PLASTIC PROCESSING CHILLERS

Chillers for the Plastic Industry

For decades, Cold Shot Chillers has provided plastic processing chillers to hundreds of customers. Our cooling systems will satisfy your requirements with reliable temperature stability for smoother operation and higher product quality. Our line of plastic industry chillers serves the following applications.

Industrial Chillers for Blow Molding

The bottled beverage and other plastic bottle-intensive industries significantly depend on blow molding. Moreover, blow molding has been the go-to process since the advent of bottled water in the 1990s to current modern-day applications.

What is Blow Molding?

Blow molding is an industrial manufacturing process essential for creating hollow plastic parts. Manufacturers leverage this process to form plastic water bottles and other hollow-shaped plastic materials. Chillers for plastic processing are crucial for achieving high-quality products in this process.

How Are Chillers Used in Plastic Blow Molding?

The blow molding process begins with extruding a parison from a plastic injection mold closely placed to the blow molding equipment. Next, two-sided bottle-shaped metal molds come together to enclose the parison previously loaded onto a stand. Before the manufacturers cool down the parison, they inject a hollow ramrod into its center, expanding the warm plastic preform. Cooling via air or water-cooled chillers efficiently cools the molten plastic, expedites the production cycle, and improves the surface finishing of the plastic product, making it essential in this process.

Industrial Chillers for Plastic Extrusion

Temperature control is crucial to several plastic manufacturing processes, including plastic extrusion. Incorporating industrial chillers allows manufacturers to achieve adequate temperature control and relevant process optimizations.

What is Plastic Extrusion?

Plastic extrusion includes manufacturing a continuous profile of products from raw plastic in high volumes. This process is ideal for manufacturing a wide range of products, including fencing, pipe/tubing, deck railings, weatherstripping, plastic films, window frames, thermoplastic coatings, and wire insulation.

How Are Chillers Used in Plastic Extrusion?

Plastic extrusion chillers supply chilled water to cool the barrel of each extruder, keeping the melt temperature of base materials and additives within specific temperature ranges to achieve high-quality plastic products. Manufacturers typically incorporate chiller-intensive cooling towards the end of the extrusion process: cooling is vital for the resulting extrudate, depending on its shape and profile. Moreover, these chillers are necessary for accurate temperature control in plastic extrusion lines.

Industrial Chillers for Injection Molding

Using chillers in injection molding gives the operator an edge in terms of efficiency. Industrial water chiller manufacturers provide excellent units for close temperature control in injection molding. In addition, they come in various capacities and sizes to suit the unique needs of any application.

What is Injection Molding?

Plastic injection molding is the process of injecting plastic into a mold to create a solid part. This process determines the shape of the molded part after it cools and solidifies. The main injection molding process steps are injection, cooling, and ejection.

1. Injection
During the injection process, plastic granules are inserted into the injection molding machine through the attached hopper. Thermoplastic resins are then directed to the heating barrel, where frictional heating and ban heaters aid the melting process. Finally, a nozzle injects the resulting molten plastic into the mold.

2. Cooling
Immediately following injection, the molten plastic is cooled at a specific rate to allow the newly formed workpiece to harden inside the mold. Coolant cycled through the mold lowers the temperature at a specific rate and ensures that the plastic hardens quickly.

Alternatively, operators can use an injection molding chiller to provide greater cooling efficiency. Other factors that contribute to the cooling duration include the type of resin used and the thickness of the workpiece being created.

In a typical injection mold cooling system, the cooling time takes up a large part of the cycle time (up to 60%). It does not end until the molded part has solidified enough to be ejected, leaving only minimal residual plastic. This temperature can be between 392°F and 572°F and falls to about 140°F after cooling.

3. Ejection
The final step of the injection molding process is ejection. The ejector pins retract, and the molded part comes out of the mold and falls into a receiver or onto a platform.

Cold Shot Chillers Has the Plastic Industry Cooling Solutions You Need!

Are you looking for high-performance chillers for your plastic industry processes? Look no further! Cold Shot Chillers provides a broad range of water-cooled and air-cooled chillers with close temperature tolerance to ensure the excellent quality of final products. Over the years, we have helped tens of thousands of customers.
Please contact us online today for more information about our high-performance chiller units for your plastic processing needs.