Nepal Windoor

SG4500

LS400

Heavy-Duty Performance for Large Openings
LS400 is a strong system aluminium sliding window door system designed for large openings and heavy glass applications. Made from high-quality 6063-T6 alloy, it can accommodate heavy sash weights (up to 400 kg) whilst allowing smooth and controlled sliding. The 25mm interlock with the multi-point locking makes it stronger and secure. LS400 suits 2 and 3 track solutions with glazing from 18-38 mm, ideal for aluminium windows and doors within residential and commercial applications. It is a performance sliding system in aluminium tested for air, water and wind resistance.

• Designed for extra-large and high-opening applications
• Sleek and slim central interlock design
• Concealed frame options for a clean minimal look
• Integrated gutter system for efficient water drainage
• Maximized glass area for panoramic outdoor views
• Smooth sliding performance with precision-engineered rollers
• Strong structural stability for tall shutters
• Premium minimalist aesthetics for modern architecture
• Ideal for luxury villas, facades, and high-rise projects
• Combines elegance, performance, and durability in one system

GLAZING
Minimum
18 mm
Maximum
38 mm
Possible Typology
2, 3, 4, 6 leaf
Frame Specifications
2 track 155 mm
3 track 235 mm
Frame depth
35 - 58 - 42 mm
SASH
55 mm
Profile thickness
1.5 to 5 mm
Maximum weight per leaf
400 Kg
Central interlocking
25 mm
Multi-locking system with key option
Yes
Permittable dimensions per leaf (W X H)
1800 X 4260