ISO 6 Modular Cleanroom for Optical Component Manufacturing in Germany
Precision optical component manufacturing requires an extremely controlled production environment to prevent contamination from affecting optical performance, coating quality, and final product reliability.
For a German optical manufacturing company, Airkey designed and manufactured an ISO Class 6 modular cleanroom for optical component production and laser system manufacturing applications.
The Castle Series cleanroom provides a controlled environment for precision moulding, optical coating, inspection, and assembly processes where airborne particles can directly impact product quality and production yield.

Project Overview
| Parameter | Specification |
|---|---|
| Project | Optical Component Cleanroom |
| Location | Germany |
| Industry | Glass Moulding and Optical Production |
| Application | Optical Component Manufacturing |
| Cleanliness | ISO Class 6 (Class 1,000) |
| Area | 31.5㎡ |
| Internal Height | 3.0 m |
| Series | Castle Series |
| Model | FSP-I6T-A32(4.5×7)-F |
Client Profile
The customer, Vitrum Technologies, provides systems and process technologies for glass moulding and optical production.
The company specializes in manufacturing high-precision optical elements, including:
- Aspherical optical elements
- Free-form optical components
- Wafers
- Advanced glass products
Its production technologies focus on achieving high precision and complex optical geometries.

Why Optical Manufacturing Requires a Cleanroom
Optical component manufacturing is highly sensitive to airborne contamination.
Even extremely small particles can affect optical performance during critical processes.
Precision Glass Moulding
During high-temperature glass softening and moulding, particles on mould surfaces or glass substrates can become permanently embedded into optical surfaces.
This may create defects that affect optical quality and manufacturing yield.
Optical Coating Process
Before coating, dust particles and organic contaminants on lens surfaces may reduce coating adhesion and cause coating defects.
Because optical coating thickness can reach the nanometre level, small particles may create surface protrusions, affecting coating uniformity and increasing light scattering.
Precision Optical Inspection
During microscopic inspection of optical properties, such as interference fringes, airborne particles can be mistaken for scratches or defects.
This may result in incorrect quality evaluations and reduced production efficiency.

Airkey Optical Manufacturing Cleanroom Solution
Factory-Prefabricated Modular Cleanroom System
As a professional modular cleanroom manufacturer, Airkey provides factory-built cleanroom systems for precision manufacturing industries, including optical components, laser systems, semiconductor-related applications, and advanced manufacturing.
The Germany project uses the Castle Series modular cleanroom structure, combining factory prefabrication with customized engineering.
Explore Airkey modular cleanroom solutions:
Premium Modular Structure and Cleanroom Materials
The cleanroom uses sandwich panel walls with smooth and seamless surfaces designed for ISO-class controlled environments.
The structure provides:
- Easy cleaning
- Reduced particle accumulation
- Stable cleanroom performance
- Long-term durability
A dedicated pass-through chamber is installed for controlled material transfer.
Personnel access uses automatic swing doors equipped with wave sensors, enabling hands-free operation and reducing unnecessary contamination risks.

ISO 6 Air Filtration System
The cleanroom uses EC energy-saving FFUs to maintain ISO Class 6 cleanliness.
The FFU system provides stable airflow and high-efficiency filtration suitable for optical production environments where particle control is critical.
Switchable Privacy Glass Windows
To support both production confidentiality and daily inspection requirements, the cleanroom is equipped with switchable privacy glass windows.
The windows can switch between:
Transparent Mode
- Production visibility
- Equipment inspection
- Customer visits
Opaque Mode
- Confidential production protection
- Privacy control
The switching function is controlled remotely, allowing operators to quickly adjust visibility according to operational needs.
Customized Air Conditioning and Environmental Monitoring
The cleanroom integrates a ceiling-mounted cassette air conditioning system for temperature control.
Factory-prepared mounting holes simplify installation, while the air conditioning system works together with return air wall panels to improve energy efficiency.
An online particle counter continuously monitors airborne cleanliness performance to support compliance control.
Removable Wall Panel Design for Large Equipment
Optical manufacturing equipment often requires precise installation and future maintenance.
To support large production equipment movement, Airkey designed removable wall panels.
The panels can be quickly removed and installed manually without heavy tools, allowing large machines to enter or leave the cleanroom while maintaining structural integrity.

Factory-Built and Factory-Proven Cleanroom Performance
Before shipment, the cleanroom was fully assembled and tested at Airkey's factory.
All components underwent inspection, including key performance parameters such as:
- Cleanliness
- Airflow velocity
- Illumination
This factory verification approach helps ensure reliable installation performance at the customer's site.
Engineering Highlights
- ISO 6 optical manufacturing cleanroom
- Modular cleanroom manufacturer solution
- Castle Series cleanroom system
- Designed for laser and optical component production
- Precision glass moulding contamination control
- Optical coating protection environment
- Online particle monitoring
- EC energy-saving FFU system
- Automatic swing doors with wave sensors
- Pass-through chamber for material transfer
- Switchable privacy glass windows
- Custom air conditioning system
- Removable wall panels for large equipment
- Factory-built and factory-tested
Why Choose Airkey as Your Optical Manufacturing Cleanroom Manufacturer?
Airkey designs and manufactures customized modular cleanroom systems for precision industries, including:
- Optical component manufacturing
- Laser equipment production
- Semiconductor manufacturing
- Medical devices
- Pharmaceutical production
- Advanced laboratories
Our factory-prefabricated cleanroom systems combine engineering customization, controlled airflow technology, and factory validation to help manufacturers achieve stable production environments.
Explore Airkey custom modular cleanroom systems:
Custom Modular Cleanroom System

Project Outcome
The completed ISO 6 modular cleanroom provides a controlled manufacturing environment for optical component production in Germany.
By combining particle control, customized environmental management, flexible equipment access, and factory verification, Airkey delivered a precision cleanroom solution supporting optical manufacturing quality and production reliability.
FAQ
Why do optical component manufacturers need cleanrooms?
Optical manufacturing processes such as moulding, coating, and inspection are highly sensitive to airborne particles. Contamination can affect optical quality, coating performance, and production yield.
What cleanroom classification is used for optical production?
This project uses an ISO Class 6 (Class 1,000) modular cleanroom for optical component manufacturing.
Can modular cleanrooms accommodate large optical equipment?
Yes. This project uses removable wall panels that allow large equipment to enter and exit without compromising the cleanroom structure.
How is cleanliness monitored?
The cleanroom integrates an online particle counter for continuous cleanliness monitoring.
Are modular cleanrooms tested before delivery?
Yes. The cleanroom is fully assembled and tested at Airkey's factory before shipment, including cleanliness, airflow velocity, and illumination verification.







































































