Vacuum Sealing Principle
Air is extracted from the packaging bag by a vacuum pump to create a low-oxygen environment, and then the bag mouth is sealed using heat sealing technology. Generally, items are placed into the packaging bag and positioned in the working area of the machine. After the machine is started, it first performs compression, followed by air extraction. Once the preset vacuum level is reached, the heat sealing device activates, heating and melting the bag mouth for pressure bonding to complete sealing.
Product Features
- High Compression Ratio: Significantly reduces product volume by more than 50%, enabling more efficient storage and stacking, and lowering transportation costs by approximately 70%.
- Secure Sealing: Vacuum sealing after compression delivers excellent sealing performance with an air leakage rate below 0.5%, effectively protecting against moisture, dust and oxidation.
- Intelligent Operation: Some models are equipped with a microcomputer control panel and LCD display, supporting customized settings such as compression time and sealing temperature. They also feature fault self-diagnosis to provide real-time abnormality alerts and reduce downtime for maintenance.
- Strong Adaptability: Supports customized packaging of various specifications, with molds adjustable according to product dimensions, suitable for diverse applications including food, medical devices, electronic components and more.
Scope of Application
Mainly used for compressed packaging of fluffy items such as down quilts, space quilts, pillows, cushions, clothing and sponges. Also applicable to compressed packaging of food, beverages, candies, cultural supplies, arts and crafts, hardware tools, daily necessities, chemical products and other items.
Typical Structure
Generally includes a dual-cylinder compression device, sealing strip, bottom plate positioning device, etc. The dual cylinders provide strong pressure to ensure compression effect; the sealing strip lifts and lowers with the upper platen for easy operation; the bottom plate positioning device compresses packaged items to a fixed thickness for more uniform packaging.
