AKGJ-20 Small Vacuum Freeze Dryer | 0.3 m² Drying Area, 4 kg/24H Capacity, -70°C Cold Trap

Key Features

• Compact 0.3 m² freeze-drying area with 3 adjustable stainless steel trays

• Silicone oil heating system ensures uniform shelf temperature and stable heat transfer

• Up to 4 kg water capture per 24 hours for small-batch lyophilization

• Shelf temperature range: -50°C to 70°C for sensitive materials

• High-performance vacuum system reaching 2 Pa (unloaded)

• -70°C cold trap for efficient moisture capture

• Air-cooled refrigeration system for simplified installation and maintenance

• High-temperature defrost mode improves operational efficiency

• Transparent acrylic observation window allows real-time monitoring of samples

• Designed for laboratories and small-scale pilot projects, with buy small vacuum freeze dryer and small vacuum freeze dryer supplier intent

Technical Specifications

• Model: AKGJ-20

• Heating Type: Silicone Oil Heating

• Freeze-Drying Area: 0.3 m²

• Water Capture Capacity: 4 kg / 24H

• Tray Solution Volume: 3 L

• Number of Trays: 3

• Shelf Size: 265 × 395 mm

• Shelf Spacing: 50 mm

• Shelf Temperature Range: -50°C ~ 70°C

• Cold Trap Temperature: -70°C (unloaded)

• Ultimate Vacuum: 2 Pa (unloaded)

• Vial Capacity (12 mm / 16 mm / 22 mm): 1300 / 810 / 430 pcs

• Cooling Method: Air Cooling

• Defrost Mode: High-Temperature Defrost

• Vacuum Pump Capacity: 4 L/s

• Operating Temperature: 10°C ~ 35°C

• Storage / Transport Temperature: -40°C ~ 50°C

• Relative Humidity: ≤70%

• Total Power: 3.0 kW

• Main Material: 304 Stainless Steel

• Observation Window Material: Acrylic

• Overall Dimensions: 594 × 718 × 1400 mm

• Total Weight: 200 kg

Applications

Ideal for:

• Pharmaceutical and biotech laboratories

• Research institutes and universities

• Food testing and formulation labs

• Biological sample preservation

• Small-scale pilot lyophilization projects

Especially suitable for laboratories requiring precise control, repeatable results, and compact equipment size.

Compatible Equipment & Accessories

• Oil-sealed or dry vacuum pumps for stable vacuum performance

• Cold trap pre-coolers to enhance moisture capture efficiency

• Moisture analyzers to verify residual water content

• Inert gas purge systems for oxygen-sensitive materials

• Vial capping and heat sealing machines for post-drying packaging

Performance Highlight

The AKGJ-20 combines precise temperature control, strong vacuum capability, and a compact footprint, making it an excellent small vacuum freeze dryer for laboratory use. Its silicone oil heating system ensures uniform drying across all trays, supporting high-quality, repeatable freeze-drying results for sensitive samples.

Learn About the Freeze-Drying Process

The AKGJ-20 works through the freeze-drying process — freezing → vacuum → silicone oil heating → sublimation — preserving nutrients, flavor, and structure.
For more details, see Freeze drying (Wikipedia).

Frequently Asked Questions (FAQ)

Q1: What is a small vacuum freeze dryer used for?
A1: Laboratory-scale lyophilization of pharmaceuticals, biological samples, food products, and research materials requiring low-temperature dehydration while preserving structure and activity.

Q2: Is the AKGJ-20 suitable for pharmaceutical applications?
A2: Yes. It offers precise temperature control, stable vacuum performance, and materials compatible with pharmaceutical environments.

Q3: How much material can the AKGJ-20 process?
A3: Provides 0.3 m² drying area with up to 4 kg water removal per 24 hours, ideal for small-batch lab or pilot-scale freeze drying.

Q4: Where can I buy the AKGJ-20?
A4: Available from a professional manufacturer and supplier – request a quote today.

Q5: AKGJ-20 vs AKGJ-30, which is better for lab testing?
A5: AKGJ-20 is optimized for compact labs and small batch R&D, while AKGJ-30 supports larger batches and more trays for medium-scale pilot production.

Q6: Why choose silicone oil heating freeze dryer?
A6: Provides uniform temperature across all shelves, improving drying consistency and protecting sensitive samples.

Q7: What is the difference between AKGJ-20 and bench-top freeze dryers?
A7: Bench-top freeze dryers are smaller with lower capacity; AKGJ-20 is optimized for lab precision and small-scale pilot production.

Q8: How to choose a small vacuum freeze dryer for food testing?
A8: Consider drying area, water capture capacity, shelf temperature range, and vacuum performance. AKGJ-20 meets requirements for compact lab food testing.

Explore More Small Vacuum Freeze Dryers

Browse our AKGJ series for additional small-scale industrial freeze drying solutions:

• AKGJ-30 Small Vacuum Freeze Dryer

• AKGJ-50 Laboratory Freeze Dryer

• AKGJ-100 Pilot-Scale Freeze Dryer