Laminar Flow and Containment Equipment

Open Restricted Access Barrier System

A rigid open RABS that limits direct operator access to an aseptic line through transparent panels, glove ports and controlled HEPA-filtered downflow.

Rigid Operator Separation
HEPA-Filtered Critical Downflow
Glove-Assisted Interventions
Open RABS Cleanroom Interface

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Product Introduction

An open RABS surrounds the critical filling or handling zone with rigid transparent panels and glove-access doors while remaining dependent on the background cleanroom. Filtered unidirectional air protects open product locations, and operators perform routine interventions through fixed gloves instead of opening the barrier. The enclosure is not gas-tight and does not use a sealed pressure shell; planned door openings, setup and cleaning follow the surrounding cleanroom procedure.

Key Features

Rigid glazed panels reduce direct operator contact with the critical line.

Glove ports support planned interventions without opening access doors.

HEPA-filtered downflow maintains first air over open containers and closures.

Hinged barrier doors provide controlled setup and maintenance access.

The modular frame integrates around existing filling equipment and conveyors.

Customer Product Concerns

An open RABS reduces operator intervention but still relies on the surrounding cleanroom and disciplined door-opening control.

Operators reach directly over open sterile containers.Glove ports position routine interventions outside the open product path.

Barrier panels obstruct machine controls and jam points.Door, glove and control locations are mapped to actual intervention positions.

Users treat an open RABS like a sealed isolator.The open-system dependency on the background cleanroom is stated in operation and layout guidance.

Panel joints create ledges beside the conveyor.Flush framed glazing and sealed lower skirts reduce exposed horizontal edges.

Typical Applications

Aseptic vial fillingOpen-container transferStopper feeding protectionSterile component handling in cleanrooms

Technical Parameters

Typical configurable construction ranges for an open restricted access barrier system are listed below.

Core Material	SUS304 or SUS316L modular frame with laminated safety-glass panels and CSM glove assemblies
Panel Thickness	30-60 mm framed barrier and lower-skirt sections
Effective Width	1500-5000 mm protected line width
Maximum Length	Up to 20000 mm modular barrier length
Steel Facing Thickness	1.2-2.0 mm stainless lower skirts and service panels
Core Density	Approximately 2500 kg/m³ for laminated safety-glass barrier panels
Thermal Conductivity	0.8-1.0 W/(m·K) for laminated safety glass
Surface Finish	Fine-brushed stainless frame with flush clear laminated glazing
Joint Type	Bolted modular barrier frame with gasketed glazing, hinged glove doors and sealed machine skirts
Customization	Available based on the intended application and operating environment.

Available Options

Active overhead HEPA supplyFixed or hinged glove panelsMachine and conveyor cut-outsEnvironmental monitoring ports

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