Impulse heat sealing is commonly used for joining thermoplastic materials such as Polyethylene and Polyurethane that require a moderate temperature to establish an effective seal. Impulse sealing is often used to seal multi-layer, metalized, and oxygen barrier bags and pouches. Properly configured, an impulse heat sealer can join two sheets of fairly heavy thermoplastic materials. Largely determined by the material being used, heat sealing usually requires a specific combination of heat, pressure, and time between each step. One of the advantages of impulse sealing is its inherent safety. High heat is only present when the sealing jaws are closed under pressure and the sealing elements is energized. This means that it is virtually impossible to become burned upon contact with the sealing jaws. While the jaws can retain a small amount of residual heat over hours of continuous use, the temperature never reaches a dangerous level. The light will turn on when the sealer is activated and will turn off once sealing is completed. Use the appropriate heat setting for your material. Heat-sealed bags make sure that your products are airtight, water-resistant, and tamper-proof. Technical Specification: Model - PFS-400, Power source - AC220V/50HZ 110V/60Hz, Power - 600W, Sealing length - 400mm, Sealing width - 3mm, Heat time - 0.2-1.3 sec, Machine size - 550*85*180mm, Machine weight - 5.2 KG, Warranty Period - 1 year