Stainless Steel Furniture: The Perfect Combination of Corrosion Resistance and Safety
Cleanroom stainless steel furniture is a kind of special functional furniture specially designed for clean environments (such as medical operating rooms, electronic workshops, laboratories, pharmaceutical factories, etc.), and it needs to meet strict requirements such as high cleanliness, corrosion resistance, easy cleaning, dust-proof and antibacterial. The following is a detailed analysis from aspects such as core requirements, common types, design key points, material selection, and cleaning and maintenance:
1.Key points of design and customization
1.1 Detailed process description
Welding process: Full welding is carried out by argon arc welding. Grind and polish the weld seam until it is flush with the base material to prevent the accumulation of bacteria in the gap. Spot welding or screw connection is prohibited to prevent metal particle contamination caused by loose screws.
Surface treatment: Electrolytic polishing: The surface is made smooth through electrochemical action, with a roughness of ≤Ra0.4μm, suitable for high cleanliness grades (such as ISO grade 5);
Passivation treatment: Remove surface impurities with nitric acid solution to form an oxide film and enhance corrosion resistance.
1.2 Functional Design
Embedded installation: Furniture is flush with walls and floors, reducing hygiene dead corners (such as embedded equipment cabinets).
Detachable and washable structure: The bottom plates of the shelves and drawers are designed to be detachable, facilitating thorough cleaning.
Identification system: Laser-etched marks (such as "Sterile Area" and "Contaminated Area") are set up on the outside of the cabinet to prevent handwritten labels from falling off and getting contaminated.
2. Cleaning and maintenance specifications
2.1 Daily Cleaning process
Tools: Use a microfiber cloth that does not shed fibers + deionized water or neutral detergent (such as 75% alcohol, special cleanroom cleaner);
Sequence: From high to low (first the top of the cabinets, then the shelves and drawers), from the clean area to the contaminated area;
Frequency: Wipe the surface once a day and conduct a deep cleaning once a week (including the interior of the drawers and the bottom brackets).
2.2 Disinfection and Sterilization
Wipe the cabinet with a 0.5% sodium hypochlorite solution every week. After 30 minutes, wipe it clean with deionized water.
High-risk areas (such as medical furniture) can be regularly disinfected with hydrogen peroxide steam (electronic components need to be disassembled in advance).
2.3 Regular Inspection
Check monthly for any signs of cracking or oxidation at the welding points and whether the screws are loose (if any).
Test the surface roughness once every quarter (using a roughness meter) to ensure that the cleanliness does not decline due to wear.
3. Customized preventive measures
3.1 Confirm the cleanliness level in advance
Clearly define the ISO grade of the cleanroom (for example, ISO grade 5 corresponds to a 100-grade cleanroom), and different grades have strict standards for the surface roughness and gap size of furniture (for example, ISO grade 5 requires that all joints be ≤0.2mm).
3.2 Cooperate with the cleanroom decoration
The size of the furniture should match the wall panels and floor modules of the clean room (for example, the standard module of a modular clean room is 600mm), to avoid generating dust during on-site cutting.
When installing embedded furniture on the wall, it is necessary to reserve installation space to ensure sealing.
3.3 Verification and Testing
After the customization is completed, material inspection reports (including nickel, chromium and molybdenum content), surface roughness inspection reports, and cleanroom compatibility test reports (such as dust particle emission tests) must be provided.
Suzhou Pharma Machinery Co.,Ltd.
2025/10/24
Alice
