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Laminar Flow Clean Booth

STJh provides laminar flow clean booth solutions with FFU, HEPA filters, aluminum frames, PVC curtains, LED lighting, stainless worktables, and clean workstation layouts.

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Product Description

Laminar Flow Clean Booth Project

This laminar flow clean booth project was designed for a precision manufacturing facility in Bangkok, Thailand. The client needed multiple local clean work areas inside an existing factory for precision inspection, small component handling, clean assembly, material staging, and controlled workstation operation.

STJh Cleanroom provided a multi-booth laminar flow clean booth solution including aluminum frame structures, transparent PVC strip curtains, top-mounted laminar flow FFU units, HEPA filtration, bright LED lighting, stainless steel worktables, wire shelving carts, rolling material racks, clean storage trays, and installation guidance.

The project uses several laminar flow clean booths arranged in a continuous row inside the factory. Compared with building one large hardwall cleanroom, this solution allows the client to create several independent clean work zones while keeping the production hall open, flexible, and easy to manage.

Project Overview

Project Type	Laminar Flow Clean Booth Project
Project Location	Bangkok, Thailand
Application Industry	Precision Assembly, Component Inspection, Electronics Support Process, Small-Part Handling, and Local Clean Area Upgrade
Clean Booth Quantity	4–6 laminar flow clean booths arranged in a continuous production row
Clean Booth Area	Approximately 25–35㎡ per booth, with a total clean booth area of approximately 140–180㎡
Cleanliness Class	ISO 5–ISO 7 local clean environment, depending on FFU layout, HEPA filter configuration, booth size, airflow design, and operating process
Booth Structure	Aluminum profile frame with transparent PVC strip curtains, top laminar flow FFU units, bright LED lighting, stainless steel worktables, and mobile storage racks
Airflow Design	Vertical laminar flow air supply from top-mounted FFU and HEPA filter units toward the clean work area
Main Systems	Laminar flow air supply system, FFU filtration system, HEPA filter system, softwall enclosure system, LED lighting system, workstation system, and material staging system
Main Equipment	FFU units, HEPA filters, aluminum profiles, transparent PVC strip curtains, LED lights, stainless steel worktables, wire shelving carts, rolling racks, material trays, and clean storage bins
Project Goal	Build multiple local laminar flow clean zones inside an existing factory for cleaner, more organized, and more controlled precision work

Project Background

The client operated an existing factory with several precision workstations distributed along the production area. Some processes required a cleaner local environment, especially small-part inspection, fine assembly, component staging, and controlled handling. However, the entire factory did not need to be converted into a full cleanroom.

The client needed a practical clean booth solution that could provide cleaner air directly over key workstations. The system also had to support multiple work areas, maintain open factory circulation, and allow carts, racks, operators, and materials to move smoothly along the production aisle.

STJh Cleanroom designed a row of laminar flow clean booths with transparent softwall enclosures and top-mounted FFU filtration units. Each booth creates an independent local clean zone, while the complete row supports a clean and organized production workflow inside the existing factory.

Client Pain Points

Local cleanliness was not enough: Precision inspection and small-part handling needed cleaner air than the general factory environment.
Multiple workstations required clean protection: The client needed several clean zones instead of one single isolated booth.
Full cleanroom construction was not necessary: The production process only required local clean air control over specific work areas.
Factory circulation had to remain open: Operators, carts, trays, and material racks needed enough space to move along the aisle.
Workstations needed better organization: Stainless tables, wire carts, bins, trays, and tools needed a clear layout inside each booth.
Airflow direction was important: The client needed top-down filtered air over the clean working area to reduce particle impact on sensitive operations.

Clean Booth Solution

STJh Cleanroom provided a multi-booth laminar flow clean booth system based on the client’s factory layout, clean process requirements, workstation quantity, material movement route, and available floor space. The booths were arranged in a continuous row to support different workstations while maintaining a clean and efficient production flow.

Each clean booth uses an aluminum profile frame and transparent PVC strip curtain enclosure. This structure separates the clean work area from the surrounding factory while keeping the internal process visible. Operators and supervisors can easily observe booth conditions, workstation layout, and material movement.

Top-mounted FFU units with HEPA filters provide vertical laminar flow air supply. The clean air is delivered from the ceiling area downward toward the workstations, helping protect sensitive parts, trays, work surfaces, and handling processes from airborne particles.

Key Clean Booth Systems

1. Laminar Flow Air Supply System

The project uses a top-down laminar flow concept. FFU units and HEPA filters are installed above each booth to supply clean air vertically over the working area. This helps create a cleaner local environment for precision operation.

