Vacuum Drying Cabinet
(a)10 series
Lab Scales Desktop(Freeze-dried material 1.5-2KG)
(b)12 series
Lab Scales Vertical(Freeze-dried material 2KG)
(c)18 series
Scientific Research Scales(Freeze-dried material 3KG)
2.Pilot Freeze Dryer:
0.2m²/0.3m²/0.5m²/1m²/2m²/---Pilot Scales(Freeze-dried material 3KG-20KG)
3.Customization: set up the specifications you need
(a)Freeze-dried Area
(b)Freeze-dried Weight
(c)Freeze-dried Material
(d)Interlayer Quantity/Size
(e)Cold Trap Temperature
Description
Technical Parameters
A vacuum drying cabinet is designed specifically for drying heat sensitive, easily decomposable, and oxidizable substances. It can inject inert gas into the interior, especially for items with complex components that can be quickly dried. During work, the studio can maintain a certain degree of vacuo and be filled with inert gas, especially for complex items that can be quickly dried. An intelligent digital temperature regulator is used for temperature setting, display, and control. For an older drying device, the box is divided into several layers by heating plates. Hot water or low-pressure steam is introduced into the heating plate as the heating medium. The tray containing the medicine to be dried is placed on the heating plate, the box door is closed, and a vacuo pump is used to create a vacuo inside the box. The heating plate heats the medicine to the specified temperature through the circulating flow of the heating medium, and the moisture begins to evaporate and gradually be evacuated with the vacuo. This device is easy to control and can condense and recover evaporated solvents. During the drying process, drugs are not easily contaminated and can be used for drug drying, packaging sterilization, and heat treatment.
Product Structure & Model
vacuum drying cabinets are suitable for industrial and mining enterprises, medical colleges, and research institutions to conduct drying, heating, and other experiments on items under vacuo conditions.
1. Box structure:
The design of the test chamber is perfect, and the box body is processed and formed by CNC machine tools. The door of the chamber is open and easy to operate.
The inner chamber of the test box is made of SUS304 stainless steel plate, and the outer shell is treated with A3 plate spray coating, which is more smooth and beautiful.
The circuit system side adopts a gate opening, which is convenient for maintenance and inspection.
The tightness of the box door can be adjusted, and the silicone rubber door seal ring formed as a whole ensures high vacuo inside the product.
Storage, heating, testing, and drying are all carried out in environments without oxygen or filled with inert gases, so they will not oxidize.
2. Control system:
The temperature controller adopts touch buttons, digital LED display, and PID intelligent control instrument; Pt100 platinum resistance temperature sensor; 3. Technical parameters:
Vacuum degree:<133pa
Temperature range: RT+10 ℃~250 ℃
Temperature resolution: ± 0.1 ℃
Constant temperature fluctuation: ± 2.5 ℃
Power supply: 220V, 50HZ
Product Parameter
Vacuum Drying Oven
| NO. | AC31-1 | AC31-2 | AC31-3 | AC31-4 | AC31-5 | AC31-6 |
| Model | DZF-6010 | DZF-6020 | DZF-6050 | DZF-6090 | DZF-6210 | DZF-6500 |
| Power Supply (V/Hz) | 220/50 | |||||
| Shell Material | Spray-paint Anti-corrosion | |||||
| Liner Material | SS304 | |||||
| Temp. Range (°C) | RT+10~200 | |||||
| Vacuum Degree (Mpa) | 0.098 | |||||
| Temp. Stability (°C) | ±1.0 | |||||
| Temp. Accuracy (°C) | 0.1 | |||||
| Working Temp. (°C) | +5~40 | |||||
| Input Power (W) | 500 | 800 | 1500 | 2000 | 4000 | 4000 |
| Chamber Capacity (L) | 8 | 25 | 55 | 90 | 215 | 430 |
| Shelves (Pcs) | 1 | 2 | 3 | 4 | ||
| Time Range (Min) | 1~9999 | |||||
| Optional Configuration | LED observe light, Color customization, Five-sides heating, Cold trap or Vacuum tower, Anti-reflux flask. | |||||
Compared to conventional drying techniques, it has the following advantages:
1
The vacuum drying cabinet environment greatly reduces the boiling point of the liquid that needs to be expelled, so vacuo drying can be easily applied to thermosensitive substances;
2
For samples that are not easily dried, such as powders or other granular samples, vacuo drying can effectively shorten the drying time;
3
Various complex mechanical components or other porous samples are cleaned and dried using vacuo drying method, leaving no residual substances after complete drying;
4
Safer to use - completely eliminate the possibility of oxide explosion when exposed to heat under vacuo or inert conditions;
5
Compared with ordinary drying relying on air circulation, powdered samples will not be blown or moved by flowing air;
6
Control features: It has parameter memory and call recovery function to protect against data loss due to power outages and crashes.
