
Blood Bag Tube Sealer
Automated heat sealing instrument for 4mm plastic tubing used in blood collection and sample storage applications, featuring programmable sealing times and aluminum alloy construction.
| Automation Level | semi-automated |
| Power/Voltage | AC220V, 50Hz |
| Output Voltage | Automatic voltage regulation |
| Sealing Type | Automatic heat sealing |
| Sealing Time | 0.1~9.9 seconds |
| Tube Size | Plastic pipe with an outer diameter of 4mm and a wall thickness of ≤1mm |
The Blood Bag Tube Sealer is a precision laboratory instrument designed for automated sealing of plastic tubing used in blood collection and storage applications. This benchtop unit employs controlled heat sealing technology to create secure, airtight seals on plastic tubes with outer diameters of 4mm and wall thickness ≤1mm. The instrument features automatic voltage regulation and programmable sealing times from 0.1 to 9.9 seconds, enabling consistent seal quality across different tube materials and applications.
Constructed with an aluminum alloy housing, the unit provides reliable performance in clinical and research environments requiring sterile sample processing. The compact footprint (300×200×160mm) makes it suitable for integration into existing laboratory workflows while maintaining the precision necessary for critical sample preservation protocols.
How It Works
The Blood Bag Tube Sealer operates through controlled thermal fusion of thermoplastic tubing materials. When activated, the instrument applies precise heat at the sealing point, causing the plastic tube walls to soften and fuse together under controlled pressure. The automatic voltage regulation ensures consistent temperature delivery regardless of line voltage fluctuations, while the programmable timer (0.1-9.9 seconds) allows optimization of sealing parameters for different tube materials and wall thicknesses.
The sealing mechanism creates a hermetic bond by raising the plastic temperature above its glass transition point, enabling molecular chain movement and interdiffusion across the tube walls. Upon cooling, the fused material forms a permanent seal that maintains sample integrity and prevents contamination. The aluminum alloy construction provides thermal stability and even heat distribution during the sealing process.
Features & Benefits
Automation Level
- semi-automated
Power/Voltage
- AC220V, 50Hz
Output Voltage
- Automatic voltage regulation
Sealing Type
- Automatic heat sealing
Sealing Time
- 0.1~9.9 seconds
Tube Size
- Plastic pipe with an outer diameter of 4mm and a wall thickness of ≤1mm
External Size(L*W*H)(mm)
- 300*200*160mm
Packing Size(L*W*H)(mm)
- 470*320*260mm
Net Weight(kg)
- 8kg
Gross Weight(kg)
- 9kg
Brand
- ConductScience
Research Domain
- Cardiovascular
- Cell Biology
- Clinical Diagnostics
- Immunology
- Microbiology
- Pharmaceutical QC
Material
- Aluminium alloy
Weight
- 8.0 kg
Dimensions
- L: 16.0 mm
- W: 30.0 mm
- H: 20.0 mm
Comparison Guide
| Feature | This Product | Typical Alternative | Advantage |
|---|---|---|---|
| Sealing Time Control | Programmable 0.1-9.9 seconds with digital precision | Basic models often provide fixed timing or crude adjustment | Enables optimization for different tube materials and ensures consistent results across applications. |
| Voltage Regulation | Automatic voltage regulation maintains consistent performance | Entry-level units may lack voltage compensation | Provides reliable sealing quality despite laboratory power fluctuations. |
| Construction Material | Aluminum alloy housing for thermal stability | Basic models often use plastic housings | Ensures even heat distribution and long-term durability in laboratory environments. |
| Tube Compatibility | Designed for 4mm diameter tubes with ≤1mm wall thickness | Some units have limited size compatibility | Specifically optimized for standard blood collection and sample storage tubing. |
This sealer provides precise timing control and automatic voltage regulation in a compact, thermally stable design. The aluminum construction and programmable features offer laboratory-grade reliability for consistent sample sealing applications.
Practical Tips
Establish sealing time parameters using test tubes before processing actual samples.
Why: Different tube materials may require different heating times for optimal seal formation.
Clean sealing surfaces regularly with laboratory-grade disinfectants to prevent contamination buildup.
Why: Residue accumulation can affect heat transfer and seal quality.
Allow sealed tubes to cool completely before handling or transport.
Why: Hot plastic remains soft and seals may be compromised if disturbed during cooling.
If seals appear incomplete, increase sealing time incrementally rather than applying additional manual pressure.
Why: The automated mechanism provides optimal pressure - extending time allows better thermal fusion.
Verify seal integrity by visual inspection and gentle tension testing before sample storage.
Why: Proper seals should show clear fusion zones without air bubbles or incomplete bonding.
Ensure adequate ventilation around the unit during operation to disperse any minor plastic vapors.
Why: Heat sealing thermoplastics may produce minimal emissions during the fusion process.
Setup Guide
What’s in the Box
- Blood Bag Tube Sealer main unit
- Power cord (typical)
- User manual and technical documentation (typical)
- Sealing time calibration guide (typical)
Warranty
ConductScience provides a standard one-year manufacturer warranty covering defects in materials and workmanship, with technical support for calibration and operational guidance.
Compliance
What tube materials are compatible with this sealing method?
The unit is designed for thermoplastic tubes with 4mm outer diameter and ≤1mm wall thickness. Optimal results depend on the specific plastic formulation's thermal properties - consult product datasheet for material compatibility.
How do I determine the appropriate sealing time for my tubes?
Start with shorter times (0.1-0.5 seconds) and increase incrementally while testing seal integrity. Proper sealing creates a clear fusion zone without tube deformation or burning.
Can the unit handle different wall thicknesses within the ≤1mm range?
Yes, the programmable timer allows adjustment for different wall thicknesses. Thicker walls typically require longer sealing times for complete fusion.
What maintenance is required for consistent performance?
Regular cleaning of the sealing surfaces and periodic verification of sealing time accuracy. The aluminum construction facilitates easy cleaning with standard laboratory disinfectants.
How does the automatic voltage regulation affect performance?
It maintains consistent sealing temperature despite power line fluctuations, ensuring reproducible seal quality across different laboratory electrical conditions.
Is the sealing process reversible or can sealed tubes be reopened?
Heat sealing creates permanent fusion of the plastic material. Sealed tubes cannot be reopened without cutting, making this suitable for final sample preservation rather than temporary closure.
Have a question about this product?
Accessories
Enhance your setup with compatible accessories



