Heat Seal & Hot tack Tester Machines
Ensure Seal Integrity with Unmatched Heat Seal & Hot tack Property Testing!
Heat seals are commonly used in flexible packaging to ensure an airtight seal, keeping products fresh and protected from contamination. The process adheres to ASTM F2029, which outlines standard practices for creating heat seals to determine the heatsealability of flexible webs based on seal strength measurements. The Hot Tack Tester is designed for evaluating hot tack and heat seal performance in plastic films, laminated films, and other packaging materials. Additionally, it is used for peel tests, tensile break tests, and other assessments involving adhesives, adhesive tapes, laminated films, plastic films, paper, and various flexible materials.
Heat Seal Tester C630H
The heat sealing properties of materials, including factors like melting point, thermal stability, fluidity, and thickness, vary significantly. The C630H Heat Seal Tester is designed to identify the best heat sealing parameters—such as dwell time, sealing pressure, and sealing temperature—for a range of materials like plastic films, flexible composite films, plastic-coated paper, and other heat-sealable films. It is an integral part of any flexible packaging Lab to determine Production parameters on the pouching machine.
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Features
- Versatility: Capable of determining optimal heat sealing parameters for various materials, including plastic films, flexible composite films, plastic-coated paper, and other heat-sealable films.
- Precision Control: Allows adjustment of dwell time, sealing pressure, and sealing temperature for precise testing conditions. 5 Station Rapid Heat Seal Test
- Comprehensive Analysis: Measures factors like melting point, thermal stability, fluidity, and thickness, influencing heat sealing properties.
- Efficiency: Streamlines quality control processes by identifying optimal heat sealing parameters quickly and accurately.
- Individual Temperature Zones for Each Station !
- Professional software supports remote operation for convenient data saving, exporting and printing.
Hot Tack Tester C632M
The C632M Hot Tack Tester is used to measure the hot tack and heat seal strength of packaging materials such as films and laminates. This test evaluates the ability of a material to form a Rapid Seal when heat and pressure are applied, and then the strength of that seal while it is still hot.Heat seals are frequently used in flexible packaging, particularly for ensuring an airtight seal for products that need to stay fresh and free from contamination.
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Features
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Constant Pressure & Automated Feeding:
- Precision pressure control within 0.005MPa.
- Program-set pressure, no manual adjustments.
- Automated sample feeding ensures accuracy.
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Safety & Clamping:
- Protective cover prevents injuries.
- Preload fixtures simplify clamping.
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Intelligent Control & Reliability:
- 7" touch panel for easy use.
- Stable performance with AC servo system.
- Durable components with low failure rates.
- Self-detection for overheating and limits.
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Test Standard
- GB/T 34445, ASTM F1921
FAQ's
Frequently Asked Questions (FAQs) – Heat Seal & Hot tack Tester Machines
What is a Heat Seal Tester Machine?
A Heat Seal Tester Machine is laboratory equipment used to determine the heat seal strength, sealing temperature range, pressure settings, and dwell time of flexible packaging materials. It helps manufacturers optimize sealing parameters to ensure strong, leak-proof seals in pouches, sachets, and laminated films.
The Labthink Heat Seal Tester C630H is widely used for accurate heat sealability testing in packaging quality control laboratories.
What is a Hot Tack Tester Machine?
A Hot Tack Tester Machine measures the seal strength immediately after sealing while the material is still hot. This test simulates real packaging line conditions, especially in high-speed form-fill-seal operations.
The Hot Tack Tester C632M evaluates hot tack strength and sealing performance under dynamic production conditions, ensuring seals do not fail during filling or transport.
What is the difference between Heat Seal Testing and Hot Tack Testing?
| Parameter | Heat Seal Tester (C630H) | Hot Tack Tester (C632M) |
|---|---|---|
| Test Purpose | Determines optimal sealing parameters | Measures seal strength while hot |
| Timing | After seal cools | Immediately after sealing |
| Application | Sealability study | Production line simulation |
| Standard | ASTM F2029 | ASTM F1921 |
The Heat Seal Tester C630H is ideal for seal parameter optimization, while the C632M ensures real-time seal integrity in high-speed packaging.
Why is Hot Tack Strength Important in Packaging?
Hot tack strength ensures that a package remains sealed immediately after sealing, before cooling occurs. This is critical in:
Vertical Form Fill Seal (VFFS) machines
Food packaging
Liquid and powder pouches
High-speed automated packaging lines
Poor hot tack strength can lead to seal failure, product leakage, and customer complaints.
Which Testing Standards Do These Machines Follow?
The Labthink models supplied by Flexitest comply with international standards:
ASTM F1921 – Hot Tack Strength Testing
ASTM F2029 – Heat Sealability Testing
GB/T 34445
Other international flexible packaging standards
These standards ensure global acceptance of test results.
What Materials Can Be Tested?
Both C630H and C632M machines are suitable for testing:
PE, PP, BOPP, CPP films
Laminated films
Multilayer flexible packaging
Plastic-coated paper
Pharmaceutical and food packaging films
They are ideal for R&D labs, quality control departments, and packaging converters.
What Parameters Can Be Controlled in the Heat Seal & Hot Tack Testers?
The machines allow precise control of:
Sealing Temperature
Sealing Pressure
Dwell Time
Cooling Time (for heat seal testing)
Tensile Force Measurement
This helps packaging engineers optimize sealing windows and improve product safety
What Industries Use Heat Seal & Hot Tack Testing Equipment?
These testing instruments are widely used in:
Food & Beverage Packaging
Pharmaceutical Packaging
FMCG Packaging
Flexible Packaging Manufacturing
Research & Development Laboratories
Flexitest supplies these advanced Labthink machines across India with installation and technical support.
Why Choose Labthink Heat Seal & Hot Tack Tester Machines?
High precision temperature control
✔ Digital microprocessor-based system
✔ Repeatable and accurate results
✔ International standard compliance
✔ Advanced data logging and reporting
✔ Trusted global brand in packaging testing
Flexitest is an authorized supplier of Labthink testing instruments in India.
Can These Machines Help Improve Packaging Quality?
Yes. By using Heat Seal Tester C630H and Hot Tack Tester C632M, manufacturers can:
Reduce seal failure rates
Optimize sealing temperature range
Improve packaging line efficiency
Minimize product rejection
Ensure regulatory compliance
