- Online only
Reference: 10.DR.33G-AR
Brand: Dierre
Internal handle for armored doors ATRA-DIERRE 33G
0 Review(s)
Internal handle for armored doors ATRA-DIERRE 33G
€12.10
- There are no more items in your cart
- Shipping
- Total €0.00
-
- Anti-panic closures
- Safety locks
- DIERRE - serrature e ricambi
- MOTTURA - security locks, cylinders and spare parts
- Europrofile cylinders CHAMPIONS®
- Apply security locks Mottura series 20
- Locks C10 / C28+ Mottura 30 Series
- Serrature per cilindro ad applicare Mottura Serie 38
- Serrature per ante e persiane
- Rim lock with electric striker
- Lock for overhead door
- Ricambi per serrature
- Rim locks for armored doors
- Latches
- Bocchette e mostrine
- Serrature da infilare
- XNOVA-XMODE Components
- MOTTURA 3DKEY security locks
- DEFENDER® cylinder protectors
- Motorized knob B-MOTO
- Lock accessories
- CISA - security locks
- POTENT - Serrature di sicurezza
- ANTONIOLI - serrature e ricambi
- CERUTTI - Security Lock
- AUNO - serrature e ricambi
- DOM CR - Serrature di sicurezza
- DISEC - Protezione cilindri
- MOIA - Serrature di sicurezza
- KASSEL - Security locks
- TESIO
- Door closer
-
- Insecticides
DISEC Monolito Kripton BD321N-25D1 – Euro Cylinder Protector for ATRA/DIERRE, 31 mm Fixing Centres
DISEC Monolito Kripton BD321N-25D1 mechanical protector for Euro cylinder locks with compatible ATRA/DIERRE mounting arrangements. Hemispherical body with Widia carbide anti-drilling inserts, integrated 88 × 68 mm escutcheon, Ø50 mm protector diameter and 31 mm fixing centres. Nominal size 25 mm, anti-skating system and reinforced Flex System mounting. Offered in bronze and polished brass.
TRUSTED EXPERIENCE SINCE 1913Over 100 years of experience in hardware, tools and technical products.
PHYSICAL STORE & CUSTOMER SUPPORTWe also have a physical store in La Loggia (Turin): real people ready to help before and after your
ORDERS PREPARED WITH CAREWe prepare every order with care
Description
DISEC Monolito Kripton BD321N-25D1 – Euro Cylinder Protector for ATRA/DIERRE Locks
The DISEC Monolito Kripton BD321N-25D1 is a mechanical security protector for Euro profile cylinder locks with compatible ATRA/DIERRE mounting arrangements and 31 mm fixing centres. It features an integrated external escutcheon and a hemispherical Sferik profile, reinforced with Widia carbide anti-drilling inserts.
Monolito Kripton construction and protection systems
The Monolito construction combines the cylinder protector and external escutcheon in a single assembly. Its hemispherical profile reduces accessible gripping surfaces, while the Widia carbide inserts enhance resistance to drilling and cutting attacks.
The device incorporates an anti-skating system designed to resist attacks on the rotor, together with reinforced Flex System mounting. The Kripton configuration provides additional protection against cylinder breaking, pulling and drilling attempts.
Dimensions and technical specifications
| Type | Mechanical cylinder protector with integrated escutcheon |
|---|---|
| Application | Euro cylinder – compatible ATRA/DIERRE locks |
| Protector diameter | Ø50 mm |
| Monolito escutcheon dimensions | 88 × 68 mm |
| Nominal size | 25 mm |
| Fixing centres | 31 mm |
| Fixing thread | M6 |
| Anti-drilling inserts | Widia carbide |
| Mounting system | Flex System |
| Rotor protection | Anti-skating system |
| Orderable finishes | Bronze, polished brass |
Compatibility and installation
The BD321N-25D1 is intended for compatible ATRA/DIERRE Euro cylinder locks with 31 mm fixing centres. It is not directly interchangeable with versions designed for 38 mm mounting centres.
Before replacement, check the cylinder position relative to the external door panel, fixing-hole alignment and clearance required for the escutcheon. Cylinder depth must also be checked to ensure correct key insertion and operation.
A DISEC cylinder protector spacer is listed separately in the Matteoda catalogue and can be ordered where appropriate. Its suitability depends on the dimensions and the existing door configuration.
Before ordering: check the ATRA/DIERRE mounting arrangement, 31 mm fixing centres and protector clearance. Contact Matteoda customer service for technical assistance and estimated delivery times.
