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| Product Name | labchen STH-3 Heat seal Tester | jingwen JW-RF330S Digital heat sealing instrument |
| Product Price | $1663.00 | $1300.00 |
| Details | Details | |
| Model comparison | ||
| Heat Sealing Method | Hot Bar Sealing | Hot Bar Sealing |
| Heating Type | Switchable Single/Dual | Dual Heating |
| Seal Pattern | Bar Seal | Bar Seal |
| Number of Seal Jaws | Dual Jaws | Dual Jaws |
| Temperature Range | RT+~250℃ | RT+~300℃ |
| Pressure Range | High Pressure (≥0.6MPa) | Medium Pressure (0.2-0.6MPa) |
| Sealing Duration | Long (≥10s) | Long (≥10s) |
| Parameter comparison | ||
| Power supply Voltage | AC 220V 50HZ | AC 220V 50Hz |
| Heat sealing temperature | RT+10~250℃ | RT+~300℃ |
| Temperature control accuracy | ±1℃ | ±1℃ |
| Heat sealing pressure | 0~ 0.7Mpa Range can be adjusted | 0.05 MPa~0.7 MPa |
| Heat sealing area | 300 * 10Mm (Miscellaneous Size can be customized) | |
| test mode | Manual mode/automatic mode (manual mode is controlled by foot switch, automatic mode is controlled by adjustable delay relay) | |
| Air source pressure | ≤ 0.7MPa (user-provided) | 0.5 MPa~ 0.7 MPa (gas source user-provided) |
| test conditions | Standard laboratory environment | |
| Dimension | 550*330*460mm（L*B*H） | 500*330*480mm（L*B*H） |
| Net weight | Approx. 30 kg | |
| According to the standard | QB/T 2358, ASTM F2029, YBB 00122003, etc | |
