicates minutes (e.g. EI60 = 60 minutes). This affects how close you can pass through the curtain when there is a fire on the other side.
  
  
• EW: European classification.
  E / stands for integrity (fire tightness - prevents flames and smoke from penetrating the curtain).
  
  W / stands for radiant heat and indicates that the heat radiation measured one meter from the fire curtain on the non-fire side is limited.
  
  
• E: European classification.
  E / stands for integrity (fire tightness - prevents flames and smoke from penetrating the curtain).
  
  Here there is no heat reduction or reduced radiant heat on the opposite side of the curtain and these solutions should not be used where there are people.

Fire curtains are often used in buildings where open and flexible solutions are needed, such as shopping malls, airports, office buildings, hotels, parking garages, industrial buildings and public institutions. They are ideal for large openings, atriums or places where traditional fire doors cannot be installed.

Fire curtains are connected to the building's fire alarm system (ABA/ABDL) and are automatically activated in the event of a fire alarm. They can also be equipped with an emergency power supply to operate in the event of a power failure.

Yes, fire curtains must be tested and certified according to applicable European standards, typically EN 16034 and EN 1634-1 for fire resistance, and EN 12101-1 for smoke control. The certification documents that the product meets the requirements for fire resistance and safety.

• Takes up minimal space and can be integrated almost invisibly into the architecture

• Available in extremely large sizes

• Provides greater architectural freedom and flexibility

• Can be combined with smoke control and automatic fire alarm systems

• Often requires less installation space than traditional solutions

Yes, fire curtains can be produced in custom sizes and adapted to the needs of the building. They can also be supplied with different finishes and colors of cassette and guide rails to integrate discreetly into the building.

Fire curtains should be inspected and tested at least once a year by a professional. It is important to ensure that the curtain can roll down freely and that there are no obstructions in the opening. Regular servicing ensures that the system works properly in the event of a fire.