HD-L2 Automatic Bacterial Plater
Automatic Bacterial Spreader consists of a rotatable platform for holding Petri dishes and a sterile spreader (spreading rod). It is a next-generation product designed specifically for the bacterial spreading and inoculation steps—as well as spreading for antimicrobial susceptibility testing—found in “classic culture-based” microbiological experiments.
Request a QuoteProduct Introduction
The HD-L2 Automatic Bacterial Spreader is designed for uniform spreading of bacterial suspension or sample liquid on agar culture plates in microbiology laboratories.
The instrument is suitable for 85–90 mm plastic and glass Petri dishes. By combining a rotating platform with a stainless steel spreader or disposable sterile plastic spreader, the HD-L2 helps create a smooth and even microbial liquid film on the culture medium surface.
Compared with manual plate spreading, the HD-L2 improves spreading consistency, reduces operator workload, and helps laboratories standardize bacterial culture preparation. It is suitable for environmental testing, biological industry, agriculture, animal husbandry, pharmaceutical and biopharmaceutical laboratories, research institutions, and comprehensive microbiology laboratories.
Working Principle
The HD-L2 uses a rotating platform to assist bacterial spreading.
During operation, the Petri dish is placed on the rotating platform, and an appropriate amount of sample liquid is added to the center of the culture plate. The platform rotates to help the sample liquid spread outward from the center. Then, the spreader works together with the rotating platform to form a flat and uniform microbial liquid film on the surface of the culture medium.
The rotation speed can be adjusted continuously between 100–400 rpm/min, allowing users to select suitable spreading conditions according to sample type, liquid volume, and plate requirements.
Main Applications
The HD-L2 Automatic Bacterial Spreader is suitable for routine microbial plate preparation and bacterial spreading workflows.
Typical applications include:
- Bacterial suspension spreading
- Microbial sample plate preparation
- Food microbiology testing
- Pharmaceutical microbiology testing
- Environmental microbiology testing
- Agricultural microbiology testing
- Animal husbandry microbiology testing
- Biological research laboratories
- Teaching and research laboratories
- Third-party testing laboratories
- Quality control laboratories
It can be used in workflows that require even distribution of microbial suspension on agar plates before incubation and colony counting.
Technical Specifications
| Item | Specification |
|---|---|
| Product Name | Automatic Bacterial Spreader |
| Model | HD-L2 |
| Main Function | Automatic spreading of bacterial suspension or sample liquid on culture plates |
| Suitable Plate Size | 85–90 mm diameter Petri dishes |
| Compatible Plate Material | Plastic and glass culture dishes |
| Start Mode | Button switch or infrared sensing start |
| Working Method | Rotating platform with spreader-assisted uniform liquid spreading |
| Spreader Options | Stainless steel spreader or disposable sterile plastic spreader |
| Instrument Material | Metal alloy |
| Leak-Proof Design | Prevents liquid from entering the rotating platform |
| Eccentricity | Less than 0.1% |
| Speed Control | Stepless speed regulation |
| Rotation Speed | 100–400 rpm/min |
| Price Range | RMB 10,000–50,000, depending on configuration |
| Origin Category | China-made |
| Application Fields | Environmental testing, biological industry, agriculture, forestry, animal husbandry, fishery, pharmaceutical and biopharmaceutical, comprehensive laboratories |
| Standard Configuration | Main unit, 1 stainless steel spreader, 1 power cord |
System Features
Suitable for Standard Petri Dishes
The instrument is suitable for 85–90 mm diameter culture plates, including common plastic and glass Petri dishes used in microbiology laboratories.
Dual Start Modes
The HD-L2 can be started by a button switch or by infrared sensing. This provides flexible operation options for different laboratory workflows.
Uniform Spreading Performance
The rotating platform helps distribute the sample liquid from the center of the plate toward the edge. With the spreader, the instrument produces a smooth and even microbial liquid film.
Stepless Speed Regulation
The rotation speed can be adjusted between 100–400 rpm/min. Users can select a suitable speed according to sample viscosity, spreading volume, and culture medium surface condition.
Low Eccentricity Design
The eccentricity is less than 0.1%. The improved turntable fixing structure and assembly process help reduce vibration and improve spreading stability.
Metal Alloy Body
The instrument is made of metal alloy, making it durable and convenient for disinfection and routine laboratory cleaning.
Leak-Proof Structure
The leak-proof design prevents liquid from entering the inside of the rotating platform, improving safety and extending instrument service life.
Flexible Spreader Options
The system can be used with a stainless steel spreader or disposable sterile plastic spreader. Laboratories can choose the suitable option according to their cleaning, sterilization, and contamination control requirements.
Core Components
The HD-L2 Automatic Bacterial Spreader mainly includes the main unit, rotating platform, start control system, speed control system, spreader, and power supply.
Main Unit
The main unit provides structural support, motor drive, speed control, and operation control for the spreading process.
Rotating Platform
The rotating platform holds the Petri dish and rotates at the selected speed to help distribute the sample liquid evenly.
Start Control System
The instrument supports both button start and infrared sensing start, allowing users to select the preferred operation method.
Speed Control System
The stepless speed control system allows smooth adjustment between 100 and 400 rpm/min.
Spreader
The spreader works with the rotating platform to create a uniform liquid film. The system can be used with stainless steel or disposable sterile plastic spreaders.
