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Adjustable Steam Tunnel operates at up to 200 cpm.

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Adjustable Steam Tunnel operates at up to 200 cpm.
Adjustable Steam Tunnel operates at up to 200 cpm.
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January 26, 2012 - Featuring stainless dual wall construction, Model KST 80A-712 with Steam Venting Package is compatible with wide range of containers, including those that are challenging to shrink consistently. Dual-zone system has 5 rows of steam distribution tubes on each side, each externally adjustable for steam volume, flow, and rotary position. Monitoring tunnel temperatures in real-time, Electronic Regulator makes continuous adjustments in steam release to compensate for thermal loads of incoming product.

"Adjustable Steam Tunnel Offers Virtually ""Universal"" Shrink Performance

(Archive News Story - Products mentioned in this Archive News Story may or may not be available from the manufacturer.)

PDC International Corp.
8 Sheehan Ave.
South Norwalk, CT, 06854

Press release date: January 24, 2012

Norwalk, CT. PDC International Corporation, a world leader in high-volume shrink labeling and shrink tunnel technology, has introduced an agile new steam tunnel to its broad product line.

The KST 80A-712 with Steam Venting Package is a high quality tunnel system featuring stainless dual wall construction. It is compatible with the widest range of containers, including those that are challenging to shrink consistently, and many that previously required a second tunnel to complete the task.

The KST 80A-712 is a dual-zone system with five rows of steam distribution tubes on each side. Each row is externally adjustable for steam volume, flow and rotary position, so adjustments can be made without waiting for the tunnel to cool. A proprietary nozzle positioner directs steam during the shrinking process, optimizing steam resources and keeping utility costs low.

Steam regulation is key to consistency, so PDC precisely regulates steam flow in five distinct ways: step-down regulators, condensate traps, steam filtering, a proprietary steam valve and electronic regulation.

The Electronic Regulator developed by PDC monitors tunnel temperatures in real time, and makes continuous adjustments in steam release to compensate for the "thermal loads" of incoming product. This is particularly useful when the system is running full or cold containers. A digital controller indicates the target temperature, actual temperature, and percent open for the main steam valve, and controls the chamber temperature to + 2 degrees F.

The KST 80A is a moderate speed tunnel, operating up to 200 cpm depending upon container shape. Containers can be filled or empty, and virtually any shape, including round, oval or square. PVC, PETG, OPS and PLA films, in gauges as thin as 30 micron, all shrink uniformly in the KST-80A.

The system is designed to mount over existing conveyors, or PDC can provide conveyors specifically constructed for use in steam. Upgrades that are in highest demand include product counters, lift stands, and two options for managing condensate. The first is a heated shroud that covers the containers inside the tunnel with a heated stainless steel channel. This prevents condensate drip and minimizes moisture around the cap or inside bottles while being labeled empty. Also available is a condensate diverter package and a culinary grade steam filter that purifies incoming steam. Steam venting options include a stainless manifold to direct steam to the exhaust, and a blower stand with variable frequency drive.

The KST 80A is an excellent solution for end-user packagers and contract packers who need an exceptionally flexible and reliable shrink tunnel at a very economical cost. The KST 80A was designed as a versatile stand-alone system, but is effective as well as a pre or post-shrink module. Opening dimensions for the KST 80A are 7" wide X12" high.

Like all PDC steam tunnels, the KST 80A is manufactured in the USA using high quality, standard components that are readily available. This assures that the system will be easy and inexpensive to maintain throughout its long service life.

PDC manufactures shrink tunnels for every packaging task, including convection hot air and radiant infrared systems, single and multiple-zone tunnels, and pre and post shrink systems. Systems can be fully integrated with packaging machinery, or operate independently.

For more information, contact Gary Tantimonico at PDC International, Norwalk, CT 203-853-1516 or visit
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