How do your cleanroom windows prevent condensation in humid tropical climates?

Our flush double-glazed cleanroom windows use 5mm+5mm dual tempered safety glass with an integrated aluminum spacer frame packed with 3A molecular sieve desiccant. The sealed cavity is charged with dry nitrogen, preventing internal condensation and fogging even under extreme temperature/humidity differentials in Southeast Asia.

What type of bottom sealing do your cleanroom doors use?

All BESTCLEAN swing cleanroom doors feature automatic mechanical drop-down sealing gaskets. When closed, an internal linkage presses a silicone sweep tightly against the floor; when opened, the seal lifts automatically to eliminate floor friction and wear.

Are your cleanroom sandwich panels fire-rated for export projects?

Yes. We supply 50mm, 75mm, and 100mm sandwich panels with Class A non-combustible hydrophobic Rockwool cores (density 100-120 kg/m3), fire-resistant Glass Magnesium, or PIR/PUR cores meeting international ASTM and GB fire safety codes.

Cleanroom Doors, Double-Glazed Windows, Panels & Louvers

Cleanroom airtight doors and flush observation windows in pharmaceutical plant

Double-glazed flush window cross-section with desiccant and 3C safety glass

Custom cleanroom steel door with drop seal, viewing window and interlock

Cleanroom aluminum return air louver with nylon filter mesh

ISO 14644 COMPLIANT

CLASS A FIRE-RATED

FLUSH FINISH

Envelope Engineering Systems

Airtight Custom Doors: Single, unequal double & equal double swing doors. Heavy-duty aluminum honeycomb or rockwool core, 3D adjustable SUS304 hinges, and mortise lever cleanroom locks.
Automatic Drop-Down Seal: Concealed mechanical sweep gasket drops flush to the floor on closure, ensuring zero air leakage and pressure cascade retention (≥15-25 Pa).
Flush Double-Glazed Windows: Dual 5mm tempered safety glass perfectly flush with 50/75/100mm wall panels. Aluminum spacer with 3A molecular sieve desiccant prevents condensation and fogging.
Sandwich Wall & Ceiling Panels: 50/75/100mm tongue-and-groove panels with 0.5mm pre-painted galvanized steel (PPGI) or SUS304 skins. Hydrophobic Rockwool (120 kg/m3), Glass Magnesium, or PIR fireproof cores.
Double Return Air Louvers: Extruded aluminum or SUS304 with individually adjustable aerodynamic blades and washable primary nylon/aluminum filters.

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Product Specifications Matrix

Category	Model / Type	Standard Dimensions (W × H mm)	Core / Glass Spec	Airtight / Seal Performance	Standard Features
Cleanroom Door	BJ-DS (Single Swing)	800 × 2100 / 900 × 2100	Aluminum Honeycomb / Rockwool	Automatic drop-down bottom seal + EPDM gasket	SUS304 lever lock, flush vision panel, 3D hinges
Cleanroom Door	BJ-DD (Double Swing)	1200 × 2100 / 1500 × 2100	Aluminum Honeycomb / Rockwool	Astragal airtight overlap + bottom drop sweep	Sequence selector, dual flush bolts, push bars option
Traffic Free Door	BJ-FD (Impact Swing)	1200 × 2100 / 1800 × 2400	High-density PE / SUS304 core	Flexible rubber bumper seals, 180° swing	Scratch-resistant PC windows, tear-resistant bumper base
Double-Glazed Window	BJ-CW-R (Round Corner)	1180 × 900 / 1180 × 1200	5mm + 5mm Dual Tempered Glass	Argon/Dry N2 filled, molecular sieve desiccant	Flush with 50/75mm panel, black/white silk-screen border
Double-Glazed Window	BJ-CW-S (Square Corner)	1180 × 1000 / Custom	5mm + 5mm Dual Tempered Glass	Seamless silicone sealed cavity, anti-fogging	Anodized aluminum frame, fully flush dual-sided
Sandwich Panel	BJ-SP-RW (Rockwool)	Width: 980 / 1180; Thick: 50 / 75 / 100	Hydrophobic Rockwool (120 kg/m3)	Tongue-and-groove joint, Class A non-combustible	0.5mm PPGI steel skin with peelable protective film
Return Air Louver	BJ-RAL (Double Deflection)	600 × 300 / 800 × 400 / Custom	SUS304 / Powder-coated Aluminum	Aerodynamic adjustable blades for balanced airflow	Quick-release latches, washable G3/G4 filter media

Factory Production & Engineering Gallery

Cleanroom emergency escape double door with crash panic bar

Fire Escape Double Door

Full-length glass, heavy-duty panic push bar & vertical latching system.

Hermetic Sliding Door

Smooth automated track, large observation pane with airtight drop gasket.

SUS304 cleanroom impact free swing traffic doors

Impact Swing Door

Heavy-duty SUS304 leaf, high-impact polyethylene bumper panel, 180° bidirectional swing for forklift and personnel transit.

Dual layer adjustable cleanroom return air louver

Adjustable Return Louver

Dual-layer air deflection blades with rear primary filter cassette.

MANUFACTURING DIRECT ADVANTAGE · ZHANGZHOU BERKING BASE

CNC AUTOMATED PANEL PUNCHING & BENDING CUSTOM DIMENSIONS IN 7–15 DAYS CAD / BIM (REVIT) FAMILIES READY FOR SPECIFIERS CONTAINER LOADING OPTIMIZATION

Frequently Asked Questions

How do your windows prevent condensation in hot humid climates?

Dual 5mm tempered glass panes are hermetically bonded to an extruded aluminum spacer packed with 3A molecular sieve desiccant. The sealed cavity is filled with dry nitrogen to ensure dew-point performance below -40°C, completely eliminating fogging in Southeast Asian humidity.

What wall thicknesses are compatible with your swing doors?

Our aluminum wrap-around frames and flush clip-in trims are standardized for 50mm, 75mm, and 100mm cleanroom sandwich panels. We also manufacture subframe adaptors for masonry, drywall, and structural brick walls.

Can you integrate access control and electric interlocking?

Yes. All doors can be pre-wired at the factory with European/Japanese electric mortise locks, contactless sensor switches, magnetic interlocks (1-door open / 1-door lock), and emergency break-glass integration with fire alarms.

Can we order doors, windows, and equipment in a single mixed container?

Yes. That is our core competitive strength. We manufacture doors, windows, air showers, pass boxes, and FFUs in the same factory zone in Zhangzhou. Our logistics engineers calculate full 40HQ container load plans to eliminate broken stowage and reduce maritime freight costs by 20–30%.

Engineering a cleanroom facility?

Send your room dimensions and door schedule. Our engineering team returns layout drawings, hardware schedules, and factory-direct pricing in 48 hours.

Request Envelope BOQ →

Cleanroom Doors, Double-Glazed Windows & Wall Panels