Performance characteristics:
1
Adopting the domestically pioneering streamlined circular arc design, the shell is made of cold-rolled steel plate, and the surface is electrostatically sprayed with plastic;
2
The temperature control system of this machine adopts microcomputer microcontroller technology for temperature control, timing, and over temperature alarm;
3
The display is a dual screen high brightness digital tube display, with accurate and intuitive readings, superior performance, and touch sensitive button settings for adjusting parameters;
4
The temperature control sensor uses imported capacitive components;
5
Adopting imported motors and blades; Equipped with timing and timer functions;
6
The inner lining is made of stainless steel material; The semi-circular corners are easy to clean;
7
The door of this chassis is fully adjustable by the user, and the silicone rubber door seal ring formed as a whole ensures high vacuo inside the box;
8
The workshop of this machine is a rectangular structure, which maximizes the effective volume. The box door adopts tempered and bulletproof double-layer glass doors, making it easy for users to observe the cultivation items in the workshop at a glance.
Products Characteristic
In terms of cyclic heating performance, the selection of fans is crucial, mainly including domestic and imported fans.
Attachment selection: Generally, drying ovens do not have a time controller unless requested by the customer. In other words, the drying time can only be manually controlled. If it is necessary to add a time controller, it can be selected.
Intelligent temperature regulators have over temperature protection function. If the temperature inside the working room exceeds the set temperature value during the operation of the equipment, the over temperature protection circuit will activate and cut off the heating circuit.
The electric vacuum drying oven can maintain a certain degree of vacuo in the working room and use an intelligent digital temperature regulator for temperature setting, display, and control. This temperature regulator uses computer technology to collect and process temperature signals in the studio, which can automatically maintain a constant temperature in the studio. This temperature control system belongs to P I. D intelligent temperature control, reliable performance, and easy to use.
Product Features
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1. The reason for the difference between the instrument reading of the vacuo drying oven and the reading of the glass rod thermometer in the vacuo chamber is:
The general electric vacuo drying oven adopts the method of heating the vacuo chamber wall first, and then radiating heating from the wall to the workpiece. In this way, the temperature sensor of the temperature control instrument can be arranged on the outer wall of the vacuo chamber. Sensors can simultaneously receive convection, conduction, and radiation heat. The glass rod thermometer in the vacuo chamber can only accept radiant heat, and because the blackness of the glass rod cannot reach 1, a considerable part of the radiant heat is refracted. Therefore, the temperature value reflected by the glass rod thermometer is definitely lower than the temperature reading of the instrument. Generally speaking, it is normal for the temperature reading of the instrument to differ from the reading of the glass rod thermometer by less than 30 ℃ under the working condition of 200 ℃. If the temperature sensor of the temperature control instrument is arranged in the vacuo chamber, the difference between the temperature value of the glass rod thermometer and the temperature reading of the instrument can be appropriately reduced, but it cannot be eliminated, and the sealing reliability of the vacuo chamber increases a potentially unreliable link. If you don't want to see this difference from a practical operational perspective, you can use the unique display correction function of the temperature control instrument to solve it.
