Toss boosts high-speed heat sealing with water-cooled jaw bars
Key takeaways
- Toss Machine Components has highlighted water-cooled jaw bar assemblies for precision heat sealing in high-speed packaging operations.
- Controlled cooling can shorten seal-setting times and increase production speeds by accelerating the cooling cycle.
- Toss warns that excessive cooling may raise energy use and cause condensation, making temperature control and material knowledge essential.
(Image credit: Toss). Toss Machine Components has highlighted its water-cooling jaw bars for high-speed heat-sealing applications.
The Toss Jaw Bar Assemblies include the basic jaw bar, jaw end blocks, and heat seal band. Designed to enable precision and uniformity, the cooling bars are made from extruded aluminum and come in lengths up to 12 feet.
The end blocks of the bars provide “convenient” mounting, tensioning, and electrical connection for heat seal bands.
“In many applications, the natural heat absorption of the aluminum jaw bar is sufficient,” explains Toss. “However, in high-speed impulse sealing operations, additional cooling can help accelerate the cooling cycle, reduce the time required for the seal to set, and support higher production speeds.”
Additionally, the machinery company explains that excessive cooling can increase energy demand and may create “unwanted moisture condensation” if temperatures fall below the dew point.
“For this reason, temperature-controlled water can be a valuable aid when greater productivity justifies the investment and when the sealing characteristics of the material are properly understood,” continues Toss.
Heat-seal innovations
Recently, Siegwerk launched the heat-sealing lacquers portfolio within its Cirkit coatings brand. The global provider of printing inks and coatings said Cirkit Novaseal brings together its circular economy strategy and heat sealing expertise, integrating the know-how and technologies gained through its acquisition of Allinova.
Meanwhile, Sappi added a set of heat-sealable solutions to its range of functional packaging papers, and Mondi launched kraft paper for coated and heat-sealable packaging solutions.
