Z75X Thermal Break Casement Window

Name: Z75X Thermal Break Casement Window
Brand: Forge Windows

Z75X Thermal Break Casement Window is a Forge Windows thermal break casement window. The current product record lists profile wall thickness: 1.8mm; opening configurations: Hinged/Under-hung/Outward-opening and under-hung/Bi-opening; Standard color: Metallic Gray Sand Texture Coffee.

Confirm final dimensions, configuration, glass or panel options, hardware, finish samples, performance documents, and installation requirements for the quoted product before ordering.

Product wall thickness:: 1.8mm

Can be used as an opening method:: Hinged/Under-hung/Outward-opening and under-hung/Bi-opening

Standard color:: Metallic Gray Sand Texture Coffee

Standard glass:: 5+18A+5

Profile width:: 75mm

Glass fan thickness:: 75mm

Glass pressure line structure:: Closed-edge bevel pressing line

Corner assembly process:: Corner code glue injection

Paint finish:: Electrostatic powder coating (Juhua Powder)

Thermal insulation strip:: Sixth-generation multi-cavity 25.3mm thermal insulation strip

Hardware System:: VIBCH Premium Model Baseless Hardware

gauze fan:: /

Window width:: 86mm

notch:: 48mm rubber strip 9mm

immersion depth:: 20mm gasket 5mm

drain:: Floor drain

Outer frame visible surface:: Indoor 32mm / Outdoor 52mm

Visible surface of the central column:: Outdoor 66.6mm / Indoor 26.6mm

guardrail:: Optional configuration

Watertight performance:: Level 6

Sound insulation performance:: Level 4

airtightness:: Level 8

Wind resistance:: Level 9

Thermal insulation performance:: Level 8

Fan size range:: Fan width (net dimension): 500–1000 mm / Fan height (net dimension): 800–2200 mm

Large glass range:: Double-glazed glass can be made up to 10 millimeters thick.

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Z75X is an upgraded high-end 75mm multi-chamber thermal break casement window system, specially engineered for high-rise buildings, coastal windy areas, noise-prone residential villas, and energy-saving commercial projects. Compared with standard 65 series and ordinary 75mm windows, the Z75X achieves comprehensive upgrades in structural strength, airtightness, water tightness, thermal insulation and sound insulation, solving the common pain points of traditional windows such as easy deformation, poor energy efficiency, water leakage and weak wind resistance.

Built with a 75mm wider frame depth and upgraded 1.8mm thick 6063-T5 high-precision aluminum profile, the Z75X features 28% higher structural rigidity than conventional 1.4mm profile windows. It effectively avoids sash sagging and frame deformation under long-term use, and supports larger custom glass openings, perfectly adapting to high-floor and strong-wind coastal environments with a wind resistance rating up to Grade 10 (≥500Pa).

In terms of energy-saving performance, the Z75X adopts a 3-chamber insulated structure and a widened 25mm PA66 GF25 nylon thermal break strip — a 39% wider heat insulation area than ordinary 18mm strips. It cuts off indoor and outdoor heat conduction thoroughly, controlling the overall window heat transfer coefficient U-value ≤1.8 W/(㎡·K). This outstanding thermal insulation performance greatly reduces air conditioning and heating energy consumption, delivering stable energy-saving effects in both extreme high-temperature and low-temperature climates.

For sealing and weather resistance, the Z75X equips a professional triple EPDM full sealing system and 12mm deep frame-sash overlapping design, far exceeding the double-sealing structure of standard windows. It reaches top-grade airtightness and water tightness, completely preventing rainwater infiltration and outdoor air convection. Matched with a hidden vertical drainage system and pressure balance technology, it avoids water backflow and wind howling, ensuring clean and durable window performance in rainy and typhoon weather.

In acoustic performance, the optimized multi-layer sealing and hollow glass configuration enables the Z75X to achieve 35–45dB high-efficiency sound insulation, effectively isolating outdoor traffic noise, street noise and environmental noise, creating a quiet and comfortable indoor living and working space.

All hardware adopts high-grade anti-corrosion accessories, supporting more than 50,000 smooth opening and closing cycles with low maintenance. The whole window has a service life of over 25 years, with optional CE, NFRC, AS2047 and other international certifications, fully compliant with global residential and commercial building standards. As a cost-effective upgraded alternative to ordinary 65 series and standard 75 series windows, the Z75X is the ideal high-performance exterior window solution for mid-to-high-end construction and renovation projects worldwide.