Mottura 52.771 – Italian-made mortise lock with a latch and drive system for a multi-sided locking system.
The lock is suitable for installation in metal doors with a left and right opening direction.
The manufacturing company produces this lock with three or four bolts.
This model features the Easy Go system, which allows you to completely replace the valve mechanism quickly and without unnecessary hassle.
A special feature of this mechanism is that some of the levers do not have springs; they are set in the required position by turning the key with the release levers.
Combined with the false grooves on the keyway protrusions, this makes it significantly more difficult to pick the lock with pickaxes.
The lock has a system that prevents the bolts from being pressed into the device. The latch counter is reinforced with a pressed steel bearing in the design, which makes drilling the lock impossible.
It is also impossible to break the lock using the so-called coagulation method, because in such cases the latch structure is loosened.
Basic characteristics of the lock:
- Four bars
- The lock latch is pushed in with a key or handle
- Full closure – four turns
- Bar diameter – 18 mm
- Length of the bars – 40 mm
| Origin | |
| Country of origin | Italy |
| Description | |
| Meaning | Basic lock |
| Type | Mechanical |
| Series / profile | 52 |
| Riechel form | Round |
| Product weight | 2.67 |
| Fireproof | Class B – suitable for installation in fire doors |
| Certification | |
| Application class | Class 3 (out of 3) High intensity of use |
| Durability – number of test cycles | S. class |
| Test sash size | Class 5 up to 200kg 25N |
| Safety of use | N/A no requirements |
| Corrosion resistance | Class G – operating temperature -20°C – +80°C, 240 hour corrosion test |
| Hacking protection | Class 7 Protection against physical attacks and drilling |
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