The GWSZ-300 is a high-performance handheld constant heat sealer made in Germany, engineered for sealing kraft paper, coated foil, and other heavy-duty materials. Its 12mm serrated seal delivers excellent strength and appearance, while PTFE-coated jaws prevent sticking and ensure easy cleanup.
This direct heat sealer is ideal for odd-shaped or oversized packages that won’t fit in a tabletop unit. Simply adjust the temperature using the built-in dial, allow 5–15 minutes for warm-up, and press the jaws closed for a few seconds to create a secure seal. Fine-tune heat and timing as needed based on material thickness and type.
