Simplifying Plastics Machining Using The Cold Gun And Chip Vac

I was recently contacted by a plastics manufacturer who was needing some solutions for problem areas in their production processes. The company imports their machines from overseas and they are outfitted with a coolant based, quench system for the tooling. They were wanting to get away from using coolant as the parts were absorbing liquid, causing them to swell, not to mention the mess they were creating, requiring more time and labor to dry and clean the parts manually.

For the first application, replacing the messy misting system, I recommended the customer use our Cold Gun System, Model # 5215. The Cold Gun uses Vortex Tube technology to produce a cold air stream 50°F lower than the incoming compressed air supply temperature. For example, if your supply air was ambient 70°F, you would effectively see 20°F air at the exhaust. This clean, cold air stream can be easily directed to the needed area to prevent any warping or other damage related to heat, while also blowing away the machined fines.

Model # 5215 – includes the Cold Gun, Single Point Hose Kit, 3/8″ Cone Nozzle, 1-1/4″ Fan Nozzle and Filter Separator

The second part of the process involved the recovery of the plastic scrap and chips created during the machining process. Once again, EXAIR has the ideal solution with our Chip Vac, Industrial Vacuum. The Chip Vac creates a powerful vacuum, with no moving parts or motors to wear out, making them virtually maintenance free. The Chip Vac is designed to vacuum dry or wet chips and collect them in a standard, open-top steel drum. Systems are available in 5, 30, 55 or 110 gallon capacities.

From small area clean up to larger scale processes, the Chip Vac has you covered

To discuss how EXAIR products might help improve your machining process, give us a call at 800-903-9247.

Justin Nicholl
Application Engineer
justinnicholl@exair.com
@EXAIR_JN

Machining Plastics? Consider The Cold Gun For A Clean Operation

Machining plastics can be a difficult task as the contact between the part and the tool generates heat, which can result in the plastics beginning to melt and stick to the tooling, causing deformities or even broken tool heads. Often times, companies will introduce a liquid based method of cooling to quench the parts during machining, while this does work, with plastics they tend to absorb some of the liquid, resulting in the finished part being outside the allowable tolerance range. Another area of concern is the mess that liquid cooling creates as now the parts need to be dried and cleaned before they can continue to the next process.

Coolant based systems can be messy and costly to operate

Such was the case last week when I worked with an OEM who was looking for a way to cool the tooling in the machines they build for the plastics industry. The company they were selling the machines to, specifically asked for an alternative method of cooling without using any type of coolant due to the conditions mentioned above. Once again, EXAIR has the perfect solution – the Cold Gun. Incorporating a Vortex Tube, the Cold Gun produces a cold air stream at 50°F below compressed air supply temperature and provides 1,000 Btu/hr. of cooling capacity. Fitted with a magnetic base and flexible hose the unit can be mounted virtually anywhere on the machine and the cold airflow can be easily directed to provide cooling to the critical area. The system also includes a filter separator for the supply line to remove any water or contaminants, ensuring that the exiting airflow is clean and free of debris.

No moving parts = maintenance free

 

When looking for a reliable method of cooling, whether machining plastics or other material, the cold, clean air from the Cold Gun is the ideal solution in place of messy misting systems. For help with your spot cooling needs or to discuss how using Vortex Tube technology could help in your process, give me a call, I’d be happy to help.

Justin Nicholl
Application Engineer
justinnicholl@exair.com
@EXAIR_JN

 

Coolant Spraying in the Mini Mill image courtesy of Andy Malmin via Creative Commons license