Description
Product Overview
The YUCHENGTECH 300mm vacuum desiccator jar is engineered for demanding laboratory environments where reliable vacuum preservation and controlled drying are essential. Crafted from high‑quality polycarbonate using precision injection molding, the jar offers exceptional durability, chemical resistance, and optical clarity, allowing users to monitor sample conditions without opening the container. The double‑needle valve system provides independent pathways for vacuum extraction and inert gas introduction, enabling seamless transition between vacuum and inert atmospheres. A built‑in pressure gauge gives real‑time feedback on internal pressure, ensuring that the desired vacuum level is maintained throughout the drying cycle. The jar’s robust construction tolerates a wide temperature range from –40 °C to 120 °C, making it suitable for both cryogenic and high‑temperature applications.
![[Product front view showing all components]](https://www.anchorhub.store/wp-content/uploads/2026/07/bcf7b4953ee64858b13004eb1880e64f.jpg)
Usage
This desiccator is ideal for a variety of laboratory and research applications, including moisture‑sensitive material storage, catalyst drying, polymer conditioning, and sample preservation under inert gas environments. Researchers can place solid, liquid, or powdered samples inside the jar, then evacuate the air using the primary needle valve while optionally back‑filling with nitrogen or argon through the secondary valve to create an inert atmosphere. The design supports continuous operation in glove boxes, fume hoods, and temperature‑controlled ovens, providing flexibility for processes such as solvent removal, moisture adsorption, and thermal annealing. Its compact 300 mm diameter footprint fits comfortably on standard lab benches without sacrificing internal volume, allowing efficient use of limited workspace.
Why Choose Us
Choosing the YUCHENGTECH vacuum desiccator means investing in a product that combines engineering precision with user‑centric design. The polycarbonate body is rigorously tested for impact resistance and long‑term vacuum integrity, ensuring that vacuum loss remains under 6 % after 30 days of continuous operation. The quick‑change joint connecting the needle valves to the jar rotates 360 degrees, simplifying valve replacement and reducing downtime. Each unit undergoes a comprehensive quality inspection, including leak testing and pressure gauge calibration, to guarantee consistent performance across batches. Additionally, YUCHENGTECH offers responsive technical support and a clear warranty policy, providing peace of mind for laboratories that demand reliability and after‑sales service.
Key Features
- High‑quality polycarbonate construction ensures chemical resistance and visual monitoring of samples.
- Dual needle valves allow simultaneous vacuum evacuation and inert gas introduction for versatile atmosphere control.
- Integrated pressure gauge provides real‑time monitoring of internal vacuum levels.
- Operates reliably across a temperature range of –40 °C to 120 °C, covering most laboratory drying needs.
- Comprehensive technical support and warranty for reliable after‑sales service.
FAQ
What types of samples can be placed inside the desiccator?
The jar accommodates solid, liquid, and powdered samples. Its chemical‑resistant polycarbonate material is compatible with most solvents and reagents, making it suitable for a wide range of laboratory materials.
How often do I need to check the vacuum level?
While the jar maintains vacuum with less than 6 % loss over 30 days, it is recommended to verify the pressure gauge reading at least once a week for critical applications.
Can I use gases other than nitrogen for inert atmosphere?
Yes, the secondary needle valve can be connected to any inert gas source such as argon or helium, provided the gas supply is filtered and dry.
Is the desiccator compatible with standard laboratory ovens?
Absolutely. The jar’s temperature tolerance up to 120 °C allows safe placement in most laboratory ovens and drying chambers.
What maintenance is required to ensure long‑term performance?
Periodically inspect the needle valve seals for wear, clean the interior with a mild solvent if contamination occurs, and store the jar in a dry environment when not in use.





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