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Sealing Machines

Equipment used to create a hermetic seal on packaging, containers, or products to protect contents from contamination, moisture, or tampering, and to preserve freshness.

Types of Sealing Machines

Heat Sealers: Use heat and pressure to melt and bond thermoplastic materials.

Impulse Sealers: Apply heat for a short pulse, then cool under pressure.

Constant Heat Sealers: Maintain continuous heat.

Band Sealers: Continuous sealing for higher volume.

L-Bar Sealers: For shrink wrapping.

Pouch Sealers: For sealing pre-made pouches.

Induction Sealers: Use electromagnetic induction to create a non-contact seal (often for bottle caps with foil liners).

Vacuum Sealers: Remove air before sealing, preserving perishables.

Bag Sealers: Specifically for sealing plastic bags.

Tray Sealers: For sealing trays with film.

Blister/Clamshell Sealers: For sealing blister packs.

Applications in Various Industries:

Food & Beverage: Packaging snacks, coffee, frozen meals, fresh produce, liquids.

Pharmaceuticals: Sealing sterile products, blister packs, tamper-evident seals.

Cosmetics: Packaging creams, lotions.

Chemicals: Sealing hazardous materials, industrial products.

Electronics: Protecting sensitive components from moisture.

Medical Devices: Sterile packaging.

Material Selection Considerations

  • Sealing Jaws/Bars: Aluminum with Teflon coating for non-stick properties and even heat distribution.
  • Heating Elements: Nichrome wire or similar resistance heating alloys.
  • Frame: Stainless steel (especially for food/pharma) or powder-coated steel for durability and hygiene.
  • Conveyor Belts: Food-grade materials (PU, PVC), heat-resistant materials.
  • Vacuum Components: High-quality pumps, robust hoses, and chambers (stainless steel, durable plastics).
  • Gaskets/Seals: Silicone, EPDM, or other temperature-resistant elastomers for vacuum sealers.


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