RC3 High-Security Extruded Aluminium Roller Shutter

Advanced Protection and Architectural Integration

The SUNON Custodia Basic 6500 is a high-security roller shutter system developed to protect residential properties, commercial premises and access points requiring enhanced resistance against forced entry and vandalism, without compromising the architectural appearance of the building.

Manufactured from high-strength extruded aluminium profiles, the system combines reinforced construction, a specially engineered interlocking slat design and a range of guiding and locking solutions.

The Custodia Basic 6500 incorporates the BSS security system with RC3 resistance classification, as specified in the manufacturer’s technical documentation, providing a reliable security solution particularly suited to large windows and demanding residential projects.

RC3 Protection — Enhanced Resistance Against Forced Entry

The Custodia Basic 6500 features a BSS security system with RC3 resistance classification, designed to increase protection against attempted break-ins and forced entry.

The system’s resistance is achieved through a combination of structural and mechanical features:

• Extruded aluminium profiles with reinforced supporting sections.
• Specially designed slat geometry to increase structural rigidity.
• Reinforced interlocking hook system between profiles.
• Lateral guide rails adaptable to different opening dimensions and resistance requirements.
• Optional supplementary locking and security devices.

The configuration of the guide rails, retention systems and other protective components must be adapted to the specific conditions of each installation.

The RC3 classification applies to the system configurations covered by the relevant test documentation.

Structural Engineering — 6063 T5 Extruded Aluminium Profiles

One of the distinguishing features of the Custodia Basic 6500 is its construction using 6063 T5 aluminium alloy extrusions, combining mechanical strength, dimensional stability and efficient rolling operation.

The system incorporates semi-curved profiles measuring 39 × 14 × 1.30 mm, with reinforcement thicknesses of up to 1.55 mm in the supporting ribs.

The curved slat geometry and interlocking profile design help minimise deflection across wide openings.

The slats are connected through a reinforced interlocking system and secured with metal end caps, designed to improve mechanical reliability and reduce maintenance requirements.

This construction provides a robust roller shutter system while maintaining a compact rolling diameter relative to its structural characteristics.

Large Openings — Up to 6.4 Metres Wide

The Custodia Basic 6500 is particularly suitable for protecting large architectural openings.

According to the product’s technical documentation, the maximum manufacturing dimensions are:

• Maximum width: 6,400 mm.
• Maximum surface area: 18 m².
• Approximate weight: 14.5 kg/m².
• Profile dimensions: 39 × 14 × 1.30 mm.
• Material: 6063 T5 extruded aluminium.

These characteristics make it possible to develop solutions for large glazed openings without necessarily dividing them into multiple shutter systems.

The permissible dimensions for each installation must be verified according to the system configuration, expected loads and applicable security requirements.

Wind Resistance and Additional Performance Characteristics

The Custodia Basic 6500 is engineered to provide structural stability under wind loads and mechanical stresses.

The technical catalogue specifies a Class 2 wind resistance rating, with a stated reference wind speed of 100 km/h.

The documentation also includes additional performance characteristics:

• Acoustic insulation: SSK3 classification, with a stated value of 36 dB.
• Declared thermal transmittance: U = 5.30 W/m²K.
• Finishes: RAL powder-coated finishes, special finishes and anodised options.

Specific performance levels must be verified according to the system configuration, dimensions and installation conditions.

Motorisation, Automation and Control Systems

The Custodia Basic 6500 can be integrated with different motorisation and control systems, selected according to the shutter dimensions and the operational requirements of the building.

Available solutions described in the technical documentation include:

• Tubular motors with mechanical or electronic limit switches.
• Radio control systems with rolling-code technology.
• Bidirectional remote controls.
• Integration with building automation systems.
• Compatibility with bus-based control solutions, KNX or open protocols, depending on the selected equipment.
• Connection to presence detectors, alarm systems and perimeter security sensors.

Depending on the opening dimensions, installation location and operating conditions, additional safety devices, such as anti-fall mechanisms or photocells, may be required.

Residential and Commercial Applications

The Custodia Basic 6500 is particularly suitable for projects requiring a combination of enhanced security, mechanical strength and discreet architectural integration.

Typical applications include:

• Detached houses and private residences.
• Large windows and architectural openings.
• Retail premises and professional establishments.
• Residential buildings with enhanced security requirements.
• Access points and openings exposed to forced-entry attempts or vandalism.
• Architectural projects requiring large-format roller shutters.

Its profile geometry and range of available finishes allow the system to integrate into contemporary buildings while providing reinforced protection.

Custom Manufacturing and Architectural Finishes

At SUNON, we develop security shutter solutions tailored to the specific requirements of each project.

The Custodia Basic 6500 can be configured with different guide rail types, shafts, motorisation systems and finishes, depending on the opening dimensions, structural requirements and operating conditions.

The technical documentation includes RAL powder-coated finishes, special surface treatments and anodised options, allowing the system to complement the materials and architectural design of the façade.

The slat design combines high structural strength with a discreet, contemporary appearance.

SUNON — Engineering and Architectural Protection

With more than three decades of experience, SUNON develops technical roller shutter and security systems that combine engineering, functionality and architectural integration.

Our expertise in extruded aluminium profiles, guiding systems, automation and protective solutions enables us to collaborate with architects, engineering firms, installers and project managers from the earliest design stages.

CUSTODIA BASIC 6500: RC3 security, reinforced construction and architectural protection for large openings.

For technical documentation, project-specific configurations or a quotation, please contact our technical department.