Specifications

Below are standard specifications for plastic desiccators. Items marked Customizable are available upon request.

Size	Top Material	Base Material	Top Height (mm)	Base Height (mm)	Total Height (mm)	Plate Dia. (mm)	Seal Type
150mm	PC	PP	115	84	198	139	O-Ring
200mm	PC	PP	140	112	250	187	O-Ring
250mm	PC	PP	173	138	310	230	O-Ring
300mm	PC	PP	212	179	390	287	O-Ring

Dimensions are typical values and may vary slightly by batch. Perforated plate design facilitates easy access.

📌 Customization Notes:
• Custom sizes available (150mm~300mm)
• Single or dual stopcock configuration
• Vacuum gauge option available
• Inert gas purge function available
• Custom material options available

Product Description

I. Overview

The plastic desiccator is a sealed container for vacuum drying, vacuum storage, and moisture-proof preservation of laboratory items. Manufactured from high-clarity polycarbonate (PC) top and polypropylene (PP) base, offering high strength, excellent transparency, lightweight, and impact resistance.

Available in 150mm, 200mm, 250mm, and 300mm sizes. Equipped with a PP perforated plate and silicone O-ring seal for vacuum or non-vacuum use. Threaded ports on the top and base allow installation of stopcocks and vacuum gauges.

Compared to glass desiccators, plastic desiccators are shatterproof and safer to use, with high transparency for easy observation. Suitable for vacuum drying and storage of biochemical reagents, pharmaceuticals, optical lenses, precision components, seeds, cultural relics, and more.

🔬 Product Advantages:
High-Clarity PC — Easy observation of contents
Silicone O-Ring Seal — Grease-free, reliable sealing
Long Vacuum Retention — Minimal pressure change after evacuation
Stackable Design — Top guard ring for easy handling and stacking

II. Core Performance Parameters

Top Material: High-clarity polycarbonate (PC)
Base Material: Polypropylene (PP), white
Plate Material: PP perforated plate for easy access
Seal Type: Silicone O-ring, grease-free
Size Range: 150mm / 200mm / 250mm / 300mm
Temperature Range: -40℃ ~ 120℃
Vacuum Level: Maintains 740 mmHg+ vacuum
Vacuum Retention: Holds vacuum for 24 hours at room temperature
Ports: Threaded ports on top and base for stopcock/vacuum gauge

III. Material & Workmanship

The top is injection-molded from high-quality polycarbonate (PC), offering high clarity, strength, and impact resistance. The base and plate are made of polypropylene (PP) with a white base for easy content observation.

The top and bottom sections are sealed with a silicone O-ring — no grease required, reliable sealing performance. The top guard ring design facilitates handling and stable stacking.

Every batch undergoes rigorous dimensional and seal testing to ensure consistent quality.

Applications

Typical Applications

Vacuum Drying

Biochemical reagents, pharmaceuticals, samples — fast and safe

Vacuum Storage

Optical lenses, precision components, seeds, cultural relics

Inert Gas Vacuum Storage

Purge with nitrogen or inert gas before evacuation to prevent oxidation

Moisture-Proof Storage

Non-vacuum storage with desiccants (e.g., indicating silica gel)

Degassing

Removing bubbles from viscous materials like epoxy resin and liquid silicone

Vacuum Leak Testing

Leak detection with a vacuum pump

Industries

Teaching Labs Chemistry and biology education
Pharmaceutical QC labs, R&D labs
Food Industry Food testing, quality control
Environmental Monitoring Sample preparation, dry storage
Research Institutions Analytical and materials laboratories

Selection Guide

I. By Size

Application	Recommended Size	Plate Dia.	Typical Contents
Small samples, valuable reagents	150mm	139mm	Small reagent vials, optical components
Routine laboratory use	200mm	187mm	Routine reagents, pharmaceuticals, samples
Medium batch samples	250mm	230mm	Bulk reagents, media, seeds
Large capacity bulk drying	300mm	287mm	Large samples, oversized components

