Espagnolette lock, Heavylock, with cylinder removable core, backset 40 mm

  • Master key system organisation
  • Master key system organisation

    Locking maps are useful for organising comprehensive master key systems. They make organisation much easier. Generally, a distinction is made between two systems: Simple organisation with a master key (abbreviated to MK) and multi-level organisation with a general master key (abbreviated to GMK).

    Organisation with master key (MK locking systems)

    MK systems have several individual keys (IK) that are keyed to differ, i.e. they are not interchangeable.


    Then there is the master key (MK), which overrides all of the individual keys and therefore opens every lock in this system.


    MK locking systems are ideal for small offices with a boss and several employees.

    Organisation with general master key (GMK locking systems)

    GMK systems have both individual keys (IK) and group keys (GK) that are assigned to different IK's. Several GK's can be assigned to one master group key (MGK).


    The general master key (GMK) then overrides every key in the system.


    GMK locking systems are used for organisation in large office buildings with several departments and sub-departments.

    Closure direction and closure travel

    Closure travel for cam locks 90°

    Closure travel for cam locks 180°

    Closure direction left

    Closing direction right

    The closure travel is specified by numbers and the closure direction is specified by letters with cam locks. They refer to the installation situations shown in the tables. Locks with closure travel 180° can be altered to all closure travels. Factory set is closure travel 1.


    Locks with closure travel 90° are either left or right locking locks. The closure direction is here specified by letters. The first letter indicates the factory setting, the closure direction can be altered to the letters specified in brackets by re-positioning the locking cam (example: Closure direction A [D, F, G]).

  • Furniture locks with cylinder core – Häfele Heavylock
  • Häfele Heavylock

    The Heavylock espagnolette lock system is recommended for heavy-duty locks (projects, industry) and increased security requirements.

    A pin tumbler cylinder Ø 22 mm with 5 pairs of pin tumblers can be used as well as CES cylinders Ø 28 mm with increased drilling and pull protection. The security pass provided with the CES cylinders guarantees protection against unauthorized duplication of keys. All CES cylinders are available with additional security features against extra charge.

    Overview of the Heavylock espagnolette lock system

    Espagnolette lock

    ... with cylinder aperture Ø 22 mm + 28 mm

    and locking cylinder

    Ø 22 mm

    Rim lock

    ... with cylinder aperture Ø 22 mm + 28 mm

    and CES round cylinder

    Ø 28 mm

    and CES rotary handle

    Ø 28 mm

    Construction dimensions

    Please consider the following dimensions when designing the cabinet and when choosing the accessories for the espagnolette lock:

    Upper rod dimension = centre of lock case – 32.5 mm

    (A = D – 32.5 mm)

    Lower rod dimension = centre of lock case – 32.5 mm

    (B = D – 32.5 mm)


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    Espagnolette lock, Heavylock, with cylinder removable core, backset 40 mm

    Image may show a similar article, please check product details.

    Espagnolette lock, Heavylock, with cylinder removable core, backset 40 mm

    Ø 22 mm, mounting: Right hand

    Art. no. 225.78.025

    Espagnolette lock, Heavylock, with cylinder removable core, backset 40 mm

    Ø 28 mm, mounting: Right hand

    Art. no. 225.78.089
    Product details

    Area of application

    For divided profile rod Ø 8 mm, for accommodating locking cylinders Ø 22 mm or 28 mm


    Lock case: Steel
    cylinder insert: Zinc alloy


    Lock case: Ground and nickel plated
    cylinder insert: Bright

    Backset D

    40 mm


    With fixed rosette for Ø 24 mm or Ø 30 mm drill hole


    For screw fixing
    Show more information
    Product Features

    Supplied with

    1 Espagnolette lock

    2 Rod guides

    1 Angled striking plate

    1 Pair of catch hooks

    2 Locking bolts

    Complementary products and accessories
    Corporate Office: Häfele America Co., 3901 Cheyenne Drive, Archdale, N.C. 27263
    Phone: 800.423.3531, Fax: 800.325.6197, Local Phone: 336.434.2322, Email: