Heat seal tester EF628

pressuretemperaturelaboratory

Product description
The EF628 heat sealing tester is an industrial laboratory instrument designed to evaluate heat sealing performance of films and laminated materials for quality control and material development. It applies controlled pressure, temperature and time to deliver repeatable seal strength results and supports process optimisation. The product meets the requirements of YBB 00122003-2015 "Determination of Thermal Strength".

Features

• Fully automatic digital closed-loop pressure control for stable and repeatable sealing pressure.
• Sixteen independent temperature-controlled all-copper hot sealing heads, arranged as 8 sets to obtain eight results in a single sealing cycle.
• Digital PID temperature control with high-precision sensors for fast heating and minimal fluctuation.
• Automatic hot-head leveling technology to ensure uniform sealing across all heads.
• Integrated quick-print function for convenient recording of sample test data.
• Large touchscreen tablet for clear display and intuitive operation.

Applications
Suitable for heat sealing tests of plastic films, plastic composite films, paper-plastic laminates, co-extruded films, metallized films, aluminum foil and aluminum-foil composite films, and other sheet materials. The smooth flat hot cover enables simultaneous sealing at eight different temperatures for comparative evaluation and material screening.

Technical specifications

• Heat sealing temperature: ambient temperature to 350 °C
• Heat sealing pressure: 0.1 MPa to 0.7 MPa
• Pressure resolution: 0.01 MPa
• Heat sealing time: 0.1 – 999.99 s
• Time resolution: 0.01 s
• Temperature resolution: 0.1 °C
• Temperature fluctuation: ±0.2 °C
• Temperature accuracy: ±0.5 °C (single point calibration)
• Hot cover size: 35 mm × 12 mm
• Heads: 8 sets (16 heads total, top and bottom, each with independent temperature control)
• Dimensions: 529 mm (L) × 418 mm (W) × 431 mm (H)
• Power supply: 220 VAC ± 10% 50 Hz
• Net weight: 65 kg