GBPI GBB-A – 5-Point Gradient Packaging Heat Seal Tester
- Advanced 5-point gradient packaging heat seal tester for plastic films, composite laminates, and barrier pouches
- Full testing compliance with ASTM F2029, QB/T 2358, YBB 00122003, and ASTM F88
- Five independently controlled upper and lower heating jaws establishing 5 distinct temperature gradients simultaneously
- Wide sealing temperature range from Room Temperature ~ 250 °C with precision of ±0.5 °C
- Pneumatic clamping pressure adjustable from 0.05 to 0.7 MPa with precision timing from 0.1 s to 99.9 h
- Generates complete heat sealing curve profiles (temperature vs. seal strength) in a single operational sequence
- Integrated touchscreen control terminal with automated pneumatic foot-switch and operator safety light-curtain shield
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The GBPI GBB-A is an advanced, high-efficiency gradient packaging heat seal tester engineered to determine the optimal heat sealing parameters — including sealing temperature, dwell time, and sealing pressure — for plastic films, flexible composite packaging, barrier foils, and coated papers. Built in strict accordance with recognized sealing standards including ASTM F2029 (standard practices for making heatseals for determination of heatsealability of flexible webs as measured by seal strength), QB/T 2358, and pharmaceutical YBB 00122003 protocols, this five-station laboratory instrument drastically accelerates seal parameter optimization.
Heat sealability is the fundamental technical property governing flexible packaging integrity on industrial vertical and horizontal form-fill-seal (FFS) lines. Conventional single-jaw sealers require operators to execute five separate heating, clamping, and waiting cycles at incrementally adjusted temperatures to establish a seal curve. Operating as a gradient packaging heat seal tester, the GBPI GBB-A features five pairs of precision aluminum sealing jaws arranged in parallel. Each upper and lower jaw pair is equipped with an independent PID digital temperature controller and platinum thermal resistor, allowing technicians to program five distinct sealing temperatures simultaneously across a single test strip in one clamping cycle.
Five-Point Gradient Efficiency & Uniform Pressure
By producing five sealed specimens across a defined temperature spectrum in one single press, testing cycle times are reduced by 80%. A precision pneumatic cylinder applies uniform pressure across all five sealing stations, eliminating mechanical tilting and ensuring consistent heat flux transfer.
Independent Upper & Lower Thermal Regulation
The instrument enables independent heating control for the upper and lower sealing jaws. This capability is crucial for characterizing asymmetrical multilayer barrier webs (such as PET/Al/PE or paper/foil laminates), where the heat transfer coefficient differs substantially between the inner sealant web and outer heat-resistant substrate.
Equipped with an intuitive touchscreen display, manual foot pedal actuation, and anti-scald protective shielding, the GBB-A provides packaging converters, resin manufacturers, and food packers with reliable, repeatable seal curve data.
GBPI GBB-A 5-Point Gradient Heat Seal Tester – Technical Specifications
| Technical Parameter | Specification Details |
|---|---|
| Sealing Stations | 5 independent sealing stations (5 temperature gradients concurrently) |
| Applicable Standards | ASTM F2029, QB/T 2358, YBB 00122003, ASTM F88 |
| Heat-Sealing Temperature Range | Room Temperature ~ 250 °C (Customizable up to 300 °C) |
| Temperature Control Accuracy | ±0.5 °C (Independent upper & lower PID regulation) |
| Heat-Sealing Dwell Time | 0.1 s ~ 99 h 59 min 59.9 s |
| Sealing Pressure Range | 0.05 MPa ~ 0.7 MPa (Pneumatic regulation) |
| Sealing Jaw Dimensions | 40 mm × 10 mm per station × 5 stations (Custom jaw sizes available) |
| Sealing Surface Options | Smooth flat surface or grooved corrugated pattern |
| Pneumatic Air Source Requirement | 0.5 ~ 0.8 MPa clean dry compressed air (Φ6 mm connector) |
| Dimensions & Net Weight | 550 mm × 380 mm × 500 mm; 45 kg |
| Power Supply & Rating | AC 220 V ±10%, 50 Hz / 60 Hz; Rated Power: 2,000 W |
Key Features & Engineering Innovations
- 5-Station Temperature Gradient Sealing: Simultaneously seals five specimen zones at distinct temperatures, allowing fast determination of seal initiation temperature (SIT) and operating window.
- Independent Upper and Lower Heating: 10 independent digital PID heating elements allow identical or differential heating between upper and lower jaws for asymmetrical laminate testing.
- Precision Pneumatic Clamping: High-precision pneumatic actuator guarantees uniform clamping force across all five sealing zones, eliminating seal wedge errors.
- Digital Touchscreen Control: User-friendly touch terminal provides intuitive parameter setting, dwell time countdown, and actual temperature monitoring.
- Dual Actuation Modes: Supports automated cycle timing or operator-controlled pneumatic foot pedal actuation for effortless specimen positioning.
- Operator Safety Protection: Includes anti-pinch safety shields, emergency stop button, and heat-insulated barrier covers.
Standard Scope of Delivery
| Item | Description | Quantity |
|---|---|---|
| 1 | GBPI GBB-A 5-Point Gradient Heat Seal Tester Main Unit | 1 Unit |
| 2 | Installed 5-Station Aluminum Sealing Jaws (40 mm × 10 mm × 5) | 1 Set (Upper & Lower) |
| 3 | Pneumatic Foot Pedal Switch with Connection Cable | 1 Unit |
| 4 | Pneumatic Air Source Hose (Φ6 mm) & Pressure Regulator Interface | 1 Set |
| 5 | High-Temperature Release Film Sheets & Heavy-Duty Power Cord | 1 Set |
| 6 | Factory Calibration Verification Certificate & Technical Manual | 1 Set |
Test Standards Compliance
- ASTM F2029: Standard Practices for Making Laboratory Heatseals for Determination of Heatsealability of Flexible Barrier Webs as Measured by Seal Strength
- QB/T 2358: Test method for heat seal strength of plastic film packaging
- YBB 00122003: Heat sealing test method for pharmaceutical packaging materials
- ASTM F88: Standard Test Method for Seal Strength of Flexible Barrier Materials
Target Materials
- Flexible Packaging Films: PE, PP, PET, PA, EVOH, and multilayer coextruded barrier webs.
- Composite Laminates: Aluminum-plastic foil laminates, paper-polyethylene composites, and retort pouches.
- Medical Packaging: Tyvek sterile packaging, dialysis paper pouches, and pharmaceutical blister lid films.