Cleanroom Windows
Cleanroom Windows
Cleanroom windows(also called cleanroom glass panel) play an important role in the cleanroom enclosure system, which make it convenient for working staffs to observe the operation state in the production area while ensuring the cleanliness and airtightness, thereby effectively reducing cross contamination between rooms.
Cleanroom windows we design and manufacture are flush mounted with cleanroom walls, with good looking appearance and without collecting dust. Cleanroom windows are mainly composed of double-layer tempered glass and surrounding frames with built-in desiccant and inert gas. The structure is simple, which makes the installation easy.
Cleanroom windows are with many excellent performance, such as heat insulation, sound insulation, sealing, anti-fogging, corrosion resistance and are widely used in pharmaceutical, food, cosmetics, electronics and other industries.
Cleanroom Windows Specifications
| Thickness(mm) | 50 / 75 / 100 |
| Glass Type | Tempered Glass(Ordinary / Frosted / Fireproofing) |
| Glass Thickness(mm) | 5 / 6 / 8 |
| Border Color | Black / White |
| Border Shape | Right Angle / Round |
| Frame | Stainless Steel / Aluminum Alloy |
The size is customizable based on your requirements, please contact us to tailor cleanroom windows.
Cleanroom Windows Features
1. Easy to Install
Cleanroom windows adopt same connection type as cleanroom panels, and they can be easily connected together with “中” type aluminum profile.
2. Anti-Fogging
Cleanroom windows are sealed by sealants without air bubbles for preventing humidity from going inside. Meanwhile, the windows are filled with inert gas and drying agent in case of any potential fogging.
3. Safe and Durable
High strength tempered glass are adopted in case of any potential breaking during installation and operation, which can guarantee the safety of workers and working staffs.
4. Easy to Clean
Cleanroom windows can be flush mounted with panels, which can avoid collecting dust and bacteria.
5. Customizable
The window size, glass type, glass thickness, frame are with many options, and can be customized based on special requirements.
6. Crystal Clear
The light transmittance can be up to more than 90%, which makes it looks glittering and crystal clear.
Cleanroom Windows-The Complete FAQ Guide
Learn more about the cleanroom windows with this guide. We prepare some questions and answers for you.
- What Is A Cleanroom Window?
- What Are the Main Components of A Cleanroom Window?
- What Are the Key Features of A Cleanroom Window?
- How Is A Cleanroom Window Installed?
- How to Effectively Prevent Fogging in Cleanroom Windows?
- How to Choose the Thickness for Cleanroom Window Glass?
- Why Choose KINROM Cleanroom Windows?
What Is A Cleanroom Window?
A Cleanroom Window (also known as cleanroom glass panel) is a specialized glass panel installed in the partitions or doors of a cleanroom. Its primary purpose is to allow for non-intrusive observation of internal processes while strictly maintaining the integrity of the cleanroom’s controlled environment.
The main value of a cleanroom window is to enable real-time monitoring of highly sensitive operations (like semiconductor manufacturing or pharmaceutical filling) without the contamination risk of personnel entry. This allows supervisors and visitors to conduct visual inspections safely from outside. Additionally, it helps reduce the feeling of isolation for cleanroom operators by providing a visual connection to the outside.
Picture 1 Cleanroom Windows
What Are the Main Components of A Cleanroom Window?
A cleanroom window is a precision-engineered assembly designed to provide visual access while uncompromisingly maintaining the integrity of the controlled environment. It typically consists of three core components: 1. Frame 2. Glass and 3. Sealing System.
KINROM details each component below:
1. Frame
The frame acts as the structural skeleton of the window. It provides crucial support for the glass panel and ensures a secure and rigid attachment to the cleanroom wall.
Material options:
304 Stainless Steel: The most common choice for high-grade cleanrooms. It offers high strength, excellent corrosion resistance, and a smooth, non-particulating surface that is easy to clean and disinfect.
Anodized Aluminum: A lighter-weight alternative known for its good corrosion resistance, thanks to the protective anodized layer. It provides a smooth, non-porous surface and offers a cost-effective solution for many applications.
