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Single-Station Purification Glove Box

Single-Station Purification Glove Box

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The S4R Single-Station Purification Glove Box provides a continuously controlled ultra-dry, low-oxygen environment for laboratory work involving highly air- and moisture-sensitive materials.

The inert working gas is continuously circulated through a regenerable purification column, where oxygen and moisture are removed before the purified gas returns to the stainless-steel chamber. Unlike purge-only or vacuum/backfill enclosures, this closed-loop architecture maintains stable atmosphere quality throughout extended experimental workflows.

The system is specified for H₂O < 1 ppm and O₂ < 1 ppm under normal operating conditions and combines continuous atmosphere monitoring, automatic purifier regeneration, variable gas circulation and vacuum-assisted sample transfer within a complete single-station workstation.

Its 1220 × 760 × 900 mm stainless-steel working chamber incorporates two Ø220 mm glove ports with butyl gloves, a tempered-glass front window, LED illumination and HEPA filtration at the circulation inlet and outlet. Large and small evacuable antechambers allow samples, tools and components to be transferred while limiting contamination of the purified working atmosphere.

A PLC-based control system coordinates purification, circulation, atmosphere monitoring and vacuum functions. The standard single purification column can be automatically regenerated, while optional dual-column purification, solvent adsorption, dry vacuum pumping, heated transfer and refrigerated storage modules allow the platform to be adapted to demanding research workflows.

The system is particularly suited to lithium and sodium battery research, solid-state batteries, lithium-metal handling, electrolyte preparation, reactive powders, organometallic chemistry, semiconductor materials and other processes requiring stable ppm-level atmosphere control.

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Continuous Gas Purification

Single-Station Purification Glove Box

Closed-loop inert-atmosphere workstation for continuous H₂O and O₂ control below 1 ppm

The glove box provides a continuously controlled ultra-dry, low-oxygen environment for laboratory work on highly air- and moisture-sensitive materials.

The inert working gas circulates through a regenerable purification column, where oxygen and moisture are removed before the purified gas returns to the stainless-steel chamber. Unlike purge-only or vacuum/backfill enclosures, this closed loop holds the atmosphere stable throughout a long working session instead of letting it drift as gloves permeate and materials outgas.

Atmosphere specification
H₂O & O₂ < 1 ppm
Working chamber
1220 × 760 × 900 mm
Gas circulation
0–90 m³/h
Leakage rate
< 0.001 vol%/h
Product Highlights

Continuous atmosphere control for demanding laboratory research

A complete single-station platform combining closed-loop purification, continuous atmosphere analysis, automatic regeneration and vacuum sample transfer.

01

Closed-loop purification

The working gas circulates continuously through the purification column, which removes oxygen and moisture before returning the gas to the chamber.

02

Automatic regeneration

The purification media is regenerated through an automatic cycle, restoring capacity without replacing the column.

03

Electrochemical O₂ analysis

The electrochemical oxygen sensor provides trace-level measurement with low drift and reduced sensitivity to organic solvent vapours. The sensing cell is replaceable at end of life.

04

Dual vacuum antechambers

Large and small evacuable transfer chambers let samples and tools in and out without contaminating the purified atmosphere.

Purification Principle

Continuous circulation through a regenerable purification loop

The sealed circulation system removes oxygen and moisture from the inert atmosphere continuously, rather than relying on repeated purge or vacuum/backfill cycles.

01
Initial preparation

Establish the inert atmosphere

The chamber is first conditioned with high-purity nitrogen, argon or helium before the closed-loop purification is started.

02
Circulation

Recirculate the chamber gas

An oil-free variable-flow blower draws the working gas from the chamber and passes it through the sealed purification circuit, at up to 90 m³/h.

03
Purification

Remove oxygen and moisture

The regenerable column removes residual H₂O and O₂, while HEPA filtration at the gas inlet and outlet helps maintain a clean circulation path before the gas returns to the chamber.

04
Monitoring

Hold the working atmosphere

Oxygen and moisture analysers track the atmosphere continuously while the purification loop maintains the controlled environment during the experimental work.

System Architecture

Integrated chamber, purification and transfer system

The single-station configuration combines the subsystems required for continuous inert-atmosphere laboratory operation.

Working chamber

Stainless-steel enclosure

1220 × 760 × 900 mm chamber with two Ø 220 mm glove ports, butyl gloves, tempered-glass front panel and LED lighting.

Purification

Regenerable column

Single-column system with sealed circulation piping, oil-free blower and automatic regeneration. Dual-column configuration available.

Transfer

Dual antechambers

Large and small evacuable chambers, served by a rotary-vane pump through electromagnetic high-vacuum valves.

Control

PLC and display

Central control of purification, circulation, vacuum sequences and atmosphere monitoring from a single panel.

Atmosphere Control

Continuous measurement and purification

Atmosphere quality is measured directly while the purification system removes traces of oxygen and moisture as they enter or are released.

Oxygen

Electrochemical O₂ analyser

Electrochemical oxygen measurement with specified accuracy of ±0.1 ppm, low drift and reduced sensitivity to organic solvent vapours. A zirconia sensor configuration can be evaluated where required.

Moisture

Trace H₂O analyser

Low-drift moisture measurement over a 0 to 1000 ppm range with an accuracy of ±0.1 ppm.

Circulation

Oil-free blower

Variable flow from 0 to 90 m³/h through the purification loop, adjusted to the activity inside the chamber.

Analyser accuracy is not the atmosphere specification The ±0.1 ppm figures describe the specified accuracy of the analyzers, not the guaranteed concentration of the complete glove-box system. The published atmosphere specification is therefore stated separately as H₂O <1 ppm and O₂ <1 ppm under normal operating conditions.
Product Data

Technical specifications

Standard configuration of the single-station system.

