GLR-63 INSULATED BI-FOLD SYSTEM

  • Sound Performance
  • Water Isolation
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 ✓


The weight of the sash is carried by the bearing
connected to the upper frame

• 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.
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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.

Available options depend on profile and configuration selections. Please contact your Linea Rossa representative.