Windows and doors · Thermal break
S77
Bi-folding door system.
The SYKON Superior S77 is a 77 mm aluminium bi-folding door system built for expansive openings. Multi-panel folding configurations link through a robust hinge mechanism while a bottom-supported rolling system carries the load smoothly across the full opening width.
77mm
System depth
3.5m
Panel height, maximum
120kg
Panel weight, maximum
54mm
Glazing
- 77 mm system depth
- Sykotherm 75 thermal break
- EPDM gasket and brush sealing
- Glazing up to 54 mm
01 · Overview
Product overview.
The system supports inward or outward opening, integrated traffic-door panels, structural glazing sashes, and 90 degree corner configurations. EPDM and brush sealing certified at PIV Velbert, Germany, with Roto Patio Fold hardware.
Residential
Villas, Indoor-Outdoor
Commercial
Showrooms, Retail
Hospitality
Restaurants, Resorts
Institutional
Façade Openings
02 · Specifications
Technical specifications.
Technical Specifications
- System Depth
- 77 mm
- Thermal Break
- Sykotherm 75
- Max Panel Height
- 3.5 m
- Max Panel Width
- 1.2 m
- Max Panel Weight
- 120 kg
- Glazing Range
- Up to 54 mm
- Hardware
- Roto Patio Fold
Certifications & Performance
- Air Permeability, EN 12207
- Class 3
- Water Tightness, EN 12208
- Class 6A
- Wind Resistance, EN 12210
- Class C3
- Vertical Load, EN 13115
- Class 4
- Max Test Pressure
- ±1200 Pa
- Thermal Performance
- Sykotherm 75
03 · Performance
Tested performance.
Test Parameters
| Item | Value |
|---|---|
| Laboratory | PIV Velbert, DE |
| Specimen Size | 2801 × 2500 mm |
| Configuration | 3-leaf, inward |
| Hardware | Roto Patio Fold |
Measured Performance
| Performance Item | Standard | Result | Status |
|---|---|---|---|
| Air Permeability | DIN EN 12207 | Class 3 | Pass |
| Water Tightness | DIN EN 12208 | Class 6A | Pass |
| Wind Resistance | DIN EN 12210 | Class C3 | Pass |
| Vertical Load (Sash Weight) | DIN EN 13115 | Class 4 | Pass |
Tested at PIV Velbert, Germany, on a three-leaf specimen, 2801 × 2500 mm.
04 · Configurations
Opening types.
- 3 + 0 Folding
- 4 + 0 Folding
- 5 + 0 Folding
- 6 + 0 Folding
- 2 + 1 Traffic Door
- 90° Corner Option
05 · Profiles
Profile range.
Codes, types and weights as listed in the 2026 catalogue.
Frame Profile Options
| Profile Code | Type | Weight |
|---|---|---|
| P 077 102 | Low bottom frame | 777 gr/m |
| C 077 100 | Frame | 1510 gr/m |
| C 077 101 | Frame with wing | 1777 gr/m |
| C 077 111 | Regulation frame | 1423 gr/m |
| C 077 110 | Corner profile | 3250 gr/m |
Sash Profile Options
| Profile Code | Type | Weight |
|---|---|---|
| C 077 200 | Glazing sash | 1817 gr/m |
| C 077 210 | Structural glazing sash | 1790 gr/m |
Transom & Additional Profiles
| Profile Code | Type | Weight |
|---|---|---|
| C 077 300 | Transom | 1396 gr/m |
| C 077 600 | Profile for striker | 1005 gr/m |
| P 077 601 | Gasket profile | 205 gr/m |
| P 077 602 | Additional wing | 281 gr/m |
| P 077 603 | Structural glazing bead | 405 gr/m |
| P 060 604 | Anodised glazing bead | 111 gr/m |
| P 077 604 | Brush profile | 144 gr/m |
06 · Details
Details and highlights.
Glazing Range
| Configuration | Status |
|---|---|
| Double Glazing | Supported |
| Tested Config | 30 mm (10+14+6) |
| Maximum Glazing | Up to 54 mm |
| Structural Glazing | Available |
System Limitations
| Limit | Value |
|---|---|
| Max Panel Height | 3.5 m |
| Max Panel Width | 1.2 m |
| Max Panel Weight | 120 kg |
Based on current Masters hardware. Hardware upgrade under review for 2026.
System Behaviour & Key Highlights
- Folding panels with hinge system
- Bottom-supported rolling mechanism
- Multi-panel opening configurations
- EPDM gasket + brush sealing
- Sykotherm 75 / 75 plus profile
- Inward or outward opening
- Structural glazing option
- Standard glazing sash option
- 90 degree corner profile option
- Integrated traffic door option
07 · Downloads
Specify S77.
Request the documents for this system. We send them by email, usually with a contact in our engineering team.
08 · Related systems
More in windows and doors.
09 · Quote
Request a quote for S77.
Send the project details and we reply with a proposal.