QKTester HSPT-01 Laboratory Heat Sealing Tester
| Brand | QKTester |
|---|---|
| Origin | Shandong, China |
| Manufacturer Type | Direct Manufacturer |
| Model | HSPT-01 |
| Temperature Range | Ambient to 300 °C |
| Temperature Control Accuracy | ±0.2 °C |
| Sealing Time | 0.1–999.9 s |
| Sealing Pressure | 0.05–0.7 MPa |
| Sealing Jaw Dimensions | 150 mm × 10 mm (customizable) |
| Heating Mode | Single- or Dual-Side Heating |
| Power Supply | 220 VAC 50 Hz / 120 VAC 60 Hz |
| Compliant Standards | QB/T 2358, ASTM F2029, YBB 00122003 |
Overview
The QKTester HSPT-01 Laboratory Heat Sealing Tester is a precision-engineered instrument designed for controlled thermal sealing evaluation of flexible packaging materials. It operates on the principle of contact heat sealing—applying precisely regulated temperature, pressure, and dwell time to replicate industrial sealing conditions in a laboratory environment. The device enables quantitative assessment of seal integrity through standardized thermal compression, supporting method development, process validation, and quality assurance across regulated packaging workflows. Its architecture integrates thermodynamic stability with mechanical repeatability, making it suitable for routine testing in R&D labs, QC departments, and regulatory submission support activities.
Key Features
- Microprocessor-based control system with real-time parameter monitoring and programmable test sequences
- Large backlit LCD display for simultaneous visualization of setpoints and actual values (temperature, pressure, time)
- Dual-cylinder synchronized pneumatic actuation ensures uniform pressure distribution across the entire sealing jaw surface
- Proprietary constant-temperature micro-control algorithm delivers ±0.2 °C thermal stability over full operating range (ambient to 300 °C)
- Configurable sealing jaw geometry (standard 150 mm × 10 mm; custom dimensions available upon request)
- Integrated safety mechanisms including thermal cutoff, insulated housing, and earth leakage protection per IEC 61010-1
- Flexible heating configuration: selectable single-side or dual-side heating for asymmetric or symmetrical thermal profiles
Sample Compatibility & Compliance
The HSPT-01 accommodates a broad spectrum of thermoplastic and laminated substrates used in sterile and non-sterile packaging applications. Validated material categories include polyethylene (PE), polypropylene (PP), polyester (PET), polyamide (PA), metallized films, aluminum foil laminates, paper-plastic composites, coextruded structures, and medical-grade tubing. All test protocols align with internationally recognized standards: QB/T 2358 (Chinese national standard for plastic film heat seal strength), ASTM F2029 (Standard Test Method for Measuring Heat Seal Strength of Thermoplastic Films), and YBB 00122003 (Chinese pharmaceutical packaging standard for heat-sealable composite films). The instrument supports GLP-compliant documentation when paired with external data logging systems.
Software & Data Management
While the HSPT-01 operates as a standalone benchtop unit with embedded firmware, its analog output interface (0–5 V or 4–20 mA) allows integration into validated LIMS or SCADA environments. All test parameters—including target temperature, applied pressure, dwell duration, and real-time thermal response—are timestamped and stored internally for up to 100 test cycles. Export functionality via USB port enables traceable CSV file generation for audit-ready reporting. For laboratories subject to FDA 21 CFR Part 11 requirements, optional PC-based software provides electronic signature capability, user access controls, and full audit trail functionality—including modification history and operator attribution.
Applications
- Optimization of heat seal parameters during formulation development of new packaging laminates
- Validation of sealing equipment settings prior to production line commissioning
- Comparative analysis of seal strength across different resin grades, additives, or surface treatments
- Accelerated aging studies correlating seal integrity with storage conditions (e.g., humidity, temperature cycling)
- Root cause analysis of package failures such as channel leaks, delamination, or seal creep under stress
- Regulatory dossier preparation for pharmaceutical primary packaging (e.g., blister lidding, pouch seals) and medical device sterile barrier systems
FAQ
What types of materials can be tested on the HSPT-01?
The instrument is validated for thermoplastic films, laminates, foils, and extruded tubes commonly used in food, pharmaceutical, and cosmetic packaging.
Does the HSPT-01 meet FDA or ISO compliance requirements?
While the hardware itself is not certified, its operational parameters and test methodology conform to ASTM F2029 and ISO 11607-2 Annex A guidelines for seal strength evaluation; full compliance depends on lab-specific SOPs and validation protocols.
Can sealing pressure be calibrated independently of temperature?
Yes—pressure and temperature are fully decoupled control variables; each may be adjusted within their respective specified ranges without cross-interference.
Is the sealing jaw interchangeable for different widths?
Standard configuration uses a fixed 150 mm × 10 mm jaw; custom-width jaws (e.g., 50 mm, 200 mm) are available as factory-installed options with recalibration certificate.
What maintenance is required for long-term accuracy?
Annual verification of temperature sensor calibration and pneumatic system leak testing are recommended; no consumables or routine part replacement is required under normal usage conditions.
