LD 156 SERIES
High Thermal Insulation & Large-Size Sliding Door
LD 156 series is designed for large panoramic openings and ultra-large sash dimensions, delivering exceptional thermal performance, weather resistance, smooth operation, and modern aesthetics. It is ideal for balconies, patios, courtyards, and luxury residential applications.
LD 156 SERIES Features
Aluminum Profiles
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Original YKK AP aluminum profiles
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Wall thickness: 2.2 mm
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High-strength structural design for large-size applications
Thermal Break
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Original YKK AP PA66GF25 polyamide thermal break strips
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Glass-fiber reinforced nylon for superior thermal insulation and structural stability
Glass
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Xinyi Glass raw glass
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Processed by Dalian Huaying Glass
Sealing System
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Original YKK AP EPDM gaskets
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High-performance sponge foam seals
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Excellent airtightness, weather resistance, and long-term durability
Hardware
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Original YKK AP hardware system
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Heavy-duty rollers and locking components
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Smooth, quiet, and reliable operation
Performance Specifications
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Thermal Insulation: (Uw) ≤ 1.4 W/(m²·K)
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Air Tightness: Level 8
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Water Tightness: 500 Pa
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Wind Load Resistance: 3000–3500 Pa
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Sound Proof: 30–35 dB
Main Features
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Panoramic floor-to-ceiling design with expansive views and maximum daylight.
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Extra-large sash capability, suitable for modern architectural openings.
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Concealed drainage system integrated within the bottom frame.
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Widened track and enlarged water collection chamber effectively prevent water penetration during heavy rain.
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Smooth and quiet sliding operation with high-load-bearing rollers.
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Suitable for both balcony and courtyard applications.
Ideal Applications
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Luxury residences
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High-rise apartments
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Villas
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Courtyard houses
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Balcony enclosures
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Large terrace openings
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Energy-efficient and passive-house projects
Advantages
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Exceptional thermal insulation performance (Uw ≤ 1.4 W/m²·K)
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Superior weather resistance against wind and driving rain
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Large-format sliding panels for unobstructed views
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Quiet and effortless operation
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Premium YKK AP original components throughout the system
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Modern flush appearance with concealed drainage design
