Stretch film is wrapped tightly around pallet loads, packages, or objects to secure them together or keep them protected. Shrink wrap, on the other hand, is applied by first covering the item loosely; heat is then used on the shrink wrap, causing it to shrink tightly around the package.

The type of sealer used depends on the polymer material being sealed, its thickness, and desired production levels. Heat-sealed packaging is quick, efficient, and perfect for high-speed operations. It also provides all-around coverage and complete enclosure of individual or multi-product packs.

Seal jaw pressure is perfected when machines are built, but worn parts or misaligned jaws can affect it over time. As a test, put a white piece of paper in the seal area and engage the jaws to lower and seal.

An automatic L-bar sealer is a packaging machine that seals and wraps products in a variety of materials, including shrink film, using a heated sealing bar that creates a seal around the product. The machine automatically feeds seals and cuts the film, making it a fast and efficient way to package products.

PE heat shrinkable film is suitable for aggregate packaging, offering flexibility and impact resistance. POF heat shrinkable film caters to items that require high packaging viability and environmental performance. PVC heat shrinkable film is excellent for items demanding higher shrinkage and transparency.

L-bar shrink wrappers are the most popular category of shrink wrap machines. In the shrink sealer market, l-bars are usually available in manual, semi-automatic and automatic models.

In today's fast-paced and efficient era, the packaging industry is undergoing unprecedented changes.

In recent years, the market for heat shrink wrapping machines has maintained a strong growth trend, and technological innovation has become a key force driving the industry forward.

With the rapid development of the Internet and live shopping, the market demand for heat shrink wrapping machines is growing day by day.