Vertical Upward Folding Servery Pass Through Windows

Unique Upward Folding Servery Design
Sash folds vertically upwards and tucks at the top frame. No side stacking, does not occupy counter space, ideal for kitchen and cafe pass-through
Safe Gas Strut / Hydraulic Support System
Premium gas spring hardware, holds sash steadily at any opening angle, soft and easy lifting operation, anti-drop protection.
Optional Thermal Break Aluminum Frame
PA66 nylon thermal break strip optional for better insulation and anti-condensation; economical all-aluminum non-break option available.
High-Performance Insulated Glass
Double tempered insulated glass, optional Low-E, laminated or frosted glass with argon filling. Blocks UV rays, reduces noise and saves energy.
Multi-Channel Weather Sealing
EPDM rubber perimeter seals, excellent watertightness, air tightness and wind resistance, suitable for Nordic wet and windy climates.
Full Customization
Custom width & height, powder coating / PVDF finish, RAL colors, different glass options. Manual operation as standard, motorized electric version optional.
Wide Commercial & Residential Use
Perfect for kitchen serving counter, cafe, restaurant, bar, food kiosk, villa patio and hotel leisure areas.

Product Name： Aluminum Fold Up Window / Vertical Upward Folding Servery Window

Frame Material： 6063-T5 Aluminum Alloy; Optional PA66 thermal break strip

Profile Thickness： 1.6mm / 1.8mm / 2.0mm customizable

Glass Type： Double tempered insulated glass; Optional Low-E / Laminated / Frosted glass, argon gas filled

Common Glass Config： 5+12A+5mm / 6+12A+6mm

U-value： 1.9 ~ 2.9 W/(m²·K) (depends on glass & thermal break)

Noise Reduction ：28–38dB

Support Hardware： Gas strut / hydraulic support, soft open & hold-open function

Operation： Manual (standard), electric motorized optional

Surface Finish： Powder coating, PVDF coating, anodized, wood grain transfer

Color： Black, white, grey, bronze, custom RAL color

Application： Kitchen pass-through, cafe counter, restaurant, bar, villa, commercial kiosk

Custom Thermal Break Aluminum Fold Up Windows