No preheating required This sealing machine is compact, portable, and easy to use. No preheating time is required, the heat control can be adjusted, various bags and films can be sealed, and there's a timer for sealing control. Fast heat dissipation The sealing machine has a heat dissipation function at the bottom, ensuring fast heat dissipation and no heat build-up during long-term operation. Easy to use Just plug the power cord into the socket, and the heating time can be adjusted according to the sealing thickness of the material. Place the plastic bag on the sealing machine, then press the handle, the LED indicator will light up, and the machine will control the heating time itself. When the LED indicator turns off, the power is automatically disconnected. Release the handle after 1-2 seconds to complete the seal. Suitable sealing size Sealing machine size: 53x8.5x8.5 cm. Maximum sealing size: 400 mm (L) x 8 mm (W). Wide range of applications The manual pulse sealing machine can seal plastic bags, polypropylene (polypropylene bags), PP plastic, bubble bags, PVC, polyester, kraft paper bags, and tea bags. Used for sealing food, gifts, office supplies, shopping bags, and other products. Description: Hand-operated impulse sealers are portable machines used to seal plastic bags, polypropylene (polyethylene bags), bubble bags, PVC, polyester, kraft paper bags, and tea bags. Seals a wide range of bags and films. Adjustable heat controls. Timer for sealing control. Compact and portable. Seals all types of plastic. No warm-up time needed. Material: Plastic. Max sealing LxW: 400 mm (L) x 8 mm (W). Dimension (LxWxH): Approximately 53x8.5x8.5 cm. Instructions for use: 1. Just plug the power cord into your socket, adjust the heating time according to the sealing thickness of the material. Place the plastic bag on it, then press the handle, the LED indicator will light up, the machine will control the heating time itself. When the LED indicator turns off, the power is automatically disconnected. Release the handle after 1-2 seconds, then the seal is complete. 2. The LED indicator only lights up when the machine is sealing; it does not light up if you just plug it into the socket. 3. If damage occurs during sealing, it means the heating time is too long, then shorten the heating time by turning the timer knob counter-clockwise. 4. If an uncertain seal occurs, it means the heating time is too short, then extend the heating time by turning the timer knob clockwise. 5. If the plastic bag is sticky to the machine, it means the cooling time is not long enough. Extend the cooling time after the LED light has turned off, hold the handle longer before releasing. 6. If the heating time is adjusted, do not make changes during sealing or continuous sealing. Package includes: 1 x Impulse Sealer