Engineered for microelectronics and optical sensor manufacturing: 720 high-efficiency EC Fan Filter Units (FFUs), computerized RS485 group speed control, dissipative ESD flooring, and integrated laminar flow clean workstations.
A precision optical sensor and microelectronics manufacturer required a 3,200 m² clean fabrication plant. The facility encompasses an ISO Class 5 (Class 100) photolithography and wafer inspection suite, an ISO Class 6 SMT high-speed placement hall, and ISO Class 7/8 testing and packaging areas.
Stringent Manufacturing Tolerances: The client faced critical yield challenges: sub-micron dust particles causing short circuits on high-density circuits, electrostatic discharge (ESD) risks destroying sensitive MOSFET components, and thermal-induced structural warping requiring temperature precision within ±0.5°C and relative humidity within ±3%.
BESTCLEAN Modular FFU Engineering Architecture: Rather than relying on rigid, high-energy centralized ductwork, BESTCLEAN engineered a ceiling blind-plenum system utilizing 720 intelligent EC-motor FFUs. With 90% motor efficiency, ultra-low vibration (< 0.5 mm/s), and real-time RS485 bus control, each production zone can dynamically throttle air velocity between 0.35 and 0.50 m/s to conserve energy during non-operating hours.
All photographs captured on-site during installation, FFU commissioning, and clean bench integration:
Class 5 photolithography and optical assembly cleanroom equipped with 100% ceiling coverage FFU array, yellow anti-UV lighting, and anti-static vinyl flooring.
Heavy extruded aluminum modular ceiling grid allowing rapid drop-in installation of 1175×575mm FFU units, LED tear-drop cleanroom lights, and fire sprinkler drop heads.
Stationed inside the assembly line for optical microscope wafer inspection. Delivers 0.45 m/s uniform horizontal laminar flow with H14 HEPA filtration.
Dedicated workstation with perforated SUS304 work deck, integrated ionizing de-ionizer blower bar, and zero-vibration isolated fan suspension.
Galvanized steel ductwork delivering fresh tempered make-up air (MAU) to maintain continuous positive pressure (+20 Pa) and exhaust process VOC fumes safely.
Expansive 1,400 m² clean workshop floor with 3.2m clear ceiling height, smooth rockwool sandwich wall partitions, and double-swing airtight personnel doors.
| System / Category | Delivered Specification & Equipment Model | Quantity | Technical Standard & QA Verification |
|---|---|---|---|
| Fan Filter Units (FFU) | BJ-FFU1175-EC with ultra-efficient EC motor and RS485 communication | 720 sets | 99.999% @ 0.12µm PTFE ULPA filter, vibration < 0.5 mm/s |
| Central FFU Group Controller | 7-inch touch-screen central console with Modbus/RS485 multi-zone zoning | 2 master units | Independent speed stepping 0–100%, fault alarm feedback |
| Ceiling Grid Suspension | Heavy-duty 55mm extruded aluminum cleanroom blind-plenum ceiling grid | 3,200 m² | Load capacity > 120 kg/m², earthquake resistant bracing |
| Laminar Flow Clean Benches | BJ-SW-CJ series horizontal & vertical clean benches (SUS304 tabletop) | 16 units | Class 100 internal cleanliness, built-in ionizing anti-static bar |
| Personnel Air Showers | BJ2000-D-QP SUS304 high-speed nozzle air shower with interlock doors | 6 sets | 25 m/s blast velocity, automatic infrared motion sensor start |
| Anti-Static Dissipative Floor | 2.0mm conductive PVC tiles connected to copper grounding grid | 3,200 m² | Point-to-ground resistance 10⁴ – 10⁶ Ω (ASTM F150 / IEC 61340) |
Cleanrooms operating hundreds of motors 24/7/365 run high electricity bills. BESTCLEAN's electronic cleanroom design cut ongoing operational expenditure through three engineering choices:
Share your facility footprint and cleanliness class targets. Our HVAC and FFU engineers will configure your ceiling grid layout and budget within 24 hours.