2. The reason for first vacuuming and then heating up the vacuum drying cabinet
1)
The purpose of placing the workpiece in a vacuo box for vacuuming is to remove any gas components that can be extracted from the material of the workpiece. If the workpiece is heated first, the gas will expand when exposed to heat. Due to the excellent sealing of the vacuo box, the enormous pressure generated by the expanding gas may cause the tempered glass of the observation window to burst. This is a potential danger. By following the procedure of vacuuming first and then heating up, this danger can be avoided.
2)
If the procedure of heating up first and then vacuuming is followed, when the heated air is pumped out by the vacuo pump, the heat will inevitably be carried to the vacuo pump, resulting in a high temperature rise of the vacuo pump and a possible decrease in its efficiency.
3)
The heated gas is directed towards the vacuo pressure gauge, which will generate a temperature rise. If the temperature rise exceeds the specified operating temperature range of the vacuo pressure gauge, it may cause indication errors in the vacuo pressure gauge.
The correct usage method should first evacuate and then heat up. When the rated temperature is reached and the vacuo degree is found to have decreased, add some more suction appropriately. This is beneficial for extending the service life of the equipmen
Cleaning and disinfection guidelines
Cleaning steps
Internal cleaning
Controls:
Turn off the power and remove the tray and material rack when the device is cool.
Use a dry clean cloth or special vacuum cleaner to remove the residue (such as powder, particles) inside the chamber.
If the residue is stubborn, it can be gently wiped with a slightly damp soft cloth (dipped in a small amount of neutral detergent), and then dried with a dry cloth.
Key areas:
Seal ring, observation window, tray bracket, temperature sensor around.
External cleaning
Controls:
Wipe the housing and control panel with a slightly damp soft cloth to remove dust and stains.
Avoid water droplets entering gaps in the control panel.
Vacuum pump maintenance
Check vacuum pump oil:
Observe whether the oil level is in the normal range and whether the oil is emulsified or blackened.
If you need to replace it, follow the manufacturer's instructions (replace it after 50 hours of first use, and replace it every 300 hours after that).
Disinfection method
Application scenario
General disinfection
Suitable for general materials after drying (such as food, medicine, biological samples, etc.).
Deep disinfection
Suitable for high-risk scenarios (such as infectious disease samples, experiments with high sterility requirements).
Disinfection method
|
Disinfection method |
Application scenario |
Operation procedure |
|
75% alcohol wipe |
Common scene |
Wipe the chamber, tray and control panel with a soft cloth dampened with 75% alcohol and air dry. |
|
Hydrogen peroxide disinfection |
High risk scenario |
Configure 3% hydrogen peroxide solution, spray or wipe the inside of the chamber, and wipe it clean with water after 30 minutes. |
|
Ultraviolet exposure |
Periodic preventive disinfection |
Close the cabinet door, turn on the UV lamp (if any), and shine for 30-60 minutes. |
Matters needing attention
Cleaning time
Cleaning should be carried out immediately after drying to avoid residue solidification.
Component protection
When cleaning the tray, avoid using sharp tools to scratch the surface coating.
Remove and clean the vacuum pump air inlet filter separately to prevent clogging.
Disinfection safety
When using chemical disinfectants, wear gloves and goggles to avoid direct contact.
After disinfection, ventilate the equipment for more than 10 minutes before using it.
Record archiving
Record the time, method and responsible person of cleaning and disinfection for easy traceability.
Frequently Asked Questions
Banned! Water may enter the circuit and cause a short circuit. Use a dry cloth or vacuum cleaner.
Wipe the device with clean water or ventilate it to ensure that there is no residue.
Check the seal ring regularly, and replace it immediately if it is aging or deformed to prevent air leakage.
Sum up
Cleaning is the foundation, disinfection is the guarantee, both indispensable.
Follow the principle of "clean before disinfect" to avoid cross contamination.
Regular maintenance (such as deep cleaning once every 3 months) to ensure long-term stable operation of the equipment.
Through standard cleaning and disinfection, the failure rate of vacuum drying cabinet can be effectively reduced, the safety of operators and materials can be guaranteed, and the service life of equipment can be extended.
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