Model : PLHS-23
The Prima PLHS-23 is a compact, reliable laboratory heat sealer with a 300 mm (30 cm) sealing bar designed for secure, tamper-resistant sealing of thermoplastic packaging in labs, clinics, pilot plants and packaging QC. Engineered for repeatable, easy operation, the PLHS-23 combines precise temperature control, adjustable sealing time, and a robust build so you get clean, consistent seals with minimal operator training.
The Laboratory Heat Sealer Prima 300 mm is a high-precision testing instrument designed to seal flexible packaging materials under controlled temperature, pressure, and time. It is widely used in packaging, food, pharmaceutical, and research industries to evaluate the sealing quality of films, laminates, and foils. With its user-friendly interface and consistent performance, this sealer ensures reliable test results that help manufacturers maintain packaging standards.
Choosing the Laboratory Heat Sealer Prima 300 mm means investing in quality, precision, and reliability. It helps packaging manufacturers, R&D labs, and quality control teams evaluate sealing strength with confidence. Its advanced design ensures consistent performance, making it a trusted tool for achieving safe, secure, and reliable packaging solutions.
Presto Instruments is a leading manufacturer and supplier of Laboratory Heat Sealer Prima 300 mm in Sri Lanka. For the best price, contact us for a quote or call now!
| Equipment Range | Ambient to 350ºC |
| Sealing T emperature Working range | Ambient to 230ºC |
| Accuracy | ± 1ºC |
| Least Count/Resolution | 0.1ºC |
| Power | 220V , Single phase, 50 Hz |
| Sealing size** | 150x 15 mm OR 300x 15 mm |
| Temperature Controller | 4 digit PID |
| Dwell Heat Seal time | 0.1 – 99.9 sec |
| Timer | 4 Digit Digital |
| Heat Sensor | Pt-100, Platinum Resistance Temperature Detector (RTD) |
| Sealing Pressure | 2 - 6 Bar |
Highlights:
| Temperature Controller | PID |
| Timer | Digital Preset type |
| Heat Source | Cartridge Heaters |
| Seal Pattern | Straight line, Plain & Diamond Knurling (select any one pattern) |
| T est Performed | Heat Steel |
| Material | Mild Steel |
| Finish | Powder Coated Havel Gray & Blue Combination Finish and Bright Chrome / Zinc Plating for Corrosion Resistant Finish |
| Dimensions | 500 x 476 x 515 mm |
Yes. The PLHS-23 includes:
An insulated handle to prevent heat transfer
Over-temperature protection
Indicator lights for heating and sealing status
Stable non-slip base for safe bench operation
The Prima PLHS-23 is designed for sealing thermoplastic materials such as polyethylene (PE), polypropylene (PP), and laminated films. It’s commonly used in laboratories, R&D centers, universities, and small-scale production for securely sealing sample bags, pouches, and packaging materials.
The Prima PLHS-23 features a 300 mm sealing bar, which means it can seal bags or pouches up to 300 mm wide in a single pass.
Temperature range: Ambient to approx. 250°C
Sealing time range: Typically 0.1 to 10 seconds
(Exact ranges may vary slightly depending on model variant.)
The sealer is suitable for a wide range of heat-sealable materials, including:
Polyethylene (LDPE, HDPE)
Polypropylene (PP)
Laminated or co-extruded films
Foil-laminated pouches (depending on thickness)
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