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Ultimate Security Meets Contemporary Design

The S6es aluminium door system combines flush-fitted elegance with certified protection up to RC4 and FB4. Enjoy seamless architectural lines and peace of mind, all in one system.

Aluminium Security Doors – Series S6es

Combining minimalist aesthetics with advanced security, the S6es aluminium door system offers tested protection against forced entry, ballistic attack, and blast impact — all in a sleek, flush-mounted design. Perfect for projects where safety cannot compromise style.

Certified forced entry resistance up to RC4 (DIN EN 1627-1630)

Bullet resistance up to FB4-NS (DIN EN 1522-1523)

Blast resistance tested up to EXR2 and 500 kg explosive charges

Glazing thickness up to 80 mm, compatible with BR4-NS glass

Flush-fitted profiles and narrow face widths for modern design

Compatible with all SYSTEM SÄLZER® components

Available with anodised, powder-coated or cladded surface finishes

Tested with mechanical, electro-mechanical, and motorised locking systems

Performance-tested for wind, water, air permeability, and thermal insulation

About the S6es Aluminium Door Series

Tailored security solutions with design freedom

The S6es series by SYSTEM SÄLZER® offers premium aluminium doors that balance visual elegance with uncompromising security. Designed for high-risk applications, these doors are flush-mounted, structurally reinforced, and visually seamless with surrounding façade systems.

Each door is tested and certified for resistance to forced entry (RC4), bullet attack (FB4-NS), and explosions (EXR2), while maintaining performance in wind load, water tightness, and thermal insulation. Customisable options allow the doors to integrate effortlessly into both residential and commercial environments.

Available as single or double-leaf doors, inward or outward opening, the S6es system accommodates diverse architectural needs and usage types. With compatibility across all SÄLZER® components, it’s the ideal choice for projects requiring unified aesthetics and robust protection.

Technical Specifications

Certified security and high-performance features across all dimensions

Forced Entry Resistance

Tested according to DIN EN 1627–1630, the S6es series achieves resistance class RC4. Glazing meets DIN EN 356 up to P8B, ensuring robust protection against break-ins and tool-based attacks.

Bullet Resistance

Certified to DIN EN 1522–1523 up to FB4-NS, with glazing conforming to BR4-NS (DIN EN 1063). Designed to withstand ballistic threats while maintaining sleek aesthetics.

Blast Resistance

Rated up to EXR2 per DIN EN 13123-2 and DIN EN 13124-2, with real-world testing using up to 500 kg of explosives at 28 m. Meets GSA 2 (Very High) and ISO B (No Hazard) classifications.

Thermal & Acoustic Performance

Thermal insulation values range from UD = 1.7–1.9 W/m²K (double glazing) to 1.4–1.8 W/m²K (triple glazing). Acoustic insulation up to RW 47 dB ensures comfort alongside security.

Weather Resistance

Compliant with DIN EN 14351-1: wind load resistance up to C5 (2,000 Pa), water tightness up to E 750, and air permeability up to class 4 (600 Pa).

Durability & Life Cycle

Tested to Level 6 (200,000 cycles with 400 kg) and Level 7 (500,000 cycles with 350 kg), the S6es doors are ideal for high-traffic, frequently used entrances.

Locking & Access Control

Supports mechanical, electro-mechanical and motorised locks. Fully compatible with access control systems including card readers and biometric devices. Emergency exit configurations (DIN 179, DIN 1125) available up to RC4.

Surface & Finish Options

Profile depth of 115 mm, suitable for glass up to 80 mm thick. Surfaces available in powder-coated, anodised, or cladded finishes such as timber, stone, stainless steel and bronze.

Looking for maximum protection without compromising design?

Enquire About the S6es Aluminium Security Doors

Get in touch with our expert team to configure a security door system tailored to your building’s needs. From bespoke sizing to blast protection, we’re here to help you specify with confidence.

What Our Customers Say

We take pride in delivering exceptional glazing solutions and outstanding customer service. Here’s what some of our happy clients have to say about working with Minimal Frame Projects.

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Alison Burton profile picture
Alison Burton
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Absolutely delighted with our recent purchase of sliding doors for our new orangery, part of a major renovation of our home. The quality is top-notch, and the sleek design will perfectly complement or modern kitchen and frame the amazing views we have. The door’s sturdy construction and beautiful minimalist finish add a touch of elegance to the space. Highly recommend this product to anyone looking to enhance their home with stylish and functional sliding doors.
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James Trinder profile picture
James Trinder
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Minimal Frames have been outstanding throughout the process, from planning to install and aftercare. At all times their communication has been top-notch; fast and effective. Quality of the glazing itself is excellent, the installation process was pain free and the windows and pivot door look incredible. They’ve been really strong on aftercare too, checking in that all works well and correcting a very minor issue quickly. I really cannot fault any part of our experience and wouldn’t hesitate to use them again and recommend to others.
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Narmina Hasanova profile picture
Narmina Hasanova
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Bob and his team have taken on our tricky glass extension installation, embraced its complexity and delivered it to perfection. It truly is a stunning addition to the house. The team that worked on site was extremely pleasant; always on time, quiet and polite. The project turned out to be long for its complexity, but the final result was worth the wait. We are very pleased with the outcome and hope it will keep us cool even in the heat of summer. Thank you MFP team! With kind regards, Emil and Narmina
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Elliott Raggio profile picture
Elliott Raggio
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I am pleased to say that overall, I am delighted with the honorable customer service from Robert the company director at Minimal Frame Projects. Thank you to the surveyor and installation team who executed a challenging install for my bespoke Glass Pivot exterior door. Credit does go to Robert for being understanding, a man of his word and overcoming obstacles to ensure complete customer satisfaction.
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Bruce Fraser profile picture
Bruce Fraser
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Ultimately an excellent result. Great product. Bob, Mollie and the team worked hard at solving problems and timing. We appreciated their effort and approach.
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G B profile picture
G B
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Bob and Minimal Frame have stepped in to help sort out problems with another glazing company. He has kept us well informed throughout and has worked tirelessly to deal with the manunufacturers to get the doors delivered and the install started. We were 90% done by Christmas which was a huge relief. I've found Bob to be straightforward, transparent and responsive and am very grateful for his help fixing our previous issues. Additionally, his install team have been highly professional and meticulous in getting the install right.

Visit Our Showroom in Surbiton

Visit Our Showroom & Explore Premium Glazing Solutions

Experience the quality of our slimline glass doors, windows, and structural glazing in person. Whether you're planning a project or need expert advice, our team is here to help.

Located in Surbiton, we welcome homeowners, architects, and developers to see our range up close.