Hefei Kejing VGB-2 Transparent Acrylic Glove Box
| Brand | Hefei Kejing |
|---|---|
| Origin | Anhui, China |
| Model | VGB-2 |
| Acrylic Thickness | 6 mm |
| Side Door Diameter | 400 mm |
| Antechamber Dimensions | 240 mm × 240 mm (Door Opening: Ø230 mm) |
| Glove Port Diameter | 150 mm |
| Vacuum Gauges | Dual Analog Vacuum Gauges (Chamber & Antechamber) |
| Vacuum Isolation Valves | Separate Manual Shut-off Valves for Chamber and Antechamber |
| Antechamber Ultimate Vacuum | ≤0.1 mbar |
| Chamber Atmosphere | Inert Gas Purged (N₂ or Ar), No Vacuum Capability Due to Acrylic Structural Limitations |
| Net Weight | 21 kg |
| External Dimensions | 1000 mm (L) × 500 mm (W) × 500 mm (H) |
| Packaging Dimensions | 1524 mm × 864 mm × 711 mm (60" × 34" × 28") |
Overview
The Hefei Kejing VGB-2 Transparent Acrylic Glove Box is a benchtop inert-atmosphere workstation engineered for routine handling of air- and moisture-sensitive materials under controlled nitrogen or argon environments. Unlike stainless-steel glove boxes designed for high-vacuum operation, the VGB-2 utilizes 6 mm thick optical-grade acrylic panels to provide full 360° visual access to internal processes—enabling real-time observation of synthesis, electrode fabrication, and nanomaterial handling without compromising atmospheric integrity. Its structural design prioritizes accessibility and ease of maintenance: smooth acrylic surfaces resist chemical adhesion, facilitate rapid wipe-downs with ethanol or isopropanol, and eliminate crevices where particulates or residues may accumulate. The system operates as a positive-pressure, gas-purged enclosure—relying on continuous inert gas flow and manual valve-controlled antechamber cycling to maintain O₂ and H₂O levels below 100 ppm after proper conditioning. It is not rated for vacuum operation in the main chamber due to inherent mechanical limitations of acrylic under negative pressure; however, the dedicated antechamber supports evacuation to ≤0.1 mbar for safe sample transfer.
Key Features
- Benchtop footprint (1000 × 500 × 500 mm) optimized for space-constrained laboratories and fume hood integration
- Optically transparent 6 mm acrylic construction enabling unobstructed process monitoring from all angles
- Dual analog vacuum gauges—separately mounted on antechamber and main chamber—for independent pressure verification during transfer cycles
- Manually operated isolation valves on both antechamber and main chamber to isolate sections during maintenance or gas purging
- Large Ø400 mm side access port and Ø230 mm antechamber door for efficient loading of substrates, coin-cell tooling, or small reactors
- Standard Ø150 mm glove ports fitted with butyl rubber gloves (replaceable per ISO 3745 compliance) offering tactile sensitivity and chemical resistance to common battery electrolytes and solvents
- Gas inlet/outlet ports equipped with standard 1/4″ NPT fittings compatible with mass flow controllers and gas purification systems
Sample Compatibility & Compliance
The VGB-2 accommodates a broad range of research-scale samples including lithium-ion battery cathode/anode powders (e.g., NMC, LFP, Si/C composites), quantum dot precursors, organometallic catalysts, and oxygen-sensitive thin-film deposition substrates. Its acrylic enclosure meets UL 94 HB flammability rating and complies with general laboratory safety requirements for non-pressurized enclosures (per ANSI Z9.14 and EN 14157). While not certified for GLP/GMP production environments, the unit supports documentation-ready workflows when paired with external loggers for gas purity tracking and cycle timestamps. Antechamber transfer protocols align with ASTM D6984-22 guidelines for inert-atmosphere material handling in electrochemical research.
Software & Data Management
The VGB-2 is a manually operated, valve-and-gauge-based system with no embedded microcontroller or digital interface. All operational parameters—including antechamber evacuation time, purge duration, and final O₂/H₂O residual levels—are recorded externally using handheld analyzers (e.g., MBRAUN Labmaster Trace or Pfeiffer Vacuum MultiGauge). Users are advised to maintain standardized log sheets compliant with ISO/IEC 17025 documentation practices. For regulated environments requiring audit trails, integration with third-party environmental monitoring systems (via analog 4–20 mA outputs from optional add-on sensors) enables timestamped data archiving in LIMS or ELN platforms supporting 21 CFR Part 11-compliant electronic signatures.
Applications
- Electrode slurry preparation and coin-cell assembly for Li-ion, Na-ion, and solid-state battery R&D
- Handling of pyrophoric reagents (e.g., alkyl lithium compounds) and moisture-sensitive catalysts (e.g., Grignard reagents, Ziegler–Natta systems)
- Nanoparticle synthesis and post-synthesis passivation under inert atmosphere
- Characterization sample mounting for XRD, SEM, and XPS—minimizing ambient exposure between synthesis and analysis
- Calibration standard storage and handling for trace moisture/oxygen analyzers
FAQ
Can the main chamber be evacuated to vacuum?
No. The acrylic construction is not structurally rated for vacuum service. Only the antechamber supports evacuation to ≤0.1 mbar.
What inert gases are compatible with the VGB-2?
Nitrogen (N₂) and argon (Ar) are fully supported. Helium may be used but requires higher flow rates due to increased permeation through seals.
Are replacement gloves and O-rings available as spare parts?
Yes. Butyl rubber gloves (Ø150 mm) and silicone O-rings for all access ports are stocked by Hefei Kejing and distributed globally via authorized technical support partners.
Does the unit include gas purification?
No. Gas purification (e.g., O₂/H₂O scrubbers) must be integrated externally upstream of the gas inlet.
Is CE or UL certification provided?
The VGB-2 carries CE marking per EMC Directive 2014/30/EU and Low Voltage Directive 2014/35/EU. UL listing is not applicable as the unit contains no powered components.
