China Tempered Glass Door Manufacturer, Supplier, Factory

A tempered glass door represents the pinnacle of modern entryway design, blending robust safety with crystalline transparency. For projects demanding lightweight resilience, the Aluminum Frame Glass Door delivers a sleek, corrosion-resistant profile suitable for coastal condominiums and urban storefronts. In settings requiring uncompromising structural integrity, the Stainless Steel Frame Glass Door stands up to heavy daily use with a polished or brushed finish that maintains its luster. The Safety Tempered Glass Door prioritizes occupant protection through heat-strengthened fabrication that crumbles into harmless pebbles on the rare occasion of breakage. For a dramatic, uninterrupted view, the Full Glass Entry Door floods interiors with natural light while eliminating bulky framing, making tight spaces feel expansive. Each of these solutions leverages the same core tempered glass technology, heat-soaked and calibrated to meet stringent deflection limits.


The Tempered Glass Door is engineered with meticulous attention to flatness, edgework, and optical purity. Raw float glass is cut to precise dimensions, then conveyed through a tempering furnace where it reaches over 600°C before being rapidly quenched by high-velocity air jets. This process induces a compressive surface layer exceeding 10,000 psi, roughly four to five times stronger than annealed glass of identical thickness. The resulting panel resists thermal stress from direct sunlight, accidental impact from furniture or debris, and cyclic wind loading without warping. Below is a breakdown of core physical characteristics and available configurations that architects and contractors find essential during specification.

  • Substrate: Low-iron or clear soda-lime float glass with rolled, polished, or patterned surface options
  • Edge treatment: Flat polished, pencil ground, or beveled edges with 1 mm max chip tolerance
  • Fragment compliance: Maximum particle weight and count per ANSI Z97.1 and EN 12150-1
  • Thermal shock resistance: Withstands sudden temperature differentials up to 200°C
  • Hole and notch placement: CNC-drilled before tempering, minimum 6 mm from any edge
  • Coating compatibility: Post-temperable pyrolytic low-E or ceramic frit for solar control
ParameterSpecification
Standard Thickness6 mm, 8 mm, 10 mm, 12 mm (1/4" to 1/2")
Custom Thickness Range4 mm to 19 mm upon request
Maximum Panel Size2,440 mm × 4,800 mm (larger with multi-panel assembly)
Visible Light Transmission89% (clear), 72% (low-iron), variable with tint
Surface Compression≥ 10,000 psi per ASTM C1048
Bow and Roller Wave≤ 0.3% of edge length (standard flatness)
Impact ClassIBC Class A, CPSC Cat. II, or custom CPD ratings
Hinge Cutout Tolerance± 1.5 mm position, ± 0.5 mm diameter
Sound Transmission Class28 to 35 STC dependent on thickness and lamination
U-Factor (Non-Coated)1.0 to 1.2 W/m²K at center of glass

Dimensional accuracy is critical for the Tempered Glass Door to mate seamlessly with top-hung or bottom-rolling hardware. Each leaf undergoes laser-guided measurement to confirm diagonal squareness within 2 mm per meter of panel length. Roller wave distortion, a common artifact of horizontal tempering, is suppressed below 0.12 mm peak-to-valley across the vision area, preserving undistorted reflections. Cutting, notching, and edge arris removal occur before the tempering cycle because any post-temper mechanical alteration would cause immediate fracture of the entire panel. For active storefronts or high-traffic corridors, we offer a heat soak option: panels are held at 290°C for four hours to virtually eliminate the risk of spontaneous nickel sulfide inclusion failure, a protocol outlined in EN 14179-1. The glass can further be combined with transparent PVB or ionoplast interlayers to create laminated tempered assemblies that retain structural integrity even after a pane is shattered, important for overhead or balustrade applications adjacent to door openings.

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