Heat Seal Packaging Equipment

A manufacturer of heat seal packaging equipment was having problems with consistent, repeatable temperature uniformity on their sealing bars. This resulted in poor seal quality and impacted customer satisfaction with the equipment.

Heat Seal Cartridge Heaters.jpg

Our Solution: We were called in to aid in finding a solution to the problem. We performed a radiographic examination of the competitive heaters, as well as dissected them to determine possible reasons for the lack of uniformity. Although the long cartridge heaters used in the seal bar had distributed wattage (to attempt to minimize cold ends on the seal bar), the wattage distribution was not matched to the profile of the seal bar. Therefore, there were areas on the bar which were too cool. When the temperature of the seal bar was increased, the other areas of the bar became too hot. Durex developed a modified "multi-step" cartridge heater with a distributed wattage profile in which the proper wattage distribution was "tuned" to the seal bar, thus eliminating the uneven heating which was causing the sealing problems.

The Results: Switching to the Durex cartridge heaters eliminated the seal quality issues and greatly increased customer satisfaction with the manufacturer's packaging equipment.

For the precise solution to your thermal challenge, contact us today at 866-712-5014.

See more information about Durex Cartridge Heaters.


Announcing Harris-Hanson Company as New Representative

Harris-Hanson Company is a St. Louis based representative firm serving the Central Plain States, which includes Missouri, Iowa, Nebraska, Kansas and Southern Illinois.

Thermal News September 2016

Selection of the best temperature sensor element and assembly is critical to the thermal accuracy and performance of industrial equipment, analytical instrumentation, and medical devices.

Thermal News February 2016

Six years ago, Durex embarked upon a business objective to become the best engineering and manufacturing company in our industry. This meant raising the bar of our engineering and manufacturing competencies.

Thermal News November 2015

Solving thermal problems is one hallmark of what Durex brings to customers. We would like to share 3 examples of how Durex solved challenging applications.

Thermal News July 2015

Welcome! Durex’ core technologies and advanced thermal solutions provide superior performance - giving our customers advantages in their industries.

Durex Announces the SENTINEL® Molded Foam Silicone Rubber Heater

Durex Industries’ SENTINEL heaters offer the advances of improved thermal efficiency, higher process temperatures, and reduced system cost.

Announcing the UL Listing and Launch of the HALO® Temperature Controller

HALO is a patent pending integrated controller that reduces thermal system complexity and cost as compared to traditional solutions.

New Mica Foil High Temperature Heater Technology

Need uniform heat with fast response for applications up to 1112°F (600°C)?

Case Studies