Exterior Door Mortise Lock DDML009 delivers a reliable locking solution for entrance doors where durability, fire resistance, and consistent performance are essential. Engineered for both commercial and residential applications, this lock integrates a solid stainless steel 304 internal structure with a galvanized steel case to maintain long-term mechanical stability under frequent operation. Certified to CE EN12209 and DIN 18251 Grade 3 standards, and tested for 200,000 cycles, it ensures dependable function across demanding environments. With a fire rating of up to 260 minutes under EN1634, it supports projects requiring strict safety compliance. Multiple backset options from 55 mm to 80 mm allow flexible installation across various door configurations, including wooden and metal doors. Cylinder operation can control both latchbolt and deadbolt depending on the selected configuration, offering adaptability for different security requirements.

1. 200,000-Cycle Performance

The DDML009 Exterior Door Mortise Lock is certified to CE EN 12209 and DIN 18251 Grade 3 and has completed 200,000 mechanical test cycles. Its latchbolt, deadbolt, follower, forend, and strike plate are made of solid 304 stainless steel, supporting frequent opening and closing in commercial entrances where consistent operation and extended service life are required.

2. 260-Minute Fire Rating

Tested for 260 minutes in accordance with EN 1634, this lock carries the CE classification 3X910G3BC20 and is suitable for projects with fire-rated door requirements. The galvanized steel case is combined with 304 stainless steel functional parts to retain accurate component engagement under demanding conditions in hotels, apartments, offices, and public buildings.

3. Multiple Backset Options

The Exterior Door Mortise Lock is available with 55mm, 60mm, 70mm, and 80mm backsets and features a 72mm center distance. These options accommodate different door constructions, lever positions, and regional hardware specifications. They also simplify lock selection across project schedules, reduce door preparation adjustments, and improve installation efficiency for volume orders.

4. Square or Radius Forend

Square and radius designs are available for both the forend and strike plate, supporting routed wooden doors and prepared metal door profiles. The latchbolt, deadbolt, follower, forend, and strike plate use 304 stainless steel, while the case is made from galvanized steel. This configuration supports new construction, replacement work, and standardized door schedules.

5. Seven Finish Choices

DDML009 is offered in satin stainless steel, polished stainless steel, polished brass, antique brass, antique copper, matt black, and Physical Vapor Deposition finishes. Buyers can coordinate the Exterior Door Mortise Lock with door colors, lever handles, and architectural styles, making it suitable for modern, traditional, or industrial interiors while maintaining a consistent hardware appearance.

1. Commercial Offices

The Exterior Door Mortise Lock is suited to office entrances, private rooms, and shared corridor doors. Its 200,000-cycle test performance supports frequent weekday operation, while the 55mm to 80mm backset range accommodates varied door specifications. The 72mm center distance also helps standardize lever and cylinder selection for procurement, installation, and replacement programs.

2. Hotels and Apartments

Hotel guestroom entrances, service areas, and apartment entry doors require verified fire performance, consistent operation, and coordinated finishes. DDML009 has completed a 260-minute test to EN 1634 and can be fitted to wooden, metal, and swing doors. Its metallic and matt black finishes support different interior schemes, centralized purchasing, and phased project delivery.

3. Residential Entrances

For villas, residential buildings, and townhouses, the lock can be specified with a 55mm, 60mm, 70mm, or 80mm backset. Square and radius forend options support different door preparation methods. Solid 304 stainless steel latchbolts and deadbolts handle frequent daily operation, while the Exterior Door Mortise Lock can be matched with selected levers, cylinders, and door materials.

4. Public Buildings

Schools, hospitals, community centers, and government facilities need clearly specified locks that support volume installation. DDML009 complies with CE EN 12209 and DIN 18251 Grade 3 and carries the CE classification 3X910G3BC20. It fits wooden doors, metal doors, interior doors, exterior doors, and swing doors, reducing procurement complexity across varied door schedules.