2. Glass
The glass panel is the critical component that enables observation. It must possess specific properties, including a smooth, easy-to-clean surface, high corrosion resistance, exceptional flatness, high light transmittance, and superior strength.
Material options:
Tempered Glass: This is a base-level, high-reliability option. Through a thermal treatment process, its mechanical strength is 3-5 times greater than that of standard glass. If broken, it shatters into small, granular pieces without sharp edges, ensuring safety. It can be furnished with a frosted finish for privacy where required.
Fire-Rated Glass: Manufactured with special techniques to maintain integrity for a specified duration during a fire. It effectively blocks flames and smoke, providing critical time for evacuation and is essential for areas with strict fire safety regulations.
Dimming Glass: A high-tech functional glass. By controlling the alignment of liquid crystal molecules via an electrical current, it can instantly switch between transparent and opaque states. This offers both clear visibility when needed and flexible privacy on demand, combining observation with isolation.
3. Sealing System
The sealing system is paramount to the window’s airtight integrity, directly impacting the cleanroom’s pressure stability and contamination control.
At the critical junction between the glass panel and the frame, KINROM employs high-quality silicone or EPDM gaskets. These materials offer excellent resistance to aging, extreme temperatures, and possess lasting elastic recovery, ensuring the window maintains superior airtightness throughout its long service life.
Picture 2 Cleanroom Windows Components (1. Glass 2. Sealing System 3. Frame)
What Are the Key Features of A Cleanroom Window?
Cleanroom windows are engineered with specific characteristics to fulfill their critical role in maintaining a controlled environment. Here are their key features:
Excellent Airtightness
This is the paramount requirement. Utilizing precision sealing systems and robust installation techniques, cleanroom windows effectively prevent external contaminants from entering and internal conditioned air from leaking, thereby ensuring the stability of the cleanroom’s pressure differentials and cleanliness levels.
High-Strength and Corrosion-Resistant
Frames are typically constructed from 304 stainless steel or anodized aluminum. The glass panels are made from tempered or laminated glass. These materials offer high mechanical strength, excellent resistance to corrosion, ensuring long-term durability and reliability.
Smooth, Flush, and Non-Dusting Surfaces
Designed with a flush-mounted structure and radiused corners, cleanroom windows avoid ledges and crevices where dust can accumulate. The smooth surfaces facilitate easy and effective cleaning and disinfection.
Safety and Compliance
The use of safety glass like tempered or laminated glass ensures that if breakage occurs, it does not create hazardous sharp fragments, protecting personnel and the cleanroom environment.
How Is A Cleanroom Window Installed?
The installation of a cleanroom window is a precision process critical to maintaining the integrity of the controlled environment. The following step-by-step sequence, which reflects correct field practice, guarantees optimal stability and sealing:
1. Establish a Stable Support Base
First, install the cleanroom panel below (the bottom) the window, securing it to the floor track. Next, install the full panel on one side (either left or right) of the window opening. These two panels create a stable “L-shaped” bracket that will support the window unit.
2. Position the Window Unit
Carefully place the cleanroom window unit into this bracket, resting it on the bottom panel and pushing it firmly against the pre-installed side panel.
3. Complete the Mullion Framework
With the window securely supported, attach the “中” shaped aluminum profiles to the top and the open side of the window frame. The mullions slot into the dedicated channels on the window frame, completing the rectangular support structure around the window.
4. Close the Wall Structure
Install the top panel and the remaining side panel by inserting their edges into the installed “”中 shaped aluminum profiles. This action fully encloses the wall.
5. Airtight Sealing
The key to performance is the sealant. Continuous beads of neutral silicone sealant must be applied to all joints between the windows and the panels to create a permanent, flexible, and airtight barrier.
How to Effectively Prevent Fogging in Cleanroom Windows?
Fogging inside cleanroom windows is a common issue that compromises visibility and environmental integrity, particularly in critical areas such as pharmaceutical plant viewing corridors. This problem typically arises from two main causes: Firstly, structural or sealing deficiencies in the window allow external moisture to penetrate the window. Secondly, the residual moisture inside the window condensates due to temperature fluctuations.
