Clean Booth in Clean Class 100

Widely used in Electronic component assembly and inspection Localized sterile operations in pharmaceuticals and laboratories PCB and SMT production lines Precision instrument and optical product assembly Filling and inspection areas in the food and cosmetics industries.

1. Main Frame Structure

This is the "skeleton" of the clean booth, determining its overall shape, size, and stability.

Materials:

Industrial Aluminum Profiles: This is the most mainstream and common choice. Typically, high-quality aluminum alloy (such as 4040 or 4080 profiles) with an anodized surface finish. They offer the advantages of being lightweight, high-strength, corrosion-resistant, aesthetically pleasing, and easy to assemble and disassemble.

Stainless Steel: Primarily used in applications with extremely high requirements for cleanliness, corrosion resistance, or structural strength, such as in certain bio pharmaceutical or food industries.

Design Features:

Modular Design: The frame uses standardized components and connectors, allowing flexible assembly into booth bodies of different sizes (length, width, height), offering excellent scalability and adaptability.

Stability: Stability is ensured through the use of reinforcing struts, leveling feet, or floor anchoring to prevent shaking caused by fan vibration or personnel contact.

Enclosure Panel Structure

These are the "walls" that form the enclosed space of the clean booth, directly impacting the sealing of the clean area and the maintenance of cleanliness.

Materials:

Color Steel Sandwich Panels: The most common material, typically consisting of steel sheets on the outside filled with core materials like Polystyrene (EPS), Polyurethane (PU), or Rock Wool. Among these, rock wool color steel panels are widely used for their excellent fire resistance.

Tempered Glass: Often used for side or front panels, providing good visibility for observing internal operations. Can be fully transparent or frosted.

Acrylic Sheets: Serve as a lower-cost transparent material option, but with less strength and durability compared to tempered glass.

Connection Method:

Panels are connected via specialized tongue-and-groove joints, with sealant applied strictly at the seams to ensure the booth is airtight, preventing the ingress of external contaminants

HEPA: Filtering efficiency ≥ 99.97% for particles ≥ 0.3μm.

ULPA: A higher-grade filter, efficiency ≥ 99.999% (for 0.1-0.2μm particles). Used in ultra-high standard fields like semiconductors and bio safety laboratories.

This is the "heart" of the clean booth, core to creating the clean environment.

Core Components:

FFU (Fan Filter Unit): The most critical component of a clean booth. It is a modular unit integrating a HEPA filter and a fan. FFU are installed on the ceiling grille of the booth structure.

Fan: Provides the power for air circulation, pushing air downward from the FFU.

Airflow Pattern:

Vertical Laminar Flow: The most common form. FFU are installed on the top, causing clean air to flow vertically downward like a piston, carrying away contaminants. Air is returned through bottom or side return air panels, passes through pre-filtration, and is then drawn in again by the FFU fan and pushed through the HEPA filter, forming a cycle.

Horizontal Laminar Flow: FFU are installed on the side, causing air to flow horizontally. Suitable for certain specific process requirements.