The StemAids Uni-Bloc Guardian 5000 for Tubes is a laboratory heating block accessory designed to hold test tubes securely during heating applications on compatible Guardian 5000 and Guardian 7000 hotplate stirrer systems. It is suitable for chemistry laboratories, biology laboratories, pharmaceutical labs, quality control departments, research centres, educational institutions and analytical testing laboratories.
This Uni-Bloc tube holder helps improve heat transfer between the hotplate system and test tubes by providing close block-to-tube contact. It is useful for sample warming, reagent heating, digestion support, incubation-style heating, extraction support, quality control testing and educational laboratory demonstrations.
Supplied under the StemAids brand, this Guardian 5000 compatible tube block is ideal for laboratories that need organized, repeatable and safer heating of multiple test tubes in one setup.
Important Note: This product is a tube heating block accessory only. It does not heat, stir or control temperature by itself. It must be used with a compatible Guardian 5000 / Guardian 7000 hotplate stirrer system, base plate and suitable accessories as required by the final setup.
Key Features
- Uni-Bloc tube holder for compatible Guardian 5000 and Guardian 7000 systems
- Designed for heating multiple test tubes on compatible hotplate stirrers
- Available for 12 mm, 16 mm, 20 mm and 25 mm test tubes
- Supports close block-to-tube contact for efficient heat transfer
- Helps organize multiple tubes during sample preparation and heating
- Suitable for chemistry, biology, pharmaceutical, QC and research laboratories
- Useful for educational practicals and routine laboratory workflows
- Designed for use with compatible Guardian base plate accessories
- Helps reduce direct tube contact with the hotplate surface
- StemAids brand support for institutional laboratory procurement
Product Specifications
| Specification | Details |
|---|---|
| Product Name | Uni-Bloc Guardian 5000 for Tubes |
| Brand | StemAids |
| Reference Accessory Type | Guardian Uni Block / Uni-Bloc test tube heating block accessory |
| Compatible Series | Guardian 5000 and Guardian 7000 hotplate stirrer systems, depending on final model |
| Compatible Equipment | Guardian Series aluminium plate hotplate stirrers with suitable base plate accessory |
| Primary Function | Holds test tubes for controlled heating on compatible Guardian hotplate stirrer systems |
| Heating Function | No independent heating function; heating is provided by the compatible hotplate system |
| Stirring Function | No direct stirring function; accessory only |
| Common Tube Diameter Option 1 | 12 mm test tubes |
| Common Tube Diameter Option 2 | 16 mm test tubes |
| Common Tube Diameter Option 3 | 20 mm test tubes |
| Common Tube Diameter Option 4 | 25 mm test tubes |
| Common Reference Item Number | 30500586 for 12 mm test tube Uni Block |
| Common Reference Item Number | 30500587 for 16 mm test tube Uni Block |
| Common Reference Item Number | 30500588 for 20 mm test tube Uni Block |
| Common Reference Item Number | 30500589 for 25 mm test tube Uni Block |
| Typical Slot Capacity | 12 mm: 40 slots; 16 mm: 32 slots; 20 mm: 32 slots; 25 mm: 16 slots, depending on supplied model |
| Recommended Base Accessory | Guardian base plate accessory such as 30500570, depending on final setup |
| Recommended Handling Accessory | Handles for base plate such as 30500571, depending on final setup |
| Material | Heat-conductive laboratory-grade metal block, typically aluminium or equivalent, depending on supplied model |
| Recommended Tube Type | Heat-resistant laboratory test tubes matching the selected block diameter |
| Recommended Applications | Sample heating, reagent warming, tube-based preparation, QC testing, research work and educational practicals |
| Important Note | Exact tube diameter, slot count, material, compatibility, maximum safe temperature and required accessories should be confirmed from the final supplied datasheet. |
Detailed Product Description
The StemAids Uni-Bloc Guardian 5000 for Tubes is designed to support efficient and organized heating of multiple laboratory test tubes. When placed on a compatible Guardian hotplate system using the correct base plate, the Uni-Bloc helps transfer heat to tubes through direct contact with the block wells.
Each well is designed to hold a specific tube diameter. This helps keep test tubes upright, stable and evenly positioned during heating. The block is especially useful for laboratories that process multiple small-volume samples and need better arrangement than placing individual tubes directly near a hotplate surface.
The Uni-Bloc is commonly used in analytical chemistry, pharmaceutical testing, sample preparation, biology practicals, reagent warming and quality control workflows. It can also support educational experiments where students need to observe controlled heating of tube-based samples.
The correct block must be selected according to the tube diameter. A 12 mm tube should be used with the 12 mm Uni-Bloc, a 16 mm tube with the 16 mm Uni-Bloc, and so on. Incorrect tube sizing can reduce heat transfer, affect stability or create unsafe handling conditions.
Applications
- Heating multiple test tubes on compatible Guardian hotplate stirrers
- Sample warming and reagent preparation
- Tube-based chemical testing
- Quality control laboratory workflows
- Pharmaceutical sample preparation
- Biology and chemistry practical experiments
- Research and development sample heating
- Educational demonstrations in schools and colleges
- Analytical sample conditioning
- Laboratory tube organization during heating procedures
How to Use StemAids Uni-Bloc Guardian 5000 for Tubes
- Select the correct Uni-Bloc: Choose the block according to tube diameter, such as 12 mm, 16 mm, 20 mm or 25 mm.
