GLR-63 Insulated Bi-Fold System
GLR-63 INSULATED BI-FOLD SYSTEM
The weight of the sash is carried by the bearing
connected to the upper frame
TECHNICAL SPECIFICATIONS:
FRAME WIDTH
1 1/8″
FRAME LENGTH
2 3/8″
SASH WIDTH
2 7/8″
SASH LENGTH
2 3/8″
MAXIMUM SASH CARRYING
176 lbs
APPLICATION FEATURES:
UPPER CARRIER BEARINGS
✓
SLOTTED THRESHOLD ALTERNATIVE
✓
POSSIBILITY TO COLLECT THE SASH AT 45°
✓
POSSIBILITY TO COLLECT THE FRAME AT 90°
✓
HEAT AND SOUND INSULATION
✓
• Wide Sash Capability with Top-Mounted Bearings
The system allows for the use of wide sashes thanks to precision-engineered upper bearings that provide stable and smooth movement.
• Horizontal Guide Bearings Prevent Rotation
Special horizontal bearings are positioned to restrict unwanted rotation of the upper bearings, ensuring consistent alignment and safe operation during opening and closing.
• Sash Load Transferred to the Head Rail via Bearings
The full weight of the sash is transmitted to the top case and carried by high-capacity bearings, minimizing stress on the threshold and ensuring long-term durability.

Sound Performance

Water Isolation

Maximum Security

Flyscreen Option
Bi-Fold Door System combine contemporary architectural aesthetics with advanced opening functionality, creating flexible and spacious transitions between indoor and outdoor environments.
The system utilizes precision-engineered upper carrier bearings that support smooth, stable, and quiet sash movement while allowing the use of wider panel configurations with reliable long-term performance.
Optional slotted threshold solutions provide a cleaner and more minimalist floor transition, improving accessibility while preserving the refined architectural appearance of the system.







