Jeiotech VDC-31U Cubic UV Vacuum Desiccator – 35 L with Integrated Vacuum Gauge

The Jeiotech VDC-31U combines vacuum drying capability with UV protection in a larger-capacity cubic chamber. With an internal volume of 35 liters, it supports multi-level storage while protecting light-sensitive compounds from photodegradation.

The chamber is manufactured from UV-blocking polycarbonate, reducing UV exposure during storage and vacuum drying. Vacuum performance is maintained down to 1 Torr (1.33 × 10⁻⁴ MPa) for more than 72 hours at room temperature.

UV-Blocking Polycarbonate for Photosensitive Samples

Unlike clear VDC models, the VDC-31U uses UV-resistant polycarbonate that:

• Reduces UV light transmission

• Protects photosensitive chemicals and pharmaceuticals

• Minimizes degradation from laboratory lighting

• Maintains mechanical strength and vacuum integrity

This makes it especially suitable for laboratories working with compounds sensitive to UV radiation.

Cubic Geometry for Maximum Storage Efficiency

The cubic design provides:

• Three perforated shelves standard (expandable to five)

• Optimized vertical sample organization

• Higher usable volume compared to round desiccators

• Stackable construction for efficient laboratory space use

• Front-opening transparent door for convenient access

Compared to round vacuum desiccators, the cubic VDC-31U offers superior space efficiency and multi-level storage capability.

Integrated Vacuum Monitoring and Airtight Construction

All VDC models include an integrated vacuum gauge as standard.

The VDC-31U features:

• Built-in vacuum gauge (0 to −0.1 MPa)

• Viton® 3-way stopcock valve for vacuum formation and gas substitution

• Pore plug for safe pressure equalization

• Silicone gasket for greaseless airtight sealing

• One-piece molded polycarbonate body minimizing leakage

These features ensure stable vacuum performance and long-term durability.

Typical Applications

The VDC-31U is ideal for:

• Storage of light-sensitive pharmaceutical compounds

• Protection of UV-reactive analytical standards

• Moisture- and light-sensitive chemical materials

• Degassing procedures requiring UV shielding

• Multi-tray vacuum drying of reactive substances

Its 35 L capacity supports medium-to-high throughput laboratory workflows.