Operation Workflow
A typical HD-L2 operation workflow includes:
- Place an 85–90 mm Petri dish on the rotating platform
- Add the required amount of sample liquid to the center of the culture plate
- Select the suitable rotation speed
- Start the instrument by button or infrared sensing
- Allow the rotating platform to spread the sample liquid outward
- Use the spreader with the rotating platform to create a uniform liquid film
- Stop the instrument after spreading is complete
- Transfer the plate for incubation or further testing
- Clean or replace the spreader according to laboratory procedure
This workflow helps standardize plate spreading and improves repeatability compared with manual operation.
Applicable Laboratories and Institutions
The HD-L2 is suitable for:
- Microbiology laboratories
- Food safety testing laboratories
- Pharmaceutical microbiology laboratories
- Biopharmaceutical quality control laboratories
- Environmental testing laboratories
- Agricultural testing laboratories
- Animal husbandry testing institutions
- Research institutes
- Universities and teaching laboratories
- Third-party testing laboratories
- Industrial quality control laboratories
Product Advantages
Simple and Practical Operation
The instrument is easy to use and supports both button start and infrared sensing start, making it suitable for routine laboratory workflows.
Uniform Plate Spreading
The rotating platform and spreader work together to produce a smooth and even microbial liquid film.
Adjustable Speed
Stepless speed regulation from 100 to 400 rpm/min allows users to adapt the spreading process to different samples and plates.
Stable Turntable Performance
The low eccentricity design helps improve rotation stability and spreading consistency.
Suitable for Glass and Plastic Plates
The instrument is compatible with common 85–90 mm plastic and glass Petri dishes.
Easy to Clean and Disinfect
The metal alloy body is convenient for cleaning and disinfection in microbiology laboratories.
Reduced Contamination Risk
The leak-proof design helps prevent liquid from entering the turntable interior, reducing cleaning difficulty and improving instrument safety.
Flexible Spreader Selection
Users can select a reusable stainless steel spreader or disposable sterile plastic spreader according to the laboratory’s contamination control requirements.
Installation Requirements
The HD-L2 should be placed on a stable laboratory bench in a clean, dry, and well-ventilated environment. The instrument should be kept away from strong vibration, corrosive gases, excessive dust, and direct splashing liquids.
Before use, the laboratory should prepare suitable Petri dishes, sample liquid, spreaders, and cleaning or sterilization tools. A stable power supply should be available according to the instrument configuration.
Maintenance Requirements
Routine maintenance includes cleaning the rotating platform, checking the spreader, confirming smooth rotation, inspecting the leak-proof structure, and cleaning the metal alloy surface after use.
If a stainless steel spreader is used, it should be cleaned and sterilized according to laboratory procedures. If disposable sterile plastic spreaders are used, they should be discarded according to laboratory waste management requirements.
Operators should regularly check the rotation stability and speed adjustment function to ensure reliable spreading performance.
Packaging and Export
The HD-L2 can be packed with protective materials to ensure safe transportation of the main unit, stainless steel spreader, power cord, and operating documents.
For export projects, product configuration guidance, technical documents, operation instructions, installation support, and after-sales service can be provided according to customer requirements.
Customization Service
The instrument configuration can be adjusted according to laboratory workflow and user requirements.
Customization options may include:
- Spreader type selection
- Plate preparation workflow support
- Speed range confirmation
- Application-specific operation guidance
- Packaging and export documentation support
- Laboratory use configuration suggestions
Product appearance, structure, performance, and technical parameters may change due to continuous product upgrades. Final specifications should be confirmed according to the latest product information.
Related Equipment and Applications
The HD-L2 can be used as part of a complete microbiology sample preparation and culture workflow. Related equipment and applications include:
- Automatic bacterial spreader
- Microbial plate spreader
- Bacterial suspension spreading system
- Agar plate spreader
- Microbiology sample preparation equipment
- Plate preparation instrument
- Colony culture preparation system
- Food microbiology testing equipment
- Pharmaceutical microbiology testing equipment
- Environmental microbiology testing equipment
- Laboratory microbial culture preparation system
FAQ
1. What is the HD-L2 used for?
The HD-L2 is used for automatically spreading bacterial suspension or sample liquid evenly on agar culture plates.
2. What plate size is suitable for this instrument?
It is suitable for 85–90 mm diameter Petri dishes.
3. Can it be used with both plastic and glass Petri dishes?
Yes. The instrument is compatible with plastic and glass culture dishes.
4. How does the instrument start?
It can be started by a button switch or by infrared sensing.
5. What spreaders can be used?
The system can be used with a stainless steel spreader or disposable sterile plastic spreader.
6. What is the adjustable rotation speed range?
The rotation speed can be adjusted continuously from 100 to 400 rpm/min.
7. What is the eccentricity of the turntable?
The eccentricity is less than 0.1%, helping improve rotation stability.
8. Does the instrument have a leak-proof design?
Yes. The leak-proof design helps prevent liquid from entering the rotating platform.
9. What is included in the standard configuration?
The standard configuration includes one main unit, one stainless steel spreader, and one power cord.
10. What industries is this product suitable for?
It is suitable for environmental testing, biological industry, agriculture, animal husbandry, pharmaceutical and biopharmaceutical laboratories, research, and comprehensive microbiology laboratories.