DISEC Rok Sferik RWS68-25D1P – Euro Cylinder Protector for ATRA/DIERRE Locks
The DISEC Rok Sferik RWS68-25D1P is a mechanical security protector for Euro profile cylinder locks with compatible ATRA/DIERRE mounting arrangements and 31 mm fixing centres. Its hemispherical profile and tungsten carbide inserts help resist cylinder breaking, pulling and drilling attempts. The protector incorporates an anti-skating system and reinforced Flex System mounting. DISEC specifies grade 4 burglary resistance.
Tungsten carbide reinforcement and security features
The hemispherical profile reduces accessible gripping surfaces for tools used in forced-entry attempts. Tungsten carbide inserts improve resistance to drilling and cutting attacks, while the anti-skating system provides additional protection against specific methods of attacking the cylinder's front section.
The Flex System uses reinforced M6 fixing screws to improve mounting resistance. The front opening allows normal insertion and operation of the cylinder key.
Dimensions and technical specifications
| Type | Hemispherical mechanical cylinder protector |
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| Application | Euro cylinder – compatible ATRA/DIERRE locks |
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| Protector diameter | Ø50 mm |
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| Escutcheon dimensions | 85 × 65 mm |
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| Nominal size | 25 mm |
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| Fixing centres | 31 mm |
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| Fixing thread | M6 |
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| Reinforcing inserts | Tungsten carbide |
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| Fixing system | Flex System |
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| Additional protection | Anti-skating system |
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| Burglary resistance grade | 4 |
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| Orderable finishes | Bronze, polished brass |
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Compatibility and installation
The RWS68-25D1P is designed for compatible ATRA/DIERRE locks with 31 mm fixing centres. This mounting configuration differs from the RWS16, which uses 38 mm fixing centres.
Before installation, check the lock model, cylinder position relative to the external door panel, fixing-hole arrangement and clearance required for the oval escutcheon.
A DISEC cylinder protector spacer is listed separately in the Matteoda catalogue for mounting adjustments. Its compatibility must be checked for the specific lock and door configuration.
Before ordering: check the 31 mm M6 fixing centres, protector size and cylinder clearance. Contact Matteoda customer service for assistance with product selection and estimated delivery times.
