Protection for cylinder DISEC Sferik BD121-25D1 38mm (Cisa, Mottura,..)
    • Protection for cylinder DISEC Sferik BD121-25D1 38mm (Cisa, Mottura,..)

    DISEC STONE Rok Sferik BD131-25D1 – Anti-Pull Euro Cylinder Protector, 31 mm ATRA/DIERRE Fixing Centres

    708.0843021
    DiSec

    DISEC STONE Rok Sferik BD131-25D1 mechanical Euro cylinder protector for compatible ATRA/DIERRE locks with 31 mm fixing centres. Carbonitrided steel body with hemispherical profile and anti-pull edge, 85 × 68 mm escutcheon and M6 Flex System mounting. Grade 4 burglary resistance declared by DISEC. Offered in bronze and polished brass.

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    €29.00
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    DISEC STONE Rok Sferik BD131-25D1 – Anti-Pull Euro Cylinder Protector, 31 mm ATRA/DIERRE Fixing Centres

    DISEC STONE Rok Sferik BD131-25D1 – Anti-Pull Euro Cylinder Protector, 31 mm ATRA/DIERRE Fixing Centres

    DISEC STONE Rok Sferik BD131-25D1 mechanical Euro cylinder protector for compatible ATRA/DIERRE locks with 31 mm fixing centres. Carbonitrided steel body with hemispherical profile and anti-pull edge, 85 × 68 mm escutcheon and M6 Flex System mounting. Grade 4 burglary resistance declared by DISEC. Offered in bronze and polished brass.

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    Description

    DISEC STONE Rok Sferik BD131-25D1 – Anti-Pull Euro Cylinder Protector

    The DISEC STONE Rok Sferik BD131-25D1 is a mechanical security protector for Euro profile cylinder locks with compatible ATRA/DIERRE mounting arrangements. Manufactured from carbonitrided steel, it features a hemispherical profile and an anti-pull edge, designed to resist cylinder breaking, extraction and drilling attempts. DISEC specifies grade 4 burglary resistance.

    STONE protection and Flex System mounting

    The hemispherical profile reduces exposed gripping surfaces for tools used during forced-entry attempts. The anti-pull edge provides an additional structural feature to resist forces applied when attempting to remove the protector.

    The Flex System uses reinforced fixing screws to improve mounting resistance compared with conventional fasteners. The front key opening allows normal insertion and operation of the cylinder key.

    Dimensions and technical specifications

    TypeHemispherical anti-pull mechanical protector
    ApplicationEuro cylinder – ATRA/DIERRE mounting arrangement
    Protector materialCarbonitrided steel
    Dimensioned circular envelopeØ54 mm
    Escutcheon dimensions85 × 68 mm
    Overall projection27 mm
    Nominal size25 mm
    Fixing centres31 mm
    Fixing threadM6
    Mounting systemFlex System
    Additional protectionAnti-pull edge
    Burglary resistance grade4
    Orderable finishesBronze, polished brass

    Compatibility and installation

    The BD131-25D1 is intended for compatible ATRA/DIERRE locks with 31 mm fixing centres. It differs from the BD121 model, which uses standard 38 mm fixing centres.

    Before installation, check the cylinder position relative to the external door panel, the escutcheon clearance and the fixing-hole arrangement. Compatibility must be assessed according to the actual lock model.

    A DISEC cylinder protector spacer is also listed in the Matteoda catalogue and can be ordered separately. Its suitability must be confirmed for the specific installation.

    Before ordering: check the ATRA/DIERRE mounting arrangement, 31 mm M6 fixing centres and protector dimensions against the existing door. Contact Matteoda customer service for technical assistance and estimated delivery times.

    Product Details
    708.0843021

    Specific References

    ean13
    8029470063737
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