- Check compatibility: Confirm that the Uni-Bloc, base plate and hotplate stirrer are compatible with the Guardian 5000 or Guardian 7000 setup.
- Install the base plate: Place the required base plate on the compatible Guardian hotplate system as per the equipment manual.
- Place the Uni-Bloc: Position the Uni-Bloc securely on the base plate so it sits flat and stable.
- Prepare test tubes: Fill heat-resistant test tubes with the required sample volume, leaving enough headspace to prevent overflow.
- Insert tubes carefully: Place tubes into the matching wells without forcing them.
- Set heating: Adjust the hotplate temperature according to the sample requirement and tube safety limit.
- Monitor operation: Observe sample temperature, tube stability and heating behaviour during use.
- Use suitable tools: Use heat-resistant gloves, tube holders or handling accessories when removing hot tubes.
- Switch off after use: Turn off the hotplate system after the procedure is complete.
- Allow cooling: Let the Uni-Bloc cool completely before removing it from the base plate.
- Clean and store: Wipe the block after cooling and store it in a dry laboratory cabinet.
Safety Instructions
- Use only with compatible Guardian hotplate stirrer systems and base plate accessories.
- Select the correct Uni-Bloc size for the test tube diameter.
- Do not force oversized tubes into the block wells.
- Do not use cracked, chipped or non-heat-resistant test tubes.
- Do not overfill test tubes before heating.
- Do not touch the Uni-Bloc during or immediately after heating.
- Use heat-resistant gloves or suitable tube handling tools.
- Keep flammable materials away from hot surfaces.
- Do not exceed the safe temperature limit of the tube, sample, block or hotplate system.
- Allow the block to cool completely before cleaning or storage.
- Follow the Guardian hotplate stirrer manual for safe accessory use.
- Wear laboratory PPE such as gloves, goggles and lab coat.
Why Choose StemAids Uni-Bloc Guardian 5000 for Tubes?
| Reason | Benefit for Laboratory Users |
|---|---|
| Guardian Compatibility | Designed for compatible Guardian 5000 and Guardian 7000 hotplate stirrer setups. |
| Multiple Tube Size Options | Available for common 12 mm, 16 mm, 20 mm and 25 mm laboratory test tubes. |
| Organized Tube Heating | Holds multiple tubes upright and arranged during heating procedures. |
| Improved Heat Transfer | Close block-to-tube contact helps support efficient sample warming. |
| Laboratory Workflow Support | Useful for processing multiple tube samples in QC, research and teaching labs. |
| Educational Laboratory Use | Suitable for school, college and university practical demonstrations. |
| Cleaner Bench Operation | Reduces scattered tube handling around hotplate surfaces. |
| StemAids Brand Support | Suitable for institutional procurement and scientific laboratory accessory supply. |
SEO Keywords
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SEO Meta Title
StemAids Uni-Bloc Guardian 5000 for Tubes | Test Tube Heating Block
SEO Meta Description
StemAids Uni-Bloc Guardian 5000 for Tubes is a laboratory test tube heating block accessory for compatible Guardian 5000 and 7000 hotplate stirrer systems. Available for 12 mm, 16 mm, 20 mm and 25 mm test tubes.
Google E-E-A-T Focused Content
This product description follows Google E-E-A-T content principles by providing clear product purpose, practical usage guidance, transparent specification notes and safety instructions. The product is correctly described as a tube heating block accessory, not as a standalone heater, stirrer or temperature controller.
The StemAids Uni-Bloc Guardian 5000 for Tubes is described for science teachers, laboratory technicians, researchers, QC analysts, pharmaceutical laboratories and procurement officers who need accurate product information before purchase. The content focuses on real laboratory use cases such as tube heating, sample warming, reagent preparation, QC testing and safe accessory handling.
Frequently Asked Questions
1. What is the Uni-Bloc Guardian 5000 for Tubes used for?
It is used to hold and heat multiple test tubes on compatible Guardian 5000 and Guardian 7000 hotplate stirrer systems.
2. Does the Uni-Bloc heat by itself?
No. The Uni-Bloc is an accessory. Heating is provided by the compatible hotplate stirrer system.
3. Which tube sizes are available?
Common Uni-Bloc options are available for 12 mm, 16 mm, 20 mm and 25 mm test tubes.
4. What are the common item numbers?
Common reference item numbers are 30500586 for 12 mm, 30500587 for 16 mm, 30500588 for 20 mm and 30500589 for 25 mm test tubes.
5. How many tubes can one block hold?
Typical configurations include 40 slots for 12 mm tubes, 32 slots for 16 mm tubes, 32 slots for 20 mm tubes and 16 slots for 25 mm tubes, depending on the supplied model.
6. Is a base plate required?
Yes, a compatible Guardian base plate is commonly required for using Uni Blocks with Guardian hotplate stirrer systems.
7. Can it be used with Guardian 7000 also?
Yes. These tube Uni Blocks are commonly listed for compatible Guardian 5000 and Guardian 7000 hotplate stirrer systems.
8. Is it suitable for school and college laboratories?
Yes. It is suitable for educational laboratories when used under trained supervision with compatible heating equipment.
9. What safety precautions should be followed?
Users should match the correct tube size, avoid overfilling tubes, use heat-resistant test tubes, wear PPE and allow the block to cool before handling.
10. Why choose StemAids Uni-Bloc Guardian 5000 for Tubes?
It supports organized tube heating, Guardian 5000 compatible use, multiple tube-size options and practical applications in educational, research, pharmaceutical and QC laboratories.
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