Vertical clean air supply from the booth ceiling
Top-mounted FFU laminar flow units
HEPA filter particle control
Suitable for local ISO 5–ISO 7 clean work areas

2. Aluminum Frame Structure

Each laminar flow clean booth uses an aluminum profile frame. The structure is lightweight, stable, and suitable for installation inside an existing factory. It supports FFU units, lighting, PVC curtains, stainless worktables, and internal accessories.

Aluminum profile booth frame
Stable support for FFU and lighting systems
Modular design for multiple booth layouts
Suitable for row-type clean booth installation

3. Transparent PVC Softwall System

Transparent PVC strip curtains were used around the booths to form softwall clean enclosures. The clear curtain design allows visibility from outside while separating the clean work area from the surrounding factory environment.

Transparent PVC strip curtain enclosure
Clear visibility for process supervision
Practical access for operators and rolling carts
Flexible structure compared with fixed cleanroom walls

4. FFU And HEPA Filtration System

The clean booths are equipped with FFU units and HEPA filters. The number and layout of FFU units can be configured according to booth size, required cleanliness class, workstation positions, and process sensitivity.

FFU fan filter units mounted above each booth
HEPA filters for clean air supply
Configurable airflow according to booth area
Independent clean air control for each booth

5. LED Lighting System

Bright LED lighting was integrated into each booth to support inspection, assembly, material checking, and clean workstation operation. The lighting design helps operators work clearly without making the space feel crowded.

Integrated LED lighting inside each booth
Clear visibility for detailed operation
Reduced shadow on work surfaces
Suitable for precision inspection and small-part assembly

6. Stainless Workstation System

Stainless steel worktables were arranged inside each clean booth. These workstations support component handling, inspection, preparation, and light assembly. The layout keeps the working area clean, simple, and easy to maintain.

Stainless steel worktables
Clean and easy-to-maintain work surfaces
Practical space for trays, tools, and small parts
Suitable for precision operation under laminar flow

7. Material Staging And Cart System

Wire shelving carts, rolling racks, trays, and storage bins were arranged inside and beside the booths. This supports material preparation, transfer, temporary storage, and organized production without overcrowding the clean area.

Wire shelving carts on casters
Rolling racks for clean material movement
Trays and bins for component staging
Open aisle design for smooth material flow

8. Multi-Booth Row Layout

The booths were arranged in a row inside the factory to support multiple clean workstations. This layout provides separate clean zones while maintaining a continuous production flow and a clear aisle for operators and carts.

4–6 booths arranged as a clean production row
Separate clean zones for different tasks
Open aisle space for people and material carts
Easier future adjustment than fixed cleanroom construction

Problems Solved for the Client

Problem	Laminar Flow Clean Booth Solution	Result
Sensitive operations were exposed to general factory air	Top-mounted FFU and HEPA filters supplied clean laminar airflow over each workstation	Cleaner local working environment for precision handling and inspection
Several processes needed separate clean areas	Multiple laminar flow clean booths were arranged in a continuous row	Separate clean zones with a clear and organized production layout
A full cleanroom renovation was not required	Local clean booth solution was used instead of building a large fixed cleanroom	Lower construction impact and more flexible factory upgrade
Material handling needed to remain flexible	Wire carts, rolling racks, trays, and open aisles were included in the layout	Smoother material movement and less workstation congestion
Operators needed bright and clean workstations	LED lighting and stainless steel worktables were installed inside each booth	Better visibility and cleaner work surfaces for daily operation
Supervisors needed to observe the process from outside	Transparent PVC strip curtains were used for the booth enclosure	Easier process observation without frequent booth entry

Project Result

After completion, the client received a row-type laminar flow clean booth system with 4–6 booths and a total clean booth area of approximately 140–180㎡. Each booth provides an independent local clean environment for precision inspection, component handling, clean assembly, and material staging.

The project improved local particle control around critical workstations without changing the entire factory into a full cleanroom. The top FFU and HEPA filtration system provides clean vertical airflow, while the transparent PVC softwall design keeps the clean area visible and accessible.

The final layout keeps the production area bright, open, and practical. Stainless steel worktables, rolling carts, wire shelving racks, trays, and clean storage bins support daily operation without making the workspace crowded.

Why Choose STJh Cleanroom for Laminar Flow Clean Booths?

Custom laminar flow clean booth design based on actual factory layout
Integrated aluminum frame, PVC curtains, FFU, HEPA filters, and LED lighting
Suitable for single-booth and multiple-booth row-type clean area projects
Vertical laminar airflow design for local clean workstation protection
Practical planning for stainless worktables, carts, racks, trays, and material staging
Flexible installation inside existing factories without large fixed cleanroom renovation