fire door mortise lock manufacturer

COMMON CHALLENGES OF FIRE DOOR LOCK

In public buildings, safety is paramount. EU Regulation 305/2011 (CPR) mandates CE certification and DoP declarations for fire door locks to ensure mechanical safety and fire integrity. Yet some pain points persist:
compliance risks

Compliance Risks

Using door locks without complete CE certification or missing DoP declarations may lead to project acceptance disputes and market access barriers.
Fire Resistance Deficiencies

Fire Resistance Deficiencies

Some locks on fire doors do not match their claimed fire resistance duration, affecting the integrity of the fire barrier.
Functional Challenges

Functional Challenges

Corrosion wear or insufficient durability in high-traffic areas (e.g., hospitals/airports) affect usage and increase maintenance costs.
Compatibility Issues

Compatibility Issues

Failure in the coordination between fire rated door locks and other door hardware or access control systems can impact the response effectiveness during daily operations or emergencies.

DIROCK PRECISION-ENGINEERED FIRE RATED DOOR LOCKS

As an experienced fire safety door locks manufacturer & supplier, DIROCK is committed to providing compliant solutions to ensure smooth implementation and long-term stability of your projects. Our locks, suitable for fire doors in public buildings, comply with European standard EN12209. CE certified (Intertek & Warrington). Grade 304 stainless steel material for mechanical excellence, precisely manufactured according to DIN 18251 to match with other fire door hardware products.

Explore DIROCK 72/92/85 series of fire door mortise locks → Multiple backset options, customizable support.

72mm Fire Door Mortise Locks

Fire Door Mortise Locks (72mm)

• 72mm c/c
• 304 stainless steel

• CE (Intertek): 3 X 9 1 0 G 3 B C 2 0

• CE (Warrington): 3 X 8 1 0 G 3 H C 2 0

• Fire test:
Steel fire door: 240mins; Timber fire door: 90mins (Intertek)
Steel fire door: 240mins; Timber fire door: 30/60/90/120mins (Warrington)
92mm Mortise Frame Locks

Mortise Frame Locks (92mm)

• 92mm c/c
• 30/35mm backset
• Zamak 5 for latchbolt and deadbolt
85mm Fire Door Mortise Locks

Fire Door Mortise Locks (85mm)

• 85mm c/c
• 304 stainless steel

• CE (Intertek): 3 X 9 1 0 G 3 B C 2 0

• Fire test: Steel fire door: 240mins; Timber fire door: 90mins (Intertek)

WHY CHOOSE DIROCK FIRE DOOR LOCKS?

11

Compliance Assurance

1. CE Certification (Intertek & Warrington) according to EN 12209.

2. EN 1634-1 fire certification for timber/steel doors across various fire ratings.

3. Declaration of performance (DoP) available.

12

Reliable Mechanical Performance

1. Crafted from quality 304 stainless steel.

2. 200,000-cycle endurance testing(Grade X) | 240h salt spray resistance(Grade G), ensuring high durability in high-frequency and harsh environments, reducing maintenance costs and extending service life.

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Precision

Engineering

1. Strict DIN 18251 dimensional compliance.

2. Full compatibility with other Euro standard door hardware.

3. Comprehensive functionality, including sash/ panic/mute/bathroom locks, and more, to meet a variety of scenario needs.

1

Manufacturing Guarantee

1. ISO 9001:2015 (UKAS) certified production.

2. Monthly capacity of 200,000 mortise lock, supporting customized bulk delivery.

APPLICATION

Our fire compliant door locks are widely used in hotels, medical facilities, airports, subways, schools, shopping malls, and other large public buildings.

  • fire door mortise lock for subway
  • fire door mortise lock for airport
  • fire door mortise lock for hospital
  • fire door mortise lock for hotel
  • fire door mortise lock for office building
  • fire door mortise lock for school

WHY PARTNER WITH US?