II. By Configuration

Non-Vacuum Desiccator: Sealed lid for routine moisture-proof storage, no vacuum required
Vacuum Desiccator: Equipped with stopcock and vacuum port for vacuum drying and storage
Dual-Valve Desiccator: Two stopcocks enable inert gas purge function

💡 Selection Tip: 250mm vacuum desiccator is the most commonly used size in laboratories.
For vacuum drying or storage, choose a vacuum desiccator with stopcock.
For inert gas protection, choose a dual-valve desiccator.
For routine moisture-proof storage, a non-vacuum desiccator is sufficient.

Operation & Maintenance

User Guide

Below are standard operating guidelines for plastic desiccators. Proper use ensures drying effectiveness and product longevity.

I. Pre-use Preparation

Inspect for cracks, deformation, and seal integrity
Rinse with distilled or deionized water and air dry
Place the silicone O-ring in the base groove
For desiccant use (e.g., indicating silica gel), spread evenly below the plate

II. Non-Vacuum Use

Place items on the PP perforated plate
Position the O-ring in the base groove
Place the PC top over the base, ensuring the seal contacts the top edge
For sealed storage, gently press the top to ensure tight contact with the seal

III. Vacuum Use

Place items on the PP perforated plate
Position the O-ring in the base groove and place the PC top
Connect vacuum tubing to the stopcock quick-connect fitting
Open the vacuum source — press the top down during initial evacuation
Once vacuum stabilizes, close the stopcock and disconnect the tubing
To introduce inert gas, use the second stopcock port

IV. Cleaning & Maintenance

Clean promptly after use and air dry
Stubborn residues: use mild neutral detergent, rinse with distilled water
Never use hard brushes or abrasives on the inner wall
Inspect the O-ring regularly and replace ifageing
Store in a dry, cool place away from direct sunlight

💡 From a Seasoned Lab Technician: "The seal is critical — inspect carefully" — Always check the O-ring for damage and proper positioning before each use.
"Press the top during evacuation" — Press the top down when starting evacuation, release once vacuum stabilizes.
"Replace desiccant regularly" — Replace or regenerate indicating silica gel when color changes.
"Monitor vacuum with a gauge" — A vacuum gauge allows real-time monitoring of vacuum status.

Care & Notes

Show care & notes

⚠️ Safety & Compliance Checklist

Safety

Wear protective gloves and safety goggles during vacuum operations

Temperature Range

PC/PP can be used from -40℃ to 120℃

Chemical Compatibility

PC/PP have limited tolerance to strong organic solvents — verify before use

Do not

Vacuum Safety: Monitor vacuum level to avoid excessive evacuation causing deformation

Plastic Desiccator

Specifications

Product Description

I. Overview

II. Core Performance Parameters

III. Material & Workmanship

Applications

Vacuum Drying

Vacuum Storage

Inert Gas Vacuum Storage

Moisture-Proof Storage

Degassing

Vacuum Leak Testing

Selection Guide

I. By Size

II. By Configuration

User Guide

I. Pre-use Preparation

II. Non-Vacuum Use

III. Vacuum Use

IV. Cleaning & Maintenance

Care & Notes

Safety

Temperature Range

Chemical Compatibility

Need Plastic Desiccators?

Plastic Desiccator

Specifications

Product Description

I. Overview

II. Core Performance Parameters

III. Material & Workmanship

Applications

Vacuum Drying

Vacuum Storage

Inert Gas Vacuum Storage

Moisture-Proof Storage

Degassing

Vacuum Leak Testing

Selection Guide

I. By Size

II. By Configuration

User Guide

I. Pre-use Preparation

II. Non-Vacuum Use

III. Vacuum Use

IV. Cleaning & Maintenance

Care & Notes

Safety

Temperature Range

Chemical Compatibility

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