Product Details
708.0843048
Specific References
- ean13
- 8029470082714
Customers who bought this product also bought:
Reference: 10.DR.63UAR
Brand: Dierre
ATRA-DIERRE 63UAR silver internal cylinder plate escutcheon
0 Review(s)
ATRA-DIERRE 63UAR silver internal cylinder plate escutcheon
€12.40
Reference: 10.DRSERNE427D
Brand: Dierre
Armored door lock Atra NE42.7 Euro profile with gears
0 Review(s)
Armored door lock Atra NE42.7 Euro profile with gears
€69.75
Reference: 10.DR.AG9-AR
Brand: Dierre
Shank / knob cylinder escutcheon for armored doors ATRA-DIERRE AG9
0 Review(s)
Shank / knob cylinder escutcheon for armored doors ATRA-DIERRE AG9
€10.50
Reference: 10.DR.63X-AR
Brand: Dierre
Knob and escutcheon for ATRA-DIERRE 63X opening limiter
0 Review(s)
Knob and escutcheon for ATRA-DIERRE 63X opening limiter
€17.80
Reference: 10.DRACCNE42P
Brand: Dierre
Dierre NE 42P standard cylinder fixing kit
0 Review(s)
Dierre NE 42P standard cylinder fixing kit
€16.50
Reference: 10.DR.331R-R
Brand: Dierre
Knob for armored doors ATRA-DIERRE 331R
0 Review(s)
Knob for armored doors ATRA-DIERRE 331R
€20.20
Reference: 103.C39D
Brand: Mottura
Mottura Champions C39 key / key security cylinder
0 Review(s)
Mottura Champions C39 key / key safety cylinder
€83.33
8 other products in the same category:
Reference: 708.0843360
Brand: DiSec
DISEC DF03 / DF07 – Drilling Guide Kit for Cylinder Protectors, 38 or 31 mm Fixing Centres
0 Review(s)
DISEC drilling guide kit for accurately centring the mounting hole of cylinder security protectors on reinforced door panels. Includes a dummy guide cylinder and a shaft with Ø6.3 mm connection, designed to replace the hole saw's standard pilot drill. Two selectable versions: DF03 for 38 mm standard fixing centres and DF07 for 31 mm ATRA fixing centres....
€87.30
Reference: 708.0843130
Brand: DiSec
DISEC MG4104WDM – Magnetic Protection for Double-Bit Locks
0 Review(s)
DISEC MG4104WDM sliding magnetic lock protector for double-bit key locks. Restricts access to the keyhole to help prevent tampering and vandalism. Operated by a dedicated magnetic key, with 2 magnetic keys included. Offered in polished brass finish. Lock compatibility and installation requirements must be checked before ordering.
€199.20
Reference: 708.0843372
Brand: DiSec
DISEC KM0P85 – Protected Magnetic Key Duplicate for 4W System
0 Review(s)
DISEC KM0P85 duplicate magnetic key for devices compatible with the 4W system. Each replacement is produced to match the magnetic coding of the original key. Restricted duplication requires the DISEC ownership card. Contact Matteoda customer service before ordering to verify the key profile and duplication procedure. Price refers to one duplicate magnetic...
€45.80
Reference: 708.0843012
Brand: DiSec
DISEC Rok Sferik BDS16D1P – Grade 4 Euro Cylinder Protector, 38 mm Fixing Centres
0 Review(s)
DISEC Rok Sferik BDS16D1P mechanical Euro cylinder protector made of carbonitrided steel, with grade 4 burglary resistance. Hemispherical Ø50 mm body, 85 × 65 mm oval escutcheon and 38 mm M6 fixing centres with Flex System. Recommended panel opening Ø51 mm. Offered in bronze, satin chrome and polished brass, with selectable size.
€24.10
Reference: 708.0843148
Brand: DiSec
DISEC MAG 3G 3G3FM-25D1 – Magnetic Euro Cylinder Protector for ATRA/DIERRE, 31 mm Fixing Centres
0 Review(s)
DISEC MAG 3G 3G3FM-25D1 magnetic protector for Euro cylinder locks with compatible ATRA/DIERRE mounting arrangements. Rotating magnetic cover, Monolito construction with 88 × 68 mm escutcheon, nominal size 25 mm and 31 mm M6 fixing centres. Coded magnetic key operation, with 2 magnetic keys listed as supplied. Offered in bronze and polished brass.
€166.35
Reference: 708.0843045
Brand: DiSec
DISEC Monolito Rok Sferik BD201-25D1 – Grade 4 Euro Cylinder Protector, 38 mm Fixing Centres
0 Review(s)
DISEC Monolito Rok Sferik BD201-25D1 mechanical Euro cylinder protector with one-piece body and integrated escutcheon, hemispherical profile and HSS high-speed steel anti-drilling inserts. Overall dimensions 88 × 68 mm, nominal size 25 mm, 38 mm M6 fixing centres with Flex System and grub-screw adjustment. Grade 4 burglary resistance. Offered in bronze...
€51.90
Reference: 708.0843022
Brand: DiSec
DISEC Rok Sferik RWS16-25D1P – Tungsten Carbide Reinforced Euro Cylinder Protector, 38 mm Fixing Centres
0 Review(s)
DISEC Rok Sferik RWS16-25D1P mechanical Euro cylinder protector featuring a hemispherical profile and tungsten carbide anti-drilling inserts. Ø50 mm body, 85 × 65 mm oval escutcheon and 38 mm M6 fixing centres with Flex System. Anti-skating protection and grade 4 burglary resistance declared by DISEC. Offered in bronze and polished brass.
€41.50
Reference: 708.0843163
Brand: DiSec
DISEC MR500F-25D1 – Keyed Alike Pair of Magnetic Euro Cylinder Protectors, 6 Matching Keys
0 Review(s)
Keyed Alike (KA) pair comprising 2 DISEC MR500F-25D1 magnetic Euro cylinder protectors with identical magnetic coding and 6 matching magnetic keys operating both devices. Rotating magnetic keyhole covers, self-adjusting spring-loaded anti-pull plates, nominal height 25 mm and 38 mm M6 fixing centres. Ideal for protecting two entrances with a shared set of...
€282.80
Reviews
No customer reviews for the moment.
DISEC Monolito Kripton BD321N-25D1 mechanical protector for Euro cylinder locks with compatible ATRA/DIERRE mounting arrangements. Hemispherical body with Widia carbide anti-drilling inserts, integrated 88 × 68 mm escutcheon, Ø50 mm protector diameter and 31 mm fixing centres. Nominal size 25 mm, anti-skating system and reinforced Flex System mounting. Offered in bronze and polished brass.