In the fire door hardware supply chain, partner selection directly impacts project compliance and safety. DIROCK is always committed to delivering certified fire resistance door hardware solutions for global building safety. Every commitment we make is backed by three pillars: manufacturing capabilities,quality management systems, engineering-grade delivery assurance.
door hardware certification

Standards & Certifications

Products: Obtain CE certification (Intertek & Warrington)

Factory: Three system certifications ISO 9001 (Quality)| ISO 14001 (Environment)| ISO 45001 (Safety)

Manufacturing Capabilities

Self-owned factory,stable funding with advanced automated production lines

Stable capacity, average monthly production capacity of 200,000 locks, 100,000 handles, supporting OEM customized services.

door hardware manufacturing capabilities
door hardware quality assurance

Quality Assurance

Relying on ISO 9001 to establish production control system (FPC), strictly controlling every link from raw material procurement to product delivery, ensuring quality consistency and full traceability.

In-house laboratory equipped with testing facilities for precise inspection.

Choosing DIROCK means more than hardware – it’s a commitment to Internationally certified quality, life & property safety assurance, trusted long-term partnership.

ISO CERTIFICATION

ISO9001 certification
ISO14001 certification
ISO45001 certification

PRODUCT CERTIFICATION

CE EN12209
CE EN179
EN1906 lever handle
EN1303 profile cylinder
CE warrington (in progress)

AUTOMATED PRODUCTION EQUIPMENTS

laser cutting

Laser cutting

lock assembly

Lock assembly

brushing

Brushing

lock assembly

Lock assembly

brushing

Brushing

tapping

Tapping

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We're Here to Support Your Projects.

Contact our experts to discuss your project's needs and let us help you ensure the compliance and safety of your building.

FAQs

1. Do fire doors need special locks?

Yes. Fire doors require certified fire-rated locks meeting standards like EN 1634-1 (EU) or UL (US). These locks, along with other fire door hardware, are essential for keeping people safe during a fire emergency. Generic locks may fail under high heat, potentially compromising the fire compartmental integrity.

2. What is a fire-rated door lock?

A fire door lock is a type of lock specifically designed for fire doors, which maintains its integrity during a fire to prevent the spread of flames and smoke through the door.

3. What are fire door locks regulations?

Fire door locks regulations and standards differ across countries and regions. For instance, the EN1634-1 and EN1209 standards of the European Union, and the UL, NFPA 80 standards of the United States, etc.

4. How do fire door locks work?

A fire door lock is designed to keep the door closed during a fire to prevent the spread of flames and smoke, while also allowing for quick and easy evacuation in emergencies. Take the mortise fire door lock as an example, the mechanism of lock and latch must maintain their functionality under high temperatures and pressure to ensure the door remains tightly closed. Additionally, fire door locks often come with heat-expanding seals that block gaps around the door to further prevent smoke and fire ingress. Made from high-melting-point materials like stainless steel, the lock's mechanical structure stays intact at high temperatures, ensuring the door can be quickly opened when needed for safe and rapid evacuation.

5. Fire door lock installation & maintenance

Select the right lock, ensuring it meets the fire door's grade requirements and has relevant certifications. Install it correctly according to the manufacturer's instructions to ensure the door closes properly. For maintenance, regularly check the lock's appearance and test its functions to ensure the latch and deadbolt operate smoothly and the door closes tightly. Clean the lock regularly and lubricate it moderately if necessary. Replace any damaged parts immediately to ensure the lock works properly.

6. Types of fire door locks

There are many types of door locks for fire door. Mortise fire door lock, panic exit device, electric fire door lock and electromagnetic fire door lock.

RELATED BLOGS

  • Maintenance Guide for Fire Rated Mortise Locks
    Fire-rated mortise locks are a type of fire safety lock and are critical components of a building's passive fire protection system. Their core function is to ensure proper door closure and maintain fire integrity during a fire, providing crucial time for occupant evacuation. Regular and proper maint
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  • Fire Door Hardware - Understanding the Essentials for Safety, Compliance and Exploring Best Solutions.
    Fire doors are a critical component of building fire safety, and their hardware is essential for the door's proper function. Fire doors play a vital role in protecting lives and reducing property loss. Their primary functions include effectively preventing the spread of flames and smoke to form a re
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  • Different Types of Mortise Locks
    In diverse architectural and access control scenarios, selecting the appropriate mortise lock is critical to ensuring security and functional efficiency. Known for their mechanical strength, durability, and versatile configurations, mortise locks have become the preferred solution for applications r
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