LGJ-18S gland type freeze-drying machine electric heating defrosting programmable

LGJ-18S gland type freeze-drying machine electric heating defrosting programmableDetailed introduction:

LGJ-18S (Electric Heating) Capped Vacuum Freeze Drying Machine is a small vertical freeze drying equipment with shelf heating and programmable functions, suitable for laboratory use or small-scale production, and can meet the requirements of most laboratory routine freeze drying. The starting temperature of the vacuum pump can be preset. When it is lower than the set temperature, the vacuum pump can be started effectively to prevent a large amount of water vapor from entering the pump; Extend the service life of vacuum pumps. The intelligent data recording system automatically saves freeze-drying data, continuously records real-time data to generate tables, and can be viewed in the form of real-time curves and historical curves, making the entire freeze-drying process clear and concise. Vacuum freeze dryers are applied in fields such as life sciences, biopharmaceuticals, biological products, and university research laboratories. They can freeze dry proteins, peptides, colloidal gold, biological products, enzyme products, solutions, solid materials, etc. After freeze-drying, the sample can maintain its original biological characteristics, retain its activity without loss, and can be stored for a long time, making it convenient for transportation. The freeze-dried material can be stored for a long time, maintaining a stable biochemical structure and activity. It can quickly recover to its original state after adding water and has good rehydration properties.

The capping type freeze dryer is mainly used for freeze-drying liquid in penicillin bottles. Firstly, the liquid is filled into the penicillin bottle, and the rubber stopper of the penicillin bottle is covered (moisture sublimates through the gap of the rubber stopper and condenses into frost in the cold trap). It is then placed in the drying chamber of the freeze dryer and freeze-dried according to the preset freeze-drying process. After freeze-drying is completed, the rubber stopper is compressed into the penicillin bottle under vacuum using a plug pressing device to form a freeze-dried powder injection, which is equivalent to vacuum packaging and can avoid secondary pollution caused by contact with air.

LGJ-18S gland type freeze-drying machine electric heating defrosting programmableFeatures:

1. Integrated structural design, small size, no external flanges, easy to use, and no leakage.

2. All materials in contact with the product are made of inert materials that meet GLP requirements.

3. The cold trap and operating table are made of stainless steel material, which is corrosion-resistant and easy to clean.

4. The all stainless steel inflatable (drain) valve is safe, corrosion-resistant, and leak free.

5. The cold trap has a large opening, no inner coil, and comes with sample pre freezing function, without the need for a low-temperature refrigerator.

6. Using gas diversion technology, the cold trap captures ice evenly and has strong ice capturing ability.

7. Adopting imported brand compressors, with high refrigeration efficiency, long service life, and low noise.

8. Equipped with a vacuum pump as standard, it has a high pumping speed and can quickly achieve the maximum vacuum degree.

9. Vacuum pump protection function, which can set the starting cold trap temperature of the vacuum pump to protect its service life.

10.7-inch true color industrial embedded touch screen+SH-HPSC-II modular controller, high control accuracy, stable and reliable performance.

11 adopts FD-EMB control system, which can save hundreds of process formulas, each containing 50 temperature control sections, improving process optimization rate.

12. Intelligent data recording system, real-time recording and display of cold trap temperature curve, sample temperature curve, vacuum degree curve, exporting data can be browsed, printed and operated through a computer.

13. Plate heating safety voltage (36V) temperature control system, which can control the heating rate.

14. Flexible manual and automatic control methods, manual exploration of processes, and automatic batch production.

15. Real time alarm display and historical alarm query function, convenient for fault diagnosis and equipment maintenance.

16. User level and password can be set, and operation management can be decentralized.

17. Equipped with sensor calibration function to ensure the accuracy of long-term measurement values.

18. The intelligent AI electric defrosting SH-10KCQ adopts safe voltage and multi-dimensional fuzzy control technology to improve defrosting efficiency.

Technical parameters of LGJ-18S (electric heating) gland type freeze dryer:

Freeze dried area: 0.09 square meters

Partition temperature range: -40 ℃~+60 ℃

Material tray size: 200mm

Quantity of material trays: 3 pieces

Material tray spacing: 70mm

Cold trap temperature: ≤ -60 ℃ (no load), optional ≤ -85 ℃ (no load), -110 ℃ (no load)

Cold trap depth: 400mm

Cold trap diameter: Ø 270mm

捕水能力： 6kg/24h

Extraction rate: 4L/S

Ultimate vacuum degree: ≤ 1Pa (no load)

Installed power: 1800W

Host weight: 105kg

Host dimensions: 630 × 580 × 970mm

-85 ℃ host external dimensions: 810 × 580 × 950mm

Drying room size: Ø 300 × 485mm

Cooling method: air cooling

Defrosting mode: Natural defrosting

Plate mounted material: 0.9L (material thickness 10mm)

Bottled volume of penicillin:

Penicillin bottle with a diameter of 12mm: 615 bottles

Penicillin bottle with a diameter of 16mm: 345 bottles

Penicillin bottle Ø 22mm: 183 bottles

The main applications of LGJ-18S (electric heating) gland type freeze dryer are:

Effectively suppressing the biological, chemical, or physical changes of thermosensitive substances, and effectively preserving the active substances in the raw materials, as well as maintaining the color of the raw materials.

Not only suitable for freeze-drying bulk (liquid, paste, solid) conventional substances, but also for drying penicillin bottled materials. Mainly used for freeze-drying liquid in penicillin bottles, the liquid is first filled into the penicillin bottle, and the stopper of the penicillin bottle is covered (moisture sublimates through the gap of the stopper and condenses into frost in the cold trap). It is then placed in the drying chamber of the freeze-drying machine and freeze-dried according to the preset freeze-drying process. After freeze-drying is completed, the stopper is pressed into the penicillin bottle under vacuum using a stopper pressing device to form freeze-dried powder injection, which is equivalent to vacuum packaging and can avoid secondary pollution caused by contact with air.

Basic freeze-drying process of capping type freeze dryer:

1. Fill the material into a penicillin bottle and cover it with a rubber stopper. Do not press it tightly, and keep the gap to facilitate the sublimation of moisture;

2. Pre freezing of penicillin bottle materials: Pre freezing in a cold trap or a low-temperature refrigerator to ensure that all liquid water inside the material is frozen into ice crystals (if bubbles are found on the surface of the material after vacuuming, it indicates that it has not been fully frozen and must be refrozen);

3. Turn on the vacuum pump to sublimate the water: Place the pre frozen penicillin bottle on the rack, turn on the vacuum pump, observe the rate of vacuum degree decrease, and ensure that the vacuum degree reaches below 20pa. If it cannot be reached, check the sealing of the connection between the freeze-drying hood and the host, as well as at the interfaces of various pipelines;

4. Freeze drying completed: After confirming that the material has been successfully freeze-dried, press the penicillin bottle stopper tightly with the capping handle, vacuum package it, and open the release valve to balance the internal and external pressures, then turn off the vacuum pump;

5. Cold trap defrosting: After the moisture sublimates, it will condense into frost in the cold trap. After natural melting, it will flow out through the drain valve, and the remaining moisture will be wiped clean to keep the tabletop and cold trap dry.