Static Pass Box

LENGE Static Pass Box is a reliable auxiliary transfer device designed for cleanrooms, enabling safe passage of materials between areas of the same cleanliness level without compromising air quality or increasing contamination risk. It features a simple, effective two-door interlocking system to prevent simultaneous opening and cross-contamination.

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Standard Size And Parameter:

Model Outer Size Inner Size UV Lamp
/ W×D×H W×D×H (W)
LTW-040040 620×460×640 400×400×400 6*2
LTW-050050 720×560×740 500×500×500 8*2
LTW-060060 820×660×840 600×600×600 8*2
LTW-060080 820×660×1040 600×600×800 8*2
LTW-070070 920×760×940 700×700×700 15*2
LTW-080080 1020×860×1040 800×800×800 20*2
LTW-100100 1220×1060×1240 1000×1000×1000 20*2

Key Features & Benefits

A01

Two-Door Interlocking System

Plate electromagnetic interlock ensures reliable, fail-safe operation: only one door opens at a time, reducing cross-contamination risk.

A02

Embedded Door Design

Smooth, flush operating surface with no protrusions for easy use and minimal particle accumulation.

A03

Easy-to-Clean Construction

Integrated circular arc (coved) design in the working area eliminates dead corners, simplifying cleaning and supporting GMP compliance.

A04

UV Sterilization

Built-in UV lamps (dual, varying wattage by model) provide additional surface decontamination during transfer.

A05

Flexible Installation

Supports floor-mounted or wall-mounted setups to fit your facility layout.

A06

Customizable

Fully tailored to your URS (User Requirements Specification): sizes, configurations, materials, and optional features.

FAQs for Better Results

01

What is a Static Pass Box?

A Static Pass Box is a simple, passive transfer device used in cleanrooms to safely move materials between areas of the same cleanliness level. It features two interlocked doors to prevent simultaneous opening, ensuring no direct air exchange or contamination risk between zones.

02

How does a Static Pass Box differ from a Dynamic Pass Box?

A Static Pass Box has no blower or active airflow — it relies on mechanical/electronic interlocks for safe transfer in equal-cleanliness areas. A Dynamic Pass Box adds unidirectional HEPA-filtered air to actively purge particles, making it suitable for transfers between different cleanliness classes or higher-risk applications.

03

How does the interlocking system work?

The plate electromagnetic interlock (or electronic equivalent) is fail-safe and maintenance-free: it allows only one door to open at a time. This prevents cross-contamination by eliminating the possibility of both doors being open simultaneously, in full compliance with GMP requirements.

04

What design features make it easy to clean and GMP-compliant?

Fully welded stainless steel construction with seamless interiors, rounded coved corners (circular arc design), and no protrusions or dead corners. The embedded door design creates a smooth operating surface that minimizes particle accumulation and simplifies cleaning/validation.

05

Is UV sterilization included?

Yes — each unit includes built-in dual UV lamps (wattage varies by model, e.g., 6×2 W to 20×2 W) for surface decontamination during transfer cycles.

06

Can Static Pass Boxes be customized?

Yes — all units are built to your URS (User Requirements Specification). We customize dimensions, configurations, materials (SUS304/316L), mounting options (floor or wall), door types, and additional features to match your exact facility and process needs.

07

What installation options are available?

Static Pass Boxes support both floor-mounted and wall-mounted installations, giving flexibility to fit your cleanroom layout without disrupting workflows.

08

What applications are Static Pass Boxes best suited for?

Ideal for pharmaceutical manufacturing, API handling, microelectronics, scientific labs, and microbiological research — anywhere materials need to move between equivalent cleanliness zones (e.g., same Grade D areas) with minimal risk and simple, reliable transfer.