The new PDC KST 55 is a high quality steam tunnel that incorporates many of the engineering features (such as proprietary nozzle positioning technology and dual-wall stainless steel construction) which have distinguished its larger capacity tunnels and labeling systems. Mounted on the stainless tunnel frame is a compact steam generator fully plumbed for production, eliminating the need for external steam sources.
The KST 55 is a single zone system that precisely focuses the application of heat. This minimizes energy use, optimizes container appearance, and minimizes the risk of container distortion. There are five rows of steam distribution tubes on each side, and each is externally adjustable for steam volume.
With the optional Electronic Regulator, tunnel temperatures are self-monitoring and adjust continuously to compensate for the “thermal loads” of incoming product. This is particularly important with full and cold containers.
The KST 55 is a moderate speed tunnel, operating up to 100 cpm. It can be used without an electronic regulator for highest-flexibility, manual control. Containers can be filled or empty, and virtually any geometry, including round, oval and square packages. PVC, PETG, OPS and PLA films, in gauges as thin as 40 micron, are compatible.
For higher speeds, PDC also offers the KST 80, a Dual Zone 80” Steam Tunnel which can also be built with an integrated steam generator.
Optional equipment includes conveyor, cantilevered tunnel stand for easy raising and lowering, a powered steam venting manifold with dampers, and condensate diverter package. Steam filtering down to .5 micron provides culinary grade steam while removing impurities.
The KST steam tunnel with integrated steam generator is an excellent alternative for end-user packagers and contract packers who want a highly reliable and very economical steam shrink tunnel. It is ideal as a stand-alone system, or as a supplemental “third zone” for a dual-zone tunnel. It is also highly efficient as a pre or post-shrink module. Opening dimensions for the KST 55 are 4-12” in height and 5 to 7” in width, depending upon the application.
Like all steam tunnels, and shrink labeling systems provided by PDC, the KST 55 is manufactured using many readily-available off-the-shelf components. This assures that the system will be easy and inexpensive to maintain throughout its long service life.