Down-adjustment HEPA Box

Structural diagram 1:		Gel seal design: Air filters used with gel seal HEPA box have gel seal grooves around the frame. In the installation process, the gel seal groove is nested with the knife edge around the box to form airtight seal. Besides, the gel seal groove will not stick to the knife edge around the box during the filter replacement process.
Structural diagram 2:		Butterfly valve adjustment device: The butterfly valve regulating device located at the bottom of the box is connected to the butterfly air valve by a metal wire rod. This device can be rotated directly from the bottom to control the butterfly valve, making it simple and easy to control the amount of air entering the room through the metal wire rod.
Structural diagram 3 :		Butterfly air valve: The air inlet at the top of the box is equipped with a butterfly air valve and controlled by a rotating valve adjustment device at the lower side of the box to adjust the air volume entering the cleanroom.

Introduction

The TKSAGE Down-adjustment HEPA Box is a modular air filtration unit engineered for flexible cleanroom air purification. Its unique vertical adjustment mechanism allows precise positioning of HEPA filters (±150mm height) to optimize airflow distribution in variable-height clean zones. Designed for Class 100 to Class 10000 environments, it integrates pre-filtration, HEPA filtration, and optional carbon adsorption to remove particles, odors, and volatile organic compounds (VOCs).

Scenario-Based Solutions

Flexible Electronics Assembly Lines

Electronics manufacturers with reconfigurable production lines use this HEPA box to adapt to changing workcell heights. When repositioning SMT machines, the filter height adjusts to maintain uniform airflow over new equipment layouts, avoiding costly cleanroom redesigns.

Pharmaceutical Packaging Rooms

In blister packaging areas, dust accumulation on packaging materials causes seal failures. The down-adjustable HEPA box mounts above conveyor lines, with height-adjusted filters delivering targeted airflow to keep blister films particle-free—reducing packaging defects by 25%.

Temporary Clean Zones

During equipment maintenance in Class 1000 cleanrooms, this portable HEPA box creates temporary clean zones. Its casters enable easy relocation, while the adjustable height ensures coverage over maintenance workbenches, preventing contaminants from spreading to active production areas.

Product Features

Vertical Adjustment Mechanism: Manual crank system adjusts filter height by ±150mm; locking lever secures position for stable airflow.

Dual-Filtration System: G4 pre-filter (captures ≥5μm particles) extends HEPA life by 50%; H14 HEPA filters achieve 99.995% 0.3μm filtration.

Modular Design: Stackable units for large-area coverage; compatible with TKSAGE FFUs for integrated cleanroom solutions.

Durable Construction: Galvanized steel housing with electrostatic spray finish; weather-resistant design for both indoor/outdoor temporary use.

Technical Support & Services

Custom Configuration: Adjust filter size (610×610mm to 1220×610mm), add carbon filters for VOC removal, or integrate EC fans.

On-Site Calibration: Technicians test airflow uniformity post-installation and after height adjustments.

Maintenance Services: Filter replacement reminders; 24-hour delivery of genuine TKSAGE filters.

Technical Consultation: 24/7 support for airflow optimization and cleanroom layout integration.

FAQ

Q1: What’s the maximum airflow rate?

A: Up to 1200 m³/h per unit; multiple units can be synchronized for larger clean zones.

Q2: Is it compatible with existing cleanroom systems?

A: Yes, it connects to central HVAC or operates as a standalone unit with built-in fans.

Q3: How much weight can the adjustment mechanism support?

A: The crank system handles up to 50kg, sufficient for H14 HEPA filters and fan modules.