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COR4900 Sliding

The COR 4900 Sliding by Cortizo is a thermally broken aluminum sliding system engineered for large residential and commercial openings where clean sightlines, flexible configurations, and high environmental performance are required. With a minimalist 35 mm central mullion, sash depths of 48 mm, and a 34 mm glass-fibre reinforced polyamide thermal break, it achieves Class 4 air permeability, Class 7A water tightness, and Class C5 wind resistance across configurations of 2 to 6 sashes on up to 4 tracks — including full galandage solutions where sashes slide completely into the wall. Supporting sash widths up to 86.6″, heights up to 102.4″, and weights up to 529 lb, the COR 4900 Sliding delivers European-engineered performance at an architectural scale.

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Performance Ratings

  • Thermal Transmittance (Uw): From ≥ 1.2 W/m²K (≈ 0.21 Btu/h·ft²·°F)
  • Air Permeability: Class 4 — EN 12207
  • Water Tightness: Class 7A — EN 12208
  • Wind Load Resistance: Class C5 — EN 12210
  • Acoustic Insulation: Up to ~40 dB

Configurations

  • Sash Count: 2, 3, 4, or 6 sliding sashes
  • Track Options: 2, 3, or 4 tracks
  • Galandage: Sashes fully concealed within wall — up to 6 sashes
  • Central Mullion: 35 mm minimalist visible width
  • Sash Design: HiTech (straight lines) or Curva (rounded)
  • Corner Solutions: Internal & external — no intermediate mullion
  • Dual-Colour Finishing — Different interior & exterior finishes available

Profile & Construction

  • Frame Depth (2-track): 70 mm (2.76″)
  • Frame Depth (3-track): 126 mm (4.96″)
  • Frame Depth (4-track): 201 mm (7.91″)
  • Sash Profile Depth: 48 mm (1.89″)
  • Profile Wall Thickness: 1.6–2.0 mm (0.063–0.079″)
  • Thermal Break: ~34 mm (1.34″) polyamide — 25% glass fibre reinforced
  • Max Glazing Thickness: 36 mm (1.42″)
  • Glazing Options: Double glazing, acoustic laminated, multifunctional glass

Available Finishes

  • Powder Coat — Full RAL palette, smooth or structured
  • Wood-Effect — Decorative textured laminate finishes
  • Antibacterial Coating — Available on request
  • Anodized Aluminum — Premium metallic finish

Maximum Dimensions & Capacity Per Sash

Specification Imperial Metric
Maximum Sash Width ~86.6″ (7 ft 2.6 in) ~2,200 mm
Maximum Sash Height ~102.4″ (8 ft 6.4 in) ~2,600 mm
Maximum Sash Weight (Standard) ~529 lb ~240 kg
Maximum Sash Weight (Reinforced Rollers) ~309 lb ~140 kg

CORTIZO — Authorized Cortizo dealer — European-engineered aluminum systems.

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