Cleanroom Technology from a Single Source
SCHILLING ENGINEERING
Whether it’s a cleanroom compliant with ISO 14644 or GMP, a cleanroom tent for short-term projects, or a CNC Cleanroom for technical cleanliness—SCHILLING ENGINEERING develops the solution that fits your process.
For over 25 years, we have been supporting companies from the initial planning stage through to a high-quality cleanroom solution. One point of contact. No interfaces. No coordination effort.
Cleanrooms
Our modular cleanroom systems provide you with a controlled and qualified environment in accordance with ISO-14644 or GMP that is precisely tailored to your requirements. We will advise you in detail and provide you with a turnkey solution from a single source.
Cleanroom tents
With a cleanroom tent or cleanroom booth, you can quickly establish controlled production conditions in accordance with ISO Classes 5 through 8. These modular systems can be set up on your own and put into operation immediately. Flexible and cost-effective—for temporary projects, additional capacity, or changing requirements.
CNC Cleanrooms
Our CleanEasyCell CNC Cleanrooms meet the technical cleanliness requirements of VDA 19 and ISO 8—as a modular system designed for self-assembly. Cost-effective, expandable, and ready for use in no time.
A pioneer in cleanroom technology for over 25 years
In our family business, everything revolves around cleanroom technology – and we are already in the second generation. Safe solutions for particle-free environments are our passion and our expertise. Safety for processes, people and products is our top priority. For every project, we look for the ideal balance between state-of-the-art technologies and proven engineering.
We offer even more than the "pure" environment
Cleanroom knowledge
Topics around the Cleanroom. Browse through our media library.
FAQ
Cleanroom technology
What is cleanroom technology?
The term cleanroom technology covers all technical and organizational measures that serve to control the number of particles introduced into or generated in the cleanroom. This includes the actual cleanroom system with filter and air circulation systems, but also the structured introduction of materials and personnel, the specification of the materials used, the cleaning of the cleanroom, monitoring and much more. Cleanroom technology therefore covers a much wider spectrum than just the cleanroom itself. A defined quality and safety standard is guaranteed through the use and coordination of the various elements of cleanroom technology. Eliminating the damaging influence of particles and microorganisms ensures significantly higher quality and safety.
The use of cleanroom technology is therefore increasingly becoming the key to the reliability and cost-effectiveness of products with high quality requirements. Without controlled production processes under cleanroom conditions, many sensitive products can no longer be manufactured today, such as in the semiconductor industry, microtechnology or medical technology, where even the smallest particle deposits render the end product unusable. Another important aspect of cleanroom technology is the reduction of germs and microorganisms, which is absolutely essential in the manufacture of medicines and pharmaceutical products, but also leads to a significant improvement in quality in the food and cosmetics industries.
What is a cleanroom class according to ISO?
When it comes to cleanrooms, there are various gradations that define the particle purity. These gradations are specified in cleanroom classes according to the ISO standard with the numbers one to nine. The lowest cleanroom class ISO 1 describes the cleanest room and cleanroom class ISO 9 approaches the values of natural air in a room.
So if you want to achieve the cleanest of cleanrooms, you need an ISO 1 classification. For a detailed overview, you can download a cleanroom class table as a PDF on this page
What is a cleanroom class according to GMP?
GMP (“Good Manufacturing Practice”) is an English term that originally comes from the manufacture of pharmaceuticals and active ingredients. Good manufacturing practice” describes certain guidelines for quality assurance of production processes and environments in the pharmaceutical industry.
The cleanroom classes according to GMP are based on the ISO standards in terms of particle concentration, but have additional limit values for harmful microorganisms. In contrast to the ISO standard, GMP cleanroom classes are labeled with the letters A to D.
Cleanroom class A describes the highest cleanliness level and cleanroom class D the lowest cleanliness level with the highest maximum permissible particle concentration. To get from the lowest to the highest cleanroom class according to GMP, the intermediate cleanroom classes C and B must also be passed through. An overview of the permitted particle numbers can be found here.
What is a cleanroom class table?
A cleanroom class table is an international standard for classifying cleanrooms according to ISO 14644-1 and GMP. The International Organization for Standardization – ISO for short – is an independent organization dedicated to setting international standards for procedures. A cleanroom class table lists the internationally approved particle size for the different ISO cleanroom classes or cleanroom classes according to GMP.
So, anyone who wants to achieve the cleanest of all cleanrooms needs a cleanroom classification of ISO 1. To achieve this, samples must contain 10 or fewer particles measuring 0.1 micrometers per cubic meter. From there on, the scale allows for more and larger particles. In an ISO Class 5 cleanroom—which, for example, meets the very strict requirements of microchip manufacturing—up to 100,000 particles measuring 0.1 micrometers may be detected. The number of particles measuring 1.0 micrometers must not exceed 823. ISO Class 9 is the “lowest” cleanroom class and is similar to normal room air. In these rooms, particle sizes of 0.1 micrometers are no longer considered. Here, 8,320,000 or fewer particles measuring 1 micrometer and 293,000 or fewer particles measuring 5 micrometers are permitted.