KINROM addresses fogging at its root through a systematic approach encompassing material selection, structural design, integrated drying systems, and controlled manufacturing conditions:
Optimized Sealing Structure and Materials
KINROM utilizes two-component neutral silicone sealant for bonding the frame and glass, ensuring structural integrity and reliable sealing. At the critical glass-frame interface, high-performance butyl rubber is applied as the primary seal. This material offers exceptional aging resistance and weather durability, effectively blocking moisture ingress and maintaining long-term airtightness under varying temperature and humidity conditions.
Integrated High-Efficiency Drying System
To adsorb any trace moisture, KINROM incorporates 3A-grade molecular sieve desiccant within the window frame. This material exhibits high adsorption capacity and selectivity, continuously maintaining a low dew point inside the airspace to prevent internal condensation.
Intelligent Manufacturing in a Controlled Environment
KINROM windows are produced entirely in a temperature and humidity-controlled cleanroom, preventing the intrusion of dust and moisture from the outset. The automated production line integrates systems for automatic cleaning and drying, high-definition glass inspection, intelligent pressing, and robotic sealant application. A smart control system ensures precise coordination between each process step, guaranteeing that every window delivered is in a highly dry and particle-free state.
How to Choose the Thickness for Cleanroom Window Glass?
The most critical factor in selecting the appropriate glass thickness for a cleanroom window is the size of the window. A larger area will bend more easily under pressure, requiring thicker glass to ensure sufficient rigidity and surface flatness.
The following general guidelines apply to standard, tempered glass panels:
(1) Small Windows (Area ≤ 3 ㎡): A glass with thickness of 5mm is typically sufficient to meet the requirements for rigidity and safety.
(2) Medium Windows (3 ㎡ < Area ≤ 4 ㎡): A glass with thickness of 6mm is usually recommended to provide the necessary stiffness.
(3) Large Windows (4 ㎡ < Area ≤ 6 ㎡): A thicker glass with thickness of 8mm is required to significantly increase rigidity, ensure flatness, and enhance overall safety.
Why Choose KINROM Cleanroom Windows?
Selecting cleanroom windows is a critical decision that impacts the long-term integrity, safety, and operational efficiency of your controlled environment. KINROM stands as your trusted partner by delivering engineered solutions that go beyond basic viewing panels. We ensure performance, durability, and value through meticulous design, advanced manufacturing, and unwavering quality control.
Here are the key reasons why leading companies in pharmaceuticals, semiconductors, and biotechnology trust KINROM:
1. Uncompromising Airtight Integrity and Structural Strength
Robust Sealing System: We employ a multi-stage sealing strategy. The primary seal uses high-performance butyl rubber for superior, long-lasting airtightness, while the structural assembly is fortified with two-component neutral silicone sealant. This ensures exceptional stability against pressure differentials and prevents contamination ingress.
Proven Framing Solutions: Our windows feature frames crafted from 304 stainless steel or anodized aluminum, ensuring corrosion resistance, smooth surfaces, and structural rigidity.
2. Superior Fogging Prevention for Uninterrupted Visibility
Built-in Prevention: We manufacture in a controlled environment and use 3A-grade molecular sieve desiccant within the frame to maintain a dry internal airspace.
Long-Term Reliability: Our advanced sealing techniques prevent moisture penetration over the entire product lifecycle, ensuring clear vision for critical processes and compliance audits.
3. Engineered for Safety and Compliance
Safety First: We primarily use tempered or laminated glass. Tempered glass is 3-5 times stronger and shatters into harmless granular pieces if broken. Laminated glass holds together even upon impact, providing the highest level of protection.
4. Customization to Meet Exact Application Needs
Precise Sizing & Framing: We provide custom sizes and framing configurations to fit your specific architectural details and installation requirements.
5. Quality Assured by Advanced Manufacturing
State-of-the-Art Production: Our automated production line, housed in a temperature and humidity-controlled cleanroom, ensures every window is produced free from contaminants. The process includes automated cleaning, high-definition inspection, and precision sealing.
Ready to specify the right window for your project? Contact our engineering team today for an expert consultation.
