REYNAERS CS 77
Geometry system
- Depth: 77mm
- Visible height: 89mm
- Central node: 122,5mm
- Dim. Max. Sash: L1200mm / H2800mm
- Max weight sash: 170kg
Thermal performance
- UW ≥ 1.3 W/m²K
Maximum Glass Thickness
- 52 mm
Acoustic Performance
- 42 dB
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Reynaers Aluminium
Reynaers Aluminium is a leading European provider of innovative and sustainable aluminium solutions for windows, doors, and facades. Known for its cutting-edge technology and design, Reynaers offers high-quality systems that ensure long-lasting performance and aesthetic appeal, catering to the needs of both residential and commercial projects.
Description
Reynaers CS 77 is a system for the manufacture of windows and doors with improved thermal characteristics, which offers an optimal combination of comfort and security. Optimal value for money, design options for contemporary architecture and complete versatility put this system in the top of Reynaers customer preferences
- 3 levels of thermal insulation: Standard, Hi, Hi +
- Configuration possibilities: Functional, Renaissance, Hidden Sash, Softline, Fireproof
REYNAERS CS 77 - Cross Section
Advanced Security with Sleek Architectural Design
Concept System 77 - Bullet Proof
The Reynaers Concept System 77 (CS 77) Bullet Proof is a high-performance solution designed to provide exceptional security while maintaining sleek architectural aesthetics. It offers bullet resistance that meets the strictest European standards, ensuring safety without compromising on design. This system is ideal for environments requiring advanced security, such as banks, embassies, and governmental buildings. Additionally, CS 77 Bullet Proof integrates seamlessly with other Reynaers systems, providing flexibility and customization options for various project requirements.
Technical Information for CS 77 Bullet Proof
Energy
- Thermal Insulation – Uf: 2.4 W/m²K
- Thermal Insulation – Uw: 1.6 W/m²K
- Uw Dependencies:
- Frame-vent: Ug 1.0 W/m²K
- Psi: 0.032 W/mK
- Dimensions: 1.23m x 1.48m (128mm sight line)
- Glass thickness: 25mm
Safety
- Bullet Resistance:
- FB4
- FSG
- Kalashnikov
- Operating Forces Class: Class 1
PERFORMANCE:
Air Resistance:
- Class 4 (600Pa)
Water Resistance:
- Class E900 (900Pa)
Wind Resistance:
- Class C5 (2000Pa)
CHARACTERISTICS:
Burglar resistance:
- RC2 – RC3 – PAS 24
Fire Resistance:
- El130 – El230 – EL260 – EW30
Bullet resistance:
- FB4 – FSG Kalashnikov
Opening & Closing resistance:
- Class 3
PROPERTIES
Max. dimensions & weight:
- Min. height of vent 600 mm
- Max. height of vent 2800 mm
- Min. width of vent 450 mm
- Max. width of vent 1200 mm
- Max. weight of vent 170 kg
Sightlines:
- Min. frame width (inward opening) 51 mm
- Min. vent width (inward opening) 33 mm
- Min. frame-vent width (inward opening) 89 mm
- Min. frame width (outward opening) 17.5 mm
- Min. vent width (outward opening) 76 mm
- Min. frame-vent width (outward opening) 93.5 mm
- Min. width T-profile 76 mm
- Depth frame 68 mm
- Depth Vent 77 mm
- Depth frame-vent 77 mm
Glazing:
- Rebate height 25 mm
- Glazing method: Dry glazing, Siliconized glazing, Internal glazing, External glazing, Glazing bead.
- Max. glass thickness - frame/element 52 mm
- Min. glass thickness - vent 4 mm
- Max. glass thickness - vent 63 mm
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Ready to bring your vision to life?
Contact our team to get a personalised quote for your windows and doors project.
To book a visit to our office in Hemel Hempstead and explore our full range of products, please schedule an appointment with one of our agents, using below contact details.
Visits are available strictly by appointment only.
- Landline: 03334559016
- WhatsApp: 07936565921
- Email: office@sbwgroup.co.uk
- Showroom: Enterprise House, Maxted Road, Hemel Hempstead, HP2 7BT.
What customers say about us?
Sbw Group LTD
4.4
10 Reviews

We have used SBW on several occasions…
We have used SBW on several occasions over the years and always found their services very good, hence I’m a repeat customer. I’ve had bifold and sliding patio doors, front door, other exterior doors and replacement double glazing windows. Quality products, great customer service and aftercare.
Was very impressed both by the service…
Was very impressed both by the service and the product. After a bad experience with a previous window company, which you could feel the draft coming through after one month of instalation, I was skeptical to try different company. I am thrilled I found SBW GROUP. I had my windows done in April 2024 and the quality is above my expectations. The installation team was very organised, professional and considerate and we are very pleased with the results. Highly recommend them.
I recommend this with trust and was…
I recommend this with trust and was very happy with the doors I purchased from this brand
Sbw Group LTD
4.4
10 Reviews

We have used SBW on several occasions…
We have used SBW on several occasions over the years and always found their services very good, hence I’m a repeat customer. I’ve had bifold and sliding patio doors, front door, other exterior doors and replacement double glazing windows. Quality products, great customer service and aftercare.
Was very impressed both by the service…
Was very impressed both by the service and the product. After a bad experience with a previous window company, which you could feel the draft coming through after one month of instalation, I was skeptical to try different company. I am thrilled I found SBW GROUP. I had my windows done in April 2024 and the quality is above my expectations. The installation team was very organised, professional and considerate and we are very pleased with the results. Highly recommend them.
I recommend this with trust and was…
I recommend this with trust and was very happy with the doors I purchased from this brand