Parameter Specification
S4R reference S4R-PGB-1220
Product type Single-station closed-loop purification glove box
Main chamber size 1220 × 760 × 900 mm, length × width × height
Approx. geometric volume 835 L
Chamber material Stainless steel
Front window 8 mm tempered glass; 10 mm polycarbonate available
Glove ports 2, Ø 220 mm, O-ring sealed, aluminium alloy; POM available
Gloves Butyl rubber
Lighting LED above the front window
Gas filtration HEPA filtration at gas inlet and outlet
Atmosphere specification H₂O and O₂ < 1 ppm
Leakage rate < 0.001 vol%/h, verified during final acceptance testing
Purification principle Closed-loop circulation through a regenerable H₂O and O₂ column
Purification columns Single column standard; high-efficiency dual column available
Regeneration Automatic
Circulation blower Oil-free high-speed fan
Gas circulation flow 0 to 90 m³/h
Working gas N₂, Ar or He, purity ≥ 99.999 %
Regeneration gas 5 to 10 % H₂ in the working gas
Oxygen analyser Electrochemical sensor, specified accuracy ±0.1 ppm; zirconia configuration available
Moisture analyser Trace moisture analyser, range 0 to 1000 ppm, specified accuracy ±0.1 ppm
Antechambers Large and small, both evacuable
Vacuum pump Rotary vane with oil-mist filter and pneumatic control
Vacuum pump flow 8 m³/h, 7 cfm
Pump ultimate vacuum Approximately 2 × 10⁻³ mbar
Vacuum valves Electromagnetic high-vacuum valves
Control PLC control system with display
Electrical supply AC 230 V, 50/60 Hz, 10 A; AC 115 V, 50/60 Hz, 20 A available
Typical Applications

Ultra-dry atmosphere control for batteries and advanced materials

For research where stable ppm-level oxygen and moisture control governs the outcome of sample preparation, handling or assembly.

Lithium battery research

Electrode handling, electrolyte preparation and laboratory-scale cell assembly under continuously purified inert atmosphere.

Solid-state batteries

Preparation and handling of moisture-sensitive solid electrolytes, lithium metal and related solid-state materials.

Reactive electrode materials

Controlled handling of alkali-metal and other reactive electrode materials that tolerate almost no oxygen or moisture exposure.

Organometallic synthesis

Organometallic chemistry, anaerobic synthesis and preparation of compounds that degrade on contact with air.

Electronic and photovoltaic materials

Processing and assembly of semiconductor components, solar cell devices and functional materials.

Catalysts and sensitive powders

Handling and conditioning of catalysts, reactive powders and other materials whose properties are altered by ambient air.

Standard Configuration

Complete single-station purification platform

The standard architecture integrates the principal chamber, purification, vacuum-transfer and atmosphere-control subsystems required for routine ppm-level operation.

Workspace

Main glove-box chamber

Stainless-steel enclosure with two glove ports, butyl gloves, tempered-glass front window, HEPA filtration and LED lighting.

Purification

Gas purification unit

Regenerable purification column with sealed circulation piping, variable-flow oil-free blower and automatic regeneration.

Vacuum & control

Transfer and control system

Large and small antechambers, rotary-vane vacuum pump, high-vacuum valves, oxygen and moisture analyzers and the PLC control panel.

Installation requirements and options The laboratory provides the specified working gas, regeneration gas, regulators and distribution lines. Optional solvent adsorption, dual-column purification, dry pumping, heated transfer and refrigerated storage modules can be configured according to the application.
Configuration Options

Extend the system for demanding research workflows

Optional modules are selected according to solvent load, purification capacity, temperature requirements and vacuum preference.

Organic solvent adsorption

Activated-carbon module in 3 mm SUS304, Ø 220 × 450 mm internally, which reduces solvent vapour loading on the purification media and the analysers.

Dual purification columns

High-efficiency two-column configuration for greater purification capacity and more operating flexibility during regeneration.

Dry vacuum pump

Oil-free pumping in place of the standard rotary-vane pump, for workflows where oil-based vacuum equipment is unwanted.

Heated antechamber

Heating system on the large antechamber, up to 200 °C with a specified control of ±1 °C, for drying items before transfer.

Refrigerated storage

−35 °C module in 18 L or 32 L, integrated on the side of the chamber with its own control, 304 stainless steel body and five movable shelves.

Custom configuration

Alternative chamber sizes, port arrangements and integrated equipment evaluated on request.

Regeneration uses a hydrogen-containing gas Regeneration requires a mixture of 5 to 10 % hydrogen in the working gas. Installation, gas storage, ventilation and regeneration procedures must comply with the laboratory's gas-safety rules and with the operating instructions supplied with the system. Confirm that your facility can accept a hydrogen mixture before ordering.
Choosing between the three glove-box families Purge-only acrylic boxes and evacuable stainless-steel boxes lower oxygen and moisture by displacement or by vacuum and backfill, and the atmosphere then drifts during the session. This system recirculates and purifies continuously, which is what makes ppm-level operation possible over a full working day. Select it when the protocol specifies a concentration rather than a procedure.
Solvent-containing workflows Electrolyte and organic solvent vapours shorten purification-media lifetime and can affect the analysers. The activated-carbon adsorption option is recommended for solvent-intensive battery work.
Consumables and maintenance The purification media, oxygen-sensor cell, gloves and pump oil are service items with their own maintenance intervals. Their replacement should be included in the long-term operating plan, and the gloves and sealing interfaces should be inspected regularly.

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